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431 Cards in this Set
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- Back
- 3rd side (hint)
Severe neutropenia shows up with which infections? |
skin infections, stomatitis otitis media |
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Differential for neutropenia? |
1. Virus or Medications 2. Splenomegaly!! 3. Schwachman-Diamond 4. Cartilage-Hair Hypoplasia 5. Lysosomal disease (Chediak-Higashi LYST, Griselli RAB27a, & Hemansky-Pudlak ADTB3a) 6. WHIM CXCR4 Cyclic neutropenia (ELA4 mutation, mono reverse), Chronic Benign Neutropen (200-1500), mild inf Neonatal Isoimmune Neut (NIN), like RH Kostmann HAX (Familial Severe Neut), AR AutoImmune Neutropenia of Infancy |
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Autoimmune LymphoProliferative Syndrome (ALPS):
- clinical symptom - underlying issue - labs would show
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-sx: cytopenia with fevers -Issue: failure of Fas-L (CD178) to induce lymphocyte apoptosis. Lymphs multiple and can suppress other cell lines (low RBC, neutrophils, plt) - Labs: increased double negative alpha/beta T cells (CD3+, CD4-, CD8-), increased Vit B12 |
You reach double negative degrees in the ALPs and need vitamin B, Fast!! Otherwise you get cytopenias with fever! |
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Name some chromosomal breakage syndromes. |
Chromosomal breakage (FYI: photosensitive): 1. Ataxia telangiectasia (cytopenia with fever) 2. Nijmegen (similar to A-T) 3. Bloom's syndrome (short, photosens, unusual face) 4. Fanconi anemia 5. * hypothyroidism |
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What is Chediak Higashi syndrome? How is Griselli different? |
AR mutation in CHS (aka LYST) gene Affect lysosomal trafficking regulator protein, which leads to a decrease in phagocytosis.
clinical picture: CH ANNN - albinism - NK cell phagocytosis prob - neutropenia possible - neuropathy In CH, you see giant azurophilic granules that lack proteins. In Griselli RAB27a, you don't. |
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HAE treatment(s) that block kallikrein? Brands? |
C1 inhibitor (chronic Cinryze, acute Berinert, recombinant Ruconest) ecallantide (Kalbitor) |
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HAE treatment that blocks bradykinin B2 receptor? Brand? |
Icatibant (Firazyr) |
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What chemokine is in follicular zones? Receptor? |
CxCR5 bind CxCL13 in follicular zone |
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Most potent chemoattractsnt for neutrophils and it receptor? |
Neutrophil CXCR2 binds IL-8 (CXCL-8) |
Neutrophil X2 is IL8erate (illiterate) |
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WHIM syndrome stand for? Mutation? Ligand? Inheritance? |
Warts, Hypogam, Inf, Myelokathexis. gof CXCR4 mutation - binds CXCL12 Autosomal Dominant Also get neutropenia
Neutr CxCR2 : CXCL8 (IL-8) WHIM CxCR4 : CxCL12, (FYI, CXCR4 is also on HIV) CxCR5 : CxCL13 Follicular |
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This VIT is standardized for?
Action? Med that can block? |
Phospholipase A2 (Api m 1 in honey bee) -Note: note x-reactive with vespid PLA1 PLA2 produces arachidonic acid from phospholipids. Blocked by glucocorticoids. |
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In this disease, there is a biphasic increase and decrease of CD1a+ Langerhans DCs in the epidermis.
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Norwegian Scabies |
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What is metachromasia, and which immune cells are defined by it?
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Color change different from stain. Mast cells and basophils |
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What is the only X–linked complement component deficiency?
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Properdin deficiency
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What is the name for mountain cedar allergen?
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Jun a ___ (Juniperus ashei)
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Most common allergen induced immediate hypersensitivity in the Mediterrean?
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Par j 1
(Parietaria judaica, sticky weed) |
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Is there cross–reactivity between cockroaches?
Which cockroach allergen is related to animal danders? |
Yes, but only between Bla g 1 and Per a 1
Bla g 4 (lipocalin–like protein) |
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Allergen common btw cockroach, mites and shrimp?
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Tropomyosin:
Per a 7 (cockroach) Pen a 1 (shrimp) Der f/p 10 (DM) |
perpender |
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What is the most common cause of HP in Mexico?
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Pigeon breeders disease
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EGPA (Churg–Strauss): 1. stands for? 2. six ACR criteria for diagnosis? 3. definite diagnosis? |
1. Eosinophilic Granulomatosis with PolyAngitis 2. Eos>1500, Extravas eos Neuropathy, Paranasal sinus abnormalities, Pulmonary (migratory) infiltrates, Asthma 3. DX: eosinophilic vasculitis on lung biopsy |
Think ENPA EE/N/PP/A |
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Neutrophils
1. Growth factors 2. cytokine that stimulate PMN? 3. cell products & unique protein |
GM–CSF, G–CSF
IL-8 (CXCL8) LTB4 cathepsin G (unique to neutrophils) |
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Monocytes/Macrophage
1. Growth factor? 2. maturation site? 3. cell products? |
1. GM–CSF
2. Mature in BM, but diff into macrophages and DC in tissues 3. LTB4, LTC4 |
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Eosinophils: 1. Growth factors? 2. maturation site? |
1. IL–5, IL–3, GM–CSF 2. bone marrow |
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Cell products of eosinophils in:
1. Primary 2. Secondary granules 3. Lipid bodies (Which can selectively release products)? |
1. Charcot leyden cystal (lysophospholipase)
2. Cationic proteins (MBP, ECP, EDN, EPO), Enzymes (lysozyme, elastase, cathepsin), Cytokines 3. COX, LPO, LT Secondary can selectively release granules. |
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Basophils: 1. Growth factor? & receptor? 2. Maturation site 3. cell products? |
1. IL–3 (rec is CD123 denim, also found on plasmacytoid DC) IL–4, IL–5, GM–CSF, nerve growth factor (NGF) 2. bone marrow 3. histamine, chondroitin A, LTC4 |
Ill Mark received by CD denim on basophils and plasmacytoid DCs
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Mast cells: 1. Growth factor 2. Maturation site & granule types MCt vs MCtc |
1. Stem Cell Factor (aka c–kit ligand) 2. MCt: gut, lung (scroll-like granules) MCtc: gut, skin/eyes, vessels, synovium (lattice/whorled granules). Also has C5a Receptor (CD88). Recall, C5a is a powerful chemotactic factor for neutrophils.
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HCL TPH + CCC |
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Mast cell
1. Pre-formed mediators? 2. Other Cell products MCt vs MCtc |
1. Pre-formed:
- histamine, - proteases (tryptase, c/c/c) - proteoglycans (hep, chon) - TNF-alpha 2. both MCt/MCtc: (histamine, chondroitin A/E, LTC4), tryptase, PGD2, heparin, IL-5 MCtc: chymase, carboxypeptidase, cathepsin G |
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agent responsible for Enzyme/Detergent Worker’s Lung
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Bacillus subtilis enzymes (HMW, IgE-mediated)
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This is the most common parasite causing Loffler’s syndrome
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Ascaris lumbricoides
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Solenopsis invicta and Solenopsis richteri do NOT share which antigen? Their venom contain 95% what? |
Sol i 4 is unique. piperidine alkaloids |
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genus? names of related genuses? Most important venom antigen? US allergen standardized to? |
DolichoVespula ( hornet, horns blow air) Vespula (jackets) lay on the ground (ground nests) Polistes (paper wasp) Antigen 5 (ves v 5) is the major allergen, but extracts are standardized to hyaluronidase (ves v 2, api m 2, pol a 2) |
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Ataxia–Telangiectasia:
1. first clinical manifestation? 2. characteristic labs & Ig? 3. underlying problem |
1. Ataxia (walking then prog clumsy)
2. Elevated AFP, CEA, IgM (low IgA & IgE) 3. ATM is PI3 kinase, responsible for DNA repair |
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7 month old girl got pneumonoccal Meningitis despite her PCV-13 vaccine. Most likely has deficiency in: TRIF, MyD88, NEMO, or UNC93b??? |
Answer is MyD88 NEMO is Xlinked. TRIF & UNC93b has HSV encephalitis. |
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DDX for chronic mucocutaneous candidiasis? |
DOCK8 HIES AIRE MHC II defects STAT1 gain of function STAT3 / TH17 / IL-17 / Dectin/CARD9 |
yeasty DAMSSdc |
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MSMD (Mendelian Susc to Mycobactium Disease) 1. kind of infections 2. mutations involved |
1. MLVSH mycobacterium (disseminated), salmonella, listeria histoplasma/cocci, viruses (herpes family, RSV)
MC: IL-12Rb-1 deficiency, osteomyelitis: IFN deficiency E. Asian women: IFN auto ab STAT1 gof/defic, Tyk 2 HIES, GATA2 MonoMac, low NK bright XL-NEMO Recall, IL-12/23 blocker is ustekinumab. |
mycobacterium STIIIG X
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Abscesses and post-pneumonia formation of pneumatoceles leading to Aspergillus, Primary teeth retention, Classic facies > 16 yo. Other: eczema, mucocutaneous candidiasis (not STAT1 gof or AIRE). Dx? |
Job/STAT3 deficiency Post-PNA pneumatocele also in myeloperoxidase deficiency |
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How is hypereosinophilia defined? HES? |
Peripheral eo >1500/mcl on 2 occasions, OR tissue eo + marked peripheral eos. (% is NOT useful) HES is when there is end-organ damage 2/2 eosinophilia. |
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Hypereosinophilia + interstitial nephritis: which meds most likely culprit? |
cephalosporins and PCNs recall, cefaclor serum sick kids recall, PIE lung = NSAIDs, nitro |
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Infectious causes of eosinophilia? |
1. Parasites 2. Fungus 3. Insect (scabies sensitization) 4. protozoa: only Isospora belli & Sarcocystis |
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What is Gleich syndrome? |
Episodic Angioedema with episodic Eosinophilia (EAE) |
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DDX (2) for T-B-NK- SCID? |
ADA deficiency (bone anomalies) & RD (Reticular Dysgenesis) PNP is also T-B- but can be NK+/- |
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DDX (6) for T-B- (NK ok) SCID? |
1. RAG1&2 (NO radiation sens!) 2. recombinase repair issues: - Artemis, Cernunnos, Ligase 4 (radiation sensitive) 3. Nijmegen breakage 4. Omenn!!! 5. PNP, which can also be NK+/- |
Think VDJ defects. |
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DDX (2) for T-NK- (B ok) SCID? |
XL: Common gamma chain (CD 132 demon) AR: JAK3 deficiency Recall: CD131 timid is common beta chain |
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Underlying problem in Chronic Granulomatous Disease (CGD)? Inheritance? Describe DHR lab sx & Infections? Why? |
Neutrophils can't do NADPH-oxidative burst. 65% XL, but rest are AR DHR: peak don't move (XL dz), 2 sharp peaks (XL carrier), small hill (AR) Angry bloody diarrhea like IL-10 & NEMO. Catalase (+) breaks down bacteria H202 so CGD can't borrow. N BBASSS cfg - Nocardia - Burkholderia cepacia - BCG, - Aspergillus - Staph aureus - Serratia marcenans - Salmonella Other: - Chromobacterium - Francisella - Granulibacter |
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Describe MHC Class 1 vs 2 presentation & cross-presentation. |
MHC 1 (HLA ABC): intracell protein --> TAP to MHC 1 inside ER and export by Golgi/phagosome. MHC 2 (HLA DQ,DR,DS): extracell phagocytosis --> merge with MHC2 and export by Golgi/phagosome Cross: endosome fuse with MHC1 on Golgi/phagosome; important for extracellular viruses and tumors |
TAP "in" 1ABC (HLA ABC) "ex" 2Dqrs (HLA Dq,Dr,Ds) Cross: "ex" 1 |
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DDX for HIES (hyperIgE syndrome) |
AD: Job/Stat3 deficiency AR: DOCK8, Tyk2, Wiscott-Aldrich, Omenn |
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Name 5 syndromic immunodeficiencies |
Job STAT3 deficiency Wiscott-Aldrich Ataxia Telangiectasia DiGeorge (+/- immunodefic) STAT5b (IPEX-like with Treg issues) |
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CD defects in LAD? Sx and blood group? Why infections? |
LAD1: CD18 (pairs with CD11 to form integrins). Think chronic necrotic lesions mos/yrs (recall D-ADA2 also has necrotic lesions). LAD2: FUCT cannot fucosylate CD15 (sialyl lewis x)...has Bombay blood group & developmental abnormalities.
Neutrophils problem! PMN can't extravasculize from blood vessels. |
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Immunodeficiency with dwarfism?
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STAT5b (IPEX-like with Treg issues)
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Causes of agammaglobulinemia? |
1. XL BTK (phos PLCγ2) 2. μ (IgM) Heavy chain 3. CD79 (Igα, Igβ) 4. CD159 (Surrogate light chain: V pre-B, lambda 5), 5. BLNK (SLP–65) deficiency 6. Good thymoma w/ eosinopenia 7. Other: LRRC8, PIK3r1, TCF3, monosomy 7, trisomy 8) |
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Infections with antibody/humoral deficiency |
1. sinopulmonary inf by encapsulated bacteria 2. atypical: mycoplasma, ureaplasma 3. GI tract bacteria/virus/protozoa (Giardia) |
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How to dx CVID? |
1. <2 SD for IgG and (IgA or IgM) 2. Absent isohemaglutinins 3. "poor" vaccine response to protein & polysaccharide 4. exclude other causes |
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DDX for CVID hypogam? |
ICOS, TACI, BAFF (TNFRSF13c), CD19/20/21, CD81(TAPA-1), Other: TWEAK, PIK3CD (PI3 kinase), PIK3R1, LRBA, NFkB2, PRKCD, KMT2D (Kabuki), Good thymoma w/ eosinopenia |
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other DDx for hypogam besides CVID (i.e. selective Ig deficiency)? |
WHIM PLAID Medications, infection, protein loss, BM failure / cancer |
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Cutoff for selective IgA deficiency? Which meds may lead to permanent deficiency as well? |
<7 mg/dl (in 4 year old or older) Anti-epileptics |
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For lab lymph proliferation, how many days for mitogen vs. antigen? |
mitogen: 3 days antigen: 6 days |
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Clinical lab significance of CD107a? |
look for this intracellular marker to be expressed extracellularly as a marker of CYTOTOXICITY! |
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BTK is expressed inside which cells? |
B cells, monocytes, platelets |
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Define lymphopenia generally? About how much should be T cells, B cells, and NK cells? |
ALC < 1000/m3 (adults) ALC < 3000/m3 (infants) T cells is 65-76% of ALC NK: 10-15% B: 10-15% |
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Prevnar vs Pneumovax |
Prevnar 13 is conjugated with peptide. Pneumovax 23 has just the carbohydrate capsule. |
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Which tryptase is released from mast cells constitutively? VS during degranulation? |
constitutive: Pro-alpha and pro-beta monomers tryptase degranulation: Mature tryptase (beta tetramers) Total tryptase = monomers + beta tetramer |
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-mab nomenclature: target? + source? |
target: -li- or -lim- (immune) -tu- or -tum- (tumor) source: -amab (rat) -emab (hemster) -imab (primate) -omab (mouse) -umab (human) -zumab (humanized) -ximab (chimera) |
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IVIG: - target trough? - when to check trough? - side effects on? |
>500-750 mg/dl to keep serious infections <2.5 yr; (Higher if bronchiectasis!) after 2-3 infusions to get "accurate" level on: headache, off: fatigue before next infusion |
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(AD) PLAID: Stands for? 1. Underlying prob? 2. Clinical sx? 3. Tx? |
PLc-gamma-2 Antibody defic + Immune Dysregulation 1. PLC-gamma 2 mutation, causing diminished signalling at cold temp. (recall, PIP2->DAG/IP3 2. cold urticaria with evaporative cooling, antibody deficiency, autoimmunity 3. high dose antihistamines +/- IVIG replacement |
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(AD) CAPS: Stands for? 1. Underlying prob? 2. Clinical sx with each type? 3. Tx? |
CIAS1-Associated Periodic Syndrome 1. CIAS1/NLRP3 (AD) activating mutation of cryopyrin 2. All have Fever + urticaria-like (Neutrophilic, not Eos) - FCAS (AD): sx with generalized cold exposure - MW: limb pain, hearing, systemic amyloidosis - NOMID/CINCA: arthritis, meningitis, epiphyseal overgrowth 3. IL-1 blocker |
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(AD) PAPA: Stands for? 1. Underlying prob? 2. Clinical sx? 3. Tx? |
Pyogenic Arthritis + Pyoderma Gangrenosa + Acne 1. PSTPIP1 (AD), aka CD2 bind protein 1, which (+) pyrin 2. (see above) terrible 3. no good tx. ???TNF or IL-1 blockers, steroids |
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FMF: Stands for? 1. Mutation? Underlying prob? 2. Clinical sx? 3. Tx? |
Familial Mediterranean Fever - MEFV (AR), codes for pyrin - 1-3 days fever, peritonitis (sterile), +/- pleurisy, arthritis/algia, erypsipelas, rare amyloidosis - tx: colchicine (blocks pyrin activation), IL-1 rec inhibitor anakinra |
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PFAPA: Stands for? 1. Underlying prob? 2. Clinical sx? 3. Tx? |
Periodic Fever with Aphthous ulcers, Pharyngitis, and Adenitis - ?genetic basis - last 3-6 days, very clockwork - tx options: outgrow, T&A, steroids (though will make sx more frequent), anakinra |
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HIDS: Stands for? 1. Underlying prob? 2. Clinical sx? Trigger? 3. Population 4. Tx?
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HyperIgD with Periodic Fever Syndrome 2. MVK (AR) mutation, decrease geranylP somehow lead to increased IL-1 and IgD (not sig) 2. 3-7 days F, abd pain, arthritis/algia, cervical LAD, aphthous ulcers. Vaccines can trigger. 3. Northern Europeans 4. ? IL-1 rec inhibitor anakinra in more severe cases
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(AD) TRAPS: Stands for? 1. Underlying prob? 2. Clinical sx? 3. Tx? |
TNF-Rec Assoc Periodic Syndrome 1. TNFRSF1A gene (AD!) - cysteine misfold of TNF rec 2. weeks of fever, serositis, arthritis, migratory rash, periorbital edema (also in CANDLE), renal amyloidosis 3. NSAIDs, corticosteroids, etanercept (but note TNF-mab may worsen!), IL-1 rec inhibitor anakinra
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Think sx are TRAPPED for weeks! |
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DIRA: Stands for? 1. Underlying prob? 2. Clinical sx? 3. Tx? |
Defic of IL-1 Rec Antagonist (anakinra) 1. basically anakinra deficiency 2. looks like NOMID with BONE issues (osteomyelitis, periosteitis), skin pustulosis 3. IL-1 rec inhibitor anakinra |
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CANDLE: Stands for? 1. Underlying prob? 2. Clinical sx? 3. Tx? |
Chronic Atypical Neutrophilic Dermatosis with Lipodystrophy and Elevated temp 1. inactivating mutation of proteosome, leading to IFN type 1 production! 2. violet periorbital edema (also in TRAPS), lipodystrophy, panniculitis, FTT, synovitis 3. ?JAK kinase inhibitor (?tofacitunib) Recall, Bortezomib also (-) proteosome |
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DADA2: Stands for? 1. mutation? of course ADA2 def 2. Clinical sx? 3. Tx? |
Deficiency of ADA2 1. CECR1 (AR) mutation, leading to ADA2 deficiency 2. fevers, lacunar strokes!, livedo rash, necrotic lesions (recall also in LAD1), polyarthritis nodosa, mild (usu IgM) deficiency 3. TNF blockers |
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Decreased immune system is a/w of which vitamins and minerals? |
Vit A (NK), Vit C, iron, zinc, selenium |
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Invariant chain: Loaded on which MHC _?_ in which cellular compartment |
MCH II in the ER (endoplasmic reticulum) |
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NKT cells are best described as: a. MHC I restricted b. CD1d restricted c. Very small lymphocytes |
b. NKT cells are large lymphocytes that recognized both CD1d and MHC1 (KIR rec). However, NKT are CD1d restricted and MHC 1 nonrestricted. CD1 present lipids. |
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Gut ILC perform which? a. secrete mucus b. repress PMN phagocytosis c. recruit macrophages d. induce defensing |
d. GUT ILC helps maintain gut integrity by inducing enterocyte secretion of mucus and antimicrobial peptides. |
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Which of the following is on all B cells but disappear when becoming plasma cells? a. IgD b. IgM c. CD19 d. CD20 e. CD21 |
answer: c. CD19 |
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Which joins first in forming Ig? a. DH-->JH b. VH-->DH c. Vk -->Jk d. Vl --> Jl |
answer: a. DH-->JH (DJ of Heavy chain) |
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Describe Pro-B cell VS Pre-B cell VS immature B-cell? |
Pro-B: has CD19 and CD10 Pre-B: gains Ig(mu) (no lt chain) Immature: Ig(mu)+light chain = IgM |
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Which process unique to B cells allows them to enhance the specificity and affinity of their antigen receptors? a. Allelic inclusion b. class switching b. receptor editing d. somatic hypermutation e. telomerase activation |
answer: d. somatic hypermutation (AID/UNG, in dark zone of germinal center) allelic inclusion: only Ig(mu) for 1 allele (mom or dad) can be expressed |
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Which of the following is NOT involved in forming IgM? a. AID b. kappa light chain c. RAG 1/2 d. surrogate light chain e. TdT |
answer: a. AID leads to somatic hypermutation, which helps the affinity maturation (V arm) as well as class switching (H arm) in dark zone of germinal center |
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Causes of hyperIgM? Inheritance? Which causes opportunistic infections (i.e. PCP)? |
Opportunistic infections (think T-cell licensing): XL: CD40L (CD154) deficiency
AR: CD40, No opportunistic infections: AR: AID, UNG deficiency Other: Schnitzler's urticaria (later in life), Ataxia Telangiectasia, Waldenstrom's Macroglob
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Functions of AID & UNG? Do they function in the bone marrow? |
Mutations in: AID deaminates C (Cytosine) to U (uracil). UNG removes the U, leaving empty spot to add any nucleotide! No, they happen in the periphery in dark zone of germinal center, helping with B cell class switch and affinity maturation. |
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What is "junctional diversity" and which protein is involved? |
Junctional diversity: DNA variability due to TdT (terminal deoxynuleotidyl transferase) randomly adding nucleotides during the V(D)J recombination. |
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What does "alternative splicing" allow for B cells? |
Allows for IgM to be membrane-bound or soluble. |
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How does Bortezomib work? Which cells does it preferentially affect? Side effect? |
Blocks proteosome, so cells can destroy bad proteins and gets choked up, undergoing autophagy and apoptosis. (Recall CANDLE = proteosome issue) Affects plasma cells. Neuropathy (30%), low neutrophils/platelets, Shingles herpes zoster |
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Immunodeficiency with enteropathy/ watery diarrhea? Angry inflammatory bowel and bloody diarrhea? |
watery: CVID, IPEX, CTLA-4 (CD 152 talon) angry: IL-10R deficiency, CGD, NEMO |
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Pemphigus vulgaris: ethnic group? drugs? describe. |
Jews, Mediterranean -thiol (captopril, penicillamine) Vulgar language (oral mouth blisters) They are also despos (DesPo - DesMo - Antibodies against desmoglein 1[skin] or desmoglein 3[muc memb]) Vulgar people are shallow and superficial (Superficial flaccid blisters above the basal layer, and will rupture easily. (Nikolsky's sign positive) They are trapped in their own net. (Net-like IgG on immunoflorescence) And die. (Patients die without treatment, poor prognosis) And have tombstones on their graves. (Tombstone appearance of basal layer) |
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Bullous pemphigoid, main antigen? |
BP Ag2 (causes blisters)
BP Ag1 |
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what is entopy? |
local production of IgE |
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are nasal steroids helpful in pregnancy-induced rhinitis? |
no |
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What causes ANTERIOR vs POSTERIOR subcapsular cataracts? |
anterior: AKC: atopic keratoconj posterior: corticosteroids |
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Which eye disease cause upper eyelid papillae? |
VKC (teens, photophobia, perilimbal dots) larger tarsal hypertrophy than GPC (contact lenses) |
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sight-threatening eye conditions and differences? other? |
VKC: vernal keratoconj --> boys, cobblestoning papillae, Horner-Trantas peri-limbal dots, severe photophobia, upper lid papille AKC: atopic keratoconj --> teens to adults, itching, anterior cataracts, lower lid papillae, a/w atopic dermatitis acute glaucoma scleritis iritis uveitis Herpes simplex keratitis |
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Contact lenses can cause which conjunctivitis? |
GPC: giant papillary conj |
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In asthma, which IL causes increased mucus production? |
IL-9, which also helps IL-4 mediated IgE class switching. |
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What is in asthmatic sputum? |
a. Curshmann's spirals (excess mucus production) b. Creola bodies (clumps of epithelial cells) c. Charcot-Leyden crystals of eosinophilic proteins |
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Sensitization to which mold is a/w persistent asthma? |
sensitization to Alternaria |
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What does the Asthma Predictive Index API predict? Criteria? |
Children < 3y/o with 4+ wheezing episodes in the past year, is likely to have persistent wheezing if: One of: - Parent asthma - physician diagnosed AD - aeroallergen sensitzation AND 2 of: - food sensitization - >4% eosinophils - wheezing apart from colds |
API 1+2
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NHLBI 2007 cutoffs for persistent (mild vs. severe) asthma for child 4 y/o vs 5 y/o in regards to monthly nighttime symptoms? |
Mild persistent night sx: 4 y/o: 1/mo 5 y/o, 3/mo Severe persistent night sx: 4 y/o: 1/wk 5 y/o: 1/night |
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NHLBI, for 5 y/o, what is difference for monthly nighttime symptoms for assess SEVERITY vs CONTROL? |
For initial severity, >3/month is mild persistent, often nightly is severe persistent. (vs 4 y/o, where >1/month is persistent) For control, 2/month is uncontrolled. (2/week is severe) |
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ACT score for uncontrolled vs severely uncontrolled? |
ACT 16-19 is uncontrolled, 15 or less is severely uncontrolled |
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Of the 6 steps for asthma treatment: 1. which step is low dose vs high dose ICS vs oral steroids? 2. what additional tx can you consider for step 2 in kids 5 year and older? |
1. Low dose ICS (step 2), high dose (step 5), oral steroids (step 6) 2. In kids 5 and older, you can consider SCIT or theophylline. |
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What is Frey's syndrome? aka? |
aka auriculotemporal syndrome face flush/sweat with flamey (spicy), flavored food |
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Egg is in which: 1. vaccines? 2. sedative? |
Yellow fever vaccine Rabies vaccine (influenza) Propofol |
Yellow Rabies Egg |
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Oral Allergy syndrome is a/w: 1. which peanut component? 2. which soy component? (tree?) |
peanut ara h 8 gly m 3 & 4 (birch pollen) |
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which soy component is a/w asthma? |
gly m 1 & 2 |
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What is another name for milk protein intolerance in babies with bloody stools? |
FPIP (Food Protein Induced Proctocolitis) |
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What is Heiner's hypersensitivity? |
milk hypersensitivity in kids, causing PNAs, IDA, FTT |
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Which foods are a/w exercise-induced anaphylaxis? |
Celery Wheat (omega 5 gliadin) Shellfish / Fish Fruit Milk |
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Which foods has oral allergy to this pollen?
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Ragweed:
Bananas & Gourd family (honeydew, watermelon, cantaloupe, zucchini, and cucumber) |
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Mugwort has oral allergy to which foods |
celery & spices (like birch) broccoli family garlic/onion bell/black pepper |
think celery-mugwort-spice syndrome |
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Birch pollen (looks like tri-nipples) is related to which foods? |
Birch (betula) celery and spices (like mugwort) fruits soy (gly m 3/4), PN (ara h 8) hazelnut |
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Which cytokines / receptors are a/w hypotension during anaphylaxis? |
Tryptase Histamine C3a IL-6 TNF receptor 1 |
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What may serum Total:Mature tryptase ratio >20 vs <10 suggest? |
>20 means Systemic Mastocytosis <10 other causes (i.e. acute anaphylaxis) Note: beta tryptase not elevated in food-induced anaphylaxis (but may see 1.2x +2). |
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What contaminant in heparin may cause an anaphylactic picture without skin symptoms? |
chondroitin sulfate |
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Specific latex allergen a/w: 1. spina bifida 2. health care workers 3. foods |
1. hev b 1,3 2. hev b 6,5,7 3. hev b 2: BO bell pepper, olives hev b 6: BAC banana, avocado, chestnut hev b 5: K kiwi hev b 7: PT potato, tomato hev b 13: P potato |
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Venom IT is indicated for who? When to continue VIT forever? |
Anyone with associated anaphylaxis >16 y/o with systemic cutaneous (hives or angioedema) SEVERE reaction, systemic rxn on VIT, honeybee allergy ?if skin or sIgE don't decrease |
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Schnitzler syndrome symptoms? when in life? labs? tx? |
autoinflammatory dz presents later in life with: - non-pruritc neutrophilic urticaria - periodic fevers - arthraglia a/w elevated IgM! tx with anti-IL-1 (anakinra) |
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What is emphysema, types, and causes? |
Emphysema is loss of elastic tissue in terminal airspaces. Centrilobular (proximal acinar): upper lobes, cigarettes Panlobular (panacinar): lower lobs, A1AT deficiency Paraseptal (distal acinar): periphery, spontaneous PTX in young adult |
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HAT vs HDACs |
HAT (Histone AcetylTransferase) is INFLAMMATORY by unwinding DNA to express NFkB and AP-1. HDACs (Histone DeACetylases) is recruited by Corticosteroids and does the opposite, hence anti-inflamm. |
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What is the difference between phototoxic and photoallergic? Name some causative agents. |
Toxic (no prior sens): foods (lime, celery, parsnip), tar, psoralens, furocoumarins, tetracyclines,sulfonamines, quinine (parasite) amiodarone,
Allergic (requires prior sens): chlorhexidine, PABA, thiourea, sulfonylureas (T2DM) dapsone, quinidine(rhythm),
Both: NSAIDs diuretics |
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Test for nickel contact dermatitis? |
DiMethylGlyoxime test (pink = positive) |
Nicole goes to DMG to test Nickel. Pink = passing positive |
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Contact derm Where are chromates found? |
leather and wet cement |
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Contact derm Where is cobalt found? |
in dental implants and artificial joints, also engines/rockets recall: acrylates in dental & adhesive for occupational asthma |
Kobe Bryant has cobalt teeth and rocket engines. |
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Contact derm What is myroxylon pereirae? what is it found in? |
Balsam of Peru perfumes cinnamon and vanilla |
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most common cause of hand eczema in flower workers? |
AlstroEmeria (Peruvian lily) |
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Sensitizing substances for most plants are mostly found in which fractions? |
oily oleoresin, but some in water-soluble glucosides. |
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Preservatives are classified into which 2 main groups? Name some examples of the releasers. |
Formaldehyde releasers: Quaternium-15, BNP (bromo-nitro-propane) DMDM hydantoin, -Linidinyl urea, QLHB Non-donors: benzalkonium, methylisothiazolinone, para-ben, phenoxy-ethanol, PCMX/PCMC, thimerosol |
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What contact dermatitis agents are in hair products? |
cocamidopropyl betaine glycerol thiolycolate paraPhenyleneDiamine - think hair dressers & henna tattoo (recall persulfate for occupational asthma) |
Hair: cocoa butter, glycerin sugar, Hair/henna: parafin wax purposeful hair bleach |
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What contact derm agents are in nail products? |
Acrylates (i.e. ethylacrylate) |
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What is the main substance causing Toxidendron dermatitis? There is cross-reactive to which fruit peels? |
UruShiol mango peels |
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Name 2 physical (non-chemical) sunblocking agents |
Titanium dioxide, zinc oxide |
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Which steroids are use to patch test? Name the 4 classes of steroids. |
A: hydrocort (test tixocortol) B: triam (test budesonide) C: betametasone D: hydrocort-17-butyrate |
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What contact derm agent is common in topical creams? |
EthyleneDiamine |
Think Ethyl's skin cream Paraphen for her hair |
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What rash can sometimes precede HAE attacks? In what other conditions can you see it? |
erythema marginatum, also in RA |
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HAE treatments: 1. acute PRN? 2. prophylaxis for life? 3. before procedures? 4. for pregnancy? |
1. C1 (Berinert, Ruconest) ecallantide, icatibant 2. Cinryze, androgens, FFP (chronic and forever) 3. Berinert, androgens (before anesthesia) 4. plasma-derived C1 inh (Cinryze, Berinert) |
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ddx for T- SCID? |
CD3 (e,d,g,e) CD45 CD25 nail (IL-2Ra), also IPEX-like CD127 tunic (IL-7Ra, also rec for TSLP) |
Think TCR & T cells! |
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ddx for Bare Lymph Syndrome, CD8 vs CD4 lymphopenia? |
CD8: deficiency of ZAP70, TAP, tapasin, CD4: mutations (MHC2, RFX5, FRXAP, FRXANK), UNG119 & LCk deficiency, HIV inf, XLP |
8 zap tap tap 4 bare HIV lyck their X-lip |
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XLP-1 mutation? which encodes? function of that protein? |
XLP-1: SH2-D1a mutation, encoding SAP SAP links SLAM (with its ITSM) to Fyn/CD3 SAP = SLAM-Associated Protein SLAM = Signaling lymph activation molecule |
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Immunodeficiency with severe IBD? |
deficiency of IL-10 recall, severe diarrhea also in CGD & NEMO watery: CVID, IPEX, CTLA4 (CD 152 talon) |
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Name some live vaccines |
Adenovirus Nasal Influenza, MMR, Varicella/Zoster, Yellow Fever, oral Polio, Rotavirus, BCG, Typhoid, Vaccinia (smallpox), |
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What virus is contraindicated with intussussception? |
Rotavirus |
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Persons with isolated B cell immunodeficiency may receive which vaccine? |
varicella |
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Gelatin is in which vaccines |
Hep B, influenza, MMRV, Varicella/HZ, Yellow Fever |
Jello HIMVY |
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Neomycin is in which vaccines |
MMR, varicella/VZ, Polio |
Neo Polo MV |
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Egg allergy & vaccines: guidelines? |
If hives, PCP give vaccine, watch 30 minute If systemic rxn, give Flublock (RIV3) if adult, otherwise allergist give and wait 30 min. |
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Name the IL-12/IL-23 blocker that can be used for psoriasis |
ustekinumab watch out for mycobacterium inf recall, IL-12 deficiency = MSMD |
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PDE-4 blocker for psoriasis? PDE-4 blocker for COPD? SE Benefits |
psoriasis: Apremilast COPD: Roflumilast, GI side effects (n, v, wt loss) anti-inflammatory Recall, PDE-5 inh is Viagra |
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IL-17 blocker |
secukinumab |
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Hemidesmosomal antigens in Bullous Pemphigoid? |
Autoantigens against: BP Ag1 BP Ag2 (BP 180) Think elderly, rigid deep blisters (negative Nikolsky), hemidesmosomes on basement membrane |
Think pemphig OLD |
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symptoms in pemphigus folicaceous antigen |
crusted scaly skin (subcorneal acantholysis) ab against Desmoglein1 on skin (vs 1 or 3 in pemph vulgaris) |
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IgA skin deposition: DH vs. Linear IgA Dermatosis. Causative agents? Treatment? |
DH: gluten Linear IgA Derm: vancomycin!! & other drugs TX: dapsone (since neutrophil mediated), topical steroids. Also, gluten-free diet with DH. |
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Example of dominant negative dz |
STAT3 JOB |
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Example of haploinsufficiency |
GATA-2 haploinsufficiency (recall, low NK bright, mono/mac) CTLA-4 haploinsufficiency (CD 152 talon) |
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Basophil Activation Test (BAT) lead to surface expression of which markers? |
CD203c (usu. on surface at low levels) CD63 (coats histamine secretory granules) |
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What is the receptor for Stem Cell Factor for mast cell activation? Most common activating mutation? |
CD117 (c-kit rec) D816V mutation |
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The common progenitor for MC, basophils, and eosinophils has which CD marker? |
CD34 |
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which receptor on Mast cells binds vancomycin, opiods, and icatibant? |
MRG-X2 ("murg X2") |
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Receptor for C5a CD number? Expressed on which cells? |
CD88, on MCtc (mast cells) & basophils Recall, C5a is a powerful chemotactic factor for neutrophils. |
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Criteria for systemic Mastocytosis? (Major & minor) |
1 M + 1 m OR 3 m Major: dense infil >15MC/aggre minor: - >25% spindle shaped - D816V - CD2 or CD25 nail (IL2Ra) on MC - tryptase > 20ng/ml |
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3 criteria for MCAS (mast cell activation syndrome)? |
1. classic sx in 2 organ system 2. increase mast cell marker (tryptase, urine metabolites) with sx 3. response to anti-mediator therapy |
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which ANCA (cytoplasmic proteins in neutrophils) are a/w which disease? Name examples of ANCAs. |
c-ANCA (PR-3): GPA, EGPA (less common), (ANCA by indirect immunofluorescent, confirmed by PR-3 by ELISA) p-ANCA (MPO): EGPA (more common), Microscopic PA |
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Cryoglobulinemia vasculitis in which diseases? lab findings |
infection (esp Hep C!!!) neoplasms connective tissue dz (+) cyroglobulin, (+) RF, (+) hep C, low complements |
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vasculitic urticaria vs. regular urticaria? |
painful, last >24 hours, less pruritic, central red, leave hyperpigment +/- systemic features |
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What is Felty's syndrome? |
RA splenomegaly neutropenia |
Felty's Rhematoid Arthritis triad |
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Name the CTLA-4 (CD152 talon) blocker? |
abatacept |
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Name the IL-6 Rec blocker (used in RA) |
Tocilizumab |
6 toucans liz zoo |
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Name a JAK inhibitor |
tofacitunib |
jack tofu nibbles |
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Highly specific auto-ab for SLE Lupus? |
anti-DNA, anti-Sm |
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Auto-ab in Neonatal SLE, cutaneous SLE & Sjogren syndrome |
Anti-Ro(SSA) and anti-La (SSB) Recall, T cell infiltration in Sjogren biopsies. |
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Auto-ab in Systemic vs Cutaneous Drug-induced SLE |
systemic: anti-histone cutaneous: anti-Ro/La |
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Main tx in Rheumatoid Arthritis vs SLE? |
RA: methotrexate or other DMARDs +/- biologics SLE: hydroxychloroquine |
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Auto-ab in scleroderma (aka systemic sclerosis), including CREST) |
Anti-centromere Anti-toposiomerase (SCL70) Anti-RNA polymerase 3 Recall, use ACE-I instead of steroids! |
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Which Rheum dz do you avoid corticosteroids due to SE of renal crisis? TX instead? |
scleroderma (systemic sclerosis), use ACE-inhibitors instead! |
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HIV diagnosis, which antibody & antigen test(s) are good for: 1. Screening Rule OUT? 2. Confirmatory Rule IN? |
Rule OUT: 1. ab: ELISA, Rapid HIV, Western 2. antigen: p24 (4th gen screen) Rule IN: 1. ab: Western blot or Indirect IF 2. antigen: PCR HIV DNA or RNA |
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Which HIV protease inhibitor Med can increased inhaled or nasal CS to systemic levels?! |
Ritonavir Ritonavir puts steroids Right On INTO your body! |
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HIV prophy organisms & meds? |
PJP & Toxo: Bactrim Histo: itraconazole Cocci: fluconazole MAC: macrolide |
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In EOE, which cytokines are involved? |
IL-5 IL-13 recruit eotaxin-3 (CCL26) |
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how much DM is recommended in SCIT? Airborne? |
7 micrograms per injection No, quickly settles (large 10-35 micron) |
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Most common cat allergen? Airborne? |
Fel d 1 (homologous with uteroglobulin) minor: Fed d 2-4 Yes, <10 micron so airborne for hours |
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Most common mouse allergen |
Mus m 1 (urinary protein) |
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Primary, sec, and tert prevention of allergic dz |
Primary: prevent sensitization Secondary: prevent allergic dz Tertiary: prevent dz severity |
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Level of DM to induce sensitization in most studies, VS nonallergic subjects? |
Most: 2-10 mcg/ gm air nonallergic: 20 mcg/g |
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How long after cat removal to reduce allergen levels to background level of <10 mcg/g? |
10-20 weeks (3-4 months) |
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For HES (Hypereosinophilic Syndrome), 1. MC genetic mutation for myeloproliferative variant? tx? 2. tx for non-myeloprol? |
1. 4q12 del (FIP1L1-PDGFRA fusion), tx is imatinib TK inhibitor 2. glucocorticoids (but r/o out Strongyloides first) |
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Where can imatinib bind, and give examples? |
1. abl (i.e BCR-abl philadelphia chromsome) 2. c-kit/CD117 (non-D816V) 3. PDGR-r (i.e. FIP1L1-PDGRa) |
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Two-tier vs single-step testing for Lyme/borrelia? |
Two: ELISA --> Western Single: ELISA measuring IgG for Variable major protein-like sequence-expressed (VIsE) 6th invariant region (C6) |
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When must I use penicillin desens for syphyllis/Treponema? |
PCN-allergic patients in: - neurosyphyllis - pregnant women - congenital syphyllis |
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Adult pneumonia (CAP) first vs second line treatment? |
doxycycline or macrolide (azithromycin, clarithromycin) 2nd line: fluoroquinolone OR (1st line + beta lactam) |
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collarette flakes on eyelids are c/w? |
seborrhea of the eye |
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Name 6 eye drops meds that are dual anti-histamine / mast-cell stabilizers |
OAK ABE olopatadine alcaftadine ketotifen azelastine bepotastine epinastine |
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Differentiate btw the Type 4 hypersensitivity in regards to: - reactions / sx - cell types - cytokines |
4A: contact derm = macrophages, TH1 = IFN-g 4B: DRESS, maculopap = eos, TH2 = IL-4, IL-5 4C: SJS/TENS, drug hep = CD4, CD8 = CTL, perforin, granzyme 4D: Pustular (AGEP) = PMNs, T-cell = IL-8 |
A. Contact your date. Get your mac on and interfere G. B. Get DRESSed maculopapular, EzPHIL brings the IL4,5 bling. C. SJS at 10s, where you do drugs and get CD8 to shred. D. Pus oozing at the afterparty with neutrophils cleaning up on Aisle (IL) 8. |
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Describe the 3 models of Drug Allergy mechanisms of action.. |
1. Hapten (med) binds to self-proteins to engage TCR. 2. P-I. Pharm (med) engaged TCR directly. 3. APR. Med alters peptide repetoire (binding specficity), creating neoepitopes that can engage TCR. |
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Drug allergy: dapsone HLA, ethnic? reaction? |
HLA B13:01 13 Asians "dapsone hypersens syn" |
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Drug allergy: carbamazepine 1. HLAs? & Ethnic groups? 2. Drug reaction? |
HLA B15:02 (15 Han Chinese) HLA A31:01 (31 A Europeans) Stevens Johnson (type 4C, CD8, CTL) |
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Drug allergy: HIV RTI med? HLA? ethnic group? |
Abacavir HLA-B57:01 57 white HIV, delayed hypersensitivity |
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Drug allergy: allopurinol HLA, ethnic group reaction? |
HLA B58:01 58 Asians severe cutaneous reactions |
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PCN MAJOR vs minor determinants |
MAJOR: Pre-Pen (Benzyloyl-Polylysine) minor: pen g, -loate |
MAJORly PREtty BENZ LOYAL! pen g minor are low apes. |
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MC drug causing serum sickness (F, arthralgia, LN, proteinura) in children? why? |
cefaclor toxic metabolites from altered metabolism |
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causes of drug-induced thrombocytopenia? other ab in TTP? |
- Heparin (HIT): IgG to heparin-platelet factor (HPF 4) - Vancomycin: ?? - Quinine-dep glycoproteins 2b/3a, 1b/9 anti-ADAMTS13 (von willebrand cleaving factor) in TTP |
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Agents causing PIE (pulmonary infilatrates with eosinophilia)? |
Nitrofurantoin & other abx NSAIDs gran lungs = MTX eos + lungs = Nitro, NSAIDs eos + nose = AERD NSAID eos + kidney = ceph, pcn |
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agent causing acute granulomatous ILD? |
methotrexate eos + lungs (PIE) = Nitro, NSAIDs |
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In Toxic Epidermal Necrolysis, should you use steroids? |
NO! It's contraindicated! |
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|
This monobactam has the same R chain as this cephalosporin. |
AZtreonam & CefTAZadime |
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Chemotherapy agents that can cause IgE-mediated allergy & sensitization after multiple rounds of that treatment? |
Platinum compounds (cisplatin, etc.) |
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In AERD patients, which cytokines are: 1. Increased? 2. Decreased? |
1. LTC4 synthase, LTs, & LT receptors (cysLTR 1 & 2) 2. Decreased lipoxin & EP2 (rec for PGE2, which (-) 5LO) |
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1. What does prostaglandin PGE2 block? 2. What is its receptor that is decreased in AERD? |
1. PGE2 blocks 5-LO 2. Receptor is EP2 Recall, zileuton also block 5-LO |
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Which type of reactions to one particular NSAID is NOT going to cross-react to other NSAIDs? |
anaphylaxis hypersens pneumonitis aseptic meningitis |
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|
Cytokine Release Syndrome is a/w which cytokines and mab? |
IL-6 & TNF-a rituximab (anti-CD20) muromunab (anti-CD3) |
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Btw DRESS & TEN, which has more autoimmunity vs mortality? |
TENS: more mortality DRESS: more auto-immunity (think 4B. eos IL-4,5) |
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|
Cold urticarias with Negative Ice-cube test? |
1. Cholinergic (cold-induced) urt 2. Systemic cold urticaria 3. Cold-dependent dermatographism 4. PLAID (AD) - PLYg2 5. FCAS (AD) - CIAS1-AP |
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|
What condition has been associated with solar urticaria? |
Erythropoietic protoporphyria |
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Name physical urticarias that can be passively transferred by serum. Name known Ig associated. |
Cold-induced (IgG,M,E, cryoglob) Solar Type 1 & 4 Dermatographism (IgE) |
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auto-antibodies aw CIU? |
thryoid: anti-TPO > anti-TG IgG,IgM against α chain of FCeR1 (high affinity rec), and possibly augmented by C5a Recall, C5a rec is CD88 on MCtc & basophils and is a powerful chemotactic factor for neutrophils. Recall, Langerhan/DCs lack beta unit on FCeR1 |
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decreased C1q and anti-C1q antibodies is seen in which diseases? |
AAE (acquired angiodema) HUV (hypocomplementic urticaria vasculitis) |
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Factor I does what? Deficiency may lead to what? |
Factor I inhibits C3 Factor I deficiency may lead to urticaria Without Factor I blocking, C3 is overactivated, leading to lots of C3a anaphylotoxin and urticaria. |
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|
Where does C1-INH block? mutation gene? |
C1-INH blocks C1, pre-kallikrein, and Factor 12. Mutation: SERPING1 (AD) |
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Which HAE tx has risks for anaphylaxis? |
ecallantide (Kalbitor) |
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|
MC cause of chronic urticaria? |
physical urticaria - 20% (the rest (80%) is idiopathic CIU) |
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which physicial urticaria have similar sized hives as aquagenic urticaria? |
Cholinergic & Aquagenic both have very fine (1-3 mm) hives. |
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Which HAE tx almost always have local injection reactions? due to which receptor? |
icatibant (Firazyr) - skin on fire! MRG-X2 (recall, opiod rec on mast cells) |
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|
What is RA,NTES? Other name? Role? |
a chemokine (Regulated on Activation, Normal T cell Expressed and Secreted) CCL5 (+) NK cells & also suppress HIV |
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Hypersensitivity Pneumonitis (HP) predominant with CD4 or CD8? What cell may you seen on histo lung bx? |
Trick question! Early: CD8 Later: CD4, neutrophils multinucleated giant cells |
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|
Agent in Farmer's lung HSP? |
Thermophillic actinomyces Mycopolyspora faeni |
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|
Woodworker agents causing HSP? Which also cause OA? |
Alternaria mold Suberosis in corkwood Plicatic acid in wood (also in OA) |
Woodwork with: alternate clubs (made from wood) in hand driving cork Subaru pliable wood in the trunk |
|
Normal sweat chloride levels |
30-40 mmol/L 60 is positive! |
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|
What does A1AT inhibit? Genotypes? i.e. M, etc. type of emphysema? |
A1AT (-) Neutrophil elastase M (normal) -> S -> Z -> Null (worse) panlobular/panacinar (vs centrilobular in cigarettes, paraseptal in ptx) |
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|
Most important radiographic finding in ABPA? |
central bronchiectasis +/- fleeting infiltrates |
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|
Anemophilous? Entomophilous? Amphiphilous? |
Anemophilous: wind pollinated Entomophilous insect pollinated Amphiphilous: BOTH |
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|
Which fungi are prevalent on prevalent on Dry, Windy Days? |
Dry, Windy Days Alterneria (club shaped) Cladosporum (cigar shaped) Also Epicoccum |
Smoking cigar with club in hand on hot windy day |
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Which fungi are prevalent on Humid (steamy) Nights? |
Ascospore Basidiospore (mushrooms, puffballs, smuts, rusts) |
Busy Smuts and Ass on Humid Nights |
|
Virus with molecular mimicry to: glutamic decarboxylase (GAD)? |
Coxsackie B |
|
|
Virus with molecular mimicry to: MBB (major basic protein) |
Hep B |
Hep B in Major League Baseball player |
|
Virus with molecular mimicry to: acetylCHOLine receptor? |
Herpes simplex |
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|
Name antigens on RBCs |
Rh D, Kell, Duffy A,B, O H-antigen is in O group and is absence in "Bombay" phenotype in LAD2 subjects I antigen (IgM, cold-reactive AIHA) ?? mult sites (IgG, warm-reactive AIHA) P antigen (IgG, paroxysmal cold hemoglobinuria, positive polar ice cube test) |
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|
What tests should you do with insect-sting anaphylaxis? |
skin test --> sIgE --> repeat skin test 3-6 months later (If tx with VIT, treat all positives tests regardless if no sting before). tryptase (positive >11)! (for systemic mastocytosis) |
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|
Risk factors for severe venom/sting reactions? |
older male repeated stings honeybee stings severity at initial sting baseline tryptase beta blockers / ACE-I |
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|
Most common indoor molds? |
Penicillium Aspergillus |
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|
Which aeroallergen IT is standardized in the US? Who oversees it? |
Grasses Short ragweed DM Cat CBER under FDA |
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|
With Immunotherapy (IT), what markers goes up? |
specific IgE increased initially, then decrease later. IgG1 (early), IgG4 (later) TH1: IFN-g (IgG2 class switch), IL-12 Treg: IL-10, TGF-b (recall, these also stimulate IgA class switch IL-10 also helps IgG1, IgG3 class switch.) |
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With immunotherapy (IT), what receptor (& CD name) is decreased? With IT, which cytokines are decreased? |
low affinity FCeR2 (CD23) decreased HAF, PAF, TNF |
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|
Immunotherapy is indicated for AD with sensitization to what? |
DM |
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|
WHat med should you consider in refractory anaphylaxis due to beta blocker? |
glucagon (has inotropic & chronotropic effects on the heart, since not dependent on adrenergic receptors) |
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|
Consider stopping which meds to start IT? |
beta-blockers ??ACE-I (for VIT) |
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All of these AIT forms are efficacious EXCEPT for: 1. epicutaneous (sticker) 2. intranasal 3. intralymphatic 4. Rinkel |
Rinkel (initial dose based on serial intradermal) |
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|
Name some adjuvants for immunotherapy (IT). |
Center-Al - aqueous, alum-precipitated, less systemic reactions MPL (Monophosphoryl Lipid A) |
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|
General rule of thumb in future prognosis of stopping immunotherapy? |
The longer, the better. After 3-4 years of therapy, 30-40% of patients report return of symptoms 3-4 years later. |
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|
FDA Pregnancy Risk categories? |
A. no risk B. no risk in humans (budesonide, montelukast, cromolyn, Xolair) C. ? D. Positive risk E. Contraindicated! |
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|
Main allergen types in plant/paleo diet (seeds, nuts, legumes)? How about fruits? |
prolamin (includes lipid transfer protein in fruits) cupin |
Lame cupids eat paleo diet.
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|
Beta-agonist: What makes LABA longer acting? |
They have long hydrophobic tails that is stuck to theplasma membrane “exo site”, whereas the “albuterol” portion is hydrophilic. |
|
|
Which inhaled beta agonists are full vs partial agonists? |
Formoterol: Full agonist, Fast-acting salmeterol& albuterol are partial agonists. |
|
|
Name some adverse effects of beta agonists? O2, e+/-, & glucose? |
Tremor for the first week MI, Prolonged QT, palp/arrhythmia Transient dip in oxygen, K+, Mg+ and increase in glucose |
|
|
How does beta-2 desensitization affect the medication? |
It decreases duration(i.e. 8 hrs instead of 12 hrs), NOT degreeof bronchodilation. It also does NOT affect albuterol response in acute asthma. |
|
|
Name some ANTI-cholinergics inhalers. Which musc receptors do they bind? |
SAMA: Ipratropium (M2 = M3) LAMA: Tiotropium (M3 > M2, dissociates from M2 quicker) Umeclidinium |
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|
Which of the 5 muscarinic/acetylcholine receptors are predominant in lungs? Their action in the lung? |
M3: the main one that causes bronchoconstriction! M2: excitatory & inhibitory (inhibition may cause paradoxic bronchoconstriction) M1 |
|
|
theophylline MoA & SE?
|
(-) PDEphosphoDiesterase, which usu breaksdown cAMP/cGMP. Theophylline = Increased cAMP/cGMP = bronchodilation, anti-inflammation.
SE: (-) adenosine receptor, causing (+) CNS, arrhythmias, gastric secretions |
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|
Theophylline therapeutic range |
10-25 mg/L |
|
|
What decreases theophylline? Remember, theo has no effect <10mg/L. |
Meds: rifampin, AEDs Smoking Children High protein, low carb diet |
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What increases & "boosts" theophylline? Recall, toxicity >25mg/L. |
Meds: OCPs, Zileuton, macrolide, cipro, cimetidine, verapamil, SRI Liver disease, CHF, alcohol Viral disease, PNA, vaccines Old age |
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Which meds decreases steroids? |
Increased metabolism: rifampin,AEDs antacids (reduce bioavailability) |
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Which meds increases steroids? |
Decreased metabolism:
ketoconazole,OCPs Methylpred also affected by clarithromycin and troleandomycin. |
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Things that are Inflammatory: |
IL-1, IL-6, TNF IL-12, IL-18, IFN-g HAT PDE |
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Things that are ANTI-inflammatory: |
Steroids NSAID H2 receptor (increase IL-10) IL-10 / TGF-beta (IgA class switch) IL-35 HDAC PGE2 (-) 5LO |
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Antihistamine MoA? |
Inverse agonist: binds H rec, and pushes it to the inactive form. |
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AntiHistamines non-H1 effects? In which meds? |
Anti-CHOLinergic: all 1st gen Alpha-blocker: promethazine Local anesthetic: diphenhydramine Anti-serotonin: cyproheptadine (appetite) |
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Important details of glucocorticoid structure: |
A-ring C1-2: double bond increases GLUCO > mineralocorticoid activity) C-ring C11:pro-drug ketone (C=O) must be converted to OH group to be active i.e.cortisone => hydrocortisone, pred => prednisolone D-ring: C16,17,21:additions increase potency and enhance degradation. |
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Cortisol is bound to which plasma proteins? |
Transcortin (high affinity, few around) Albumin (low affinity, lots around) |
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glucocorticoid receptors? Which one is active? |
GR-alpha (active) GR-beta (inactive) – increased in steroid resistance, fatal & nocturnal asthma, nasal polyposis |
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glucocorticoid pathway of mechanism of action? |
GC goes inside cell and bind GR-alpha, causing heat shock proteins to dissociate, allowing GR-a to become phosphorylated dimer to go to nucleus to bind DNA: 1. TRANS-ACTIVATE (binds GRE on anti-inflamm genes: IL-10,GILZ, MKP-1, IkBa, TTP [degrades inflamm mRNA]), HDAC [re-wraps histone]) a. Note, GC may (+) HDAC at low conc and may (+) HAT (for anti-infl genes) at high conc. 2. TRANS-REPRESS (binds and inhibits TF that promotes inflammatory genes). |
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Name other SE of steroids (skin, mm). |
Skin (striae, acne, hirsutism) MSK (aseptic necrosis, myopathy) Local: dysphonia, thrush |
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Effects of LTB4 vs cysLT (LTC/D/E)? |
LTB4: chemoattractant for Neut & Eos (Note: LTB-R1 is high affinity.) cysLT: POTENT bronchoconstriction >>> histamine.Also recruits some Eos. (Note: cysLT-R1binds LTD > C > E and is blocked by meds). |
LT Body 4 is ATTRACTIVE for Neut & Eos cyst LT C,D,E chokes |
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In AD, decrease in which tight junction protein may allow Langerhan to reach out outside? |
Claudin-1 (CLDN1 gene) |
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Filaggrin: 1. Odd Ratio for PN, AD, & asthma? 2. Found in lungs? 3. Downregulated by which cytokines in severe AD? |
1. PN 5x, AD 3x, and asthma 1.5x 2. No, not found on bronchial epithelium 3. Filaggrin is downregulated by IL-4, IL-13. |
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TSLP 1. Expressed by which cells? 2. Does what downstream? |
1. Keratinocytes expressed TSLP 2. TSLP (+) DCs to release chemokines CCL17 and CCL22, which attract T cells. TSLP also (+) naïve T => TH2. Recall:
CCL26 (eotaxin-3) CCL27 (CTACK) |
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In AD, infiltrating T cells release which ligand for E-selectin (CD62E)? |
CLA (Cutaneous Lymphocyte-associated Antigen) (Recall, selectin CD62 also bind CD15 Sialyl Lewis X/A carb as well, and its fucosylation is the problem in LAD2.) |
T cells send out cute LALAs (CLA) to be selected to E-selectin |
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Cytokines found acute vs chronic AD? IFN-g does what to keratinocytes? |
Acute AD (TH2): IL-4, IL-5 Chronic AD (TH1): IL-13, IL-12, IFN-g Keratinocytes=>TSLP, (+)DCs IDEC (+) Tcell to make IFN-g IFN-g (+) Fas (CD95) on keratinocytes, ??? though decreased IFN-g systemically |
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Chemokines in Atopic Dermatitis? |
CCL5 (RANTES) CCL11 (Eotaxin) CCL13 (MCP-4) CCL17 (TARC) CCL27 (CTACK) IL-16 (attracts TH2) CTACK = cutan T cell attact chemokine, attracts CLA(+)/CCR10(+) T cells TARC = thymus & activ.-reg chemokine Recall, CCL17 & 22 also attract T cells. CCL26 is eotaxin 3. |
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Which skin DCs: 1. has more FCeR1? and (+) Tcells to make what?2. has FCeR1 missing which subunit? 3. has Birbeck granules? |
1. IDECs > Langerhans
IDEC (+) T cell to make IFN-g 2. Langerhans lacks classic beta subunit of FCeR1 3. Langerhan has Birbeck gran recall, autologous ab to alpha unit of FCeR1 in CIU |
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In AD, increased microbes & infections is due to what? |
Increased TH2, leading to decreased antimicrobial expression (i.e. H-beta defensin 2 & 3, Human cathelicidin LL-37) by keratinocytes. |
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In nasal provocation challenge, which are Pre-formed vs Newly-formed mediators in MC & basophils degranulation? |
Preformed: histamine, tryptase, bradykinin New: CT, PGD2 |
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In nasal provocation, do steroids decrease secretions of: - albumin (plasma leak)? - glandular secretions? |
- albumin (plasma leak)? yes - glandular secretions? No |
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Risk of AR? - Maternal smoke - High grass pollen count - Mediterranean diet |
- Maternal smoke: increased risk - High grass pollen count: DECREASED risk (thinkfarm/rural setting) - Mediterranean diet: DECREASED risk (thinkanti-oxidants) |
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Does IntraNasal CS affect airway BHR? Is there BHR in NARES? |
YES! INS decreased BHR. Yes, there is BHR in NARES. |
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For AR, does skin test or sIgE have better sensitivity? |
Neither, both have ~70% sensitivity |
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Gustatory rhinitis: - Due to which fibers? - Treatment? |
Due to (+) of sensory c-fibers by capsaicin on TRPV1receptor TX: ipratropium |
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rhinitis of pregnancy: 1. Do INS steroids work? 2. Frequency? When resolves? |
1. Yes, if they had pre-existing AR. But NO if it’s purely pregnancy-induced. Instead, use nasal decongestant & supportivemeasures. (Avoid ORAL decongestion, which is a/w gastroschisis! Yikes!) 2. 20%. Resolves within 2 weeks of delivery. |
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Atropic rhinitis (think old women with halitosis): 1. Which bacteria implicated? 2. TX? |
1. Klebsiella ozaenae 2. TX: lavage, debride crust |
think ozone crust |
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DDX for perforated nasal septum? |
Cocaine GPA (wegener’s) |
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Meds a/w rhinitis |
NSAIDs OCPs Anti-HTN PDE-5 inhibitor (sildenafil, etc) Pyschotropics & gabapentin Recall, PDE-4 inh is Roflumilast & Apremilast |
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Orchard & Timothy grass oral allergy is cross-reactive to which foods? |
orchard grass: melon, PN, potato/tomato (like latex hev b 7) timothy grass: chards, orange |
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When do sinuses develop? |
ME at birth F by Five yrs of age S by Six (really 8-10) |
(Think up and back, or alphabetically.)
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Where do the sinuses drain? |
M, E (anterior), F => ostiomeatal complex below middleturb E (posterior) => superior meatus S => sphenoethmoid recess above superior turb |
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What is concha bullosa? Haller cell? Mucocele? |
Concha: Air in middle turbinate (Associated with septal deviation, but NOT sinusitis!)
Haller cell: Ethmoidal air cells along orbit floor (It DOES increase risk of acute sinusitis.) mucocele: Epithelial lined sac completely filling the sinus. Mostly in frontal or ethmoid sinus, a/w CRS and may expand. Removed with surgery. |
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Acute rhinosinusitis: 1. duration definition? 2. associated receptor? Viral vs Bacterial sinusitis? |
4-12 weeks (3 months) ICAM (CD 54) is rec for both integrin & rhinovirus Viral if <10 days & not worsening Bacterial if worsening(or double worsening) within 10 days, or no improvement after 10 days |
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CRSwith Polyps (W v E) vs No polyps:
Which is TH2 or TH1? Which one may respond to oral steroids? |
POLYPS: Western polyps & AERD, think TH2 & eosinophils, but Asian polyps and CF have more TH1/TH17 and neutrophils!! No polyps: TH1 & IFN-g
Oral steroids (as well as saline rinses & biologics) can help shrink polyps! |
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Which main fungi is associated in AFS (acute fungal sinusitis)? (FYI, AFS is kinda like ABPA for the nose.) |
Aspergillus /Alternaria Bipolaris Curvularia Drechslera Exserohilium Fusarium Helminothosporium |
ABCDEF,H
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How to test for CSF leak? |
Beta 2 transferrin (from CSF)
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Which allergen HIGH exposure is most associated with asthma morbidity? |
Cockroach |
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What diet can increase or decrease FENO? |
INCREASE: viral URI, AR sandwich meats, veggies (spinach, green been, carrots, beets) Decrease: alcohol, smoking (other: spirometry, CF, pulm HTN) |
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Significance of periostin? |
Reflect IL-13 stimulation Suggests TH2 phenotype & response to glucocorticoids, along with FENO & serum eos |
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milk allergen |
Bos d 4-8 |
Bossy milk |
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egg allergen |
gal d 1-5 |
Egg gal |
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shrimp allergens |
Lit v 1 (myosin) Pen a 1 (tropomyosin) Recall, per pen der (tropomyosins) |
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fish allergen |
gad c 1 (parvalbumin) |
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Hazelnut allergen |
Cor a 8,9,14 |
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Apple allergen |
Mal d 1,2 |
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Food allergies clinical cross-reactivity % |
Cow/goal milk 92% Melon/fruits 92% SF 50% Fish 50% TN 35% (tho skin test 90%) Pollen/peach 50% Latex/fruit 35% Milk/beef 10% Legumes 5% |
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Risk factors for PN allergy? Risk factor for food allergy |
PN: family member wtih PN allergy (Increase 7-fold!!), severe eczema, egg allergy Food allergy: family history of atopic dermatitis and atopy. |
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FPIES foods? |
MC: milk, soy Older kids: egg, wheat (& rice, oats), nuts, fish, poultry |
Think classic 6 + grains & poultry |
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PPV, & 50% NNV for ImmunoCap for Food allergy: 1. egg 2. milk 3. PN 4. fish |
sIgE (kUA/L) egg 7 (2 if 2 y/o), NNV 2 milk 15 (5 if 1 y/o), NNV 2 PN 14, NNV 2 w/ hx (5 if no hx) Fish 20 |
egg 7 (2), 2 milk 15 (5), 2 PN 14, 2 (5) Fish 20 |
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Which component allergens of peanut & hazelnut have been a/w clinical severity? |
peanut: ara h 1, 2, 3 hznut: cor a 9, 14 |
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Which food additive can trigger asthma? also consider sensitivity to which food colors? |
sulfites (though RARE) red: carmine red-orange: annatto |
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What is chemosis? |
edema of conjunctiva |
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Name the inhibitory Fc receptor that has cytoplasmic ITIM? CD name? |
FCgR2b (think b=block!), aka CD32 FCgR2a is activating |
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Mold associated with winemaker's HP? |
Botrytis |
Think winemaker's bottles |
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Contact derm allergen in henna |
paraPhenyleneDiamine hair dressers & henna tattoo |
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Do Quaternium-15 and BNP (bromo-nitro-propane) release formaldehyde? |
Yes, these preservatives do. |
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What is Stachybotrys? |
indoor black mold |
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Dz with these ANA patterns: 1. homogenous? 2. speckled 3. nucleolar 4. centromere (think anti-centromere ab) |
1. SLE lupus 2. (everything) 3. scleroderma, polymyositis 4. scleroderma |
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DRESS is a/w which infection? |
HHV-6 |
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HEPA filters down to what size |
0.3 microns |
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What is the most potent TLR ligand for B cell proliferation? |
CpG (ligand for TLR 9) |
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Cytokines involved in pathway of steroid-induced apoptosis of eosinophils? |
Caspase-3 NJK Fas (CD95) |
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Cytokines involved with isoswitching to IgG (subclass), IgA, & IgE? |
IgG1/3: IL-10 IgG2: IFN-g IgG4 & IgE: IL-4, IL-13 IgA: IL-10 & TGF-b |
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Which HAE tx contraindicated with rabbit allergy? |
recomb C1 inh (Ruconest) |
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What marker may be elevated in cryoglobulinemia? |
RF (IgM) |
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BAL is predominantly CD4 or CD8 in: 1. HP 2. Sarcoidosis |
HP: early is CD8 (restrictive), late is CD4/PMN (mixed restrictive/obstructive)
Sarcoidosis: CD4 |
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False (+) VDRL in which condition? |
Anti-phospholipid syndrome |
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Which IgE receptor is low-affinity? CD name? what happens with allergy IT? |
FCeR2 (CD23) decrease with IT |
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Which histamine receptor is Anti-inflammatory? How? |
by decreasing chemotaxis, increase ANT-inflamm IL-10 |
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Which CD markers are receptors for viruses? |
CD21: EBV, HHV8 CD46: adenovirus CD54: rhinovirus CD48: NK rec for EBV-infected B cells |
21 Nut 46 Rush 48 Rave 54 Law |
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Cytokines important for T cell survival? |
IL-7 for memory T cell, B cell dev IL-15 for memory CD8 (and NK stimulation!) |
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What downregulates vs upregulates IgE receptors (FcER1 & FcER2/CD23)? |
ACTIVATING: Signal 1: IL-4, IL-13, IL-9 "Signal 2": CD40L, APRIL/BAFF, TLR-ligand DOWNREGULATING: Xolair, IFN-g, IL-21 (bound to FcER2) --> TF Bcl-6 (THf), SOCS |
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IgE receptors subunits on FCeR1 vs FCeR2? CIU has ab to which subunit? Which cells lack beta unit of R1? |
FcER1 is either tetramer (a,b,g,g) or trimer (a,g,g with no beta). FcER2 is only trimer. In CIU, there is ab to alpha unit of FcER1. DC (incl Langerhans) lack classic beta unit in FcER1. |
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IgE receptor FcER1 vs. FcER2: Which is high vs lower affinity? Which rec is downregulated by Xolair? Which downregulate IgE by membrane form when bound to CD21? What cleaves it to soluble forms to upregulate IgE? |
FcER1: high affinity; downreg with Xolair FcER2 (CD23): lower affinity, membrane binding to CD21 downregulates IgE. Membrane stalk can be cleaved to soluble CD23 by ADAM or Der p 1, and upregulates IgE. CD23a on B cells, CD23b on other cells. |
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Elevated IL-6 may present with what symptoms? In which diseases? |
fever, microcytic anemia, low albumin, high CRP Castleman's lymph hyperplasia Atrial myxoma Multiple myeloma of plasma cells |
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Lymph node hyperplasia: 1. Kikuchi disease? 2. Kimura disease? 3. Castleman? |
1. necrotizing LAD, self-limited 2. cervical LAD with elevated IgE 3. autoinflammation-like (fever, anemia, elevated CRP) due to IL-6 overproduction. |
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Name ligands for: 1. TLR 1, 2, 6 2. TLR 5 3. mouse TLR 4 4. TLR 7,8 5. TLR 9 6. TLR 3 |
TLR 1, 2, 6: lipoprotein, peptidoglycan TLR 5: flagellan mouse TLR 4: LPS TLR 10: influenza TLR 7,8: ssRNA TLR 9: CpG DNA (most potent for B cell stimulation) TLR 3: dsRNA |
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In thymic development, which mutation is a/w: Nude SCID (hairless)? |
FOXN1 TF mutation |
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In thymic development, which TF is a/w: DiGeorge 22q deletion |
Tbx1 (Tbox) TF mutation |
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What cell surface marker is indicative of "exhaustion"? |
PD1 (programmed death) |
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What what age to we convert to more CD45RO > CD45RA? |
~college age |
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CLR C-Lectin family (extracell): 1. What does dectin 1 & 2 bind? 2. DC sign binds? |
1. fungal beta glucan, & Der p 1, (+) TH17 2. sugars mannose, fucose |
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NK KIR receptors: 1. Binds what? 2. Which receptor subtype is activating or inhibitory? KIR = Killer-cell Ig-like Receptors |
KIR receptors bind MHC I on infected cell. KIR short tail is stimulating i.e. KIR2DS1 KIR long tail is bLocking and has 2 ITIMs each. i.e. KIR2DL1 |
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NK memory cells are triggered by what? |
Infections & Nickel hypersensitivity. (But we don't know of any specific receptors for it.) Recall, IL-15 helps memory CD8 but also stimulates NK cell differentiation. |
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common beta chain: - CD name? - receptor family includes? |
CD131 donut receptors for IL-3, IL-5, GM-CSF (Recall: CD132 demon is common gamma chain) |
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TNF-alpha - produced by which cells? - cut by what to soluble trimer? - a/w syndrome - a/w sign during anaphylaxis? - up or down with IT? - TNF-alpha receptor blockers used for which anti-inflammatory dz? |
TNF-a is produced by mast cells (pre-formed), TH1, among others TNF-alpha (and TNF rec 1) are both cut by TACE (TNF-alpha converting enzyme) from membrane trimer to a soluble trimer. (TNF rec 2 is a monomer.) TNF is aw Cytokine Release Syndrome and Hypotension in anaphylaxis. TNF is decreased with IT. TNF-alpha blockers used for TRAPs (only etanercept) and DADA2. |
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Fever, increased CRP and Ig, low albumin is indicative of which response? Associated cytokines? |
Acute phase reaction IL-6 |
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Intracellular PRRs (pattern recog rec): 1. NLR (+) what cytokines? 2. NLRP3 binds what? associated with which gene mutation? 3. NLPR1 binds what? |
1. IL-1, IL-18 2. Alum in vaccines CAPS (CIAS1-Associated Periodic Syndrome) 3. bacterial muramyldipeptide |
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What does STING stand for? What does it (+)? STING GoF mutation is a/w which syndrome? |
STimulator of INterferon Gene Type 1 interferons SAVI syndrome (STING-Associated Vasculopathy with onset in Infancy) |
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MC factor for IVIG side effects in PIDD patient? |
concurrent infection |
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In making IVIG, what removes prions? |
nanofiltration |
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In making IVIG, what inactivates lipid envelope viruses? Name those viruses |
S/D & Caprylate removes HIV, Hep B & C |
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3 autoinflammatory disease a/w aMyloidosis proteins? |
CAPS (FCAS, MW, NOMID/CINCA) FMF TRAPS |
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What is pathergy? Seen in which disease? How is Koebner phenomenon different? |
Exaggerated skin injury after minor injury. seen in Behcet's Koebner has lines |
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Intestinal lymphagiectasia with low albumin, low Ig, and low WBCs likely has preferential loss of which cells? |
CD4 cells |
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Treatment for Wegener's GPA renal disease? Avoid which medication? |
steroid, cyclophosphamide or retuximab AVOID MTX (bad for kidneys)! |
Return the cycling steroids to those Wagon kidneys. |
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Rheumatoid Arthritis: extra-articular sx? |
Pulm (ILD, org pna, pleural eff, nodules) CV: Vasculitis, Pericarditis Skin, Eyes Felty's splnmegaly/neutropenia |
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Which pollen can release breathable particles laden with PolyGALACTURONase allergen? |
Timothy grass (phleum) |
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Honeybee and Vespids share limited cross-reactivity which which standardized allergen? |
hyaluronidase |
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Which lab do you use to check for cross-reactivity from sensitization to multiple venoms? |
inhibition immunoassay |
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Risk factor for Idiopathic anaphylaxis? |
atopy |
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Mutation that is a risk factor for insect venom anaphylaxis? |
mutation in Tyrosine Kinase Growth receptor (TKGR) |
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What vital sign is affected maximally by both H1 & H2 receptors? |
pulse pressure |
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Nasal provocation, which cytokines are in the: Early response? Late response? |
Early: histamine, bradykinin, PGD2 Late: IL4/5/13, eotaxin, ECP |
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Which are Kinase vs Phosphatase: SH1, CD45, calcineurin, and SHP1/SHIP? |
kinase: includes lck, syk, SH1 phosphatase: (+) includes CD45, calcineurin (-) includes SHP1, SHP2, SHIP |
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Do ITAM, ITIM, and adaptor proteins have intrinsic kinetic activity? Name some adaptors. |
No, they do NOT have intrinsic kinase or phosphatase activity! Adaptors: LAT, SLP-76, SLP-65(BLNK), Grb-2 |
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Where does lck kinase play a role? |
lck is near the cytoplasmic tail of CD4 or CD8 and phosphorylates ITAMs on the zeta chains and well as recruit ZAP-70. |
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Which kinase (+) Phospholipase C-gamma in T cell vs B cell? What does PLC-g do? PLC-g mutation in which dz? |
T-cell: iTK B-cell: BTK PLC-g catalyzes PIP2 into DAG and IP3!!! PLAID syndrome |
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What phosphorylates PIP2 into PIP3? mutation dz? PIP3's role? |
Pi3 kinase mutation can cause CVID PIP3 recruits iTK (recruits PLC-g) and aKT (inhibits Bcl-2/Bcl-XL apoptosis & activates mTor pathway of cell growth) |
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IP3 (IP man) stimulates which ER sensor, to open up which channel? What happens downstream? |
IP3 (+) STIM1 sensor, causing CRAC channel to open the floodgates of calcium into the cell. Calcium-bound CALMODULIN activates the phosphatase CALCINEURIN, which frees NFAT. |
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DAG (+) PKC, which (+) which complex? Think Dagger in your Pocket |
CBM - CARD 11 (prev CARMA1) - Bcl 10 - MALT 1 Recall, Bcl-2, Bcl-XL in apoptosis Bcl-6 (STAT3 in THf) |
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Ras MAP kinase is activated by which 2 GEFs (guanine exchange factor)? |
Ras is (+) by: RasGRP, recruited by DAG SOS (Sons of Seven), recruited by LAT/Grb-2 |
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Name cell type, other TF, and cytokines for: STAT1 |
STAT 1=> macrophage => IL-12 |
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Name cell type, other TF, and cytokines for: STAT3? related to 2 cells |
STAT 3=> THf (Bcl-6) => IL-21 STAT 3=> TH17 (RorgT) => IL-17 STAT3 mutation = JOB HIES Recall: Bcl-2, Bcl-XL in apoptosis Bcl-6 (STAT3 in THf) Bcl-10 in CBM complex -> NF-kB |
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Name cell type, other TF, and cytokines for: STAT4? |
STAT 4=> TH1 (Tbet) => IL-12, IFN-γ, TNF-α |
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Name cell type, other TF, and cytokines for: STAT5? |
STAT 5=> Treg (Foxp3) => IL10, IL-35, TGF-b |
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Name cell type, other TF, and cytokines for: STAT6? |
STAT 6=> TH2 (GATA 3) => IL-4/13 |
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ISHAM diagnosis criteria for ABPA |
Asthma/CF positive Aspergillus skin test IgE > 1000 IU/ml (less if other criteria present) 2 of the following: # serum precipitating ab Aspergillus, # radiograph findings, # AEC >500/mcl |
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Immunodeficiencies with susceptibility to HSV encephalitis? Which one is AD vs AR? What foreign particle does it recognize? |
AD: TLR 3 deficiency (independent of MyD88 & IRAK-4). TLR3 binds dsRNA (or synthetic Poly I:C in research). AR: UNC93b |
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amorphic mutations in this XL disease causes incontinentia Pigmenti in females and lethal in males? |
NEMO (NFkB Essential MOdulator) deficiency |
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Deficiency in DAF and/or CD59 results in what? |
Paroxysmal nocturnal hemaglobinuria (night dark urine) CD59 is anti-hemolysis |
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Source of HSP in humidifier & sauna? (Think air) |
Aureobasidium |
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Source of HSP with malt worker? |
Aspergillus |
Asperger kid drinking malt |
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Which agents are a/w Occupational Asthma: 1. HMW>10kd, usu IgE-mediated? 2. LMW <10kD: - spray paint, plastics, insulation? - paint, adhesives? - nail salon, dental? - hair bleach? - wood & sawdust? - welder? - solder? - cleaning agents? |
1. HMW (foods) 2. LMW includes: - isocyanates (spray paint, plastics, insulation) - anhydrides (paint, adhesives) - acrylates (nail salon, dental) - persulfate salts (hair bleach) - plicatic acid (cedar) - platinum salt (welder) - colophony (cosmetics, wax; made from pine tree) - aldehydes, quaternary ammoniums (cleaning agents) |
Cyan sprays, plastics, insulation A hybrid paint Acrylic nails & dental implants Purposeful bleached hair with coco, glyc, parafin Pliable wood Platinum welder Colorful cosmetic wax All the quarter cleaning agents |
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What type of proteins are responsible for Oral Pollen Syndrome? |
Profilins |
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Which Ig can activate complement? alternative pathway??? |
classic: IgG1/3 alternative: IgG3/4, IgA1/2 |
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Which IgG subclass have shortest half lives? |
IgG3, 8-9 days whereas IgG1/2/4 are 23 days. |
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Ig effector function, can kill though which two ways? which Ig are involved? |
ADCC: (No IgM!), IgG1/2/3/4. Complement: IgM, IgG 1/-/3/4 |
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IL-2 receptor consists of 3 forms with which combinations of subunits? Recall, disease association(s)? |
High affinity: IL2Rb, common gamma demon (CD132), IL2Ra nail (CD25) Intermediate affinity: common g demon (CD132), IL2Ra nail (CD25) low affinity: only IL2Ra nail (CD25) Recall: 1. CD25+CD2 found in mast cell dz. 1. CD25 deficiency in T- SCID & IPEX-like dz. 2. NOT included in IL-15 Receptor, which share IL2Rb & CD132 (common g), but has its own IL-15Ra. |
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What is lymphotoxin (LT)? Coded by which genetic region? The 2 forms consist of which units? Which is soluble vs membrane bound? receptors? membrane form's role is important for what? Role of membrane form? |
Lymphotoxin (LT) is TNF-beta, coded by MHC class 3 region. soluble: LTa3, alpha trimer, rec is TNF rec 1 or 2 membrane: LTa1b2 (1 alpha + 2 beta); rec is LT beta receptor (LTbR); important for fetal development of lymphoid tissue! |
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Which IL-1 & TNF receptor is activating? |
Activating: IL-1 receptor 1 and TNF receptor 1 Nonactivating: IL-1 receptor 2 is decoy and TNF receptor 2 |
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what does IL-18 do? |
aka "IFN-gamma inducing factor" think TH1 response: IL-12, IL-18, IFN-gamma |
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Which cytokines help B cells to class switch to IgA? |
IL-10 & TGF-beta (recall, these are T-reg cytokines that are generally "anti-inflammatory") |
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APRIL and BAFF can both bind to which 2 receptors for B cell activation? |
BCMA & TACI BCMA binds APRIL more strongly! |
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What are decoy chemokine receptors named? Which is used by Plasmodium in malaria? other function? |
Atypical ChemoKine Receptor ACKR1-4 ACKR1 (DARC) in malaria; mutation = resistance Besides decoy, can transport a chemokine from one side of cell to other. |
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Chemokine receptors are which type of receptor molecule? |
G-protein (7 transmembrane portions) |
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Integrins (a/b): - have what CD nomenclature? - binds which ligands? |
Integrins (i.e. a1b1, LFA, Mac) CD11/18, CD49/CD29 Bind Ig family molecules: ICAM-1 liar (CD54), rhinovirus ICAM-2 dozen (CD102) ICAM-3 lose (CD50) ICAM-4 Noreen CD242 |
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Selectins - binds which ligands (CD names too)? |
Selectins are CD62E/P/L Bind Sialyl Lewis X (CD15) and CLA Recall, CD15s problem in LAD2 |
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What other proteins are coded in MHC Class I, II, & III gene regions? |
MCH I gene: MHC I MHC II gene: MHC II + TAP (MHC I presentation) MHC III gene: Complement, Lymphotoxin (TNF-b) |
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IRAK-4 deficiency lead to which types of infections? |
pyogenic infections. MyD88 pathway (recall, girl with pcv meningitis) |
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What is C3 Nephritic Factor cause disease? |
stabilize C3bBb so Factor H can't even degrade it, so complement keeps activating |
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What helps transport IgA & IgM into the lumen? |
Poly-Ig receptor |
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Which cytokines (+) class switch to IgA? |
TGF-beta, IL-5 |
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Chemokines in T-cell zone (parafollicular) & its receptor? |
CCL19/21 binds to CCR7 |
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Pro-Apoptosis vs Anti-apoptosis pathways? |
Pro-apoptosis: Intrinsic: Bim/Bax/Bak => caspase 9 Extrinsin: Fas (CD95): FasL (CD178) => caspase 8 Caspase 8/9 => Caspase 3 Anti: Intrinsic: Bcl-2, Bcl-XL Recall: Bcl-6 (STAT3 in THf) Bcl-10 in CBM complex -> DAG/NF-kB |
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Which CD marker is on monocytes & part of TLR4? |
CD14 |
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plasmacytoid DC has which receptor (also CD name?) but lacks which other CD marker found in other DCs? Role of plasmacytoid DC? |
Has IL-3 receptor (CD123 denim), but lacks CD11 integrin P. DC secretes IFN-a, helping viral infections! |
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Which chemokine receptor is a/w susc to West Nile virus? |
CCR5, the same one that confers resistance HIV Recall: CCR5 binds CCL2/3 CCR7 binds CCLL 19/21 |
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Vit B12 is elevated in which diseases? |
ALPS Myeloproliferative HES |
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Tranplant risks: lowest to highest? matched sibling, no conditioning matched cord matched unrelated haploidentical |
Lower risk: Matched sibling Matched cord & unrelated haploidentical Highest risk |
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Describe graft rejection: 1. Hyperacute rejection 2. Acute 3. Chronic GVH: 1. Acute 2. chronic |
1. rejection on table (preexisting ab) 2. days to months; T-cell killing 3. months to years; CD4 vasculopathy 1. GVH acute macpap rash <100 days 2. GVH chronic skin/alopecia/myositis/FTT/cytopenia/pericarditis >100 days |
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In transplant, what is conditioning for? When to avoid conditioning? Example reduced regimen? When is it unnecessary? |
Conditioning reduces host's immunity to make "space" for new B cells. Avoid/reduce conditioning with active infections. Ex. reduced regimen: fludarabine, alemtuzamab, busulfan Unnecessary for SCID with matched sibling donor. |
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Risk for which infections with TNF inhibitors? |
mycobacterium TB reactivation Fungal (i.e. histo) |
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which is best med to stop mast cell degranulation? cromolyn, cetirizine, epi, steroid |
epinephrine (b2 agonist) |
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Choose a specific human eosinophil marker: arysulfatase, EDN, MBP1, MBP2 |
human is MBP2 |
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Cathepsin G is unique to which cell? |
neutrophils, which also has LTB4 |
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Basement shower mold? |
Epicoccum nigrum |
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DLCO is decreased in which obstructive airway disease? |
COPD (not asthma!) due to decreased surface area in alveoli. Recall, DLCO decreased in restrictive lung diseases. |
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Anaphylaxis in fish may be due to which parasite? |
Anisaki |
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What is Bacillary angiomatosis? |
vascular nodules, fever, LAD in HIV (+) people with Bartonella |
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How long after RBCs & IVIG can you give Live vs non-live vaccines |
Live: 3 months after blood products Non-live: 6-8 months after |
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Anti-CCP antibodies in which dz? |
RA rheumatoid arthritis |
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What is hypervaccination? Used for what? example regimen? |
Lots of vaccination to drive up Ig in complement deficiencies Recall, opsonins include Ig and complement. Meningococcal vaccine every 3 years. |
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Dz with early complement (C1-4) deficiencies? |
SLE (apoptotic cells) atherosclerotic diseases With deficiency, there is no complement to help clear apoptotic cells or cholesterol. |
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Measure what to assess environmental load of: 1. Gram (+) 2. Gram (-) |
1. Gram Pos: muramic acid in the thick peptidoglycan cell wall (vs single layer in GN). 2. Gram Neg: endotoxin found in LPS outer membrane of GN |
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Infections with NK deficiency? Deficiency with low NK bright? Deficiency with low NK dim? |
viruses, esp herpes low NK bright (precursor): GATA2 deficiency low NK dim (mature): MCM4 deficiency & perforin deficiency causing HLH |
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NK cell (+) by which cytokine? |
IL-15 (which also helps CD8 survival) |
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North vs South? Examples? Pooideae Panicoideae Chloridoideae |
Northern: Pooideae (Timothy, rye, blue, etc.) Southern: Panic: Bahia, Johnson, corn, sugarcane Chlor: Bermuda, prairie |
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