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42 Cards in this Set
- Front
- Back
Metabolic disorders are usually inherited in what pattern? |
Autosomal recessive |
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Hypomyelination, gliosis, microcephaly and no lysosomal storage are all signs of what metabolic disease? |
Phenylketonuria |
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Decreased pigmentation in hair and skin, seizures and hyperactivity, severe mental retardation are all clinical manifestations of what metabolic disease? |
Phenylketonuria |
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Deficiency of galactose-1-phosphate uridyl transferase |
Galactosemia |
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In galactosemia there is an accumulation of |
G1P, (galactose 1 phosphate) |
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In Tay Sach's disease, there is an accumulation of |
Gangliosides in the brain |
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Defective enzyme in Tay Sach's disease (GM2 gangliosidis) |
Hexoaminidiase A alpha subunit |
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Most common amongst Ashkenazi Jews and a small population in Quebec |
Tay Sachs disease |
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Deficiency in acid sphingomyelase |
Niemann Pick's Disease |
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Accumulation of sphigomyelin in |
Niemann Pick's disease |
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Breakdown of sphingomyelin to ceramide and phosphorylcholine impaired leading to accumulation in phagocytic cells and neurons -> massing visceromegaly and neurological disorders |
Type A Niemann Picks Disease |
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Accumulation of sphingomyelin leading to massive visceromegaly only and no neurological symptoms |
Type B Niemann Picks |
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The most common underlying cause of acquired metabolic disorders is |
hypoxia (mostly related to atherosclerotic plaques) |
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Leading cause of blindness is |
Diabetic retinopathy |
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Accelerated atherosclerosis affecting aorta and large & medium sized arteries leading to myocardial infarcts caused by diabetes Gangrene in lower extremeties Diabetic nephropaty |
Macrovascular disease in diabetes |
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Leading cause of end-stage renal failure leading to kidney transplant |
Diabetic Nephropathy |
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no new blood vessels are formed but hemorrhaging (bleeding), and complications to the vasculature including venous dilation, capillary thickening, edema, etc. |
Non-proliferative retinopathy |
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proliferation of cells leading to formation of new blood vessels (neovascularization), fibrosis (connective tissue being laid down), and hemorrhage of these newly formed blood vessels |
Proliferative retinopathy |
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Squamous metaplasia of special epithelial cells conjunctiva and tear ducts in the eye leading to dryness of cornea and conjunctiva caused by Vitamin A deficienct |
Xeropthlamia |
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Softened cornea caused by Vitamin A deficiency due to squamous metaplasia of specialized epithelial cells to keratinizing epithelial cells |
Keratomalacia |
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Keratin debris that build up in the eye forming small opaque spots as a result of the squamous metaplasia induced by Vitamin A deficiency |
Bitot Spots |
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Fat soluble vitamins |
A, D, E, K |
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What are the toxic effects of vitamin A buildup? |
Teratogen |
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Overweight BMI? |
>25kg/m2 |
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Obese BMI |
>30kg/m2 |
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Obesity waist cirumference in men and women |
Men > 40 inches Women > 35 inches |
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Vitamin A's role in night blindness? |
Component of rhodopsin in retinal rods |
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Components in cells responsible for recognition of pathogens? |
TLRs in conjuction with CD14 |
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MHC class I molecules are expressed on.... |
All healthy nucleated cells |
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MHC class I is an |
Inhibitory signal |
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Virus /damaged cells _____________expression of MHC I and _________________expression of activating ligandq |
inhibit expression of MHCI and increase expression of activating ligand |
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Classical complement pathway is part of... |
adaptive response because it requires antibodies |
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Alternative complement pathway is activated by... What are the 3 functions? |
Activated Microbes directly: 1. coating of microorganism 2. Chemokines for phagocytic cells 3. Formation of Membrane Attack Complexes --> pore formation |
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T cells have what type of receptor that is T cell specific? |
T Cell Receptors |
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CD3 complex are polypeptide chain clusters linked to ... They (do/do not) recognize antigens directly |
TCRs that do not recognize antigens directly |
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Associate with TCRs to help induce signalling in cells the T cells after TCRs bind an antigen. DO NOT bind antigen directly |
CD3 complexes |
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Ig that activates complement only |
IgM |
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Ig that activates complement, opsonizes and crosses placenta to protect fetus |
IgG |
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Coats various parasites and chemokine for eosinophils |
IgE |
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CD40L does what |
Stimulates microbicidal substances production in macrophages and Activate B cells |
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IL-2 |
Stimulates proliferation of T cells |
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IFN-gamma |
Stimulates production of IgG in b cells |