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129 Cards in this Set

  • Front
  • Back

what makes PTH?

chief cells in the Parathyroid gland

Collagen found in bone

collagen type 1

Collagen found in cartilage

Collagen type 2

paraventricular nucleus

oxytocin and vasopressin

what produces oxytocin

paraventricular nucleus

what produces ADH

supraoptic nucleus and the paraventricular nucleus

supraoptic nucelus

produces ADH

what does the adenohypophysis drain into

anterior pituitary drains into the portal hypophysial blood vessels

leuprolide

GnRH agonist



used to treat prostate cancer

Goserelin

GnRH agonist



used to treat prostate cancer

Degarelix

GnGH antagonist



used to treat prostate cancer

Somatropin

GnRH agonist



used to treat dwarfism


Mecasermin

recombinant IGF-1



used to treat pituitary dwarfism



a little dwarf in a meca-suit


octreotide and lanreotide

somatostatin agonist



used to treat gigantism or acromegaly

pegvisomant

growth hormone receptor antagonist

Risperidone

antipsychotic drug that inhibits doapmine release and can cause hyperprolactinemia

which hormones are produced by the anterior pituitary

GH, ACTH, TSH, FSHm LH, and prolactin



adrenocorticotropic hormone

Somatotropin

Growth Hormone

Basophilic hormones

B-FLAT



FSH, LH, ACTH, TSH

what do alpha, beta, and delta pancreatic cells secrete

alpha- glucagon


beta- insulin


delta- somatostatin (growth hormone release inhibiting hormone)

Nelson syndrome

rapid enlargement of a pituitary adenoma that occurs after the removal of both adrenal glands, which causes cushing's syndrome



seen in corticotroph cell adenoma

Sheehan's Syndrome

postpartum necrosis of anterior pituitary due to post-partum hemorrhage, DIC, sickle cell anemia, trauma or shock

patient presents with cushing-like symptoms but decreased ACTH levels

the cause is the adrenal gland.



high ACTH suggests there is a problem with the pituitary or an ectopic source (SCC) pumping out ACTH leading to disease. low ACTH levels tell us the adrenal gland is pumping out excess cortisol on its own.

Familial AD supernumerary copies of the N-myc oncogene on chromosome 1

Adrenal neuoblastoma

describe the axis for the release of cortisol

Hypothalamus secretes Corticotropin releasing hormone (CRH) --> anterior pituitary releases ACTH --> adrenal cortex releases cortisol

compare primary to secondary adrenal insufficiency

primary- low cortisol and aldosterone



secondary- decreased ACTH secretion but no loss of aldosterone

Orphan Annie Eyes

Papillary Carcinoma of the Thyroid

Psammoma

calcifications seen in:


1. papillary carcinoma of the thyroid


2. papillary carcinoma of the ovary


3. meningioma of the brain

one parathyroid gland is enlarged



all glands are enlarged

parathyoid adenoma



parathyroid hyperplasia

endocrine disease often associated with chronic renal failure

parathyroid hyperplasia

patient presents with decreased libido, moderately obesity, gynocomastia or galactorrhea

Prolactinoma?

Patient presents with amenorrhea, galactorrhea, decreased libido, and infertility



tests, diagnosis, treatment

test- check prolactin levels



Dx- prolactinoma



Rx- Cabergoline or Bromocriptine



"losing your libido and milk will make you less of a bro and more crabby"

treatment for prolactinoma

Cabergoline and bromocriptine



"losing your libido and mil will make you less of a bro and more crabby"

what is the most common functional pituitary tumor

prolactinoma

insulin induced hypoglycemia test is abnormal

gold standard in the diagnosis of Growth Hormone Deficiency (GHD)



when insulin is administered the GH should increase to counteract it, but here we have a GH deficiency

abnormal glucose suppression of GH test

GH excess (acromegaly or gigantism)



normally when glucose is given we want less less GH (it is the opposite of insulin), but here we have an excess of GH

best treatment for GH excess

pituitary surgery



if that doesn't work then Octreotide (somatostatin receptor ligand- GH release inhibitor)

Octreotide

(somatostatin receptor ligand- GH release inhibitor)

patient is given ACTH and there is no rise in cortisol levels

primary or secondary adrenal insufficiency

most common cause of hypopituitarism?

pituitary tumors

most pituitary tumors are non-functioning or functioning


functioning

long-term vs short-term mortality from hypopituitarism

LT- CVD



ST- Lack of cortisol

when people stop taking their glucocorticoids, it is the most common cause of what?

secondary adrenal insufficiency and hypoadrenal crisis



they need to take their drugs so they will have cortisol or they could die

treatment for ACUTE primary hypoadrenalism

cortisol, fluid, glucose


hydrocortisone


Florinef

treatment for CHRONIC primary hypoadrenalism

hydrocortisone


Florinef

patient presents with easy bruising, facial plethora, proximal myopathy, redish violaceous striae

Cushing's

Cushing's disease and dexamethasone suppresses serum cortisol

Pituitary disease- because the problem is in the pituitary, not the adrenal, which will respond to dexamethasone by decreasing cortisol production

Cushing's disease and dexamethasone does NOT suppress serum cortisol

adrenal disease- we do not suppress cortisol because the problem is in the adrenals which produce the cortisol



could also be ectopic ACTH/CRH

pheochromocytoma and symptoms

tumor of the adrenal medulla that produces catecholamines (epinephrine, norepinephrine, dopamine)



hyPertension, head Pain (headache), Palipitations, Perspiration, Pallor


Neuroma phenotype of MEN 2

pheochromocytoma

effect on calcium levels in serum:



1. acidic environment


2. alkalemic environment

1. increased ionized free calcium


2. decreased ionized free calcium

GLUT 4

adipose tissue and skeletal muscle



reduced in type 2 diabetes

intranuclear inclusions

characteristic of papillary carcinoma

psammoma body

papillary carcinoma of the thyroid


papillary carcinoma of the ovary


meningioma

orphan annie eyes

papillary carcinoma of the thyroid



ground glass appearance of nuclei

ground glass appearance of nuclei

papillary carcinoma of the thyroid

high calcitonin secreteing tumr

medullary thyroid carcinoma

most common cause of cushing's

exogenous- we need to rule it out

Cushing disease vs syndrome

disease means there is pituitary hypersecretion



syndrome means there is any other cause

diabetic ketoacidosis is suggestive of what?

characteristic of type 1 diabetes

Howship's lacunae

formed by osteoclasts as they break down bone

what is unique to cortical bone

Volkman's canals

Alendronate

Bisphosphonate- used to treat osteoporosis



reduces hip fractures


Risedronate

Bisphosphonate- used to treat osteoporosis



reduces vertebral fractures

Reclast

Bisphosphonate- used to treat osteoporosis



3 year risk reduction of vertebral fractures

managing the intake of what is the primary strategy for achieving glycemic control

carbohydrates

give three examples of carbohydrates

grains, fruit/juice, milk/yogurt

GAB

marker for type 1 diabetes- beta cell death

what are the three ketone bodies

aceto-acetate


acetone


B-hydroxybutyrate

which ketone body does not go to the brain or heart

acetone

treatment of decompensated diabetes

must replace insulin

primary factor in diagnosis of metabolic syndrome

waist circumference

Wolff-Chaikoff Effect

high levels of iodine in the blood cause decreased synthesis of thyroid hormone

D1 vs D2 vs D3

D1: reverseT3 --> T4 --> T3 (plasma T3 production)


Increases hyperthyroidism



D2: T4 --> rT3 (local T3 production)
Decreases hyperthyroidism



D3: T3 --> T4 (T3 degradation)
Increases hyperthyroidism

Thyroidoxicosis

hyperthyroidism

what is a secondary cause of hyperthyroidism

TSH-secreting pituitary adenoma

most useful screening test for hyperthyroidism

TSH

most common cause of hyperthyroidism

Grave's disease

Diffuse Toxic hyperplasia

Grave's Disease



autoantibody stimulates TSH receptors and leads to release of thyroid hormone

patient is mentally retarded, has short stature, coarse facial features, and a protruding tongue

cretinism

MEN 2A and 2B

pheochromocytoma

patient presents with an enlarged thyroid shortly after a viral infection

Subacute granulomatous (de Quervain) thyroidits

antithyroid microsomal antibody test

Hashimoto thyroiditis

what can get into the airway and mimic anaplastic carcinoma

Riedel thyroiditis

what frequently metastasizes to the lateral lymph nodes of the neck

papillary carcinoma

during surgery one parathyroid gland is found to be larger than the rest, what is the diagnosis

Parathyroid adenoma

which thyroiditis is very hard- "hard as wood"

Riedel fibrosing thyroiditis

55 year old man presents with deepening of the voice and large tongue

myxedema

what is the most often used thyroid hormone and what is it?

Levothyroxine



pure synthetic T4, so it has a slower onset and longer duration.

methimazole

antithyroid drug



inhibits thyroid peroxidase- blocks thyroid hormone synthesis

Sodium iodide 131-I is used as a cure for what?

hyperthyroidism


Grave's disease

alendronate

bisphosphonate



used to treat osteoporosis by inhibiting osteoclast activity, decreasing bone resorption



SE- osteonecrosis of the jaw and atypical femur fractures

Risedronate

intermittent bisphosphonate

Zoledronic acid

intermittent bisphosphonate

Denosumab

anti- RANK antibody- stops osteoclast activation



used to treat osteoporosis

Teriparatide

PTH hormone



activates osteoclasts to resorb bone, which causes it to grow back fuller



only drug that causes bone anabolism

if TSH is high on a serum sensitive TSH assay suspect what?

suspect hypothyroidism

if TSH is low on a serum sensitive TSH assay suspect what?

suspect hyperthyroidism

antithyroid peroxidase antibodies present

Hashimoto's thyroiditis

high TSH, low free T3 and free T4

hypothyroidism

I-123

used to test for hyperthyroidism



not for radioablation

cold intolerance


constipation


facial puffiness


hair loss


dry skin

Hypothyroidism

when hypothyroidism is severe what can occur

Myxedema

Hashimoto's is hyper or hypothyroidism

Hypothyroidism or more correctly it is thyroiditis

Hypothyroidism (4 examples)

-Hashimoto's (iodine sufficient; antibodies)


-Congenital hypthyroidism (cretinism)


-Subacute thyroiditis (de Quervain)- usually following the flu


-Riedel Thyroiditis (thyroid replaced by fibrous tissue)

what is the main factor that predict s the progression of subclinical hypothyroidism to overt hypothyroidism

the presence of antithyroid antibodies

how do we treat subclinical hypothyroidism

thyroxine (T4)

low TSH, high free T3 and free T4

hyperthyroidism

hyperthyroidism with high radioiodine uptake

goiter



toxic nodule or multinodular goiter

iodine-131

radio ablation

pemberton sign

you life your hands above your head and the goiter cuts off flow out your head- face turns red

Goiter:



Is it hyperfunctioning?



Is it hypofunctioning?


• Toxic multinodular goiter

• Hashimotos hypothyroidism

what is the major incretin hormone

Glucagon-like protein 1 (GLP)



it increases calcium levels in beta cells- stimulating insulin release

compare GLUT 1-4

o GLUT 1- all tissues (basal glucose uptake)
o GLUT 2- liver, pancreatic Beta cells, and GI epithelium
o GLUT 3- all tissues (basal glucose uptake)
o GLUT 4- muscle and fat cells


C peptide

o Proinsulin contains a C-peptide, but mature insulin does not.



o C peptide allows us to measure how much insulin in their blood came from an injection and how much is naturally produced.


insulin upregulates which GLUT transporter

GLUT 4



on skeletal muscle and adipocytes

insulin enters beta cells via which GLUT

GLUT 2

what infection may trigger type 1 diabetes

Coxsackie B4 virus

patient presents with fruity smelling breath

diabetic ketoacidosis

amyloid deposits in the pancreatic islets

type 2 diabetes

patient presents with high insulin, low glucose, and high C peptide

Insulinoma

treatment-resistant peptic ulcers

Insulinomas

achlorhydria

low stomach acid

what is the drug of choice for type 2 diabetes and how does it work?

Metformin



decreases gluconeogenesis and fatty acid oxidation in the liver

patient presents with dermatitis, oral lesions, and abnormal amino acid levels

Glucagonoma- tumor of the alpha cells of the pancreas

what is the leading cause of blindness in adults

diabetes

patient presents with tremor, tachycardia, anxiety, sweating, flushing, abnormal mentation, headache, hypothermia, comvulsions

Hypoglycemia

what drugs block the post prandial rise in glucagon

GLP-1 agents (Exenatide)



DPP-4 inhibitors

what drug blocks glucose uptake in the intestines

Acarbose