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Phys endocrine disea
WVSOM -- Physiology Endocrine Diseases
| Question | Answer |
|---|---|
| Growth Hormone Excess (pre-puberty) | gigantism |
| Growth Hormone Excess (post-puberty) | acromegally, increased organ size, glucose intolerance |
| Prolactin deficiency | Failure to lacate |
| Factors that increase prolactin secretion | estrogen, breast-feeding, sleep, stress, TRH, dopamine antagonists |
| Factors that decrease prolactin secretion | deopamine, bromocriptine, somatostatin, prolactin |
| Hyperthyroidism symptoms | increased metabolic rate, weight loss, negative Nitrogen balance, incrased heat production, increased cardiac output, dyspnea, tremor, weakness, goiter |
| Hyperthyroid causes | graves disease, thyroid neoplasm |
| Graves Disease | Antibodies to TSH receptor |
| TSH Levels in Hyperthyroidism | decreased |
| Addison’s Disease | autoimmune destruction of adrenal cortex; Primary adrenocortical insufficiency |
| Clinical features of Addison’s Disease | hypoglycemia, anorexia, weight loss, nausea, vomiting, weakness, hypotension, Hyperkalemia, metabolic acidosis, decresased pubic and axillary hair in women |
| Cushing’s Syndrome | adrenocortical excess; hyperplasia of adrenal glands….not to be confused with Cushing’s Disease |
| Clinical features of Cushing’s Syndrome | hyperglycemia, muscle wasting, central obesity, round face, buffalo hump, osteoporosis, striae, verilzation and menstrual disorders in women, HTN |
| ACTH levels in Cushing’s | decreased (negative feedback of cortisol) |
| Cushings Disease | overproduction of ACTH; usually drug induced; same symptoms as Cushing Syndrome |
| Conn’s Syndrome | aldosterone secreting tumor |
| Congenital Adrenal hyperplasia | deficiency in CYP21A2, CYP11B1, CYP 17, StAR |
| CYP 17 deficiancy | results in decreased cortisol production by slowing conversion of pregnelone and progesterone to the cortisol pathway |
| CYP11B1 deficiency | decreased aldosterone and cortisol production |
| CYP21A2 deficiency | decreased aldosterone and cortisol production |
| Hypothalmic Diabetes Insipidis | Deficiency in ADH |
| Nephrogenic Diabetes Insipidis | Renal resistance to ADH |
| Dipsogenic Diabetes Insipidis | Excessive Water drinking |