Glucocorticoids and mineralocorticoids Flashcards
Corticosteriods
Adrenal gland steriods
Made in zona reticularis (17)
Glucocorticoid
Endo and Exo glucocorticoid
Made in Zona fasciculata (3,17,11)
MineralCorticoid
endo Aldosterone
Made in zona reticularis (17)
Exo mineral corticoid
Made in zona Glomerulosa ( 3, 21 , 11, aldosterone systhesis)
Glucocorticoid Biosynthesis
Cholesterol (P450SCC) to Pregnenolone
Pregnenolone (3beta and sigma 5) to progesterone
progesterone (17 alpha) 17 hydroxyproesterone
17 hydroxyproesterone (21 beta) to 11 deoxycortisol
11 deoxycortisol (11-beta) cortisol
Cortisol effects Deficiency
- hypoglycemia
- Weight loss
- hypotesnsion
- anemia
- weakness
- long immune response and fever
Cortisol effect excess
cushing diagram
1. insulin resistance
2. stria in skin
3. central fat and weight gain
4. mild hypertesnsion
5. weakness and bone weakness
6. immunocompromised
Aldoesterone deficiency
- hypotension
- Hyponatremia with ADH
- hyperkalemia
Aldoesterone deficiency
- hypotension
- Hyponatremia with ADH
- hyperkalemia
Aldosterone Excess
1.hypertension
2.hypernatremia
3.hypokalemia
Cortisol Indications
- Adrenal insufficiency
- congenital hyperplasia
- diagnosis of cushing syndrom
- infam disorders ( osteoarthritis, UC crohn, Rhinitis, Asthma)
- immun disorders( Arthritis, MS, Organ transplant)
Addison disease
MOA: aldosterone is out of control (not by HPA axis )
Indicaitons: hypoglycemia, hypotension, weight loss, weakness
Congenital adreanl disorder
Dex suppresion test
HPA suppresion
Cortilsol Contraindication
- systemic infections
- diabetes
- peptic ulcer
- osteoporosis
- HF and HTN
- Cataracts and glaucoma
- Pregnacny
- CNS