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
Cortisol interaction
- Nsaid
- diabetic agents
- drug effect K levels
- antiHTN meds
- CYP inducers
- CYP inhibitors
- Live vaccines
weak Gluco and mineral
Hydro 1 anti inflame 1 na-retaining potency
Cortisone .5 and .5
Potent gluco and mineral
Fludrocortisone 10 ant inflam 125 na retention
Potent gluco and weak mineral
Prednisolone 4 and 1
methyprednisolone 5 and .5
anti inflam and na retention
Potent gluco and no mineral
triamcinolone 5 0
betamethasone 25 0
dexamethasone 25 0
anti inflam and na retention
Fomulation of corticosteroids
PO only for cortisone, fludrocortisone and pred
inhalation for triamcinolone
PO and inject only for methylprednisolone
How to treat Parenteral Gluco
Hydrocortisone, methylpred, triam, betamethasone, dexameth
use: for emergencies (hyrdocortisone drug of choice)
Oral gluco
Hydrocortisone, pred, methylpred, dexa
Use: adrenal insufficiency, Infam, soild organ transplant, chemo
Triamcinolone
MOA: same as cortisol
Use:Asthma, allergies, COPD
AD: cortisol ones, Oropharyngeal candidiasis, Throat irritation
Topical Glucocorticoids
Hydocorti, triam, beta, dexa
MOA: same as cortisal
AD: same as cortisol
Notes: safest for chronic use