adrenocorticosteroids Flashcards
mifepristone
gluocorticoid antagonist
spirnolactone
mineralcorticoid antagonist
ketoconazole
corticosteroid synthesis inhibitor
aminoglutehimide
corticosteroid synthesis inhibitor
metyrapone
corticosteroid synthesis inhibitor
fludrocortisone
mineralcorticoid agonist
major effects of cortisol
1) gluconeogenesis and 2) glycogen synthesis = maintains hepatic glycogen in fasting state
- - inc glucose levels
stimulate lipolysis
stimulate protein catabolism
net = maintain adequate glucose to brain
catabolic effects = wasting to lymphoid, CT, muscle, fat, skin, osteoporosis, growth retardation
immunosuppressive =
- inc neutrophils (inc influx and dec migration form BV)
- dec lymphocytes, monocytes, eosinophils, basophils
- vasoconstriction - d/t mast cell degranulation
anti-inflamm
- inhibit PLA2 - blocking arachidonic acid, COX2
- induction of MAPK-phosphatase 1
CNS: behavioral changes - insomnia/euphoria
Inc ICP
Suppress ACTH, growth hormone, TSH, LH
Peptic ulcers (stimulate gastric acid and suppress immune response to h. pylori)
- Inc platelets, RBC
- renal function is impaired with cortisol deficiency
- develop fetal lungs
which glucocorticoid has a short t 1/2
beclomethasone
- penetrates airway mucosa
which glucocorticoid can be given IM
triamcinolone
which 2 glucocorticoids can be given with aerosol
beclomethasone
triamcinolone
good for asthma, or pt that you don’t want to systemic effects
which glucocorticoids can be given systemic
beclomethasone
dexamethasone
hydrocortisone
triamcinolone
mineralocorticoids MOA
inc expression of Na/K ATPase and ENaC
- promote Na reabsorption from renal tubule
- promote K and H excretion
short to medium acting glucocorticoids
hydrocortisone
prednisone
methylprednisolone
intermediate acting glucocorticoid
traimcinolone
long acting glucocorticoid
dexamethasone