Exam 4 Flashcards
Steroid Drugs
Hydrocortisone
Prednisone
Dexamethasone
Fludrocortisone
Spironolactone
Hormone Type of Adrenal Medulla
Epinephrine
Hormone Types of Adrenal Cortex
Corticosteroids and androgens
Hormone of Cortical Zona Glomerulosa
Aldosterone
Hormones of Cortical Zona Fasciculata and Zona Reticularis
Cortisol and androgens
Zones of the Adrenal Cortex from Shallow to Deep
Glomerulosa
Fasciculata
Reticularis
Glucocorticoid General Function
Metabolic effects
Anti inflammatory
Mineralocorticoid General Function
Salt and water retention
Cortisol Synthesis General Pattern
Synthesized as need and not stored
Secreted in response to stress
Released daily in the AM
Cortisol Feedback Pattern
Negative feedbacks corticotropin releasing factor in the hypothalamus
Negative feedbacks ACTH in the anterior pituitary
Primary Glucocorticoid Metabolic Effects
Increase in glucose
Increase in muscle breakdown
Fat redistribution
Glucocorticoid Cardiovascular Effects
Salt and water retention
Increase in cardiac output
Augments epinephrine vasoconstriction
Additional Glucocorticoid Effects
Inhibits vitamin D to decrease body Ca2+
Stimulates gastric acid
Altered neuronal function
Inhibits growth
Induces fetal lung surfactant
Triggers of Aldosterone Effects
Low blood volume
High K+
Mineralocorticoid Effects
Increased Na+ and water retention
Increased K+ and H+ excretion
CV issues with Na+ retention
K+ and pH issues
Pathology of Glucocorticoid Toxicity
Cushingoid symptoms
Pathology of Steroid Withdrawal
Addisonian crisis
Treatment of Cushing Symptoms
Ketoconazole
Steroid Site of Molecular Action
Nuclear transcription factor receptors
General Protein Binding of Steroid Drugs
HIGH except dexamethasone
Drug of Choice for People Who Cannot Make Cortisol
Hydrocortisone
Chemical Structure of Glucocorticoid Selectivity
16 carbon substitution
Chemical Structure of Glucocorticoid Selectivity
17 carbon OH group
Chemical Structure of Increased Steroid Potency
9 carbon fluorine