Intro to Endocrinology Flashcards
0
Q
what is the rate-limiting step for all steroidogenic pathways?
A
steroidogenic acute regulatory (StAR) protein mediation of cholesterol uptake from the cytosol to the inner mitochondrial membrane where P450scc is located
1
Q
what 4 hormones share the same alpha subunit?
A
TSH, LH, FSH, hCG
2
Q
where do thyroid, steroid, peptide hormones and catecholamines bind on/in cells?
A
thyroid: nuclear receptors
steroid: cytoplasmic or nuclear receptors
peptide hormones/catecholamines: cell surface receptors
