Effect of pituitary intermediate lobe extract on steroid production by the isolated zona glomerulosa and fasciculata cells.
The effect of intermediate lobe extract (ILE) on aldosterone and corticosterone production of the zona glomerulosa cells and on corticosterone production of the zona fasciculata cells was investigated. The slope of the dose-response curve of ILE dilution was steeper than that of alpha h 1-39 ACTH measured on zona glomerulosa steroid production. The ED50 of both ILE and ACTH was lower when measured on zona glomerulosa than on zona fasciculata steroid production. It is supposed that a hormone (or some other substance) in ILE alters the sensitivity to ACTH of the zona glomerulosa cells.
D000302:Adrenal Cortex / Q000187:drug effects / Q000378:metabolism*; D000324:Adrenocorticotropic Hormone / Q000494:pharmacology; D000450:Aldosterone / Q000096:biosynthesis*; D000818:Animals; D003345:Corticosterone / Q000096:biosynthesis*; D004305:Dose-Response Relationship, Drug; D008297:Male; D010902:Pituitary Gland / Q000502:physiology*; D051381:Rats
D000450:Aldosterone; D000324:Adrenocorticotropic Hormone; D003345:Corticosterone