Book ChapterDOI
Steroidogenesis in the Zones of the Mammalian Adrenal Cortex
G.P. Vinson,C.J. Kenyon +1 more
- pp 201-264
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This chapter discusses the receptor sites for ACTH and isolated cell studies, and discusses acute and chronic factors affecting secretion along with renin-angiotensin system, functional aspects of adrenocortical zonation, metatheria, adrenOCortical sex steroids, and gonadotrophins.Abstract:
Publisher Summary This chapter describes steroidogenesis in the zones of the mammalian adrenal cortex By the microanatomy of the adrenal cortex, exemplified by those eutherian and metatherian species, it is clear that there are three major zones, namely, the zona glomerulosa, the zona fasciculata, and the zona reticularis with sub-divisions and additional zones Cells of organs are replaced throughout life, and the adrenal cortex is no exception; controversy lies in the mode whereby this is achieved Whatever may be the fact of the matter, the three zones produce various steroids in differing amounts and with both common and disparate controlling mechanisms The chapter discusses the receptor sites for ACTH and isolated cell studies It also discusses acute and chronic factors affecting secretion along with renin-angiotensin system, functional aspects of adrenocortical zonation, metatheria, adrenocortical sex steroids, and gonadotrophinsread more
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Journal ArticleDOI
The adrenal androgen-stimulating hormone does not exist
TL;DR: It is suggested here that the postulated hormone does not exist and that the adrenarche, which parallels the development of the inner zone, the zona reticularis, is best explained by a morphological and functional change in the inner cells that is induced locally by high levels of cortisol.
Journal ArticleDOI
Larval metamorphosis of the opisthobranch mollusc Adalaria proxima (Gastropoda: Nudibranchia): the effects of choline and elevated potassium ion concentration
TL;DR: Timed-exposure experiments indicated that artificial induction elicited by elevated K and choline involve either separate mechanisms, or different parts of the same pathway, and larvae required to be continuously exposed to 19 mM K ASW in order to complete metamorphosis would subsequently complete development in normal ASW following only 1–2 h exposure to the inducer.
Book ChapterDOI
Cytophysiology of the adrenal zona glomerulosa.
TL;DR: The chapter reviews the fine structure and cytology of the normally functioning zona glomerulosa of various mammalian species and discusses the morphology of the zona intermedia cells.
Journal ArticleDOI
Preliminary observations on the role of the mesonephros in the development of the adrenal cortex.
Shakti Upadhyay,Luciano Zamboni +1 more
TL;DR: In previous studies, it has been shown that the mesonephric cells which colonize the gonads differentiate into sustentacular and interstitial steroidogenic cells; the presence of an analogous cellular migration from the mes onephros to the adrenal cortex now suggests that also the Adrenal cortical cells may be of mesOnephric origin.
Journal ArticleDOI
Steroid concentrations in the outer and inner zones of the adrenal cortex of the guinea pig.
TL;DR: The outer (glomerulosa and fasciculata) and inner (reticularis) zones of the adrenal cortex of the guinea pig were separated and their steroid content determined.
References
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Journal ArticleDOI
Biological aromatization of steroids
TL;DR: The present report describes the conversion of androgenic steroids to estrogens in high yield by a system consisting of human placental microsomes, the reduced form of triphosphopyridine nucleotide, and oxygen.
Journal ArticleDOI
Hypotensive Agents and Pressor Substances: The Effect of Epinephrine, Norepinephrine, Angiotensin II, and Others on the Secretory Rate of Aldosterone in Man
TL;DR: The results suggest that aldosterone may regulate salt balance and blood pressure by its interaction with pressor substances such as angiotensin.
Journal ArticleDOI
A cyclic-3',5'-adenosine monophosphate dependent protein kinase from the adrenal cortex: comparison with a cyclic AMP binding protein.
Gordon N. Gill,Leonard D. Garren +1 more
TL;DR: A functional interaction of these two proteins is suggested and initial purification procedures which result in a 200-fold purification of the binding protein and a 50-fold purge of the protein kinase are presented.
Journal ArticleDOI
Adenosine 3',5'-Monophosphate as the Intracellular Mediator of the Action of Adrenocorticotropic Hormone on the Adrenal Cortex
TL;DR: The ability of the atropic adrenal to accumulate cyclic AMP in response to ACTH was compatible with the hypothesis that cyclicAMP is involved in the mechanism for the restitution of adrenal growth and steroidogenic capacity.
Journal ArticleDOI
Studies on the role of protein synthesis in the regulation of corticosterone production by adrenocorticotropic hormone in vivo
TL;DR: The paper was presented at the Cold Spring Harbor Symposia on Quantitative Biology, vol.
Related Papers (5)
Adrenocortical Control of Epinephrine Synthesis in Health and Disease
R.J. Wurtman,L.A. Pohorecky +1 more