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Book ChapterDOI

Steroidogenesis in the Zones of the Mammalian Adrenal Cortex

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TLDR
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 gonadotrophins

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Citations
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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.

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.

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.
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