Document Detail


Cellular mechanisms of renin release.
MedLine Citation:
PMID:  2852076     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The renin-angiotensin system plays a central role in salt and water balance and in the regulation of arterial blood pressure. The level of activity of this system is determined primarily by the rate at which the granulated juxtaglomerular cells (JG cells) secrete renin into the blood. Physiologically, renin secretory rate is controlled by a number of first messengers: afferent arteriolar transmural pressure or some function of it, such as stretch (the baroreceptor mechanism); solute transport in the macula densa segment of the nephron (the macula densa mechanism); catecholamines released from the renal nerves and the adrenal medulla (the beta-adrenergic mechanism); extracellular concentrations of many organic and inorganic substances including angiotensin II, vasopressin, K, and Mg (1-3). In addition to these physiological first messengers, a number of pharmacological agents affect renin secretion (3). It is an accepted principle of cellular biology that first messengers act by affecting the intracellular concentrations of only a few second messengers. The evidence that intracellular free ionic calcium, cyclic AMP, and cyclic GMP are second messengers in renin secretion has been reviewed in detail recently (4-9). These reviews are cited extensively, since space limitations precluded citing all the original literature.
Authors:
P C Churchill
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.; Review    
Journal Detail:
Title:  Clinical and experimental hypertension. Part A, Theory and practice     Volume:  10     ISSN:  0730-0077     ISO Abbreviation:  Clin Exp Hypertens A     Publication Date:  1988  
Date Detail:
Created Date:  1989-03-28     Completed Date:  1989-03-28     Revised Date:  2008-02-12    
Medline Journal Info:
Nlm Unique ID:  8207790     Medline TA:  Clin Exp Hypertens A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1189-202     Citation Subset:  IM    
Affiliation:
Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan 48201.
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MeSH Terms
Descriptor/Qualifier:
Animals
Calcium / physiology
Cyclic AMP / physiology
Juxtaglomerular Apparatus / metabolism*
Rats
Renin / secretion*
Second Messenger Systems
Grant Support
ID/Acronym/Agency:
HL 24880/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
60-92-4/Cyclic AMP; 7440-70-2/Calcium; EC 3.4.23.15/Renin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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