ISSN:
1432-0878
Keywords:
Renin secretion
;
Ca-dependence
;
Vascular smooth muscle cells
;
Afferent arteriole
;
Myosin fibers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Most renin-positive cells of the preglomerular arteriole are intermediate in morphological appearence between smooth muscle cells and epithelioid cells. Intermediate cells contain, in addition to secretory granules, contractile proteins arranged as a sublemmal network. The paradoxical (inhibitory) role of calcium in renin secretion is explained, on the basis of these findings, by an increased tone of the sublemmal network; this might impair the preexocytotic access of renin granules to the cell membrane.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00216658
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