Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1978 Jan 31;373(1):15-9.
doi: 10.1007/BF00581143.

Iso-renin secretion from rat brain cortex slices in vitro under the influence of ions and electrical stimulation

I D Haulicá, D D Bránişteanu, G Petrescu, V Roşca

Iso-renin secretion from rat brain cortex slices in vitro under the influence of ions and electrical stimulation

I D Haulicá et al. Pflugers Arch. .

Abstract

The aim of this study was to obtain additional data concerning the influence of changes in osmolarity and ionic composition on iso-renin secretion from rat brain cortex slices. The slices were isolated and superfused in vitro according to the technique of Pull and McIlwain (1972). The secretion of iso-renin was strongly stimulated by an increase of Na+ concentration. Iso-renin output almost doubled upon raising NaCl from 120 to 240 mM. Decrease of the NaCl concentration to 60 mM resulted in a reduced iso renin secretion while addition of tetrodotoxin (TTX) (60 micron) did not significantly alter the iso-renin content of brain slices. Changes in osmotic pressure were without significant influence. Electrical stimulation or elevation of extracellular K+ concentrations enhanced iso-renin secretion. Furthermore, Ca2+ ions seem to increase both the content and the release of cerebral iso-renin.

PubMed Disclaimer

References

    1. Physiol Rev. 1972 Apr;52(2):468-561 - PubMed
    1. Endocrinology. 1975 Feb;96(2):508-10 - PubMed
    1. Fed Proc. 1971 Jul-Aug;30(4):1383-6 - PubMed
    1. Pharmacol Rev. 1973 Sep;25(3):415-49 - PubMed
    1. Int J Neuropharmacol. 1964 Dec;3:565-70 - PubMed