Effect of mineralocorticoids and salt loading on renin release, renal renin content and renal renin mRNA in mice.

Abstract:

:1. DOCA and 9 alpha-fludrocortisone were given to mice on a high-sodium diet for periods of up to 20 weeks, resulting in decreases in plasma renin concentration, renal renin concentration and renal renin mRNA with both treatments. 2. Plasma renin concentration was suppressed prior to suppression of renin mRNA and renal renin levels, indicating that suppression of synthesis and secretion of renin occur separately. 3. The decrease in renal renin concentration that occurred with DOCA was greater and more rapid than the decrease that occurred with 9 alpha-fludrocortisone, suggesting that DOCA caused intra-renal breakdown of renin. 4. When DOCA was given to mice on a low-sodium diet, plasma renin concentration and renal renin concentration increased, indicating that the effects of DOCA on renin levels were dependent on dietary sodium. 5. Renin secretion and synthesis appeared to be controlled by different mechanisms and sodium balance has an important effect on both processes.

authors

Barrett G,Morgan T,Smith M,Aldred P

doi

10.1111/j.1440-1681.1989.tb01614.x

subject

Has Abstract

pub_date

1989-08-01 00:00:00

pages

631-9

issue

8

eissn

0305-1870

issn

1440-1681

journal_volume

16

pub_type

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