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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Effect of somatostatin on plasma renin activity.

Intravenous infusion of somatostatin in mongrel dogs caused a significant decrease in the peripheral plasma renin activity (PRA) enhanced by pentobarbital sodium anesthesia or furosemide treatment. However, the inhibitory activity vanished within 10 min after termination of somatostatin infusion. Intrarenal arterial infusion of somatostatin decreased furosemide-enhanced PRA in renal vein by 24.0%, 16.6% and 8.6% in dose of 0.1, 0.5 and 1.0 microgram, respectively. On the other hand, high doses of the peptide (50-200 microgram) failed to decrease. The changes in PRA occurred in the absence of any alteration in blood pressure during the intravenous infusion under furosemide treatment. In an in vitro study, the addition of somatostatin in doses of 0.01 and 0.05 microgram suppressed the renin release in dog renal cortical cell suspension by 74.3% and 53.6%, respectively. Therefore, in both intrarenal arterial infusion and the cell suspension system, somatostatin was increasingly effective in decreasing renin release towards the lower end of the dose range tested. These results suggest that the effect of somatostatin on hyperreninemia may involve an inhibition of renin release at the cell level in the kidney.[1]


  1. Effect of somatostatin on plasma renin activity. Izumi, Y., Honda, M., Hatano, M. Endocrinol. Jpn. (1979) [Pubmed]
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