The Effects of Atrial Natriuretic Peptide on Renal Function and the Renin-Aldosterone System in Anesthetized Rabbits

NUSHIRO, N., ABE, K., SEINO, M., ITOH, S. and YOSHINAGA, K. The Effects of Atrial Natriuretic Peptide on Renal Function and the Renin-Aldosterone System in Anesthetized Rabbits. Tohoku J. exp. Med., 1987, 152 (3), 301-310 To determine the effects of α-human atrial natriuretic peptide (ANP) on renal...

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Veröffentlicht in:The Tohoku Journal of Experimental Medicine 1987, Vol.152(3), pp.301-310
Hauptverfasser: NUSHIRO, NOBORU, ABE, KEISHI, SEINO, MASAHIDE, ITOH, SADAYOSHI, YOSHINAGA, KAORU
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container_title The Tohoku Journal of Experimental Medicine
container_volume 152
creator NUSHIRO, NOBORU
ABE, KEISHI
SEINO, MASAHIDE
ITOH, SADAYOSHI
YOSHINAGA, KAORU
description NUSHIRO, N., ABE, K., SEINO, M., ITOH, S. and YOSHINAGA, K. The Effects of Atrial Natriuretic Peptide on Renal Function and the Renin-Aldosterone System in Anesthetized Rabbits. Tohoku J. exp. Med., 1987, 152 (3), 301-310 To determine the effects of α-human atrial natriuretic peptide (ANP) on renal function and the renin-aldosterone system in anesthetized rabbits, ANP (0.05μg/kg/min) or 5% dextrose solution in vehicle control was infused intravenously. The infusion ofANP resulted in a significant decrease in mean arterial pressure with an increase in renal blood flow (RBF). ANP also produced significant increases in urine volume and urinary sodium excretion. ANP tended to increase glomerular filtration rate, filtered sodium load and net tubular reabsorption of sodium. However, there were no significant differences in these parameters compared with control group. Fractional sodium excretion was increased significantly by ANP. Plasma renin activity (PRA) was suppressed only at 30min after the infusion of ANP, while a significant fall in plasma aldosterone concentration (PAC) lasted even in the recovery period. These results indicate that ANP produces a diuresis and natriuresis through the increased RBF in anesthetized rabbits. It is also suggested that ANP suppresses PAC independent of the inhibition of PRA.
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The Effects of Atrial Natriuretic Peptide on Renal Function and the Renin-Aldosterone System in Anesthetized Rabbits. Tohoku J. exp. Med., 1987, 152 (3), 301-310 To determine the effects of α-human atrial natriuretic peptide (ANP) on renal function and the renin-aldosterone system in anesthetized rabbits, ANP (0.05μg/kg/min) or 5% dextrose solution in vehicle control was infused intravenously. The infusion ofANP resulted in a significant decrease in mean arterial pressure with an increase in renal blood flow (RBF). ANP also produced significant increases in urine volume and urinary sodium excretion. ANP tended to increase glomerular filtration rate, filtered sodium load and net tubular reabsorption of sodium. However, there were no significant differences in these parameters compared with control group. Fractional sodium excretion was increased significantly by ANP. Plasma renin activity (PRA) was suppressed only at 30min after the infusion of ANP, while a significant fall in plasma aldosterone concentration (PAC) lasted even in the recovery period. These results indicate that ANP produces a diuresis and natriuresis through the increased RBF in anesthetized rabbits. 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Exp. Med.</addtitle><description>NUSHIRO, N., ABE, K., SEINO, M., ITOH, S. and YOSHINAGA, K. The Effects of Atrial Natriuretic Peptide on Renal Function and the Renin-Aldosterone System in Anesthetized Rabbits. Tohoku J. exp. Med., 1987, 152 (3), 301-310 To determine the effects of α-human atrial natriuretic peptide (ANP) on renal function and the renin-aldosterone system in anesthetized rabbits, ANP (0.05μg/kg/min) or 5% dextrose solution in vehicle control was infused intravenously. The infusion ofANP resulted in a significant decrease in mean arterial pressure with an increase in renal blood flow (RBF). ANP also produced significant increases in urine volume and urinary sodium excretion. ANP tended to increase glomerular filtration rate, filtered sodium load and net tubular reabsorption of sodium. However, there were no significant differences in these parameters compared with control group. Fractional sodium excretion was increased significantly by ANP. Plasma renin activity (PRA) was suppressed only at 30min after the infusion of ANP, while a significant fall in plasma aldosterone concentration (PAC) lasted even in the recovery period. These results indicate that ANP produces a diuresis and natriuresis through the increased RBF in anesthetized rabbits. 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However, there were no significant differences in these parameters compared with control group. Fractional sodium excretion was increased significantly by ANP. Plasma renin activity (PRA) was suppressed only at 30min after the infusion of ANP, while a significant fall in plasma aldosterone concentration (PAC) lasted even in the recovery period. These results indicate that ANP produces a diuresis and natriuresis through the increased RBF in anesthetized rabbits. It is also suggested that ANP suppresses PAC independent of the inhibition of PRA.</abstract><cop>Japan</cop><pub>Tohoku University Medical Press</pub><pmid>2958960</pmid><doi>10.1620/tjem.152.301</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; Open Access Titles of Japan
subjects Aldosterone - blood
Animals
Atrial Natriuretic Factor - pharmacology
atrial natriuretic peptide
Blood Pressure - drug effects
Diuresis - drug effects
Female
Glomerular Filtration Rate - drug effects
Kidney - blood supply
Kidney - drug effects
Kidney - physiology
natriuresis
Natriuresis - drug effects
Rabbits
Renal Circulation - drug effects
renal hemodynamics
Renin - blood
Renin-Angiotensin System - drug effects
renin-angiotensin-aldosterone system
Urine
Vascular Resistance - drug effects
title The Effects of Atrial Natriuretic Peptide on Renal Function and the Renin-Aldosterone System in Anesthetized Rabbits
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