1996年7月
Angiotensin II-induced renal responses in anesthetized rabbits: Effects of N(omega-)nitro-L-arginine methyl ester and losartan
EUROPEAN JOURNAL OF PHARMACOLOGY
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- 巻
- 308
- 号
- 2
- 開始ページ
- 165
- 終了ページ
- 171
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/0014-2999(96)00298-1
- 出版者・発行元
- ELSEVIER SCIENCE BV
Intrarenal arterial infusion of angiotensin II (4 ng/kg/min) reduced renal blood flow, glomerular filtration rate and urinary Na+ excretion (UNaV) without affecting fractional Na+ excretion (FENa) in anesthetized rabbits. Losartan (10 mu g/kg/min) abolished these angiotensin II-induced renal responses. The renal blood flow, glomerular filtration rate and UNaV responses were potentiated during intrarenal arterial infusion of N-omega-nitro-L-arginine methyl ester (L-NAME, 10 mu g/kg/min). A high dose of L-NAME (50 mu g/kg/min) also potentiated the renal blood flow and UNaV responses but not the glomerular filtration rate response. Angiotensin II reduced FENa during L-NAME infusion at either dose. In L-NAME-pretreated rabbits, losartan abolished the angiotensin ii-induced renal blood flow and glomerular filtration rate responses, but the reduction in FENa still remained. The present study suggests that in the rabbit kidney (1) nitric oxide attenuates the angiotensin II-induced (angiotensin AT1 receptor-mediated) vasoconstriction and (2) angiotensin II can evoke losartan-resistant tubular Na+ reabsorption, but the tubular action is concealed by nitric oxide.
- リンク情報
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- DOI
- https://doi.org/10.1016/0014-2999(96)00298-1
- CiNii Articles
- http://ci.nii.ac.jp/naid/80009105881
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/8840128
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:A1996UZ61100009&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1016/0014-2999(96)00298-1
- ISSN : 0014-2999
- CiNii Articles ID : 80009105881
- PubMed ID : 8840128
- Web of Science ID : WOS:A1996UZ61100009