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- W2066229796 abstract "To determine whether the renal vascular effect of arginine vasopressin (AVP) is modulated by renal prostaglandin E2 (PGE2) were determined during the infusion of AVP in dogs during control conditions and after the administration of the inhibitor of prostaglandin synthesis, indomethacin. During control conditions, intrarenal administration for 10 min of a dose of AVP calculated to increase arterial renal plasma AVP concentration by 75 pg/ml produced a slight renal vasodilation (p<0.01) and an increase in renal venous plasma concentration of PGE2. Renal venous PGE2 concentration during control and AVP infusion averaged 33 ± 7 and 52 ± 12 pg/ml (p<0.05), respectively. After administration of indomethacin, the same dose of AVP induced renal vasoconstriction (p<0.05) and failed to enhance renal venous PGE2 concentration (9 ± 1 to 8 ± 1 pg/ml). Intrarenal administration of 20 ng/kg. min of AVP for 10 min induced a marked renal vasoconstriction (p<0.01) and increased renal venous plasma PGE2. Renal venous PGE2 during control and AVP infusion averaged 31 ± 10 and 121 ± 31 pg/ml (p<0.01), respectively. Administration of the same dose of AVP following indomethacin produced a significantly greater and longer lasting renal vasoconstriction (p<0.01) and failed to increase renal venous plasma PGE2 (10 ± 1 to 9 ± 1 pg/ml). These results indicate that a concentration of AVP comparable to that observed in several pathophysiological conditions induces a slight renal vasodilation which is mediated by renal prostaglandins. The results also indicate that higher doses of AVP induce renal vasoconstriction and that prostaglandin synthesis induced by AVP attenautes the renal vasoconstriction produced by this peptide." @default.
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- W2066229796 title "Modulation of prostaglandin of the renal vascular action of arginne vasopressin" @default.
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- W2066229796 doi "https://doi.org/10.1016/0090-6980(82)90034-x" @default.
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