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- W2373044558 abstract "Objective To investigate the potential role and mechanism of hydrogen sulfide(H2S) in regulating arterial baroreflex(ABR) in septic rats.Methods The rat model of cecal ligation and puncture(CLP) induced sepsis was established.Forty-seven male Spargue-Dawley rats were randomly divided into 9 groups: ① Sham operation(SO)+0.9% NaCl(NS) intravenous injection(i.v.) group;② SO+NaHS i.v.group;③ CLP+NaHS i.v.group;④ SO+artificial cerebrospinal fluid(aCSF) bilater nucleus tractus solitarii(NTS) microinjection group;⑤ SO+NaHS bilater NTS microinjection group;⑥ SO+vehicle(DMSO)+NaHS group;⑦ SO+Gli+NaHS group;⑧ CLP+vehicle(DMSO) group;⑨ CLP+Gli group.The ABR function was measured before administration and 5 min and 30 min after administration.Results ① The ABR value of rats at different time in the same group: Compared with the ABR value before administration in the SO+NaHS i.v.group,CLP+NaHS i.v.group,SO+NaHS bilater NTS microinjection group,and SO+vehicle+NaHS group,the ABR values of rats significantly decreased at 5 min and 30 min after administration(P0.05,P0.01),which significantly increased in the CLP+Gli group at 5 min and 30 min after administration(P0.05).② The ABR value of rats at the same time in the different groups: Before administration,the ABR value of rat in the CLP+NaHS i.v.group was significantly lower than that in the SO+NS i.v.group or SO+NaHS i.v.group(P0.05).At 5 min and 30 min after administration,the ABR value of rat in the CLP+NaHS i.v.group was significantly lower than that in the SO+NS i.v.group or SO+NaHS i.v.group(P0.05),which in the SO+NaHS i.v.group or SO+NaHS bilater NTS microinjection group was significantly lower than that in the SO+NS i.v.group or SO+aCSF bilater NTS microinjection group,respectively(P0.05,P0.01),in the SO+Gli+NaHS group or CLP+Gli group was significantly higher than that in the SO+vehicle+NaHS group or CLP+vehicle group,respectively(P0.05).Conclusions H2S plays an adverse role in septic ABR function,and opening KATP channel located at the pathway of ABR,may be the mechanism involved in the down-regulation of ABR function in septic rat.Notably,the NTS may be also responsible for reduction of ABR value." @default.
- W2373044558 created "2016-06-24" @default.
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- W2373044558 date "2011-01-01" @default.
- W2373044558 modified "2023-09-24" @default.
- W2373044558 title "Effect of Hydrogen Sulfide on Arterial Baroreflex in Rat with Sepsis" @default.
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