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ID:9506274
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页数:11页
时间:2018-05-01
《电针调控大鼠胃酸分泌的机制》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、电针调控大鼠胃酸分泌的机制 摘要:目的探讨电针足三里穴对大鼠胃酸分泌的调控机制.方法75只SD大鼠随机分为5组,在清醒状态下针刺双侧足三里穴,以空白对照、非经非穴作对照,三阴交穴作经穴对照.同步测定胃液量、pH值及胃液酸度,放免法测定血浆、胃液、胃粘膜胃泌素(Gas)和表皮生长因子(EGF)含量,透射电镜观察胃粘膜腺细胞超微结构.结果电针刺激足三里穴后大鼠空腹胃液量明显减少[(0.30±0.11)vs(0.63±0.12)mL,P<0.01],胃液酸度明显降低[(30±3)vs(41±1)mmolL-1,P<0.05],胃液pH升高
2、.胃粘膜Gas含量增多[(136±17)vs(73±4)ngL-1,P<0.01],血浆Gas含量下降[(84±22)vs(108±30)ngg-1,P<0.01],胃液Gas无变化;胃液及胃粘膜EGF含量显著升高[(3.2±1.1)vs(1.8±0.4)μgL-1和(5.1±0.8)vs(2.4±0.4)μgg-1,P<0.01],血浆EGF无变化.胃壁细胞泌酸小管不扩张,小管泡充盈不足,且数量不减少,非经非穴组及空白对照组各项指标无显著变化.结论电针足三里穴抑制大鼠胃G细胞Gas释放,降低血浆Gas,增加胃粘膜、胃液EGF含
3、量;电针足三里可改变胃壁细胞超微结构,抑制胃壁细胞泌酸小管功能、降低胃酸分泌. Keyones Abstract:AIMToinvestigatetheregulativemechanismofelectroacupunture(EA)ongastricacidsecretioninrats.METHODSSDrats(n=75)izedinto5groups:Controlgroup,non-pointgroup,Sanyinjiaogroup,zasanligroup,andunitegroup.Allratsinconsciousnes
4、sulatedbyelectroacupunctureexceptcontrolgroup.eanmunoassayalgrouthfactor(EGF)inplasma,gastricjuiceandgastricmucosatis-sue.Cellularultra-microstructureofgastricmucosacoatissionelectronmicroscope.RESULTSAfterEA,iteofthefastinggastricjuicesignificantlyreduced(0.30±0.11)vs(0.63±0
5、.12)mL,P<0.01,andtheacidityofthegastricjuicesignificantlydropped(30±3)vs(41±1)mmolL-1,P<0.05,andthepHofgastricjuicerose.EAstimulationofzusanliledtoadropofplasmicGas(84±22)vs(108±30)ngL-1,P<0.01,ariseofGasingastricmucouscoats(136±17)vs(73±4)ngg-1,P<0.01,butlittlech
6、angeinGasingastricjuice.Besides,thereeotherchangesob-served.EGFofbothgastricjuiceandgastricmucouscoatin-creased(3.2±1.1)vs(1.8±0.4)μgg-1,P<0.01,and(5.1±0.8)vs(2.4±0.4)μgg-1,P<0.01respectivelyicEGFdidn’tchange,ber.Theaboveindexesinnon-pointgroupthoseofcontrolgroup(P<0
7、.05).CONCLUSIONEAstimulationofzusanlicaninhibitGasrelease,reduceGascontentsinplasmaandgastricjuice,enhancecontentsofEGFingastricmucosaandjuice,changeultra-microstructureofgastricglandcells,andinhibitthese-cretoryfunctionofacinotubulesinparitetalcell.Finaly,Thegastricacidsecre
8、tionisdecreased. 0引言 中医认为,经络内属脏腑、外络肢节,胃与脾互为表里,相互影响,针刺经络腧穴,可激发内源性生理
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