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1、萬方數(shù)據(jù)氫氣飽和生理鹽水對氧中毒肺損傷的防護(hù)作用’:韓文杰歐敏劉于紅孫強(qiáng)【摘要】目的研究氫氣飽和生理鹽水對于氧中毒肺損傷的防護(hù)作用。方法雄性sp哪e.Dawley大鼠(sD大鼠)48只,按數(shù)字表法隨機(jī)均分為4組:常壓空氣對照組,生理鹽水模型組,氫飽和生理鹽水模型組和氮飽和生理鹽水模型組。除對照組外,其他各組常壓下持續(xù)吸100%醫(yī)用純氧60h,建立慢性氧中毒損傷模型,并在吸氧過程中,分別用重鹽水、氫氣飽和生理鹽水、氮?dú)怙柡蜕睇}水對動物進(jìn)行處理。應(yīng)用胸腔積液、肺含水量和HE染色來觀察慢性氧中毒的損傷程度。檢測肺組織中丙二醛(MDA)、超氧化物歧化酶(s0D)的表達(dá)水平以及
2、DNA損傷指標(biāo)8一羥基脫氧鳥嘌呤(8—0HDG)的變化。結(jié)果與生理鹽水模型組相比,氫氣飽和生理鹽水能更明顯減輕慢性純氧暴露導(dǎo)致的肺損傷,減少胸腔積液和肺水腫,氧化損傷指標(biāo)明顯減輕。然而氮?dú)怙柡蜕睇}水對于肺損傷沒有保護(hù)作用。結(jié)論高濃度氧暴露過程中同時(shí)應(yīng)用氧氣飽和生理鹽水可以減輕氧中毒肺損傷?!娟P(guān)鍵詞】氫氣;急性肺損傷;氧化應(yīng)激;氧中毒№6vee脅ctof鼢tll隋tedhydrog蚰saline仰hyper喇cl岫g塒ury黝Ⅳ耽n和+,0U施n,ⅡU玩一幻ng,S刪。Q缸婚+舭町&恥以凰印婦Z,&斫ngj0D胛8,醌i№~cD嘩,崩,lg口眥矗Dr:Sm7Q施昭,B,
3、舭以:膽P唧@y咖oD.cn【Abs衄lct】objectiveToinvestigatetlleprotectivee訛ctofsan勰tedhydrogen8aline∞船utelunginjur)rinducedbyhyperoxiainrats.M“hodsF0rty-eiglltmaleSDratswere咖domlydiVidedimo4gmups:tlleno珊al8ircommlgmup,thephysiolo舀calsalinegroup,tlle8aturatedhydrogensalinegmup粕dtllesatm砒edIlitrogensali
4、negroup.WitlItlleexceptionoftllecontmlg∞up,tlleanimalsintlIeotllergroupsexposedconti刪ouslytopllremedicaloxygen(02c∞cen的tion>98%)for60htodevel叩thechmllico研g(shù)enpoisoningmodel.Then,tlleaIlimalsweretreated訪tIltllephysiologicalsalirle,tllesaturatedhydrogensaline粕d山esaturatedIlitrogensalineinth
5、epmces8of假ygenexposu弛.SeV鰣tyofacmelunginjuryinducedbyh”吼oxia(HAU)w鵲assessedbythevolumeofpleuraleffusion,watercontent肌dHematoxylinandEosin(HE)staillillg.Malondialdehyde(MDA)aIlddleexpressionofsuperoxid拈edismm躺e(SOD)weremonito弛dforas8essm朗t0foxidativestress,粕dchaIlgesinDNA商dati∞pmduct,8-hy
6、由oxy—desoxygIl叩osim(8—0HDG)werealsomonit伽ed.R囂lll協(xié)Whenaconlp耐sonw鵲madewithtllephysiologicalsalineg咖lp,saturatedhydrogensalinen.e砒mentcollldsi昏lific舭tlyrelievelunginjlll了inducedbychmmcpure∞【)rgene】【posureasindic曲edbyHEstaining,deere∞evolumeofpleurale蚰sion蛐dpIllmonaryedema.MoI.eover,satur砒
7、edhydrogensaIinemj砒memcouJdinhibit“pid明dDNAoxi出吐ion.ExperimentsshowedtIlatsatumtedlli掃rogensalinetreatmemhadnoprotective雒bctonhypero婦clunginjury.oDnclusioⅡsSaturatedhydrogensaline乜e咖entcollldaUevi砒elunginj山了inducedbyhyI'ero娃a.【Keywords】Hydmgen;Acutelunginjury;oxidatives仃e