重庆医学
重慶醫學
중경의학
CHONGQING MEDICAL JOURNAL
2014年
8期
943-945,948
,共4页
颅脑损伤%大鼠 ,Wistar%氧化性应激%活性氧
顱腦損傷%大鼠 ,Wistar%氧化性應激%活性氧
로뇌손상%대서 ,Wistar%양화성응격%활성양
craniocerebral injury%rats,Wistar%oxidative,stress%reactive oxygen species
目的:探讨富氢生理盐水对大鼠重度颅脑损伤(STBI)引起的氧化应激的保护作用。方法将60只健康的雄性Wistar大鼠,随机分为假手术组、STBI+生理盐水(NS)组和STBI+富氢生理盐水(HS)组。通过皮质直接打击方法建立大鼠STBI模型。模型建立后5 min内分别给予STBI+NS组和STBI+ HS组大鼠腹腔注射生理盐水和富氢生理盐水进行治疗。分别于手术前,手术后12、24、48 h检测3组动物血浆中丙二醛(MDA)水平、超氧化物歧化酶(SOD)及谷胱甘肽过氧化物酶(GSH-PX)的活性并进行比较分析。结果 STBI+NS组动物血浆MDA水平在术后24 h和48 h明显升高(P<0.05),富氢生理盐水治疗可以显著降低颅脑损伤后MDA的水平(P<0.05)。STBI手术组动物血中的SOD及GSH-PX的活性在颅脑损伤后12 h有所升高,但在颅脑损伤24 h和48 h后显著降低(P<0.05)。富氢生理盐水治疗可以显著增加颅脑损伤后SOD及GSH-PX的活性(P<0.05)。结论富氢生理盐水治疗在某种程度上可通过降低体内氧化应激水平而对大鼠STBI具有保护作用。富氢生理盐水治疗可能是治疗颅脑损伤的更有效治疗策略。
目的:探討富氫生理鹽水對大鼠重度顱腦損傷(STBI)引起的氧化應激的保護作用。方法將60隻健康的雄性Wistar大鼠,隨機分為假手術組、STBI+生理鹽水(NS)組和STBI+富氫生理鹽水(HS)組。通過皮質直接打擊方法建立大鼠STBI模型。模型建立後5 min內分彆給予STBI+NS組和STBI+ HS組大鼠腹腔註射生理鹽水和富氫生理鹽水進行治療。分彆于手術前,手術後12、24、48 h檢測3組動物血漿中丙二醛(MDA)水平、超氧化物歧化酶(SOD)及穀胱甘肽過氧化物酶(GSH-PX)的活性併進行比較分析。結果 STBI+NS組動物血漿MDA水平在術後24 h和48 h明顯升高(P<0.05),富氫生理鹽水治療可以顯著降低顱腦損傷後MDA的水平(P<0.05)。STBI手術組動物血中的SOD及GSH-PX的活性在顱腦損傷後12 h有所升高,但在顱腦損傷24 h和48 h後顯著降低(P<0.05)。富氫生理鹽水治療可以顯著增加顱腦損傷後SOD及GSH-PX的活性(P<0.05)。結論富氫生理鹽水治療在某種程度上可通過降低體內氧化應激水平而對大鼠STBI具有保護作用。富氫生理鹽水治療可能是治療顱腦損傷的更有效治療策略。
목적:탐토부경생리염수대대서중도로뇌손상(STBI)인기적양화응격적보호작용。방법장60지건강적웅성Wistar대서,수궤분위가수술조、STBI+생리염수(NS)조화STBI+부경생리염수(HS)조。통과피질직접타격방법건립대서STBI모형。모형건립후5 min내분별급여STBI+NS조화STBI+ HS조대서복강주사생리염수화부경생리염수진행치료。분별우수술전,수술후12、24、48 h검측3조동물혈장중병이철(MDA)수평、초양화물기화매(SOD)급곡광감태과양화물매(GSH-PX)적활성병진행비교분석。결과 STBI+NS조동물혈장MDA수평재술후24 h화48 h명현승고(P<0.05),부경생리염수치료가이현저강저로뇌손상후MDA적수평(P<0.05)。STBI수술조동물혈중적SOD급GSH-PX적활성재로뇌손상후12 h유소승고,단재로뇌손상24 h화48 h후현저강저(P<0.05)。부경생리염수치료가이현저증가로뇌손상후SOD급GSH-PX적활성(P<0.05)。결론부경생리염수치료재모충정도상가통과강저체내양화응격수평이대대서STBI구유보호작용。부경생리염수치료가능시치료로뇌손상적경유효치료책략。
Objective To investigate the protective effect of hydrogen-rich saline on systemic oxidative stress in rats with severe traumatic brain injury(STBI) .Methods Male Wistar rats(n=60) were divided into three groups randomly :sham group ,STBI+normal saline group ,STBI+ hydrogen-rich saline group .STBI model was induced by controlled cortical impact injury .Hydrogen-rich saline were intraperitoneally administered at 5 min after STBI operation .Plasma malondialdehyde (MDA ) ,Superoxide Dis-mutase(SOD) activity and glutathione peroxidase(GSH-PX) activity were measured before TBI operation ,12 ,24 h and 48 h after TBI operation .Results The level of MDA in STBI group plasma was significantly elevated from 24 h to 48 h after STBI operation (P< 0 .05) .Hydrogen-rich saline treatment significantly attenuated the increase of MDA level in STBI operation animals (P<0 .05) .The activities of SOD and GSH-PX were slightly elevated at 6 h after TBI operation ,but decreased significantly from 24 h to 48 h after STBI operation(P<0 .05) .Hydrogen-rich saline treatment significantly increased the activities of SOD and GSH-PX after STBI operation(P<0 .05) .Conclusion Hydrogen-rich saline could exert a protective effect against STBI via reducing oxidative stress .Molecular hydrogen might be a more effective therapeutic strategy for TBI patients .