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《不同剂量牛磺酸对大鼠高同型半胱氨酸血症生物学效应的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、江西医学院学报2009年第49卷第1期ActaAcademiaeMedicinaeJiangxi2009,Vol49,No1·33·不同剂量牛磺酸对大鼠高同型半胱氨酸血症生物学效应的影响康婷,郑泽琪(南昌大学第一附属医院心内科,南昌330006)摘要:目的观察牛磺酸对大鼠高同型半胱氨酸血症生物学效应的影响,探讨牛磺酸拮抗高同型半胱氨酸血症生物学效应和防治动脉粥样硬化的作用机制。方法选择4O只雄性Wistar大鼠随机分为4组(每组1O只):对照组、模型组、低剂量牛磺酸组及高剂量牛磺酸组,观察8周,分别
2、检测各组8周末同型半胱氨酸(Hcy)、丙二醛(MDA)、超氧化物歧化酶(SOD)、一氧化氮(NO)、内皮素(ET)的含量。结果对照组Hcy明显低于其它3组(P3、。牛磺酸的干预不能降低同型半胱氨酸的水平,但可改善同型半胱氨酸诱导的血清MDA、ET含量的升高,血清SOD、NO含量的降低,表明牛磺酸可能是通过拮抗同型半胱氨酸的生物学效应保护内皮功能、抗氧化而发挥其防治心血管疾病的作用。关键词:牛磺酸;同型半胱氨酸;脂质过氧化;内皮功能;动物,实验;大鼠中图分类号:R一332文献标识码:A文章编号:1000—2294(2009)01-0033-03TheInfluenceofDifferentC0ncentratiOnofTaurineonBiologicalEf4、fectofHyperhomocysteinemiain.RatsKANGTing,ZHENGZe-qi(DepartmentofCardiovascular,theFirstAffiliatedHospitalofNanchangUniversity,Nanchang330006,China)ABSTRACT:ObjectiveToobservetheinfluenceoftaurineonbiologicaleffectofhyperhomocys—teinemiainratsandtoexpl5、orethepossiblemechanismesthattaurineinhibitsbiologicaleffectofhyperhomocysteinemiaandcontrolsatherosc1erosisinrats.MethodsFortymalewistarratsweredividedrandomlyintothefollowinggroups:controlgroup(n:10),modelgroup(n=10),low—doseTaurinegroup(n=10),high—d6、oseTaurinegroup(n=10).Eightweekslater,thefollowinginde—xeswereexamined:Hcy,MDA,SOD,NO,ET.ResultsHomocysteineofthecontrolgroupwassignificantlylowerthanthoseinalltheothergroupsamongwhichtherearenodifferences(P<0.05).ThecontentofMDAandETinthemodelgroupwas7、significantlyhigherthanthoseinalltheothergroups(P8、gnificantlylowerthanthoseinalltheothergroups(P<0.05).Contrasttolow—doseTaurinegroup,high—doseTaurinegroupenhanceSODhigher(P
3、。牛磺酸的干预不能降低同型半胱氨酸的水平,但可改善同型半胱氨酸诱导的血清MDA、ET含量的升高,血清SOD、NO含量的降低,表明牛磺酸可能是通过拮抗同型半胱氨酸的生物学效应保护内皮功能、抗氧化而发挥其防治心血管疾病的作用。关键词:牛磺酸;同型半胱氨酸;脂质过氧化;内皮功能;动物,实验;大鼠中图分类号:R一332文献标识码:A文章编号:1000—2294(2009)01-0033-03TheInfluenceofDifferentC0ncentratiOnofTaurineonBiologicalEf
4、fectofHyperhomocysteinemiain.RatsKANGTing,ZHENGZe-qi(DepartmentofCardiovascular,theFirstAffiliatedHospitalofNanchangUniversity,Nanchang330006,China)ABSTRACT:ObjectiveToobservetheinfluenceoftaurineonbiologicaleffectofhyperhomocys—teinemiainratsandtoexpl
5、orethepossiblemechanismesthattaurineinhibitsbiologicaleffectofhyperhomocysteinemiaandcontrolsatherosc1erosisinrats.MethodsFortymalewistarratsweredividedrandomlyintothefollowinggroups:controlgroup(n:10),modelgroup(n=10),low—doseTaurinegroup(n=10),high—d
6、oseTaurinegroup(n=10).Eightweekslater,thefollowinginde—xeswereexamined:Hcy,MDA,SOD,NO,ET.ResultsHomocysteineofthecontrolgroupwassignificantlylowerthanthoseinalltheothergroupsamongwhichtherearenodifferences(P<0.05).ThecontentofMDAandETinthemodelgroupwas
7、significantlyhigherthanthoseinalltheothergroups(P8、gnificantlylowerthanthoseinalltheothergroups(P<0.05).Contrasttolow—doseTaurinegroup,high—doseTaurinegroupenhanceSODhigher(P
8、gnificantlylowerthanthoseinalltheothergroups(P<0.05).Contrasttolow—doseTaurinegroup,high—doseTaurinegroupenhanceSODhigher(P
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