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《uw液动脉预灌洗对缺血肢体再灌注损伤的影响》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、第34卷第6期中山大学学报(医学科学版)Vo1.34No.62013年11月JOURNALOFSUNYAT—SENUNIVERSITY(MEDICALSCIENCES)NOV.2013UW液动脉预灌洗对缺血肢体再灌注损伤的影响王洪刚,刘小林,李智勇(中山大学1.附属第一医院显微创伤骨科,广东广州510080;2.附属第三医院骨科,广东广州510630)摘要:【目的1评估uw液动脉预灌洗对缺血肢体I/R损伤程度的影响,寻找减轻缺血组织I/R损伤的有效方式。【方法1建立大鼠后肢缺血模型,预灌洗组于肢体恢复血供前,应
2、用uw液预灌洗30min,然后恢复血供;缺血再灌注组不进行预灌洗直接恢复肢体血供.每组8只。通过监测骨骼肌再灌注血流量变化,测定血清CPK、LDH含量及骨骼肌水含量、MDA含量、SOD活性、骨骼肌细胞凋亡情况以及骨骼肌的超微结构改变,来评估骨骼肌的I/R损伤程度。【结果】恢复血供后,I/R组中骨骼肌血流过度灌注明显,峰值为健侧(216±22)%;随后血流量下降明显;UW组中未见过度灌注现象,血流灌注量维持平稳。恢复灌注2h,uw组中血清酶含量较I/R组降低20%~30%(P3、差异无统计学意义(P>0.05)。缺血4h,uw组中骨骼肌水含量、MDA含量和SOD活性与I/R组比较差异有统计学意义(P<0.05),但恢复灌注6h.两组间比较差异无统计学意义(P>0.05)。uw液动脉预灌洗可有效抑制细胞的凋亡,维持骨骼肌超微结构的完整。【结论】uw液动脉预灌洗对减轻缺血肢体I/R损伤是一种可行的治疗方式,但其保护效果仍有待提高。关键词:动脉灌洗;uw液;再灌注损伤;治疗中图分类号:R363文献标志码:A文章编号:1672—3554(2013)06—0856—05WashoutwithUW4、SolutiontoRelieveLimbofIschemia-ReperfusionInjuryWANGHong—gang,LIUXiao—lin,LIZhi—yong(1.DepartmentofOrthopaedicsandMicrosurgery,TheFirstAfiliatedHospital,2.DepartmentofOrthopaedicsandMicrosurgery,TheThirdAfiliatedHospital,SunYat—senUniversity,Guangzhou5100805、,China)Abstract:【Objective】ToassesstheeffectofintraarterialwashoutwithUWsolutionforskeletalmusclepreservationduringischemiaandreperfusion.【Methods】Ischemicratlimbswereperfusedwithuwsolutionfor0.5hbeforereperfusion;controlsreceivednoperfusion.SerumCPKandLDHwe6、remeasuredpre—ischemiaandafterreperfusion(2h,4h,and6h).Musclewatercontent,MDA,andSODwereassessedpre—reperfusionandafter6hreperfusion.Apoptosisanduhrastructureinskeletalmuscleweredetectedafter6hreperfusion.Reperfusionbloodflowwasmonitoredduringreperfusionperi7、od.【Results】IntraarterialwashoutwithUWcouldpreventskeletalmuscleluxuryperfusionoccurring.inhibittheapoptoticnucleiinskeletalmuscle.andpreserveskeletalmuscleuhrastrueturalintegrityafter6hofreperfusion.TheserumlevelsofCPKandLDHinUWgroupweresignificantlowerthan8、thoseinI/Rgroupafter2hofreperfusion.butnodifferencewasobservedbetweenUWgroupandI/Rgroupafter4hand6hofreperfusion.After4hofischemia,thereweresignificantdifferencesinwatercontent,MDA,andSODinskele
3、差异无统计学意义(P>0.05)。缺血4h,uw组中骨骼肌水含量、MDA含量和SOD活性与I/R组比较差异有统计学意义(P<0.05),但恢复灌注6h.两组间比较差异无统计学意义(P>0.05)。uw液动脉预灌洗可有效抑制细胞的凋亡,维持骨骼肌超微结构的完整。【结论】uw液动脉预灌洗对减轻缺血肢体I/R损伤是一种可行的治疗方式,但其保护效果仍有待提高。关键词:动脉灌洗;uw液;再灌注损伤;治疗中图分类号:R363文献标志码:A文章编号:1672—3554(2013)06—0856—05WashoutwithUW
4、SolutiontoRelieveLimbofIschemia-ReperfusionInjuryWANGHong—gang,LIUXiao—lin,LIZhi—yong(1.DepartmentofOrthopaedicsandMicrosurgery,TheFirstAfiliatedHospital,2.DepartmentofOrthopaedicsandMicrosurgery,TheThirdAfiliatedHospital,SunYat—senUniversity,Guangzhou510080
5、,China)Abstract:【Objective】ToassesstheeffectofintraarterialwashoutwithUWsolutionforskeletalmusclepreservationduringischemiaandreperfusion.【Methods】Ischemicratlimbswereperfusedwithuwsolutionfor0.5hbeforereperfusion;controlsreceivednoperfusion.SerumCPKandLDHwe
6、remeasuredpre—ischemiaandafterreperfusion(2h,4h,and6h).Musclewatercontent,MDA,andSODwereassessedpre—reperfusionandafter6hreperfusion.Apoptosisanduhrastructureinskeletalmuscleweredetectedafter6hreperfusion.Reperfusionbloodflowwasmonitoredduringreperfusionperi
7、od.【Results】IntraarterialwashoutwithUWcouldpreventskeletalmuscleluxuryperfusionoccurring.inhibittheapoptoticnucleiinskeletalmuscle.andpreserveskeletalmuscleuhrastrueturalintegrityafter6hofreperfusion.TheserumlevelsofCPKandLDHinUWgroupweresignificantlowerthan
8、thoseinI/Rgroupafter2hofreperfusion.butnodifferencewasobservedbetweenUWgroupandI/Rgroupafter4hand6hofreperfusion.After4hofischemia,thereweresignificantdifferencesinwatercontent,MDA,andSODinskele
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