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《当归补血汤对兔动脉粥样硬化模型骨髓内皮祖细胞的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、第34卷第9期2011年9月北京中医药大学学报Vol.34No.9Sep.2011JournalofBeijingUniversityofTraditionalChineseMedicine613*当归补血汤对兔动脉粥样硬化模型骨髓内皮祖细胞的影响#秦臻黄水清(广州中医药大学广东510405)摘要:目的观察当归补血汤对兔动脉粥样硬化(atherosclerosis,As)模型骨髓内皮祖细胞(endothe-lialprogenitorcells,E
2、PCs)的影响,探讨当归补血汤防治As的可能作用机制。方法新西兰大白兔25只,免疫损伤联合高脂饮食法4周后形成As模型,模型动物按体重随机分为5组,每组5只。空白组灌胃等量蒸馏水,辛伐他汀组灌胃辛伐他汀水悬液1.7mg/kg,当归补血汤高、中、低剂量组分别灌胃当归补血汤6、3、1.5g/kg,每日1次,2周后取各组兔骨髓,密度梯度离心法分离单个核细胞,培养7d后将贴壁细胞与Dil标记的乙酰化低密度脂蛋白和FITC标记的荆豆凝集素1共同孵育鉴定EPCs。计算细胞集落形成数,MTT法检测增殖力,黏附实验检测黏附力,transwell小室检测迁移
3、力,体外血管生成试剂盒检测成小管力。结果与空白组比较,当归补血汤高、中剂量组及辛伐他汀组骨髓EPCs集落数及增殖力、黏附力、迁移力、成小管力均提高(P<0.05),低剂量组则无明显变化。结论当归补血汤抗As的作用与促进EPCs数量和活性具有密切的关系。关键词:当归补血汤;内皮祖细胞;动脉粥样硬化;兔中图分类号:R285.5InfluenceofDangGuiBuXueTangonspinalendothelialprogenitor*cellsinrabbitmodelofatherosclerosis#QINZhen,HUANGShui-
4、qing(GuangzhouUniversityofChineseMedicine,Guangdong510405)Abstract:ObjectiveToobservetheinfluenceofDangGuiBuXueTangonspinalendothelialprogenitorcells(EPCs)inrabbitmodelofatherosclerosis,anddiscussthepossiblemechanismofDangGuiBuXueTangintreatingatherosclerosis.MethodsThemod
5、elofatherosclerosiswasestablishedbyusingimmuneinjuryandfattydietfor4weeksinNewZealandrabbits(n=25).Allmodeledrabbitsweredividedinto5groups(eachn=5)accordingtothebodyweight.Theblankgroupwasintragastricallygivendistilledwater,simvastatingroup,aqueoussuspensionofsimvastatin(1
6、.7mg/kg),andhigh-dosegroup(6g/kg),mid-dosegroup(3g/kg)andlow-dosegroup(1.5g/kg),DangGuiBuXueTangonceadayfortwoweeks.Themononuclearcellswereisolatedfromrabbitbonemarrowbyusingdensitygradientcentrifugation,whichwereculturedfor7daysandthenadherentcellswereculturedwithDil-ac-L
7、DLandFITC-UEA-1togetherforidentifyingEPCsandcalculatingthenumberofEPCscolonyforming.TheproliferationandadhesionweredetectedbyusingMTTmethod,adhension,byusingadhensiondetermination,migration,byusingtranswellchambers,andangiogenesis,byusinginvitroangiogenesiskit.ResultsCompa
8、redwiththeblankgroup,thenumberofEPCscolony,prolifera-tion,adhesion,migrationandangiogenes
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