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时间:2020-04-27
《大鼠股骨骨折合并脑外伤时HIF -1α及 Cbfα1的血清表达及意义-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、桔床和实验医学毒志2014年5月第13卷第9期·689·DOI:10.3969/j.issn.1671-4695.2014.09.001文章编号:1671-4695(2014)09—0689—04大鼠股骨骨折合并脑外伤时HIF—loL及Cbfotl的血清表达及意义徐林柏小金骆旭东黄文良马立坤郭元(遵义医学院第三附属医院骨科贵州遵义563002)【摘要】目的探讨大鼠股骨骨折合并脑外伤时低氧诱导因子一la(HIF—la)及核心结合因子etl(Cbfet1)在血清中的表达及意义。方法选用7O只3月龄健康sD大鼠,随机分为假手术组(A组),股骨骨折组(B组),脑外伤组(c组)和骨折合
2、并脑外伤组(D组),分别进行造模。造模术后24h取c、D组脑组织行苏木素一伊红染色判断脑外伤程度。1d、3d、l周、2周、3周、4周、5周通过酶联免疫吸附法(ELISA)检测各组HIF—let及cb缸1的血清表达。结果B、c、D组内不同时间段HIF一1of.及Cbfetl表达比较,差异有显著性(P<0.05);同一时间段B、c、D组表达均明显高于A组,D组高于B、c两组,差异均有显著性(P<0.05)。结论HIF—let及cbfal在大鼠骨折和脑外伤后均有较明显的表达,在骨折合并脑外伤后表达更加突出,这可能是造成脑外伤后加速骨折愈合的重要因素之一。【关键词】大鼠股骨骨折脑外伤
3、HIF—letCbfetl酶联免疫吸附法TheexpressionandsignificanceofserumHIF一1etandCbfalinrats埘thfemoralllract.1reandbraininjury.XULin,BAIXiao一伽,LUOXu一幽增,eta1.DepartmentofOrthopaedics,ThirdAffiliatedHospitalofZunyiMedicalCollege,ZunyiGuizhou563002,China.【Abstract】ObjectiveToinvestigatetheexpressionandsignifi
4、canceofhypoxiainduciblefactor1alpha(HIF—let)andcorebindingfactoralpha1(Cbfa1)inratswithfemoralfractureandtraumaticbraininjuryinrats.Me~odsSeventySDrats(threemonthsold)weredivid—edintoshamoperationgroup(groupA),femoralfracturegroup(groupB),traumaticbraininjurygroup(groupC)andfracturewithbrai
5、ninjurygroup(groupD).Twen~一fourhoursaftermodelestablishment,braintissueofgroupCandDweresampledandHEstainedtodeterminethede-greeofbraintrauma.SerumlevelsofHIF一1etandCbfa1weredetectedbyELISAonday1,day3andatweek1,2,3,4,and5aftermodelestalishment.ResultsThereweresignificantd迁[erencesintheexpres
6、sionsofHIF—loLandCbfoL1indiferenttimepointsingroupB.CandDgroups(P7、atsafterfractureandbraininjury.andtheexpressionsamoreprominentinratswithfracturecombinedwi山traumaticbraininjury;whichmaybeoneoftheimportantfactorsofacceleratedfracturehealingaftertraumaticbraini~ury.【Keywords】Rats;Femoralfracture;Traumaticbraininjury;HIF
7、atsafterfractureandbraininjury.andtheexpressionsamoreprominentinratswithfracturecombinedwi山traumaticbraininjury;whichmaybeoneoftheimportantfactorsofacceleratedfracturehealingaftertraumaticbraini~ury.【Keywords】Rats;Femoralfracture;Traumaticbraininjury;HIF
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