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ID:34224016
大小:2.35 MB
页数:39页
时间:2019-03-04
《中国北方汉族人群维生素d受体基因多态性与帕金森病的相关性研究》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、摘要目的:帕金森病(Parkinson’sdisease,PD)是一种常见于中老年人的神经系统退行性疾病,其病因非常复杂。近年来,维生素D作为一种神经保护因子,其在帕金森病的发病过程中所起作用受到越来越多的关注,本文旨在探讨维生素D受体(Ⅵ)R)基因BsmIG/A及FokICfF酶切位点多态性与帕金森病(PD)遗传易感性的关系。方法:采用聚合酶链反应一限制性片段长度多态性(PCR-RFLP)技术和基因测序方法,检测260例中国汉族散发PD患者与282例正常对照VDR基因BsmIG/A及FokIC/T位点多态性,并分析其基因型频率和等位基因频
2、率在两组间的分布差异。结果:BsmIG/,A多态位点的基因型与等位基因频率在PD组和正常对照组中的分布差异均无显著性(P>O.05)。FokIC/T酶切位点的基因型在两组中分布差异有显著性(P=0.016),PD组中FokICC/CT基因型频率和FokIC等位基因频率显著高于正常对照组(91.5%比83.3%,P=0.004;67.7%比61.0%,P=0.023)。经发病年龄分组后,早发PD组(发病年龄<50岁)中FokICC/CT基因型频率(97.7%)高于正常对照组(83.8%),且差异有显著性(p--0.010);而晚发PD组(发病
3、年龄>50岁)中FokIC等位基因频率(67.6%)高于正常对照组(61.0%),差异亦有显著性(P=0.033)。结论:研究证实中国汉族人VDR基因BsmIG/A多态与散发PD遗传易感性关系不大,而VDR基因FokIC/T酶切位点多态性很可能是中国散发PD的危险因素。硕士研究生:韩殉(神经病学)指导教师-谢安木教授关键词:维生素D受体:帕金森病:单核苷酸多态性AbstractIMIIlUllIlllllllllllllllllIllllY2338366VitaminDplaysarlimportantroleinneurodegenera
4、tivedisordersasacrucialneuro—imrnunomodulator,andaccumulatingdatahaveprovidedevidenceforthatvitaminDreceptorⅣDR)geneisacandidategeneforsusceptibilitytoParkinson’Sdisease(PD).Inthisstudy,weperformedacase—controlstudytodemonstratewhethertheriskforthedevelopmentofonsetofspora
5、dicPDmightbeinfluencedbyVDRgenepolymorphismsinaChinesecohort.TwohundredandsixtyPDpatientsand282matched-healthycontrolsweregenotypedfortworepresentativesinglenucleotidepolymorphisms(SNPs)inVDRgene(FoldC/TandBsmIG/A)bypolymerasechainreactionandrestrictionfragmentlengthpolymo
6、rphism(PCR-RFLP)analysis.ResultsfromourstudyrevealedthatFokICallelecarrierswerelikelytoassociatewithanincreasedriskofPD(e=-0.004)aswellasearly—onsetPD(EOPD)(e--o.010).Moreover,thefrequencyofFokICalleleWassignificantlyincreasedinPDgroupandlate—onsetPD(LOPD)grouprelativetoth
7、econtrolgroupsrespectively(e---0.023andP=0.033,respectively).ForBsmIpolymorphisms,nosignificantdifferenceingenotypeoralleledistributionWasfoundbetweenPDpatientsandthecontrols,aswellasgender-andage—relateddifferencesbetweenPDpatientsandthecontrolssubgroup.Thisstudydemonstra
8、tedapossibleassociationbetweentheVDRFokIT/CpolymorphismandPD,indicatingthatVDRpolymorphis
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