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The Association between Polymorphism of α1-antichymotrypsin Gene and Alzheimer's Disease
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- Author:
- No author available
- Journal Title:
- JOURNAL OF MODERN CLINICAL MEDICAL BIOENGINEERING
- Issue:
- 1
- DOI:
- 10.3760/cma.j.issn.1674-1927.2003.01.005
- Key Word:
- Alzheimer病;α1-抗糜蛋白酶基因;多态性;PCR-RFLP
Abstract： 目的探讨阿尔茨海默病(Alzheimer's disease, AD)患者中的α1-抗糜蛋白酶基因多态性及其与AD的相关性.方法利用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)技术对48例AD患者及89例对照者的α1-抗糜蛋白酶信号肽基因进行分型,进而进行AD与α1-抗糜蛋白酶信号肽基因多态性的相关分析.结果①AD病人α1-抗糜蛋白酶基因中,基因型A/T占27.1%,明显低于对照组的51.7%(p<0.01,RR=0.355),T/T占60.4%,明显高于对照组的37.1%(p<0.01,RR=2.576),A/A占12.5%,与对照组11.2%无明显差异(p>0.05,RR=1.086).②AD病人中α1-抗糜蛋白酶信号肽基因等位基因A的频率为26.0%、相对危险率(RR)为0.594,T的频率为74.0%、RR为1.683与对照组的A为37.1%、T为62.9%差异无显著性意义(p>0.05).结论 AD病人中α1-抗糜蛋白酶信号肽基因基因型T/T(AACT*T/T)频率明显高于正常人,与AD存在正相关;而AACT*A/T频率则明显低于正常人,与AD存在负相关.
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