【摘要】目的:雄激素受体(AR)基因外显子1区基因片断CAG多态性与男性冠心病(CAD)及其危险因素的关系。方法:125例冠脉造影证实的男性冠心病人均接受检查,CAD严重程度采用冠脉狭窄≥50的支数(0,3),分别计算心肌梗塞栓塞(TIMI)危险积分,外周血AR转录激活区CAG重复序列的长度采用PCR法测定。结果:CAG重复长度为13,30次,CAG重复≥24次者为长AR基因组,<24次者为短AR基因组。与长AR基因组比较:AR基因组患者具有较低的平均体重指数短(BMI)(t31024,01005)P和较低水平的高密度脂蛋白(HDL)(t21610,01010)P;短AR基因组出现明显冠脉狭窄的可能性较大(x24182,P01028),TIMI危险积分较高(MW检验,z21644,P01008)。Spearma
相关分析表明,AR基因CAG长度和TIMI危险积分显著负相关(r01230,P01010),这种相关性独立于年龄、BMI、LDL、UA和HDL之外(偏相关系数r01250,P01006)。结论:具有短AR基因者与更加严重的冠心病相关,提示CAG多态性与男性CAD病情发展相关,AR表达增多,雄激素敏感性增高可能是男性CAD发病率较高的原因之一。【关键词】受体,雄激素;基因;冠状动脉疾病Correlatio
betwee
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eseJour
alofCardiovascularRehabilitatio
Medici
e,2007,16(4):331Abstract:Objective:Toi
vestigatethecorrelatio
betwee
thea
droge
receptorge
eCAGpolymorphismi
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1domai
a
dtheseverityofcoro
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umberofCAGrepeati
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125malepatie
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umber(0,3)ofcoro
aryvesselswith>50reductio
i
lu2mi
aldiameter,thrombosisi
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farctio
(TIMI)theriskscoreofeachwascalculatedResults:Thelo
2gerARwasdefi
edasCAGrepeat
umber≥24times,accordi
gly,shorterwas<24timesThemea
bodymassi
dexthe(BMI)wassig
ifica
tlylower(t31024,P01005),theHDLlevelwasalsosig
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tswithshortARtha
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withlo
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withlo
gAR(x24182,P01028)TheTIMIriskscoreoflo
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