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遗传性肾炎一家系临床病理及候选基因突变分析 被引量:3

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摘要 目的通过对一遗传性肾炎家系进行临床、病理及候选基因突变分析,明确临床诊断、遗传方式及致病基因突变位点,为该家系的临床治疗及遗传咨询提供指导。方法由肾脏专科人员进行家系调查、收集临床资料,对先证者及另2名患者进行肾脏穿刺活检,标本经光镜、电镜及常规免疫荧光、Ⅳ型胶原蛋白间接免疫荧光检测,同时采集先证者外周血分离淋巴细胞,EB病毒转染后提取mRNA,RT-PCR扩增COL4A3、COL4A4基因cDNA,异常片段直接测序,与基因组DNA对比,寻找突变位点。结果该家系临床诊断为X-连锁显性遗传型Alport综合征(AS),病理检查2名男性患者出现基底膜病变,但先证者肾脏病理、Ⅳ型胶原a链及基因检测未发现明显异常。结论该家系可能是尚未认识的新的遗传性肾病类型,或者AS具有遗传异质性,是由于编码肾小球基底膜其它与通透性有关的蛋白质基因突变所致。
出处 《中国优生与遗传杂志》 2009年第12期22-23,7,共3页 Chinese Journal of Birth Health & Heredity
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二级参考文献24

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