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2例疑似中链酰基辅酶A脱氢酶缺乏症新生儿及其父母外周血基因检测结果分析 被引量:2

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摘要 目的分析2例疑似中链酰基辅酶A脱氢酶缺乏症(MCADD)新生儿及其父母外周血基因突变检测结果.方法2例新生儿,采集足跟血采用串联质谱检测技术检测足跟血中链脂肪酸(氨基酸、有机酸和肉碱),进行遗传代谢病筛查.采集2例新生儿及其父母外周血进行高通量、Sanger测序,分析其基因突变情况.结果2例新生儿均存在足跟血中链脂肪酸异常,其中链酰基肉碱C6~C10均升高,其中辛酰肉碱C8升高尤为明显,外周血辛酰基肉碱水平分别为2.34、2.95μmol/L,C8/C10比值分别为8.67、7.02.患儿1存在ACADM基因11号外显子c.1040G>T位点纯合突变;患儿1父母均为ACADM基因11号外显子c.1040G>T杂合突变.患儿2存在ACADM基因5号内含子c.387+1 del G和7号外显子c.587G>A位点复合杂合突变;患儿2父亲可见ACADM基因7号外显子c.587G>A突变,未见5号内含子c.387+1 del G突变;患儿2母亲可见ACADM基因5号内含子c.387+1 del G突变,未见7号外显子c.587G>A突变.2例患儿均确诊MCADD.结论2例MCADD患儿存在足跟血中链脂肪酸异常,其中C6~C10升高,C8升高更明显,均确诊MCADD.2例MCADD患儿的发病与ACADM基因有关,并遗传自父母.
出处 《山东医药》 CAS 2019年第27期71-73,共3页 Shandong Medical Journal
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