塞浦路斯患者患有CblC缺陷的病例系列:临床,生化和分子特征
Theodoros Georgiou1, Olga Grafakou2, Anna Malekkou1
1Biochemical Genetics Department, The Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus.
Molecular genetics and metabolism reports
|November 25, 2024
概括
甲基马龙酸性尿和同胞性尿,CblC类型,是一种维生素B12代谢障碍. 患有这种CblC缺陷的新生儿的早期诊断和治疗显著改善了临床结果.
科学领域:
- 遗传学 遗传学 是一个
- 生物化学 生物化学
- 儿科 儿科 儿科
背景情况:
- 甲基马龙酸性尿和同胞性尿,CblC类型,是一种遗传代谢障碍,影响可巴胺 (维生素B12) 处理.
- *MMACHC*基因的突变是这种CblC缺陷的主要原因.
研究的目的:
- 报告诊断出CblC缺陷的5名塞浦路斯患者的临床,生化和分子发现.
- 研究早期诊断和治疗对*MMACHC*突变患者的临床结果的影响.
主要方法:
- 临床数据的回顾性分析.
- 对代谢标记物的生物化学测定.
- 分子遗传测试用于识别*MMACHC*基因变异.
主要成果:
- 五名塞浦路斯患者 (4名男性,1名女性) 诊断出CblC缺陷,年龄在10天到9个月之间.
- 所有患者都携带了p.Arg91LysfsTer14变异在同卵性或复合异卵性状态与其他*MMACHC*致病变异.
- 一名经过新生儿诊断和治疗的患者,与具有相似基因型的兄弟姐妹相比,显示出改善的临床结果.
结论:
- *MMACHC*基因中的p.Arg91LysfsTer14变异在塞浦路斯的CblC缺陷患者中流行.
- 早期诊断和新生儿干预对于改善CblC类型甲基马龙酸性尿和同胞性尿的临床结果至关重要.
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