在印度患者中鉴定了一种与SGCB c.544 T > G突变分离的共享的,常见的哈普洛型,这些患者患有肉糖病症
Shamita Sanga1, Sudipta Chakraborty1,2, Mainak Bardhan3
1National Institute of Biomedical Genomics, P.O: N.S.S, Kalyani, West Bengal, 741251, India.
Scientific reports
|September 12, 2023
概括
在南印度家庭中发现了一种常见的遗传突变,导致一种肌肉发育不良的形式sarcoglycanopathy. 这一发现表明了创始人效应,并强调南印度是选这种特定遗传疾病的关键地区.
科学领域:
- 遗传学 是一个遗传学.
- 神经学 神经学
- 分子生物学分子生物学
背景情况:
- 萨尔科格利卡诺病是最常见的自体逆向四肢-腰带肌肉发育不良.
- 它是由编码β-sarcoglycan蛋白质的SGCB基因突变引起的.
研究的目的:
- 为了研究来自南印度的肉糖病患者的共同遗传标记.
- 为了识别潜在的突变及其遗传模式.
主要方法:
- 在SGCB突变周围使用10个多态标记的哈普洛型重建.
- 分析了来自13个无关南印度家庭的14例肉糖病变病例.
- 与150个使用PLINK1.9.9的无关印度对照进行了比较.
主要成果:
- 在病例中发现一个常见的单元型 (H1) 的频率明显更高.
- 在大多数家族中,SGCB中可能的致病性同卵性突变c.544 T>G (p.Thr182Pro) 与H1共分离.
- 相同的血统分析表明,看似无关的个人之间存在相关性,这表明了创始人效应.
结论:
- 印度南部地区显示,有证据表明,对糖病有创始人效应.
- 建议在该地区进行向突变查,以诊断肉糖病症.
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