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Transcription Start Site Mapping Using Super-low Input Carrier-CAGE
Published on: June 26, 2019
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在一个无意义的 p.Trp230* 变体中的高载波频率
Nina Makretskaya1, Natalia Kalinchenko2, Inna Tebieva3
1Department of Genetics of Endocrine Diseases, Research Centre for Medical Genetics, Moscow, Russia.
Frontiers in endocrinology
|June 5, 2023
概括
该p.Trp230*变体是奥塞梯人群中先天性上腺增生症 (CAH) 的常见原因,可能是由于创始人效应. 这项研究确定了北奥塞梯-阿拉尼亚地区这种CAH引起变异的载体率和频率.
科学领域:
- 遗传学 是一个遗传学.
- 内分泌学 在内分泌学.
- 人口健康 人口健康
背景情况:
- 由于3β-HSD缺乏症导致的先天性上腺增生症 (CAH) 是一种罕见的自带递归性疾病.
- 一种特定的单核酸变体 (SNV),p.Trp230*,此前已被确定为奥塞梯人口中CAH的常见原因.
研究的目的:
- 确定奥塞梯人群中HSD3B2基因中的p.Trp230*变异的等位基因频率和载体率.
- 估计北奥塞梯-阿拉尼亚地区由这种变种引起的CAH的流行率.
主要方法:
- 使用实时PCR进行NM_000198.3:c.690G>A p.Trp230*变异的基因型鉴定.
- 对339名健康的奥塞梯裔个人进行了分析.
- 使用WinPepi软件计算等位基因频率和置信区间.
主要成果:
- 在339个个体中发现了c.690G>A变异的8个异合体载体,其载体率为2.36%.
- 这种p.Trp230*变体的总代基因频率为0.0118.8.
- 在奥塞梯人群中,由这种变体引起的CAH的估计频率为1:7183 (每10万人口中13.9).
结论:
- 在奥塞梯人群中,p.Trp230*变种非常常见.
- 这种高频率很可能归因于该群体内的创始人效应.
- 这些发现强调了在特定族群中对CAH的基因查的重要性.
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