对于CCDC201中一个停止增益变体的同卵性导致一次性卵巢缺陷
Asmundur Oddsson1, Valgerdur Steinthorsdottir1, Gudjon R Oskarsson1
1deCODE genetics/Amgen, Inc., Reykjavik, Iceland.
Nature genetics
|August 27, 2024
概括
在CCDC201基因中,一种罕见的遗传变异在同卵性女性中显著提前9年更年期. 这一发现影响了对女性生殖健康的理解,并需要为受影响的个体提供遗传咨询.
科学领域:
- 遗传学 是一个遗传学.
- 生殖生物学 生殖生物学
- 人类进化人类进化
背景情况:
- 更年期的年龄 (AOM) 影响生育能力和疾病风险.
- 全基因组关联研究 (GWAS) 已经确定了AOM位点,主要是使用添加模型.
- 对AOM的衰退性遗传模型尚未得到充分探索.
研究的目的:
- 使用衰退模型研究具有对AOM显著影响的低频基因变异.
- 确定影响女性生殖时间线的新型遗传因素.
主要方法:
- 全基因组关联研究 (GWAS) 的元分析.
- 包括来自冰岛,丹麦,英国 (英国生物银行) 和挪威的174,329名绝经后妇女.
- 专注于衰退的遗传模型来检测具有大影响的变异.
主要成果:
- 在CCDC201基因中,一种同卵性停止增益变异 (rs117316434 A) 与更年期早9年出现有关 (P=1.3×10−15).
- 这种变异在约1%的人口中存在,在每1万北欧妇女中就有1个是同卵性,导致近一半的妇女患有原发性卵巢衰竭.
- 同类动物的孩子较少,最后一次分娩时的年龄较早 (P=3.8×10−5).
- 在2022年确定的CCDC201基因在卵细胞中高度表达.
结论:
- 对CCDC201的功能丧失同胞性对女性生殖健康有深远的影响.
- 这种基因型的个体将受益于生殖咨询和早期更年期症状管理.
- 这一发现强调了在对AOM等复杂特征的遗传研究中考虑衰退模型的重要性.
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