在未经选择的基于卫生系统的人群中,基因型首次分析揭示了COL4A5变异的可变表型严重性
McKenzie Zellers1, Kaushal Solanki2, Melissa A Kelly3
1Geisinger Commonwealth School of Medicine, Scranton, PA.
medRxiv : the preprint server for health sciences
|June 17, 2024
概括
这项研究揭示了未经选择的人群中X链接的阿尔波特综合征 (AS) 现象型的更广泛范围,突出了男性和女性病和其他AS特征的基因型特异性风险.
科学领域:
- 遗传学 是一个遗传学.
- 腎臟病學 (nephrology) 是一種醫學.
- 罕见疾病 罕见疾病
背景情况:
- 关于X相关的阿尔波特综合征 (AS) 的知识主要来自对严重病例的研究.
- 未被选择的种群可能会表现出更广泛的AS表型谱.
研究的目的:
- 通过基于基因型的方法,在男性和女性中描述X链接AS的表型谱.
- 为了比较非选择的队列中的AS相关的表型与匹配的对照.
主要方法:
- 利用了来自Geisinger MyCode DiscovEHR研究的数据,这是一个未经选择的基于卫生系统的队列.
- 采用外基因组测序和电子健康记录来识别具有致病性或可能致病性COL4A5变体的患者.
- 将受影响的个体与基于社会人口统计学,糖尿病和遭遇年份的对照进行匹配.
主要成果:
- 鉴定了29名男性和55名女性患有COL4A5致病/可能致病变体,包括低形态的p.Gly624Asp变体.
- 与对照组相比,非p.Gly624Asp变种的透率更高 (男性94%,女性85%) 与p.Gly624Asp (男性77%,女性69%) 相比.
- 在患有致病性/可能致病性变体 (44%) 的男性中发现末期病 (ESKD) 的风险增加,并指出低诊断和低RAAS抑制剂使用.
结论:
- 未选择的队列显示风险增加和AS表型的范围比以前描述的更广泛,具有基因型依赖的变异性.
- 早期遗传诊断可能对改善阿尔波特综合征的结果至关重要.
- 需要进一步的研究来优化管理策略,包括查和治疗.
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