未被诊断成年人的表型具有可起诉的OTC和GLA变体
Jessica I Gold1, Sarina Madhavan2,3, Joseph Park4
1Division of Human Genetics, Department of Pediatrics, Children's Hospital of Philadelphia; Philadelphia, PA, USA.
HGG advances
|August 18, 2023
概括
一种基因型第一方法确定了罕见的未被诊断的遗传代谢障碍 (IMD),如法布里病和甲酸转糖酶缺乏症. 这种方法有助于早期检测和改善这些遗传疾病的患者护理.
科学领域:
- 遗传学 是一个遗传学.
- 代谢障碍 代谢障碍 代谢障碍
- 这是生物银行.
背景情况:
- 遗传代谢障碍 (IMD) 具有可变的表达性,使得临床识别具有挑战性.
- 一个基因型优先策略可以主动识别有IMD风险的个体,从而能够及时干预.
- 生物库为人口层面的遗传变异分析提供了宝贵的资源.
研究的目的:
- 通过基因型第一方法确定患有GLA (法布里病) 和OTC (甲酸转糖酶缺乏症) 病原性/可能病原性变异 (PLPVs) 的个体的频率和临床表型.
- 评估一个大型生物库队列中未被诊断的IMD的透率和临床表现.
- 评估基因查对促进IMDs早期诊断和管理的有用性.
主要方法:
- 分析了来自两家医院生物库的57,340名参与者的遗传数据.
- 在GLA和OTC基因中识别具有PLPV的个体.
- 遗传发现与可用的临床表型和病史的相关性.
主要成果:
- 在19100名参与者中,大约有1人在GLA或OTC中患有未被诊断的PLPV.
- 三名患有GLA PLPV的个体表现出法布里病的症状,其中一人患有缺血性中风.
- 三名OTC PLPV患者表现出情绪障碍和偏头痛等慢性症状,尽管没有记录过的超血症.
结论:
- 通过基因型第一方法识别的GLA和OTC变异显示出高透率.
- 对这些IMD基因进行人口查可以促进逐步表型化并改善患者护理.
- 基因型第一方法在识别未被诊断的IMD的个体和指导临床管理方面是有效的.
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