巴西高氏病患者的GBA1变异
Suelen Porto Basgalupp1,2, Vivian Altmann2, Filippo Pinto E Vairo3
1Hospital Moinhos de Vento, Porto Alegre, RS, Brazil.
Molecular genetics and metabolism reports
|December 6, 2023
概括
巴西Gaucher病 (GD) 遗传特征显示N370S是最常见的GBA1等位基因. 针对巴西GD患者,建议对外显子9和10进行向分析.
科学领域:
- 遗传学 是一个遗传学.
- 生物化学 生化学
- 罕见疾病 罕见疾病
背景情况:
- 氏病 (Gaucher disease,GD) 是一种遗传性代谢障碍.
- 它源于GBA1基因的突变,导致葡萄糖大脑酶酶 (GCase) 酶活性不足.
- 巴西GD患者的遗传数据有限.
研究的目的:
- 为了基因鉴定72名非亲属的巴西戈希氏病患者.
- 为了确定巴西普遍存在的GBA1变体和基因型.
- 为巴西GD患者提出一个有针对性的基因分析策略.
主要方法:
- 72名巴西GD患者 (63名I型,4名II型,5名III型) 的基因组DNA分析.
- 通过桑格或大规模并行测序分析的GBA1基因外体和侧边内体.
- 致病变体的识别和表征.
主要成果:
- 确定了31种致病性GBA1变体.
- 最常见的是N370S等位基因 (41.0%),其次是N370S/RecNciI基因型 (23.6%).
- 异构9和10变体 (N370S,RecnciI,L444P) 占了相当一部分的等位基因.
结论:
- N370S等位基因是巴西高氏病患者中占主导地位的GBA1变异.
- 一步一步的基因分析,专注于GBA1外因子9和10,是巴西GD诊断的可行策略.
- 确定了两种新的GBA1变异,扩大了对高氏病的已知突变谱.
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