具有未知意义的遗传变异和同时发生的免疫球蛋白A脏病的法布里病
Huan Zhou1, Siqing Wang1, Yilin Chen1
1Division of Nephrology, Department of Medicine, West China Hospital, Sichuan University, Chengdu, China.
Kidney & blood pressure research
|September 30, 2024
概括
诊断具有未知意义的变异 (VUS) 的法布里病 (FD) 是具有挑战性的. 包括活检在内的全面评估将两种GLA变体从VUS重新分类为可能致病的,有助于FD诊断.
科学领域:
- 遗传学 是一个遗传学.
- 罕见疾病 罕见疾病
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 费布里病 (FD) 诊断因未知意义的遗传变异 (VUS) 而复杂化.
- 在患有同时发生免疫球蛋白A脏病 (IgAN) 的患者中调查新型VUS变异可以提高VUS的理解.
- FD表现出异质的临床表现,并且可以与Igan和最小变化疾病 (MCD) 等脏疾病同时发生.
研究的目的:
- 提高对在法布里病 (FD) 中未知意义的遗传变异 (VUS) 的理解.
- 为了评估患有新型VUS变异和并发性免疫球蛋白A脏病 (IgAN) 的患者.
- 通过全面评估,将GLA变异从VUS重新分类为可能致病的.
主要方法:
- 对具有VUS.FD遗传确认的FD患者的回顾性分析.
- 从试验者和家庭成员收集和分析人口统计,临床病理和实验室数据.
- 血统分析和综合评估,包括组织特异性活检,用于变种重新分类.
主要成果:
- 研究了14名试验者和家庭成员,分为VUS (n=5) 和致病/可能致病变体 (n=9) 组.
- 在关键临床参数 (性别,年龄,肌素,eGFR,蛋白尿) 中,两组之间没有显著差异.
- 在所有VUS患者中观察到与骨髓体的IgA沉积;两个GLA变体 (c.479C>A,p.Ala160Asp;c.1032-1058del,p.Ser345_Met353del) 从VUS升级为可能致病的.
结论:
- 综合性评估,特别是组织活检,对于诊断GLA-VUS.US患者的FD至关重要.
- 两种特定的GLA变异被从VUS重新分类为可能致病的,有助于准确的FD诊断.
- FD经常与脏疾病共存,需要彻底的诊断工作.
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