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在遗传性跨甲基氨基化症中的Gly103Arg变体
Yihan Xiong1, Gongcheng Qu2, Xiaoyu Lu3
1The Second Clinical Medical College, Jinan University, Shenzhen, China.
Frontiers in neurology
|September 24, 2024
概括
在中国,遗传性转基因氨基粉症 (ATTRv) 的Gly103Arg变体普遍存在,主要导致早期视力问题和神经病变. 通过腹部脂肪活检等方法进行早期诊断对于这种独特的遗传变异至关重要.
科学领域:
- 遗传学 是一个遗传学.
- 神经学 神经学
- 眼科医生 眼科 眼科
背景情况:
- 遗传性转基因氨基粉症 (ATTRv) 是一种全身性疾病,影响神经,心脏,眼睛和脏.
- 全球存在140多种TTR基因变异,其中Gly103Arg是中国独有的.
- 这种Gly103Arg变异呈现出早期出现的眼睛问题,使诊断复杂化.
研究的目的:
- 为了研究遗传性转基因氨基粉症中的Gly103Arg变异的临床特征.
- 分析这种特定的ATTRv变异的表现和进展.
- 为改善中国ATTRv.患者的诊断策略.
主要方法:
- 通过TTR基因测序识别了四代家族中的三名患者和一名携带者.
- 在试验仪上进行腰部穿刺,肌电图和腹部脂肪活检.
- 为临床数据分析进行了Gly103Arg变异病例报告的文献审查.
主要成果:
- 分析了44名患者的数据 (41名来自文献,3名来自案例研究).
- 发病时的平均年龄为39.1岁,女性比例为52.3%,主要在中国南部.
- 常见症状包括视力模糊和玻璃体不透明;神经病变发生在17例,自主神经病变发生在6例,心脏病发生在3例. 没有死亡报告.
结论:
- 该Gly103Arg变种是中国人群中唯一的,主要影响南方地区.
- 主要表现是视力模糊,玻璃性不透明和神经病变;心脏病变很少见.
- 在CIDP患者中考虑ATTRv对治疗无反应;腹部脂肪活检是一种可靠的诊断工具.
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