在单胞胎双胞胎对中与年龄相关的黄斑变性失调
Fabian Kananen1,2, Jaakko Kaprio3, Ilkka Immonen2
1Department of Ophthalmology, Örebro University Hospital, Örebro, Sweden.
Acta ophthalmologica
|March 26, 2024
概括
与年龄相关的黄斑变性 (AMD) 在单胞胎双胞胎中显示出不一致. 视网膜色素表皮质 (RPE) - 布鲁奇
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 遗传学 是一个
- 老年学是一门学科.
背景情况:
- 与年龄相关的黄斑变性 (AMD) 是老年人视力丧失的主要原因.
- 遗传因素在AMD病变发生过程中的作用是显著的,特别是在单胞胎双胞胎中.
- 了解视网膜的结构变化,特别是视网膜色素上皮质 (RPE) - 布鲁赫膜 (BrM) 综合体,对于AMD研究至关重要.
研究的目的:
- 调查单胞胎双胞胎对中RPE-BrM复合体体积与AMD之间的关联.
- 为了确定单胞胎双胞胎对中的AMD表型的一致性和不一致性率.
- 探索年龄,AMD严重程度和RPE-BrM复合体体积之间的关系.
主要方法:
- 从芬兰双胞胎队列中招募了106名老年双胞胎 (53对).
- 利用数字色底摄影 (CFP) 进行AMD分级 (AREDS分类) 和光谱域光学连贯断层扫描 (OCT) 进行体积分析.
- 使用OrionTM软件计算RPE-BrM复杂体积,根据AREDS分类分析最坏的眼睛.
主要成果:
- 高比例的双胞胎对 (55%) 在AMD分类方面是不一致的.
- 14对 (26%) 的AMD存在不一致 (AREDS 2-4与AREDS 1).
- 多变量分析显示了中期/晚期AMD,年龄和RPE-BrM复合体体积之间的关联. 对于RPE-BrM复合体体积的内对相关性是显著的 (r=0.430,p<0.01).
结论:
- 相当大比例的单胞胎双胞胎对表现出AMD表型的不一致性,这表明非遗传因素发挥了作用.
- RPE-BrM复合体体积与年龄和中期到晚期AMD的存在显著相关.
- 这些发现突出了AMD发展和进展中遗传和环境因素的复杂相互作用.
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