帕金森病风险变体rs9638616与改变的大脑结构和功能无关
Thomas Welton1,2, Thomas Wei Jun Teo1, Ling Ling Chan1,2,3
1National Neuroscience Institute, Singapore.
Journal of Parkinson's disease
|April 19, 2024
概括
帕金森病 (PD) 风险变体rs9638616与白质完整性降低和补充运动区域连接性有关. 这些大脑变化可能解释了这种变体与PD的认知和运动症状的关联.
科学领域:
- 神经成像是一种神经成像.
- 遗传学 遗传学 是一个
- 神经退行性疾病 神经退行性疾病
背景情况:
- 一项全基因组关联研究 (GWAS) 确定了一种变异,rs9638616,与亚洲人群中帕金森病 (PD) 风险相关.
- 这种变体位于WBSCR17/GALNT17附近,这些基因与突触传播和神经元发育有关.
研究的目的:
- 为了研究rs9638616 T等位基因与脑部微观结构和功能的成像衍生测量之间的关联.
- 探索这种变体在帕金森病早期阶段的作用.
主要方法:
- 分析了来自116名早期PD患者和57名中华民族对照的3特斯拉MRI和基因定型数据.
- 进行了voxelwise分析,以评估rs9638616 T等位基因与白质微分异性质 (FA),灰质体积和静止状态功能连接性的关联.
主要成果:
- 在PD患者和对照组中,rs9638616 T等位基因与白质FA显著降低以及补充运动区域 (SMA) 的功能连接性降低有关.
- 这些成像表型调解了rs9638616与数字跨度和运动严重性的关联,表明与临床结果的联系.
结论:
- 一种新的GWAS变异,rs9638616,与突触传播有生物学联系,与白质和SMA功能连接缺陷有关.
- 这些发现为RS9638616如何对PD风险作出贡献提供了病理生理学的见解,并可能有助于未来的风险分层模型.
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