捐赠者和接受者遗传学:对移植后糖尿病的发展的影响
Oren Shaked1, Bao-Li Loza1, Kim M Olthoff1
1Department of Surgery, Penn Transplant Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
概括
捐赠者遗传学显著影响移植后糖尿病 (PTDM) 风险在接受者具有低遗传倾向. 受理者对PTDM的遗传风险与胰岛素分泌有关,而捐赠者的遗传影响胰岛素敏感性.
科学领域:
- 遗传学 是一个遗传学.
- 移植 移植 移植 移植
- 内分泌学 在内分泌学.
背景情况:
- 移植后糖尿病 (PTDM) 是肝移植后的一个常见并发症.
- PTDM与心脏代谢风险的增加有关.
- 了解对PTDM的遗传贡献对于改善患者的治疗结果至关重要.
研究的目的:
- 调查捐赠者和接受者的遗传因素对PTDM发展的影响.
- 探索PTDM中与胰岛素分泌和敏感性相关的遗传途径的作用.
- 评估PTDM多基因风险评分 (PRS) 的预测价值.
主要方法:
- 研究了一组1115名肝移植接受者及其没有先前存在2型糖尿病 (T2D) 的捐赠者.
- 对T2D,胰岛素分泌和胰岛素敏感性的多基因风险评分 (PRS) 计算了接收者和捐赠者.
- 进行了统计分析,以确定PRS和PTDM发展之间的关联.
主要成果:
- 受理者对PTDM的遗传风险主要与胰岛素分泌通路有关.
- 具有高T2D-PRS的捐赠肝脏在具有低遗传易感性的接受者中增加了PTDM风险.
- 捐赠者对PTDM的遗传影响与胰岛素敏感性途径有关.
- 接受者和捐赠者PRS独立和集体预测PTDM发病.
结论:
- 肝脏捐赠者和接受者的遗传因素显著影响PTDM风险.
- 接受者的遗传倾向主要影响胰岛素分泌,而捐赠者的遗传影响胰岛素敏感性.
- 在肝移植接受者中,PRS可以作为PTDM发展的有价值预测因素.
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