循环节ADCY3 Ser107Pro 变种弥合了早上难以醒来的困难和肥胖
Cynthia Tchio1,2,3,4, Matthew Maher1,3, Christopher Moth5,6,7
1Center for Genomic Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
iScience
|February 3, 2026
概括
在ADCY3的一个遗传变异影响昼夜偏好和肥胖风险. 这一发现揭示了清醒困难,昼夜节律和代谢健康之间的联系,为干预提供了潜在的目标.
科学领域:
- 遗传学 遗传学 是一个
- 时间生物学 时间生物学
- 代谢健康 代谢健康
背景情况:
- 现代生活方式破坏昼夜节律,导致代谢功能障碍.
- 连接昼夜干扰与代谢疾病的遗传基础尚未完全理解.
研究的目的:
- 识别调节昼夜偏好和脂肪性的遗传变异.
- 阐明将昼夜节律与代谢健康联系起来的分子机制.
主要方法:
- 在英国生物银行参与者 (∼480,000) 中进行全基因组类分析.
- 结构建模和ADCY3.3的转录基因分析.
- 使用小鼠模型进行体内研究.
- 对人类脂肪组织基因表达的分析.
主要成果:
- 在ADCY3 (rs11676272;Ser107Pro) 中的一种错误变异被确定为类调节剂.
- G风险等位基因 (Pro107) 与晚间活动,BMI和脂肪质量增加有关.
- 这种等位基因影响脂肪特异性拼接和表达,可能会破坏ADCY3蛋白质的稳定.
- ADCY3在小鼠脂肪组织中表现出节奏表达,其在人体表达增加后减肥.
结论:
- 一个基因型依赖的,行为可修改的轴将唤醒困难与代谢风险联系起来.
- 这个轴通过涉及ADCY3.3的昼夜和脂肪调节通路运行.
- 研究结果强调ADCY3是昼夜节律,行为和代谢健康之间的相互作用的关键参与者.
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