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肝特异性维生素D受体下调减轻了与衰老相关的代谢功能障碍相关的脂肪性肝病
Feng Zhu1, Bing-Ru Lin2, Shi-Hua Lin1
1Department of Geriatrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China.
World journal of gastroenterology
|April 18, 2025
概括
衰老会加剧肝脏肥胖症,这种疾病被称为代谢功能障碍相关的肥胖性肝病 (MASLD). 准维生素D受体 (VDR) 在治疗与衰老相关的MASLD方面显示出有前途.
科学领域:
- 老年学是一门学科.
- 肝病学 肝病学是一种肝病学.
- 分子生物学分子生物学
背景情况:
- 代谢功能障碍相关的肥胖性肝病 (MASLD) 的特征是肝细胞中脂肪的异常积累.
- MASLD的患病率随着年龄的增长而增加,这表明衰老和肝脏疾病之间存在联系.
- 维生素D受体 (VDR) 可能参与MASLD的进展.
研究的目的:
- 为了研究衰老和MASLD之间的关系.
- 探索VDR在与衰老相关的MASLD中的作用和机制.
主要方法:
- 建立了细胞衰老和老化的老鼠模型.
- 检查了老老鼠肝脏中的VDR表达变化.
- 在老化模型中使用了VDR倒置和维生素D补充.
主要成果:
- 在细胞和小鼠模型中,衰老加剧了肝硬化症.
- 肝脏VDR表达随着年龄的增长而增加.
- 在老化模型中,VDR knockdown缓解了肥胖症,而在老化小鼠中,VD补充剂加重了细胞,但没有老化小鼠.
结论:
- 衰老有助于增加肝硬化症.
- 肝脏VDR在与衰老相关的MASLD中起作用.
- VDR代表了与衰老相关的MASLD的潜在治疗标.
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