血25-基维生素D度与日本发生残疾痴呆症风险之间的关联:一个案例-队列研究
Yukai Lu1, Taiki Yamaji2, Nobufumi Yasuda3
1Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan.
Journal of the neurological sciences
|October 12, 2025
概括
在日本成年人中,高维生素D水平没有显示出对痴呆症的保护作用. 这项研究发现,具有最高维生素D度的老年人患残疾性痴呆的风险更高.
科学领域:
- 老年学是一门学科.
- 神经科学是一个神经科学.
- 营养科学 营养科学
背景情况:
- 以前的研究表明,维生素D具有潜在的神经保护作用.
- 然而,关于维生素D与痴呆风险之间的关联的确证据仍然有限.
研究的目的:
- 调查血25-氧维生素D (25[OH]D) 度与日本成年人致残性痴呆的发病率之间的关联.
- 根据性别和年龄组,探索这种关联的潜在差异.
主要方法:
- 在基于日本公共卫生中心的前性研究中,采用了个案-队列研究设计.
- 测量了血25 ((OH) D水平,并将参与者分为四分之一.
- 通过长期护理保险证书识别了致残性痴呆的事件,并使用加权的Cox比例危险模型进行分析.
主要成果:
- 与最低的四分位数相比,血25(OH) D度的最高四分位数与致残性痴呆的风险增加有关 (HR:1.29;95%CI:1.01-1.66).
- 这种关联在性别之间没有显著差异.
- 在小组分析中,最高四分位数中的老年人 (65-74岁) 显示风险明显增加 (HR: 1.73;95% CI: 1.15-2.60),而中年成人 (45-64岁) 没有发现任何关联.
结论:
- 这项研究没有发现血25(OH) D度对日本成年人痴呆风险的神经保护作用的证据.
- 在较高维生素D水平的老年人中观察到的风险增加需要进一步调查.
- 未来的研究应该包括重复测量维生素D和对特定痴呆症亚型的分析,以验证这些发现.
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