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补充维生素D可以改善空间记忆,肌肉功能,疼痛评分,并调节维生素D缺乏饮食 (VDD) 诱导的小鼠模型中的不同功能生理生物标志物
Mahendra Kumar Trivedi1, Alice Branton1, Dahryn Trivedi1
1Trivedi Global, Inc, Henderson, NV, USA.
BMC nutrition
|September 25, 2023
概括
维生素D缺乏会对记忆和肌肉功能产生负面影响. 补充维生素D3 (胆醇) 改善了这些功能和认知表现在缺陷的老鼠.
科学领域:
- 内分泌学 在内分泌学.
- 神经科学是一个神经科学.
- 营养科学 营养科学
背景情况:
- 维生素D缺乏是一个全球性流行病,与增加的死亡率有关,并与自身免疫性疾病,高血压和癌症有关.
- 慢性维生素D缺乏会损害认知和身体功能.
- 这项研究研究了维生素D3补充剂对食维生素D3缺乏饮食 (VDD) 的老鼠的影响.
研究的目的:
- 评估慢性维生素D3补充剂对具有维生素D3缺乏饮食的老鼠的药理效应.
- 评估维生素D3对记忆,神经肌肉功能和疼痛感知的影响.
- 分析与维生素D3状态相关的关键荷尔蒙和生物标志物变化.
主要方法:
- 这些老鼠接受了缺乏维生素D3的饮食 (VDD).
- 使用Y迷宫任务评估认知功能;测量肌肉强度和疼痛敏感度.
- 血清和脑脊液 (CSF) 的生物标志物,包括25-OH Vit D3,甲状腺激素 (PTH),C反应蛋白 (CRP),素,克洛托和β-内啡,使用ELISA量化.
- 维生素D受体 (VDR) 表达在肝脏和脂肪组织中被测量.
主要成果:
- 在VDD饮食中的老鼠表现出空间记忆受损和神经肌肉功能下降.
- 维生素D3补充剂显著改善了记忆性能,神经肌肉功能,并减少了疼痛评分.
- 补充导致血清25-OH Vit D3和VDR表达增加,同时降低PTH和CRP水平.
- 在补充维生素D3后,脑液中克洛托和β-内啡的水平显著升高.
结论:
- 慢性维生素D3补充剂有效地扭转了维生素D3缺乏的老鼠的空间记忆缺陷.
- 补充剂使关键生物标志物正常化,包括VDR表达和减少炎症标志物.
- 这些发现表明,维生素D3补充可以成为管理维生素D缺乏及其相关功能障碍的可行策略.
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