维生素D - - 一个有效的抗氧化剂在动物模型的渐进性多发性硬化症
Michaela Tanja Haindl1, Muammer Üçal2, Willibald Wonisch3
1Department of Neurology, Medical University of Graz, 8036 Graz, Austria.
Nutrients
|August 12, 2023
概括
维生素D补充剂可以减少皮质病理和氧化应激在渐进性多发性硬化症 (MS) 的老鼠模型. 这表明维生素D (VD) 可能会在晚期多发性硬化症中保护神经退行和神经轴突损伤.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 维生素D (VD) 与多发性硬化症 (MS) 发病和进展有关,低血清水平与疾病活性相关.
- 与复发性复发性MS相比,关于VD在进展性MS和皮质病理中的作用的研究是有限的.
研究的目的:
- 研究VD补充剂对皮层病理,氧化应激和神经丝光链 (NfL) 水平在渐进性MS的老鼠模型中的影响.
- 评估静脉疾病对脱髓化,微质激活,细胞亡,神经元存活率和氧化损伤标志物的影响.
主要方法:
- 利用皮层炎症性脱髓化的老鼠模型,给一个组 (VD+) 输入VD (400 IU/周),给另一个组 (VD-),输入标准食物.
- 使用免疫组织化学来评估脑组织的脱髓化,微质激活,亡,神经元,神经纤维和星球细胞.
- 测量了血清NfL水平,氧化脂质标记物,保护性多 (PP) 和总抗氧化能力 (TAC).
主要成果:
- 与VD-动物相比,VD+动物表现出减少的髓损失,微质激活和亡,神经元存活率增加.
- VD+组的血清NfL水平显著降低,TAC更高,PP更多.
- 补充导致氧化脂质标记物显著减少,表明氧化应激减少.
结论:
- 维生素D补充剂在这种进展性多发性硬化症动物模型中显示出对皮层病理的保护作用,可能是通过减轻氧化应激.
- 静脉血管增强了复髓化,并预防了神经轴突和氧化损伤,包括脱髓化和神经退行.
- 需要进一步的研究来确定最佳的VD剂量,以避免潜在的过量服用.
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