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在性结肠炎的炎症驱动维生素A运输功能障碍.

Zhe Zhou1,2,3, Junming Miao1,4, Yang Jing1,4

  • 1Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, 300070 Tianjin, China.

International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition
|September 8, 2025
PubMed
概括
此摘要是机器生成的。

血清视网醇结合蛋白4 (RBP4) 水平在性结肠炎 (UC) 患者中较低,并且随着疾病的严重程度而降低. 这表明,通过炎症抑制RBP4可能会损害UC中的维生素A运输.

关键词:
这是一种炎症炎症炎症炎症.肝肠轴 肝肠轴 肝肠轴 肝肠轴视网醇结合蛋白 4 的结合蛋白.性结肠炎是一种维生素A是一种维生素A.

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科学领域:

  • 免疫学 免疫学 免疫学
  • 营养科学 营养科学
  • 胃肠病学 胃肠病学

背景情况:

  • 视网醇结合蛋白4 (RBP4) 是一种关键的维生素A载体,参与炎症和免疫调节.
  • 在性结肠炎 (UC) 患者中观察到血清维生素A水平较低,但RBP4和维生素A运输机制在UC中的作用尚不清楚.

研究的目的:

  • 调查UC患者血清RBP4水平和维生素A水平之间的关联.
  • 探索UC炎症期间维生素A运输受损的潜在机制.

主要方法:

  • 用ELISA测量了103名UC患者和22名对照者的血清RBP4和维生素A水平.
  • 评估了与疾病严重程度和治疗反应的相关性.
  • 使用DSS诱导性结肠炎小鼠模型和初级肝细胞培养物来评估RBP4在炎症条件下的表达.

主要成果:

  • 与对照组相比,UC患者的血清RBP4和维生素A水平显著降低.
  • 维生素A和RBP4水平随着UC疾病严重程度的增加而降低,并在治疗后得到改善.
  • 在大肠炎的小鼠模型中,肝脏RBP4表达减少,并且与促炎性细胞因子 (TNF-α,IL-6,IL-17) 有负相关性.

结论:

  • 在UC患者中,血清RBP4水平降低,与疾病严重程度有负相关性.
  • 促炎性细胞因子可能抑制RBP4的表达,可能导致UC中的维生素A运输功能障碍.