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在猪旋转手套肌中通过高血糖调节EGR1表达

Joey Day¹, Resmi Rajalekshmi¹, Devendra K Agrawal¹

¹Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California, 91766, USA.

Journal of orthopaedics and sports medicine

|August 26, 2025

概括

高血糖通过影响早期生长反应-1 (EGR1) 和收费类受体4 (TLR4) 途径损害肌. 针对这些通路可能有助于在糖尿病中保持肌健康.

科学领域:

生物医学科学
分子生物学
免疫学

背景情况:

已知糖尿病会对肌结构和功能产生负面影响.
连接高血糖与肌退化的精确分子机制尚未完全理解.

研究的目的:

研究早期生长反应-1 (EGR1) 与托尔类受体4 (TLR4) 和核因子kappa B (NF-κB) 信号通路的表达.
使用猪模型探索高血糖条件下的肌退化的分子机制.

主要方法:

在正常和高血糖猪肌组织上使用了组织学,qRT-PCR,西部抹杀和免疫组织化学.
分析了EGR1,TLR4和NF-κB的细胞形态,细胞性和基因/蛋白质表达.

主要成果:

组织学显示高血糖肌的细胞形态变化和细胞性增加.
qRT-PCR显示EGR1,TLR4和NF-κBmRNA的显著上调.
蛋白质分析显示EGR1的非显著降低和TLR4和NF- kB的适度增加,这表明转录后调节和变化的压力颗粒动态.

结论:

过高血糖会激活肌中的炎症和应激途径,包括EGR1,TLR4和NF-κB.
在EGR1mRNA和蛋白质水平之间存在差异,表明通过压力颗粒进行转化调节.
针对TLR4信号或压力颗粒形成可能为糖尿病肌并发症提供治疗策略.

关键词:

糖尿病早期生长反应-1 血糖过高炎症发生旋转手套肌压力颗粒收费类接收器

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