肥胖增加了脏炎症和恶化了伤害与叶酸诱导的急性脏损伤
Marina Katerelos1, Chathri Ratnayake1,2, Kurt Gleich1,2
1Kidney Laboratory, Department of Nephrology, Austin Health, Heidelberg, Victoria, Australia.
概括
肥胖会通过增加死角炎症和激活细胞死亡途径 - - 死角亡来加剧急性损伤 (AKI). 这些发现突出了患有损伤的肥胖患者的潜在治疗点.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 肥胖是一种与慢性低度炎症相关的全球健康危机.
- 肥胖对急性损伤 (AKI) 的影响,其特点是死角炎症,尚不清楚.
- 管损伤涉及炎症和细胞死亡.
研究的目的:
- 在小鼠中研究肥胖对叶酸诱导的AKI (FA-AKI) 的影响.
- 为了检查肥胖AKI中死角炎和细胞死亡的机制.
- 确定肥胖个体中AKI的潜在治疗点.
主要方法:
- 接受高脂肪饮食 (HFD) 的肥胖小鼠和对照小鼠接受了叶酸诱导的AKI (FA-AKI).
- 评估损伤标志物 (血清尿素,肌素,NGAL),炎症 (Il6,CCL2 mRNA) 和细胞死亡途径 (RIPK3,pMLKL,铁,亡,自).
- 使用RT-PCR,西部涂抹和油红色O染色进行分析.
主要成果:
- 肥胖小鼠表现出加剧的FA-AKI,并具有更高的损伤标志物和炎症.
- 在肥胖的AKI小鼠中观察到管状脂质积累和亡激活增加 (RIPK3,pMLKL).
- 虽然FA-AKI影响了铁亡,亡和自的标记物,但这些变化并没有被HFD显著调节.
结论:
- 肥胖会加剧AKI,并促进死体炎症,特别是在管细胞中增加死体亡的激活.
- 亡症成为损伤中对肥胖敏感的关键途径.
- 向亡可能为肥胖的AKI患者提供治疗策略.
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