比斯 (甲基甘醇) 甲酸盐对内细胞内皮细胞内网膜应激的作用
Verma Nishitha-Hiresha1, Raghavan Varsha1, S Srinidhi1
1Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India.
Environmental toxicology and pharmacology
|September 26, 2024
概括
双暴露会导致细胞损伤和氧化应激,导致内皮功能障碍和潜在的心血管疾病. 这项研究阐明了这些健康风险背后的机制.
科学领域:
- 环境健康 环境健康
- 毒理学 毒理学 毒理学
- 心血管研究研究心血管研究
背景情况:
- 甲酸塑化剂无处不在,导致人类暴露.
- 双暴露与心血管疾病有关,但机制尚不清楚.
- 内皮功能障碍 (ED) 是一种早期的心血管并发症.
研究的目的:
- 研究双醇对内皮功能障碍的影响.
- 专注于ED中的内等质网膜 (ER) 应激通路.
- 阐明双在心血管疾病进展中的作用.
主要方法:
- 暴露于双的内皮细胞以剂量和时间依赖的方式.
- 测量了细胞毒性和细胞活力.
- 量化ER压力标志物 (GRP78,IRE-1α,CHOP) 和氧化压力标志物 (TXNIP,P22phox) 使用qPCR.
- 通过流动细胞计 (H2DCFDA) 评估反应性氧物种 (ROS) 水平.
主要成果:
- 在内皮细胞中,双醇诱导的剂量和时间依赖的细胞毒性.
- 观察到ER应激和氧化应激标志物的表达升高.
- 与双二醇剂量相关的活性氧物种 (ROS) 水平的增加.
结论:
- 双暴露会在内皮细胞中触发氧化和ER压力.
- 这些压力有助于内皮功能障碍的发展.
- 这些发现提供了对双醇心血管风险的机制性见解.
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