咖啡酸乙酸减轻了1,2-二乙烯诱导的有毒大脑胀:中心和外围机制
1Department of Occupational and Environmental Health, School of Public Health, Shenyang Medical College, Shenyang, Liaoning, China.
咖啡酸乙烯 (CAPE) 通过对抗炎症和氧化应激,有效降低1,2-二乙烯 (1,2-DCE) 诱导的大脑. 这种天然化合物保护血脑屏障 (BBB) 的完整性,并减轻相关的病理变化.
科学领域:
- 毒理学 毒理学 毒理学
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 1,2-二乙 (1,2-DCE) 是一个重要的环境污染物和职业危险.
- 在1,2-DCE诱导的大脑中,炎症和氧化应激是至关重要的.
- 咖啡酸乙烯 (CAPE) 是一种具有抗炎和抗氧化特性的天然剂,可以保护血脑屏障 (BBB) 的完整性.
研究的目的:
- 研究CAPE对1,2-DCE诱导的大脑的疗效.
- 探索CAPE保护作用的潜在机制.
主要方法:
- 通过静态吸入暴露,建立了一个1,2-DCE诱导的大脑的小鼠模型.
- 通过大脑水含量,组织病理学和紧结蛋白 (TJPs) 表达来评估大脑.
- 通过p38 MAPK和Nrf2途径分别分析了抗炎和抗氧化机制,并量化了细胞因子和氧化应激标志物.
主要成果:
- 在暴露于1,2-DCE的小鼠中,CAPE治疗减少了体重减轻和脑水含量.
- 组织病理学分析显示,CAPE改善了脑的表现.
- CAPE降低了p38 MAPK和Nrf2通路的调节,抑制了促炎性细胞因子 (TNF-α,IL-1β,MMP-9),使氧化应激标志物 (GSH,MDA) 正常化,并保留了TJPs (Occludin,ZO-1).
- 此外,CAPE还在血清中逆转了全身炎症和氧化应激标志物,并在脑组织中抑制了粘附分子 (VCAM-1,ICAM-1).
结论:
- 这项研究证明了CAPE在缓解1,2-DCE诱导的大脑的有效性.
- CAPE减轻了外周和中心的炎症反应和氧化应激.
- 通过保护BBB完整性,CAPE为1,2-DCE中毒提供了一个潜在的治疗策略.
更多相关视频
09:04In Vivo Tracking of Edema Development and Microvascular Pathology in a Model of Experimental Cerebral Malaria Using Magnetic Resonance Imaging
Published on: June 8, 2017
09:33Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise
Published on: December 19, 2024
相关概念视频
Carboxylic Acids to Esters: Acid-Catalyzed (Fischer) Esterification Mechanism
Acid Halides to Esters: Alcoholysis
Esters to Carboxylic Acids: Acid-Catalyzed Hydrolysis
During hydrolysis, the ester is first activated towards nucleophilic attack through the protonation of the carboxyl oxygen atom by the acid catalyst. The protonation makes the ester carbonyl carbon more electrophilic. In the next step, water acts as a nucleophile and adds to the...
Esters to Carboxylic Acids: Saponification
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides
The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to “yl halide.” For example, as shown below, the IUPAC name ethanoyl chloride is derived from ethanoic acid, and the common name, acetyl chloride, is obtained from acetic acid.
Esters to β-Ketoesters: Claisen Condensation Mechanism
