在TBC治疗小鼠中的COPD类表型可以通过雌激素补充剂有效地缓解
Wenjuan Zhang1, Yuxin Wang1, Ling Wang1
1Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, 430056 Wuhan, P. R. China.
Environmental science & technology
|August 21, 2024
概括
在小鼠中,Tris ((2,3-dibromopropyl) 异酸盐 (TBC) 暴露引起了类似慢性阻塞性肺病 (COPD) 的症状. 雌激醇 (E2) 治疗逆转了这些影响,这表明TBC诱导的肺炎的潜在治疗方法.
科学领域:
- 环境毒理学环境毒理学
- 呼吸系统医学 呼吸系统医学
- 内分泌学 在内分泌学.
背景情况:
- 三2,3-二) 异酸盐 (TBC) 是一种内分泌干扰剂,与炎症性肺损伤有关.
- 慢性阻塞性肺病 (COPD) 是一种由环境因素加剧的严重呼吸道疾病.
研究的目的:
- 为了研究TBC暴露对小鼠的呼吸系统影响.
- 评估雌激醇 (E2) 对TBC诱导的肺损伤的保护作用.
- 阐明涉及雌激素受体α (ERα) 和NF-κB的潜在分子机制.
主要方法:
- 雄性C57BL/6J小鼠接受了TBC (20 mg/kg/天14天).
- 同时使用雌激醇 (E2) 来评估其保护作用.
- 进行了免疫组织化学分析,以检查ERα和NF-κB表达水平.
主要成果:
- 暴露于TBC引起了类似于COPD的症状,包括炎症性肺损伤和功能障碍.
- 同时治疗E2显著减轻了TBC诱导的COPD类表型.
- TBC降低了ERα表达和增加了NF-κB表达;E2治疗恢复了这些水平.
结论:
- 作为抗雌激素剂的TBC可能通过ERα介导的炎症途径促进COPD的发病.
- E2治疗显示出作为TBC引起的呼吸功能障碍的补救策略的潜力.
- 空气污染中的抗雌激素化合物存在加剧COPD等呼吸道疾病的风险.
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