L. 叶提取物可减轻同时暴露于噪声和甲苯的大鼠肺部炎症和组织破坏。
L. leaf extract mitigates pulmonary inflammation and tissue destruction in rats induced by concurrent exposure to noise and toluene.
机构信息
Department of Biology, University of Tunis El Manar, Tunis, Tunisia.
Department of Chemistry, University of Monastir, Monastir, Tunisia.
出版信息
Drug Chem Toxicol. 2024 Nov;47(6):1072-1086. doi: 10.1080/01480545.2024.2330014. Epub 2024 Mar 20.
This study aimed to investigate the effects of combined exposure to noise (85 dB(A)) and inhaled Toluene (300 ± 10 ppm) on rat lung health. It also aimed to assess the potential therapeutic effects of L. leaves extract (OLE) (40 mg/kg/day) using biochemical, histopathological, and immunohistochemical (IHC) analyses, as well as determination of pro-inflammatory cytokines (TNF-α and IL-1β), and Docking studies. The experiment involved forty-two male rats divided into seven groups, each exposed to a 6-week/6-hour/day regimen of noise and Toluene. The groups included a control group, rats co-exposed to noise and Toluene, and rats co-exposed to noise and Toluene treated with OLE for different durations. The results indicated that noise and Toluene exposure led to structural damage in lung tissue, oxidative harm, and increased levels of pro-inflammatory cytokines (TNF-α and IL-1β). However, the administration of OLE extract demonstrated positive effects in mitigating these adverse outcomes. OLE treatment reduced lipid peroxidation and enhanced the activities of catalase and superoxide dismutase, indicating its anti-oxidant properties. Furthermore, OLE significantly decreased the levels of pro-inflammatory cytokines compared to the groups exposed to noise and Toluene without OLE treatment. Moreover, the investigation substantiated a robust affinity between COX-2 and OLE components, affirming the anti-inflammatory activity. Overall, our findings suggest that OLE possesses anti-inflammatory and anti-oxidative properties that mitigate the adverse effects of concurrent exposure to noise and Toluene.
本研究旨在探讨噪声(85dB(A))和吸入甲苯(300±10ppm)联合暴露对大鼠肺健康的影响。还旨在评估 L. 叶提取物(OLE)(40mg/kg/天)的潜在治疗效果,使用生化、组织病理学和免疫组织化学(IHC)分析,以及测定促炎细胞因子(TNF-α 和 IL-1β),并进行对接研究。实验涉及 42 只雄性大鼠,分为 7 组,每组暴露于 6 周/6 小时/天的噪声和甲苯。这些组包括一个对照组、同时暴露于噪声和甲苯的大鼠组,以及同时暴露于噪声和甲苯并用 OLE 治疗不同时间的大鼠组。结果表明,噪声和甲苯暴露导致肺组织结构损伤、氧化损伤和促炎细胞因子(TNF-α 和 IL-1β)水平升高。然而,OLE 提取物的给药表现出减轻这些不利后果的积极效果。OLE 治疗降低了脂质过氧化作用,增强了过氧化氢酶和超氧化物歧化酶的活性,表明其具有抗氧化特性。此外,与未用 OLE 治疗的同时暴露于噪声和甲苯的组相比,OLE 显著降低了促炎细胞因子的水平。此外,研究证实 COX-2 与 OLE 成分之间具有强大的亲和力,证实了其抗炎活性。总体而言,我们的研究结果表明,OLE 具有抗炎和抗氧化特性,可以减轻同时暴露于噪声和甲苯的不利影响。