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反式茴香脑对心肌缺血再灌注损伤大鼠模型的抗炎作用。

Anti-inflammatory effect of trans-anethol in a rat model of myocardial ischemia-reperfusion injury.

机构信息

Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.

Clinical Pharmacology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.

出版信息

Biomed Pharmacother. 2022 Jun;150:113070. doi: 10.1016/j.biopha.2022.113070. Epub 2022 May 6.

Abstract

UNLABELLED

Myocardial ischemia‑reperfusion injury (MI/R) is considered a main risk factor for global cardiac mortality and morbidity, for which no effective treatment exists. Both inflammation and epigenetic regulation play a pivotal role in the early stage of MI/R. The present study aimed at investigating the prospective anti-inflammatory role of trans-anethole (TNA) in targeting MI/R and its related mechanism in upregulating the expression of the inflammatory and cardiac-related gene (VAV3), and its epigenetic regulators (lncRNA-JRKL-AS1 and miR-1298) that were retrieved from in-silico data analysis in an ischemia/reperfusion (I/R) rat model.

MATERIALS & METHODS: TNA was administered in 3 doses (50, 100, and 200 mg/kg), 15 min prior to coronary ligation in male Wistar rats. The left ventricular end-diastolic pressure and dP/dtmax were assessed. Histopathological, biochemical, and molecular analyses were performed to assess the effects of TNA pre-treatment on the I/R rats model.

RESULTS

TNA alleviated the I/R-induced cardiac injury pathologically and improved the cardiac function tests and enzymes. At the molecular level, TNA upregulated the expression level of the retrieved RNA-based panel (VAV3 mRNA/miR-1298/lncRNA JRKL-AS1). At the protein level, TNA decreased the cardiac content of the pro-inflammatory cytokine TNF-α.

CONCLUSION

TNA has demonstrated a potential ability to alleviate the cardiac injury and attenuate the inflammatory response following ischemia-reperfusion in the rat model through modulation of the expression of RNA panel (VAV3 mRNA/miR-1298/lncRNA JRKL-AS1) and TNF- α protein.

摘要

目的

本研究旨在探讨反式茴香脑(TNA)通过靶向心肌缺血再灌注(MI/R)损伤,调节炎症和心脏相关基因(VAV3)及其表观遗传调控因子(lncRNA-JRKL-AS1 和 miR-1298)的表达,发挥其在 MI/R 中的抗炎作用。方法:雄性 Wistar 大鼠在冠状动脉结扎前 15min 给予 TNA(50、100 和 200mg/kg)3 个剂量,评估左心室舒张末期压和 dp/dtmax。进行组织病理学、生化和分子分析,以评估 TNA 预处理对 I/R 大鼠模型的影响。结果:TNA 减轻了 I/R 诱导的心脏损伤,改善了心脏功能试验和酶的变化。在分子水平上,TNA 上调了 RNA 面板(VAV3 mRNA/miR-1298/lncRNA JRKL-AS1)的表达水平。在蛋白水平上,TNA 降低了心脏内促炎细胞因子 TNF-α的含量。结论:TNA 通过调节 RNA 面板(VAV3 mRNA/miR-1298/lncRNA JRKL-AS1)和 TNF-α 蛋白的表达,具有减轻大鼠模型缺血再灌注后心脏损伤和炎症反应的潜在能力。

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