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Protective effect of alpha-pinene against isoproterenol-induced myocardial infarction through NF-κB signaling pathway.
Human & Experimental Toxicology ( IF 2.7 ) Pub Date : 2020-06-30 , DOI: 10.1177/0960327120934537
B Zhang 1 , H Wang 2 , Z Yang 3 , M Cao 4 , K Wang 5 , G Wang 6 , Y Zhao 7
Affiliation  

Monoterpenes present in the essential oils exhibit anti-inflammatory properties. In this study, we investigated the preventive effect of alpha-pinene (AP), a monoterpene, against isoproterenol (ISO)-induced myocardial infarction and inflammation in Wistar rats. Male Wistar rats were pretreated with AP (50 mg/kg body weight (bw)) administration for 21 days and ISO (85 mg/kg bw) was administered subcutaneously for last two consecutive days (20th day and 21st day). We noticed that there was an increased activity of cardiac marker enzymes in ISO-treated rats. We also observed that elevated levels of lipid peroxidative indices decreased activities of antioxidant status in plasma, erythrocyte, and heart tissue in ISO-induced rats. Furthermore, ISO-treated rats showed an increase in the levels of inflammatory mediators like tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in the serum. Besides, we confirmed the upregulated expression of TNF-α, IL-6, and nuclear factor kappa-light-chain-enhancer of activated B cells in ISO-induced rat heart tissue. Conversely, we found that AP pretreatment significantly decreased levels of cardiac markers like serum cardiac troponin T and cardiac troponin I, lipid peroxidative markers, and restored antioxidants status in ISO-treated rats. Besides, AP administration attenuated ISO-induced inflammatory marker expression. The present findings demonstrated that AP significantly protects the myocardium and exerts cardioprotective and anti-inflammatory effects in experimental rats.



中文翻译:

α-pine烯通过NF-κB信号通路对异丙肾上腺素引起的心肌梗塞的保护作用。

香精油中存在的单萜具有抗炎特性。在这项研究中,我们调查了单萜α-pine烯(AP)对异丙肾上腺素(ISO)诱导的Wistar大鼠心肌梗塞和炎症的预防作用。对雄性Wistar大鼠进行AP(50 mg / kg体重(bw))预处理21天,并在连续两天(第20天和第21天)皮下施用ISO(85 mg / kg bw)。我们注意到在用ISO治疗的大鼠中心脏标志物酶的活性增加了。我们还观察到,升高的脂质过氧化指数水平会降低ISO诱导的大鼠血浆,红细胞和心脏组织中抗氧化状态的活性。此外,用ISO治疗的大鼠血清中炎症介质如肿瘤坏死因子-α(TNF-α)和白介素6(IL-6)的水平升高。此外,我们证实了激活的B细胞在ISO诱导的大鼠心脏组织中TNF-α,IL-6和核因子κ轻链增强子的表达上调。相反,我们发现AP预处理可显着降低心脏标记物(如血清心肌肌钙蛋白T和心肌钙蛋白I),脂质过氧化标记物的水平,并恢复ISO治疗大鼠的抗氧化剂状态。此外,AP给药减弱了ISO诱导的炎症标志物的表达。目前的发现表明,AP可以显着保护心肌,并在实验大鼠中发挥心脏保护和抗炎作用。我们证实了ISO诱导的大鼠心脏组织中活化B细胞的TNF-α,IL-6和核因子κ轻链增强子的表达上调。相反,我们发现AP预处理可显着降低心脏标记物(如血清心肌肌钙蛋白T和心肌钙蛋白I),脂质过氧化标记物的水平,并恢复ISO治疗大鼠的抗氧化剂状态。此外,AP的施用减弱了ISO诱导的炎症标志物的表达。目前的发现表明,AP可以显着保护心肌,并在实验大鼠中发挥心脏保护和抗炎作用。我们证实了ISO诱导的大鼠心脏组织中活化B细胞的TNF-α,IL-6和核因子κ轻链增强子的表达上调。相反,我们发现AP预处理可以显着降低心脏标记物(如血清心肌肌钙蛋白T和心脏肌钙蛋白I),脂质过氧化标记物的水平,并恢复ISO治疗大鼠的抗氧化剂状态。此外,AP的施用减弱了ISO诱导的炎症标志物的表达。目前的发现表明,AP能在实验大鼠中显着保护心肌并发挥心脏保护和抗炎作用。我们发现AP预处理可显着降低心脏标志物(如血清心肌肌钙蛋白T和心肌肌钙蛋白I),脂质过氧化标志物的水平,并恢复ISO治疗大鼠的抗氧化剂状态。此外,AP的施用减弱了ISO诱导的炎症标志物的表达。目前的发现表明,AP能在实验大鼠中显着保护心肌并发挥心脏保护和抗炎作用。我们发现AP预处理可以显着降低心脏标志物(如血清心肌肌钙蛋白T和心肌肌钙蛋白I),脂质过氧化标志物的水平,并恢复ISO治疗大鼠的抗氧化剂状态。此外,AP的施用减弱了ISO诱导的炎症标志物的表达。目前的发现表明,AP能在实验大鼠中显着保护心肌并发挥心脏保护和抗炎作用。

更新日期:2020-06-30
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