摘要
内源性大麻素系统(ES)功能障碍已在非酒精性脂肪性肝病(NAFLD)和相关的代谢紊乱中被确认。大麻素受体1型(CB1)的表达在很大程度上取决于营养状况。因此,NAFLD和代谢综合征(MS)患者的ES活性显著增加。此外,肝脏的氧化/亚硝化应激和炎症过程调节高度受ES影响。大量实验研究表明,肝脏的氧化和亚硝化应激与NAFLD期间的脂肪变性和门脉炎症有关。另一方面,炎症本身也可能由于枯否细胞的活化和烟酰胺腺嘌呤二核苷酸磷酸(NADPH)氧化酶活性的增加而促进活性氧(ROS)的产生。内源性大麻素及其脂质相关介质调节氧化应激和脂质过氧化的途径是一个重要的研究领域,可以为NAFLD的治疗提供新的药物策略。累积的证据表明ES,特别是CB1受体,可能也在炎症和疾病进展到脂肪性肝炎中发挥作用。NAFLD中CB1受体的药理失活具有多种有益作用,特别是由于肝脏氧化/亚硝化应激参数的衰减和促炎细胞因子的显著减少。然而,在进入临床研究阶段之前,需要对CB1封锁影响肝脏氧化/亚硝化应激和炎症减少的确切机制进行进一步的研究。
关键词: NAFLD,内源性大麻素,CB受体,CB1拮抗,氧化/亚硝化应激,炎症,内源性大麻素系统(ES)。
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