Chang Yi-Hsien, Chiang Yi-Fen, Chen Hsin-Yuan, Huang Yun-Ju, Wang Kai-Lee, Hong Yong-Han, Ali Mohamed, Shieh Tzong-Ming, Hsia Shih-Min
Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan.
School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan.
Antioxidants (Basel). 2021 Apr 6;10(4):564. doi: 10.3390/antiox10040564.
Hyperuricemia is the main cause of gout and involved in the occurrence of many other diseases such as hyperlipidemia and hypertension correlated with metabolic disorders. Chrysin is a flavonoid compound found naturally in honey, propolis, and mushrooms and has anti-inflammatory and antioxidant effects. However, its mechanism of action is not clear yet. This study investigated the mechanism of chrysin's anti-hyperuricemic effect in hyperuricemia-induced rats fed with high-fructose corn syrup. Orally administrated chrysin for 28 consecutive days effectively decreased uric acid by inhibiting the activity of xanthine oxidase (XO) in the liver. Moreover, chrysin markedly downregulated the protein expression of uric acid transporter 1 (URAT1) and glucose transporter type 9 (GLUT9) and upregulated the protein expression of organic anion transporter 1 (OAT1) and human ATP-binding cassette subfamily G-2 (ABCG2). In addition, chrysin showed prominent anti-oxidative and inflammatory effects as the malondialdehyde (MDA) and interleukin 1 beta (IL-1β) concentration was reduced in both rat kidney and serum, which aligned with the inhibition of NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome signaling pathway activation. Collectively, our results strongly suggest that chrysin exhibits potent anti-hyperuricemic and anti-inflammatory effects that may yield new adjuvant treatments for gout.
高尿酸血症是痛风的主要病因,并与许多其他疾病的发生有关,如与代谢紊乱相关的高脂血症和高血压。白杨素是一种天然存在于蜂蜜、蜂胶和蘑菇中的黄酮类化合物,具有抗炎和抗氧化作用。然而,其作用机制尚不清楚。本研究探讨了白杨素对高果糖玉米糖浆喂养的高尿酸血症大鼠抗高尿酸血症作用的机制。连续28天口服白杨素可通过抑制肝脏中黄嘌呤氧化酶(XO)的活性有效降低尿酸。此外,白杨素显著下调尿酸转运蛋白1(URAT1)和葡萄糖转运蛋白9(GLUT9)的蛋白表达,并上调有机阴离子转运蛋白1(OAT1)和人ATP结合盒亚家族G-2(ABCG2)的蛋白表达。此外,白杨素还表现出显著的抗氧化和抗炎作用,因为大鼠肾脏和血清中的丙二醛(MDA)和白细胞介素1β(IL-1β)浓度均降低,这与抑制含NOD样受体家族pyrin结构域3(NLRP3)炎性小体信号通路激活一致。总的来说,我们的结果强烈表明,白杨素具有强大的抗高尿酸血症和抗炎作用,可能为痛风带来新的辅助治疗方法。