Xue Furong, Zhu Renqin, Li Jiaxing, Liu Zheng, Niu Lidan, Chen Wei, Wang Chengtao, Zheng Jie
Key Laboratory of Geriatric Nutrition and Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, No.33 Fucheng Road, Haidian District, Beijing 100048, China.
Key Laboratory of Condiment Supervision Technology for State Market Regulation, School of Chemistry and Chemical Engineering, Chongqing Institute for Food and Drug Control, Chongqing University, No.55 Daxuecheng South Rd, Shapingba, Chongqing 401331, China.
Foods. 2025 Aug 8;14(16):2765. doi: 10.3390/foods14162765.
The increasing global prevalence of hyperuricemia (HUA), particularly among younger populations, underscores the urgent need for safe and effective dietary interventions. fungi, long utilized in East Asian food culture, ferment rice to produce red yeast rice (RYR), a functional food rich in monacolin K and Monascus pigments. Among these, yellow pigments (MYPs)-natural azaphilone compounds used as food additives and colorants-have shown antioxidant, anti-inflammatory, and metabolic regulatory activities. However, their potential to alleviate hyperuricemia remains unexplored. This study investigates the urate-lowering and organ-protective effects of MYPs through a combination of in vitro, in vivo, and gut microbiota analyses. MYPs exhibited significant xanthine oxidase (XOD) inhibitory activity, and molecular docking confirmed that monascin (MS) and ankaflavin (AK) competitively bind to the XOD active site. In a murine HUA model, MYPs significantly reduced serum uric acid (SUA) levels without causing hepatic or renal toxicity. Mechanistically, MYPs downregulated renal UA reabsorption transporters (URAT1, GLUT9) and upregulated the excretory transporter ABCG2, enhancing uric acid (UA) excretion. These findings highlight MYPs as promising food-derived bioactives with dual XOD inhibition and uricosuric effects, offering a novel nutraceutical strategy for hyperuricemia prevention and management.
全球高尿酸血症(HUA)的患病率不断上升,尤其是在年轻人群中,这凸显了对安全有效的饮食干预措施的迫切需求。真菌长期以来在东亚饮食文化中被使用,可发酵大米产生红曲米(RYR),这是一种富含莫纳可林K和红曲色素的功能性食品。其中,黄色色素(MYPs)——用作食品添加剂和着色剂的天然氮杂茂酮化合物——已显示出抗氧化、抗炎和代谢调节活性。然而,它们缓解高尿酸血症的潜力尚未得到探索。本研究通过体外、体内和肠道微生物群分析相结合的方法,研究了MYPs的降尿酸和器官保护作用。MYPs表现出显著的黄嘌呤氧化酶(XOD)抑制活性,分子对接证实莫纳辛(MS)和安卡黄素(AK)竞争性结合到XOD活性位点。在小鼠HUA模型中,MYPs显著降低血清尿酸(SUA)水平,且未引起肝或肾毒性。从机制上讲,MYPs下调肾尿酸重吸收转运蛋白(URAT1、GLUT9),上调排泄转运蛋白ABCG2,增强尿酸(UA)排泄。这些发现突出了MYPs作为有前景的食物来源生物活性物质,具有双重XOD抑制和促尿酸排泄作用,为高尿酸血症的预防和管理提供了一种新的营养保健策略。
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