Sung Yoon-Young, Yuk Heung Joo, Kim Dong-Seon
Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea.
J Ginseng Res. 2021 Sep;45(5):565-574. doi: 10.1016/j.jgr.2021.01.001. Epub 2021 Jan 16.
Saengmaeksan (SMS) is a traditional Korean medicine composed of three herbs, , , and . SMS is used to treat respiratory and cardiovascular disorders. However, whether SMS exerts antihyperuricemic effects is unknown.
Effects of the SMS extract in water (SMS-W) and 30% ethanol (SMS-E) were studied in a rat model of potassium oxonate-induced hyperuricemia. Uric acid concentrations and xanthine oxidase (XO) activities were evaluated in the serum, urine, and hepatic tissue. Using renal histopathology to assess kidney function and uric acid excretion, we investigated serum creatinine and blood urea nitrogen concentrations, as well as protein levels of renal urate transporter 1 (URAT1), glucose transporter 9 (GLUT9), and organic anion transporter 1 (OAT1). The effects of SMS on XO activity and uric acid uptake were also evaluated. The components of SMS were identified using Ultra Performance Liquid Chromatography (UPLC).
SMS-E reduced serum uric acid and creatinine concentrations, and elevated urine uric acid excretion. SMS-E lowered XO activities in both the serum and liver, and downregulated the expression of renal URAT1 and GLUT9 proteins. SMS-E reduced renal inflammation and IL-1β levels in both the serum and kidneys. SMS-E inhibited both XO activity and urate uptake in URAT1-expressing oocytes. Using UPLC, 25 ginsenosides were identified, all of which were present in higher levels in SMS-E than in SMS-W.
SMS-E exhibited antihyperuricemic effects by regulating XO activity and renal urate transporters, providing the first evidence of its applicability in the treatment of hyperuricemia and gout.
生脉散(SMS)是一种由三种草药组成的韩国传统医学方剂。SMS用于治疗呼吸道和心血管疾病。然而,SMS是否具有抗高尿酸血症作用尚不清楚。
在氧嗪酸钾诱导的高尿酸血症大鼠模型中研究了水提取物(SMS-W)和30%乙醇提取物(SMS-E)的作用。评估血清、尿液和肝组织中的尿酸浓度和黄嘌呤氧化酶(XO)活性。通过肾脏组织病理学评估肾功能和尿酸排泄,我们研究了血清肌酐和血尿素氮浓度,以及肾脏尿酸转运蛋白1(URAT1)、葡萄糖转运蛋白9(GLUT9)和有机阴离子转运蛋白1(OAT1)的蛋白水平。还评估了SMS对XO活性和尿酸摄取的影响。使用超高效液相色谱(UPLC)鉴定SMS的成分。
SMS-E降低了血清尿酸和肌酐浓度,并增加了尿尿酸排泄。SMS-E降低了血清和肝脏中的XO活性,并下调了肾脏URAT1和GLUT9蛋白的表达。SMS-E减轻了肾脏炎症以及血清和肾脏中的IL-1β水平。SMS-E抑制了表达URAT1的卵母细胞中的XO活性和尿酸摄取。使用UPLC鉴定出25种人参皂苷,所有这些人参皂苷在SMS-E中的含量均高于SMS-W。
SMS-E通过调节XO活性和肾脏尿酸转运蛋白表现出抗高尿酸血症作用,为其在高尿酸血症和痛风治疗中的适用性提供了首个证据。