摘要
目的探究复方木姜叶柯活性茶对高尿酸血症肾病小鼠的尿酸和肾功能的影响,为开发治疗高尿酸血症肾病的药物和功能性食品提供实验依据。方法采用氧嗪酸钾联合腺嘌呤建立高尿酸血症肾病小鼠模型。小鼠随机分为空白组、模型组、阳性组(10 mg/(kg·d))、复方茶高、中、低剂量组(10 g/(kg·d))、3.33 g/(kg·d)、1.11 g/(kg·d)。末次给药1 h后,取尿液,采用CBB法测定尿蛋白(UP),脲酶法检测尿液尿素氮(UUN);眼眶取血,采用酶比色法检测尿酸(UA)含量,脲酶法检测血清尿素氮(BUN)含量,酶联免疫法检测白细胞介素6(IL6)、肿瘤坏死因子(TNF-α)含量;取肾组织,荧光定量分析法检测尿酸盐转运蛋白1(URAT1)及葡萄糖转运体9(GLUT9)含量,HE染色观察肾组织病理变化情况。结果与空白组相比,模型组小鼠中UP、UUN、UA、BUN、IL-6、URAT1、GLUT9及TNF-α水平显著增高(P<0.01,P<0.05),肾组织结构正常。与模型组相比,阳性组中UP、UUN、UA、BUN、URAT1、IL-6、TNF-α水平显著降低(P<0.01,P<0.05),肾组织有少量肾小球萎缩变形,偶见肾小管扩张,无炎性细胞浸润。与模型组相比,复方茶高剂量组中UP、UUN、UA、BUN、IL-6、URAT1、TNF-α水平显著降低(P<0.01,P<0.05);复方茶中剂量组中UP、UUN、UA、IL-6、URAT1、GLUT9、TNF-α水平显著降低(P<0.01,P<0.05);复方茶低剂量组中UP、UUN、UA、IL-6、URAT1、BUN、TNF-α、GLUT9水平显著降低(P<0.01,P<0.05)。结论复方木姜叶柯活性茶能降低高尿酸血症肾病小鼠的尿酸,且对肾组织具有一定的保护作用,其机制可能与抑制尿酸重吸收有关,具体机制有待进一步研究。
Objective To explore the effect of compound active tea of Lithocarpus litseifolius on uric acid levels and kidney function of mice with hyperuricemia nephropathy and to provide an experimental basis for the development of hyperuricemia nephropathy drugs and functional food.Methods A mouse model of hyperuricemia nephropathy was established by administering potassium oxazinate with adenine.Mice were randomly divided into common,model,positive drug(10 mg/(kg·d))and compound active tea of Lithocarpus litseifolius high-,middle-and low-dose groups(10 g/(kg·d),3.33 g/(kg·d)and 1.11 g/(kg·d),respectively).One hour after the last gavage,urine protein(UP)was measured by CBB method,urea nitrogen(UUN)was measured by urease method.Orbital blood pampling,blood was collected for uric acid(UA)analysis by enzyme ratio method,urea nitrogen(BUN)was measured by urease method.The serum contents of interleukin 6(IL-6)and tumor necrosis factor(TNF-α)were measured by ELISA.Take kidney tissue,levels of urate transporter 1(URAT1)and glucose transporter 9(GLUT9)were measured by quantitative fluorescence,kidney histopathological changes were observed by HE stainning.Results Compared with the control group,the model group’s levels of UP,UUN,UA,BUN,IL-6,URAT1,ULUT9 and TNF-αwere significantly increased(P<0.01,P<0.05),and the renal tissue structure was normal.Compared with the model group,the positive group’s levels of UP,UUN,UA,BUN,IL-6 and TNF-αwere significantly decreased(P<0.01,P<0.05),there was little glomerular atrophy or deformation in the kidneys,kidney tubular dilatation was occasionally seen,but there was no inflammatory cell infiltration.Compared with the model group,the high-dose compound active tea of Lithocarpus litseifolius group’s UP,UUN,UA,BUN,IL-6,URAT1,TNF-αand GLUT9 levels were significantly decreased(P<0.01,P<0.05).The middle-dose compound active tea of Lithocarpus litseifolius group’s UP,UUN,UA content,IL-6,URAT 1,GLUT9,BUN and TNF-αwere significantly decreased(P<0.01,P<0.05).The low-dose compound active tea of Lithocarpus litseifolius group’s UP,UUN,UA,IL-6,URAT1,BUN,TNF-αand GLUT9 levels were significantly decreased(P<0.01,P<0.05).Conclusions Compound active tea of Lithocarpus litseifolius can reduce uric acid in mice with hyperuricemia nephropathy and has a certain protective effect on the kidneys.The mechanism may be related to the inhibition of uric acid reabsorption,and the specific mechanistic details should be further investigated.
作者
陈园园
曾亚南
杜小浪
慕泽泾
廖成东
章常华
曹岚
CHEN Yuanyuan;ZENG Yanan;DU Xiaolang;MU Zejing;LIAO Chengdong;ZHANG Changhua;CAO Lan(Jiangxi University of Chinese Medicine,Nanchang 330004;China.2.Jinggangshan Mujiangyeke Augriculuture and Forestry Development Co,Ltd,Jinggangshan 343604)
出处
《中国比较医学杂志》
CAS
北大核心
2024年第1期60-68,共9页
Chinese Journal of Comparative Medicine
基金
江西省现代农业产业技术体系建设专项(JXARS-11)
江西中医药大学创新创业项目(202210412065,202210412336)
赣鄱俊才-江西省主要学科学术和技术带头人培养项目(领军人才-学术类)(20232BCJ22022)。
关键词
复方木姜叶柯活性茶
高尿酸血症肾病
尿酸
肾功能
尿酸转运蛋白
compound active tea of Lithocarpus litseifolius
hyperuricemic nephropathy
uric acid
renal function
uric acid transporter Conflicts of Interest:The authors declare no conflict of interest.
