1.佳木斯大学药学院,黑龙江 佳木斯 154007
2.黑龙江省新药创制与药效毒理评价重点实验室,黑龙江 佳木斯 154007
3.佳木斯大学公共卫生学院,黑龙江 佳木斯 154007
Received:27 September 2023,
Revised:2024-01-27,
Accepted:30 January 2024,
Published:15 March 2024
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马永哲,王宇亮,张凯,等.关黄柏多糖对大鼠痛风性肾病的改善作用及机制研究[J].中国药房,2024,35(05):555-559.
MA Yongzhe,WANG Yuliang,ZHANG Kai,et al.Improvement effect of Phellodendron amurense polysaccharides on gouty nephropathy in rats and its mechanism[J].ZHONGGUO YAOFANG,2024,35(05):555-559.
马永哲,王宇亮,张凯,等.关黄柏多糖对大鼠痛风性肾病的改善作用及机制研究[J].中国药房,2024,35(05):555-559. DOI: 10.6039/j.issn.1001-0408.2024.05.08.
MA Yongzhe,WANG Yuliang,ZHANG Kai,et al.Improvement effect of Phellodendron amurense polysaccharides on gouty nephropathy in rats and its mechanism[J].ZHONGGUO YAOFANG,2024,35(05):555-559. DOI: 10.6039/j.issn.1001-0408.2024.05.08.
目的
2
研究关黄柏多糖(PAP)对大鼠痛风性肾病(GN)的改善作用,并通过丝裂原激活蛋白激酶p38(p38 MAPK)/核因子κB(NF-κB)/肿瘤坏死因子α(TNF-α)信号通路初步探讨其作用机制。
方法
2
将60只大鼠按体重分层后随机分为正常组(水)、模型组(水)、别嘌醇组(阳性对照,20 mg/kg)和PAP高、中、低剂量组(100、50、25 mg/kg,以生药量计),每组10只。除正常组外,其余各组大鼠均采取1 500 mg/kg氧嗪酸钾和100 mg/kg腺嘌呤联合灌胃14 d构建GN模型。造模成功后,各组大鼠灌胃相应药物/水,每天1次,连续28 d。末次给药后,检测大鼠肾功能相关生化指标[尿酸、肌酐(Cr)、血尿素氮(BUN)、黄嘌呤氧化酶(XOD)],观察大鼠肾组织病理形态学变化,检测大鼠肾组织中单核细胞趋化蛋白1(MCP-1)、TNF-α、白细胞介素6(IL-6)蛋白表达水平和p38 MAPK、NF-κB p65蛋白的磷酸化水平。
结果
2
与正常组比较,模型组大鼠肾小管扩张,肾小球结构损坏,并伴有炎症浸润与纤维化;尿酸、Cr、BUN、XOD含量以及MCP-1、TNF-α、IL-6蛋白表达水平和p38 MAPK、NF-κB p65蛋白的磷酸化水平均显著升高(
P
<0.05或
P
<0.01)。与模型组比较,PAP各剂量组大鼠的肾组织病理症状均有不同程度改善;PAP高、中剂量组大鼠尿酸、Cr、BUN、XOD含量以及MCP-1、TNF-α、IL-6蛋白表达水平和p38 MAPK、NF-κB p65蛋白的磷酸化水平均显著降低(
P
<0.05或
P
<0.01)。
结论
2
PAP具有抗GN的作用,其机制可能与抑制p38 MAPK/NF-κB/TNF-α信号通路的激活有关。
OBJECTIVE
2
To study the effects of
Phellodendron amurense
polysaccharides (PAP) on improving gouty nephropathy (GN) in rats, and to investigate its mechanism primarily by interfering the p38 mitogen-activated protein kinase (p38 MAPK)/nuclear factor-κB(NF-κB)/tumor necrosis factor-α(TNF-α).
METHODS
2
Sixty rats were randomly divided into normal group (water), model group (water), allopurinol group (positive control, 20 mg/kg), PAP high-dose, medium-dose and low-dose groups (100, 50, 25 mg/kg, by raw material) after being stratified by body weight, with 10 rats in each group. Except for the normal group, the other groups were induced to construct GN model by giving 1 500 mg/kg potassium oxazinate and 100 mg/kg adenine intragastrically for 14 days. After modeling, the rats in each group were given relevant medicine/water intragastrically, once a day, for consecutive 28 days. After the last medication, the levels of biochemical parameters related to renal function [uric acid, creatinine (Cr), blood urea nitrogen (BUN), xanthine oxidase (XOD)] were detected in rats, and the histopathological changes in the rat kidney were observed. The protein expressions of monocyte chemoattractant protein-1(MCP-1), TNF-α and interleukin-6(IL-6) as well as the phosphorylation levels of p38 MAPK and NF-κB p65 protein were determined in renal tissue of rats.
RESULTS
2
Compared with the normal group, the model group suffered from the dilatation of renal tubules, structural damage to glomeruli, accompanied by inflammatory infiltration and fibrosis; the contents of uric acid, Cr, BUN and XOD, the protein expressions of MCP-1, TNF-α and IL-6 and the phosphorylation levels of p38 MAPK and NF-κB p65 protein were all increased significantly (
P
<0.05 or
P
<0.01). Compared with the model group, the pathological symptoms of renal tissue in rats had been improved to varying degrees in different dose groups of PAP; the contents of uric acid, Cr, BUN and XOD, protein expressions of MCP-1, TNF-α and IL-6, the phosphorylation levels of p38 MAPK and NF-κB p65 protein in PAP high-dose and PAP medium-dose groups were all decreased significantly (
P
<0.05 or
P
<0.01).
CONCLUSIONS
2
PAP exhibits an anti-GN effect, the mechanism of which may be associated with inhibiting the p38 MAPK/NF-κB/TNF-α signaling pathway.
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