摘要
目的基于调控VEGF-C/VEGFR3通路抑制淋巴管新生探讨补阳还五汤合参芪地黄汤化裁对糖尿病肾病(DKD)小鼠的保护作用及机制。方法将24只雄性db/db小鼠随机分为模型组、中药组(补阳还五汤合参芪地黄汤化裁,生药量24.44 g·kg-1)和西药组(厄贝沙坦,13.5 mg·kg-1),每组8只,另外取8只db/m小鼠作为对照组。灌胃给药,每日1次,连续12周。检测小鼠血糖(FBG)、总胆固醇(TC)、甘油三脂(TG)、尿白蛋白/肌酐比值(ACR)及肾脏指数;采用HE、Masson染色法观察肾脏组织病理变化;免疫组化法检测肾脏组织纤连蛋白(FN)、Ⅰ型胶原蛋白(ColⅠ)、波形蛋白(Vimentin)、α平滑肌肌动蛋白(α-SMA)、转化生长因子β1(TGF-β1)、血管内皮生长因子受体3(VEGFR3)、血管内皮生长因子C(VEGF-C)、淋巴管内皮透明质酸受体1(LYVE-1)、平足蛋白(PDPN)、肿瘤坏死因子α(TNF-α)和白细胞介素1β(IL-1β)的表达;Western Blot法检测肾脏组织ColⅠ、Vimentin、α-SMA、TGF-β1、VEGFR3、VEGF-C、LYVE-1、TNF-α、IL-1β蛋白表达;Real-time PCR法检测肾脏组织FN、ColⅠ、TGF-β1、VEGF-C、VEGFR3、TNF-α、IL-1βmRNA表达。结果与对照组比较,模型组小鼠的血清FBG、TG、TC、ACR水平及肾脏指数均明显升高(P<0.05);肾小球肥大,系膜外基质增加,基底膜增厚,囊腔变窄,肾小管上皮细胞变性、坏死,间质有大量炎性细胞浸润,肾小管萎缩,纤维化水平明显升高(P<0.05);肾间质中FN、ColⅠ、Vimentin、α-SMA、TGF-β1、VEGFR3、LYVE-1、TNF-α、IL-1β蛋白表达,胞质中VEGF-C蛋白表达及肾小管毛细血管周围VEGFR3、PDPN蛋白表达均明显上调(P<0.05);肾脏组织中ColⅠ、Vimentin、α-SMA、TGF-β1、VEGFR3、VEGF-C、LYVE-1、TNF-α、IL-1β蛋白表达均明显上调(P<0.05);肾脏组织中FN、ColⅠ、TGF-β1、VEGF-C、VEGFR3、TNF-α、IL-1βmRNA表达水平均明显升高(P<0.05)。与模型组比较,中药组小鼠的血清TG、TC、ACR水平均明显降低(P<0.05);肾�
Objective To explore the protective effect and mechanism of modified Buyang Huanwu Decoction and Shenqi Dihuang Decoction on diabetic kidney disease(DKD)mice based on the regulation of VEGF-C/VEGFR3 pathway inhibiting lymphangiogenesis.Methods Twenty-four male db/db mice were randomly divided into model group,Chinese medicine group(modified Buyang Huanwu Decoction combined with Shenqi Dihuang Decoction,crude drug 24.44 g·kg-1)and western medicine group(Irbesartan,13.5 mg·kg-1),with eight mice in each group.Eight db/m mice were selected as control group.Intragastric administration was given once a day for 12 consecutive weeks.Fasting blood glucose(FBG),total cholesterol(TC),triglyceride(TG),urinary albumin/creatinine ratio(ACR)and kidney index were measured.The pathological changes of renal tissue were observed by HE and Masson staining.The expressions of fibronectin(FN),type I collagen(Col I),Vimentin,α-smooth muscle actin(α-SMA),transforming growth factor-β1(TGF-β1),vascular endothelial growth factor receptor 3(VEGFR3),vascular endothelial growth factor-C(VEGF-C),lymphatic endothelial hyaluronic acid receptor 1(LYVE-1),podoplanin(PDPN),tumor necrosis factor-α(TNF-α)and interleukin-1β(IL-1β)in renal tissue were detected by immunohistochemistry.The protein expressions of Col I,Vimentin,α-SMA,TGF-β1,VEGFR3,VEGF-C,LYVE-1,TNF-αand IL-1βin renal tissue were detected by Western Blot.The mRNA expressions of FN,Col I,TGF-β1,VEGF-C,VEGFR3,TNF-αand IL-1βin renal tissue were detected by Real-time PCR.Results Compared with the control group,the levels of serum FBG,TG,TC,ACR and kidney index in the model group were significantly increased(P<0.05).Glomerular hypertrophy,mesangial matrix increased,basement membrane thickening,cystic cavity narrowing,renal tubular epithelial cell degeneration and necrosis,interstitial infiltration of a large number of inflammatory cells,renal tubular atrophy;the level of renal fibrosis was significantly increased(P<0.05).The protein expressions of FN,Col I,Vimentin,α-SMA,TGF-β
作者
黄家安
张孟娟
杨帆
刘妍
王月华
HUANG Jiaan;ZHANG Mengjuan;YANG Fan;LIU Yan;WANG Yuehua(Hebei University of Chinese Medicine,Shijiazhuang 050200 Hebei,China;Hebei Key Laboratory of Integrative Medicine on Liver-Kidney Patterns research,Shijiazhuang 050091 Hebei,China;Institute of Integrative Medicine,Hebei University of Chinese Medicine,Shijiazhuang 050091 Hebei,China)
出处
《中药新药与临床药理》
CAS
CSCD
北大核心
2024年第6期778-788,共11页
Traditional Chinese Drug Research and Clinical Pharmacology
基金
河北省自然科学基金项目(H2022423342)
河北省教育厅重点项目(ZD2021081)
河北省重点研发计划中医药创新专项(22377715OD)
