张舒慧, 杜金城, 李海云, 林玉坤, 杜钢军. 芪蛭降糖片对链脲佐菌素诱导大鼠糖尿病足溃疡的保护作用J. 药学学报, 2019,54(12): 2256-2266. doi: 10.16438/j.0513-4870.2019-0305
引用本文: 张舒慧, 杜金城, 李海云, 林玉坤, 杜钢军. 芪蛭降糖片对链脲佐菌素诱导大鼠糖尿病足溃疡的保护作用J. 药学学报, 2019,54(12): 2256-2266. doi: 10.16438/j.0513-4870.2019-0305
ZHANG Shu-hui, DU Jin-cheng, LI Hai-yun, LIN Yu-kun, DU Gang-jun. The protective effect of Qizhi hypoglycemic tablet on foot ulcer in streptozotocin-induced diabetes in ratsJ. Acta Pharmaceutica Sinica, 2019,54(12): 2256-2266. doi: 10.16438/j.0513-4870.2019-0305
Citation: ZHANG Shu-hui, DU Jin-cheng, LI Hai-yun, LIN Yu-kun, DU Gang-jun. The protective effect of Qizhi hypoglycemic tablet on foot ulcer in streptozotocin-induced diabetes in ratsJ. Acta Pharmaceutica Sinica, 2019,54(12): 2256-2266. doi: 10.16438/j.0513-4870.2019-0305

芪蛭降糖片对链脲佐菌素诱导大鼠糖尿病足溃疡的保护作用

The protective effect of Qizhi hypoglycemic tablet on foot ulcer in streptozotocin-induced diabetes in rats

  • 摘要: 观察芪蛭降糖片对糖尿病大鼠足溃疡的保护作用,探索其可能的作用机制。用链脲佐菌素诱导大鼠糖尿病模型,模型建立后采用人体等效日剂量的芪蛭降糖片、盐酸二甲双胍片和格列本脲片每日1次独立治疗3个月,治疗2个月后足面皮肤切除造足溃疡模型,观察糖尿病大鼠足溃疡愈合的动态变化,检测指标包括血糖、血清血管内皮生长因子(VEGF)、诱导型一氧化氮合酶(iNOS)、血浆中凝血因子Ⅲ(FⅢ)、凝血4项(凝血酶时间TT、活化部分凝血酶原时间APTT、凝血酶原时间PT、纤维蛋白原FIB)和创面愈合情况,网络药理学分析芪蛭降糖片保护糖尿病及其足溃疡的机制,免疫组化检测胰腺组织转化生长因子-β (TGF-β)和核因子κB(NF-κB)蛋白表达验证部分网络药理学预测的损伤保护机制。所有动物实验均经河南大学实验动物伦理委员会批准(许可证号为HUSAM 2016-288)。结果显示,模型大鼠一直保持高血糖状态,多饮多食多尿现象明显,体重进行性降低,血清VEGF和iNOS增高,血凝度增加,表现为FⅢ增加,TT、APTT、PT延长,FIB降低,足创面愈合缓慢。盐酸二甲双胍片和格列本脲片虽对高血糖、多饮多食多尿和消瘦有改善作用,但对高凝状态和创面愈合改善作用不明显。芪蛭降糖片降糖作用不及盐酸二甲双胍片和格列本脲片起效快,但改善多饮多食多尿和消瘦与二者相似,且明显改善高凝状态和创面愈合,降低血清VEGF和iNOS。网络药理学分析表明,芪蛭降糖片通过胰岛素抵抗通路降低高血糖,通过HIF-1通路改善血凝状态,通过VEGF通路、MAPK通路和NF-κB通路影响组织损伤过程阻止糖尿病足溃疡,免疫组化显示芪蛭降糖片能够抑制糖尿病大鼠胰腺组织TGF-β和NF-κB高表达,从而维护胰岛功能。本研究表明,芪蛭降糖片有保护胰岛损伤辅助治疗糖尿病和改善糖尿病大鼠足溃疡愈合作用,是应用前景较好的糖尿病足防治药物。

     

    Abstract: This study aimed to determine the protective effect of Qizhi hypoglycemic tablet (QZHGT) on foot ulcer in diabetic rats and explore its possible mechanism. Diabetes was induced by streptozotocin injection in rats. The rats received QZHGT (780 mg·kg-1), metformin hydrochloride tablet (Metf, 200 mg·kg-1) or glibenclamide tablet (Glib, 1.5 mg·kg-1) alone via intragastric administration once a day for three months. Food ulcer was prepared by foot skin excision after drug therapy lasted for two months, and the dynamic changes in food ulcer healing were determined. During the experiment, blood glucose, serum levels of vascular endothelial growth factor (VEGF) and inducible nitric oxide synthase (iNOS), factor Ⅲ (FⅢ) and four coagulation parametersthrombin time (TT), activated partial thromboplatin time (APTT), prothrombin time (PT), fibrinogen (FIB) were detected. Finally, the protective mechanisms of QZHGT against diabetes and foot ulcer were analyzed by network pharmacology, and immunohistochemistry was used to confirm the expression of transforming growth factor-β (TGF-β) and nuclear factor κB (NF-κB) in pancreatic tissue. All animal procedures were approved by the Animal Experimentation Ethics Committee of Henan University (permission number HUSAM 2016-288). The results showed that the lasting hyperglycemia, polydipsia, polyphagia, polyuria and body weight lost took place in model rats compared to those in normal rats. These model rats also showed an increase in serum VEGF and iNOS, FⅢ, TT, APTT and PT, and a reduction in FIB and wound healing. Metf or Glib significantly improved hyperglycemia, polydipsia, polyphagia, polyuria and emaciation, but failed to ameliorate hypercoagulation and wound healing. QZHGT showed a similar effect on polydipsia, polyphagia, polyuria and emaciation to Metf or Glib, although it was inferior to them in hypoglycemic action. Importantly, QZHGT significantly improved hypercoagulation and wound healing, and attenuated serum VEGF and iNOS. Network pharmacology revealed that QZHGT decreased hyperglycemia through "insulin resistance pathway", improved coagulation status through "HIF-1 signaling pathway", prevented diabetic foot ulcers through "VEGF signaling pathway", "MAPK signaling pathway" and "NF-κB signaling pathway". Immunohistochemistry showed that QZHGT could inhibit the expression of TGF-β and NF-κB in pancreatic tissue to maintain islet function in diabetic rats. In summary, these data suggest that QZHGT can prevent pancreatic injury for adjunctive hypoglycemia and diabetic foot ulcer treatment, and is a better preventive and therapeutic drug for diabetic foot ulcer.

     

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