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银杏叶提取物对糖尿病肾病模型小鼠肾脏炎症的抑制作用及

          机制     Δ



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          陈 璟    1, 2* ,杨小艺 ,陈 静 ,单 鑫 ,汪 洁 ,许惠琴 ,吕志阳 (1.南京中医药大学翰林学院药学院,江苏
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          泰州 225300;2.南京中医药大学药学院,南京 210023)
          中图分类号  R965;R285.5      文献标志码  A      文章编号  1001-0408(2024)02-0186-06
          DOI  10.6039/j.issn.1001-0408.2024.02.11
          摘   要  目的  探讨银杏叶提取物(GBE)抑制糖尿病肾病(DN)模型小鼠肾脏炎症的作用及其可能机制。方法  以高脂高糖喂养
          KK/Ay小鼠建立DN模型,并分为模型组、阳性对照组[二甲双胍200 mg/(kg·d)]和GBE低、高剂量组[100、200 mg/(kg·d)],每组6
          只;另取普通饲料喂养的C57BL/6J小鼠6只,作为对照组。各药物组小鼠灌胃相应药液,对照组和模型组小鼠灌胃等体积生理盐
          水,每天1次,连续8周。检测小鼠的体重、空腹血糖、24 h摄食量、24 h尿量和血清单核细胞趋化蛋白1(MCP-1)、白细胞介素12
         (IL-12)、IL-10、晚期糖基化终末产物(AGEs)、血尿素氮(BUN)、血肌酐(Scr)水平,计算其双侧肾脏质量与体重的比值,观察其肾
          皮质的病理损伤和纤维化改变,并检测其肾皮质中巨噬细胞极化标志蛋白[M1型:诱导型一氧化氮合酶(iNOS);M2型:精氨酸酶
          1(Arg-1)]和AGEs-晚期糖基化终末产物受体(RAGE)/Ras同源基因家族成员A(RhoA/)/Rho相关螺旋卷曲蛋白激酶(ROCK)信号
          通路相关蛋白的表达情况。结果  与模型组比较,GBE低、高剂量组小鼠肾皮质增生、空泡、炎症细胞浸润、肾皮质纤维化等症状
          均有所好转;其体重、血清IL-10水平、肾皮质中Arg-1蛋白的表达水平均显著高于模型组(P<0.01);空腹血糖和24 h摄食量、尿
          量,血清 MCP-1、IL-12、BUN、Scr、AGEs 水平,双侧肾脏质量与体重的比值,肾损伤评分和肾间质纤维化比例,肾皮质中 iNOS、
          RAGE、RhoA、ROCK1(GBE低剂量组除外)蛋白的表达水平均显著低于模型组(P<0.01)。结论  GBE可改善DN模型小鼠的肾
          损伤,并减轻其炎症反应,其机制可能与抑制AGEs-RAGE/RhoA/ROCK信号通路、调节巨噬细胞极化有关。
          关键词  银杏叶提取物;糖尿病肾病;炎症反应;巨噬细胞极化;晚期糖基化终末产物-晚期糖基化终末产物受体/Ras同源基因家
          族成员A/Rho相关螺旋卷曲蛋白激酶信号通路


          Inhibitory  effects  of  Ginkgo  biloba  extract  on  renal  inflammation  in  diabetic  nephropathy  model  mice  and
          its mechanism
          CHEN Jing ,YANG Xiaoyi ,CHEN Jing ,SHAN Xin ,WANG Jie ,XU Huiqin ,LYU Zhiyang(1.  School  of
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          Pharmacy, Nanjing University of Chinese Medicine Hanlin College, Jiangsu Taizhou 225300, China; 2. College
          of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China)
          ABSTRACT    OBJECTIVE To investigate the inhibitory effects of Ginkgo biloba extract (GBE) on renal inflammation in diabetic
          nephropathy (DN)  model  mice,  and  its  potential  mechanism.  METHODS  KK/Ay  mice  were  fed  with  high  fat  and  high  sugar  to
          induce  DN  model.  They  were  divided  into  model  group,  positive  control  group  [metformin  200  mg/(kg·d)],  GBE  low-dose  and
          high-dose groups [100, 200 mg/(kg·d)], with 6 mice in each group. Six C57BL/6J mice were fed with a regular diet as the control
          group. Administration groups were given relevant liquid intragastrically, control group and model group were given constant volume
          of  normal  saline  intragastrically,  once  a  day,  for  8  consecutive  weeks.  The  body  weight,  fasting  blood  glucose,  24-hour  food
          intake,  24-hour  urine  output,  monocyte  chemoattractant  protein-1 (MCP-1),  interleukin-12 (IL-12),  IL-10,  advanced  glycation
          end  products (AGEs),  blood  urea  nitrogen (BUN)  and  serum  creatinine (Scr)  of  mice  were  measured,  and  the  ratio  of  bilateral
                                                              kidneys  to  body  weight  was  also  calculated.  The  pathological
              Δ 基金项目 江苏高校“青蓝工程”培养对象项目(No. 苏教师函
                                                              injury  and  fibrotic  changes  of  the  renal  cortex  were  observed,
          〔2021〕11 号);江苏省中医药科技发展计划项目(No.YB2020108);江
                                                              and  the  expressions  of  macrophage  polarization  marker
          苏省高等学校基础科学(自然科学)研究面上项目(No.22KJB360014);
          江苏省大学生创新创业训练计划立项项目(No.202313981005Y);泰州             proteins  [type  M1:  inducible  nitric  oxide  synthase (iNOS);
          市科技支撑计划(社会发展)项目(No.SSF20220004)                     type  M2:  arginase-1  (Arg-1)]  and  AGEs-the  receptor  of
             *第一作者 副教授,博士。研究方向:内分泌药理。E-mail:
                                                              advanced  glycation  end  products (RAGE)/Ras  homolog  gene
          pharm_chenjing@163.com
              # 通信作者 副教授,博士。研究方向:药物新型给药系统及适宜                  family  member  A (RhoA)/Rho-associated  coiled-coil  forming
          性。E-mail:lvpharm@163.com                            protein  kinase  (ROCK)  signaling  pathway-related  proteins


          · 186 ·    China Pharmacy  2024 Vol. 35  No. 2                               中国药房  2024年第35卷第2期
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