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·药学研究·


          梓醇调控糖酵解改善KK-Ay自发性糖尿病小鼠睾丸病变的作用
          及机制
                     Δ


                                   2
                                           1
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                 1*
          陈玉萍 ,束安梅 ,许惠琴 ,蒋 鸣 ,朱逸晖(1.江苏医药职业学院基础医学部,江苏 盐城 224005;2.南京中
                           1
          医药大学药学院,南京 210023)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)07-0784-07
          DOI  10.6039/j.issn.1001-0408.2023.07.04

          摘   要  目的  基于晚期糖基化终末产物(AGEs)及其受体(RAGE)介导的糖酵解过程,研究梓醇对KK-Ay自发性糖尿病小鼠睾
          丸病变的改善作用及机制。方法  以高脂饲料喂养的 KK-Ay 自发性糖尿病小鼠作为糖尿病模型,随机分为模型组、梓醇组(100
          mg/kg)、氨基胍组(AGEs 抑制剂,100 mg/kg)和 FPS-ZM1 组(RAGE 抑制剂,1 mg/kg),并将同期饲养的 C57BL/6J 小鼠作为正常
          组,每组6只。梓醇组和氨基胍组小鼠灌胃相应药物,正常组和模型组小鼠灌胃等量生理盐水,FPS-ZM1组小鼠以1 mL/g腹腔注
          射相应药物,连续8周。末次给药后,检测小鼠体质量、空腹血糖和24 h摄食量、饮水量、尿量以及睾丸脏器系数、精子活力;观察
          小鼠睾丸组织病理形态学和超微结构;检测小鼠睾丸组织中还原型谷胱甘肽(GSH)、超氧化物歧化酶(SOD)、乳酸脱氢酶(LDH)
          和糖代谢产物水平,并进行通路的富集分析;检测小鼠血清和睾丸组织中AGEs水平,睾丸组织中RAGE、B细胞淋巴瘤2(Bcl-2)、
          Bcl-2相关X蛋白(Bax)表达水平以及糖酵解关键限速酶[己糖激酶(HK)、磷酸果糖激酶(PFK)、丙酮酸激酶(PK)、LDH]相应
          mRNA 表达水平。结果  经梓醇干预后,KK-Ay自发性糖尿病小鼠的一般体征、睾丸脏器系数及精子活力均显著改善(P<0.05或
          P<0.01);生精小管中各层生精细胞的形态以及超微结构均有所改善;睾丸组织中GSH、SOD、LDH水平,糖代谢产物果糖-1,6-二
          磷酸、3-磷酸甘油酸、3-磷酸甘油醛、乳酸、丙酮酸水平,以及 HK、PFK、PK、LDH mRNA 表达水平均显著升高(P<0.05 或 P<
          0.01);血清和睾丸组织中AGEs水平、睾丸组织中RAGE蛋白表达水平和Bax/Bcl-2均显著降低(P<0.05或P<0.01)。经氨基胍
          和FPS-ZM1干预后,小鼠上述大部分指标均显著改善(P<0.05或P<0.01)。结论  梓醇对KK-Ay自发性糖尿病小鼠睾丸病变有
          明显的改善作用,其作用机制可能与上调AGEs/RAGE信号通路介导的糖酵解有关。
          关键词  梓醇;糖酵解;糖尿病;睾丸病变;晚期糖基化终末产物;晚期糖基化终末产物受体

          Improvement  effects  and  its  mechanism  of  catalpol  on  testicular  lesions  in  KK-Ay  spontaneous  diabetic
          mice by regulating glycolysis
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          CHEN Yuping ,SHU Anmei ,XU Huiqin ,JIANG Ming ,ZHU Yihui(1.  Center  of  Basic  Medicine,  Jiangsu
                                                2
                                    1
          Vocational College of Medicine, Jiangsu Yancheng 224005, China;2. College of Pharmacy, Nanjing University
          of Traditional Chinese Medicine, Nanjing 210023, China)
          ABSTRACT    OBJECTIVE  To  study  the  improvement  effects  and  its  mechanism  of  catalpol  on  testicular  lesions  in  KK-Ay
          spontaneous  diabetic  mice  on  the  basis  of  glycolysis  process  mediated  by  advanced  glycation  end  products (AGEs)  and  their
          receptors (RAGE).  METHODS  KK-Ay  spontaneous  diabetic  mice  fed  with  high-fat  diet  were  used  as  diabetic  model,  and  then
          randomly  divided  into  model  group,  catalpol  group (100  mg/kg),  aminoguanidine  group (AGEs  inhibitor,  100  mg/kg)  and  FPS-
          ZM1  group (RAGE  inhibitor,  1  mg/kg),  and  C57BL/6J  mice  fed  in  the  same  period  were  set  as  normal  group,  with  6  mice  in
          each  group.  The  catalpol  group  and  aminoguanidine  group  mice  were  given  relevant  medicine  intragastrically,  normal  group  and
          model  group  mice  were  given  constant  volume  of  normal  saline  intragastrically,  and  FPS-ZM1  group  mice  were  given  relevant
          medicine  1  mL/g  intraperitoneally,  for  consecutive  8  weeks. After  the  last  administration,  the  body  mass,  fasting  blood  glucose,
          24-hour  food  intake,  water  consumption,  urine  volume,  testicular  organ  coefficient,  and  sperm  motility  of  the  mice  were
          measured; pathological morphology and ultrastructural structure of testicular tissue were observed; the levels of reduced glutathione
         (GSH),  superoxide  dismutase (SOD),  lactate  dehydrogenase (LDH)  and  sugar  metabolites  in  testicular  tissue  of  mice  were
          detected;  pathway  enrichment  analysis  was  performed;  the  level  of  AGEs  in  serum  and  testicular  tissue,  protein  expressions  of
                                                              RAGE,  B-cell  lymphoma-2 (Bcl-2)  and  Bcl-2-associated  X

              Δ 基金项目 国家自然科学基金资助项目(No.81903879);江苏高            protein (Bax),  and  mRNA  expressions  of  key  rate-limiting
          校“青蓝工程”中青年学术带头人项目(No.苏教师函2021〔11〕号);江               enzymes  [hexokinase (HK),  phosphofructose  kinase (PFK),
          苏医药职业学院教育科学研究立项课题(No.Y202101)                       pyruvate  kinase (PK),  LDH]  in  testicular  tissue  were  all
             *第一作者 副教授,博士。研究方向:中药内分泌药理学。E-                    detected.  RESULTS  Catalpol  could  significantly  improve  the
          mail:chenyuping1985@126.com                         general  symptoms,  testicular  organ  coefficients  and  motility  of


          · 784 ·    China Pharmacy  2023 Vol. 34  No. 7                               中国药房  2023年第34卷第7期
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