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穿心莲内酯调节 HMGB1/RAGE 信号通路对糖尿病周围神经病

          变大鼠坐骨神经功能损伤的影响
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          孙跃先 ,王九妹 ,崔新刚 ,于 晶 (1.黑龙江省牡丹江林业中心医院骨科,黑龙江 牡丹江 157011;2.牡丹
                 1*
                                           4 #
                                   3
                           2
          江医学院附属红旗医院皮肤性病科,黑龙江 牡丹江 157000;3.牡丹江医学院公共卫生学院,黑龙江 牡丹江
          157011;4.牡丹江医学院附属红旗医院内分泌科,黑龙江 牡丹江 157000)

          中图分类号  R965;R285      文献标志码  A      文章编号  1001-0408(2024)05-0572-06
          DOI  10.6039/j.issn.1001-0408.2024.05.11
          摘   要  目的  探讨穿心莲内酯调节高迁移率族蛋白B1(HMGB1)/晚期糖基化终产物受体(RAGE)信号通路对糖尿病周围神经
          病变(DPN)大鼠坐骨神经功能损伤的影响。方法  将84只大鼠随机分为对照组(生理盐水)、DPN组(生理盐水)、穿心莲内酯低剂
          量组(0.833 mg/kg)、穿心莲内酯高剂量组(3.332 mg/kg)、硫辛酸组(阳性对照,0.1 g/kg)、重组大鼠HMGB1蛋白(rHMGB1,8 μg/kg)
          组、穿心莲内酯高剂量+rHMGB1组,每组12只。除对照组外,其余各组大鼠均采用高糖高脂饲料喂养联合腹腔注射链脲佐菌素
          的方式构建DPN模型。造模成功24 h后,进行给药处理,每天1次,持续8周。给药结束后,检测大鼠空腹血糖、机械痛阈值、热痛
          阈值、坐骨神经传导速度的变化;观察大鼠坐骨神经病理变化;检测大鼠坐骨神经中超氧化物歧化酶(SOD)活性及丙二醛(MDA)
          含量;检测大鼠坐骨神经中HMGB1、RAGE蛋白表达水平和核因子κB p65(NF-κB p65)蛋白磷酸化水平。结果  与对照组比较,
          DPN组大鼠坐骨神经病理损伤严重,空腹血糖、热痛阈值、MDA含量及HMGB1、RAGE蛋白表达水平和NF-κB p65蛋白磷酸化水
          平均显著升高(P<0.05),机械痛阈值、感觉神经传导速度、运动神经传导速度、SOD 活性显著降低/减慢(P<0.05);与 DPN 组比
          较,穿心莲内酯低、高剂量组和硫辛酸组大鼠上述指标均显著改善(P<0.05),rHMGB1组对应指标变化趋势与上述3个给药组相
          反(P<0.05);并且,rHMGB1 可减弱高剂量穿心莲内酯对 DPN 大鼠血糖的降低作用及坐骨神经氧化应激损伤的改善作用(P<
          0.05)。结论  穿心莲内酯可能通过抑制HMGB1/RAGE信号通路来降低血糖、抑制氧化应激,进而改善DPN大鼠坐骨神经损伤。
          关键词  穿心莲内酯;糖尿病周围神经病变;高迁移率族蛋白B1;晚期糖基化终产物受体;坐骨神经;氧化应激

          Impacts  of  andrographolide  on  sciatic  nerve  function  damage  in  diabetic  peripheral  neuropathy  rats  by
          regulating HMGB1/RAGE signaling pathway
          SUN Yuexian ,WANG Jiumei ,CUI Xingang ,YU Jin(1.  Dept.  of  Orthopaedics,  Heilongjiang  Mudanjiang
                      1
                                                            4
                                     2
                                                   3
          Forestry  Central  Hospital,  Heilongjiang  Mudanjiang  157011,  China;2.  Dept.  of  Dermatology  and Venereology,
          Hongqi  Hospital  Affiliated  to  Mudanjiang  Medical  University,  Heilongjiang  Mudanjiang  157000,  China;
          3.  School  of  Public  Health,  Mudanjiang  Medical  University,  Heilongjiang  Mudanjiang  157011,  China;4.  Dept.
          of  Endocrinology,  Hongqi  Hospital  Affiliated  to  Mudanjiang  Medical  University,  Heilongjiang  Mudanjiang
          157000, China)

          ABSTRACT    OBJECTIVE  To  investigate  the  impacts  of  andrographolide  on  sciatic  nerve  function  injury  in  diabetic  peripheral
          neuropathy (DPN)  rats  by  regulating  high-mobility  group  protein  box  1 (HMGB1)/receptor  for  advanced  glycation  end  products
         (RAGE) signal pathway. METHODS A total of 84 rats were randomly divided into the control group (normal saline), DPN group
         (normal  saline),  low-dose  andrographolide  group (0.833  mg/kg),  high-dose  andrographolide  group (3.332  mg/kg),  lipoic  acid
          group (positive control, 0.1 g/kg), recombinant rat HMGB1 protein (rHMGB1) group (8 μg/kg), and high-dose andrographolide+
          rHMGB1 group, with 12 rats in each group. All rats except those in the control group were fed with high glucose and high fat diet
          combined  with  intraperitoneal  injections  of  streptozotocin  to  establish  the  DPN  rat  model. After  24  hours  of  successful  modeling,
          medication  was  administered  daily  for  8  weeks.  The  changes  in  fasting  blood  glucose,  mechanical  pain  threshold,  heat  pain
          threshold  and  sciatic  nerve  conduction  velocity  were  detected.  Pathological  changes  in  the  sciatic  nerve  of  rats  and  the  activity  of
          superoxide  dismutase (SOD)  and  the  content  of  malondialdehyde (MDA)  in  the  sciatic  nerve  of  rats  were  also  detected.  Besides,
                                                              the   expressions   of   HMGB1,   RAGE   proteins   and
                                                              phosphorylation  level  of  nuclear  factor  κB  p65(NF- κB  p65)
              Δ 基金项目 黑龙江省省属高等学校基本科研业务费科研项目
         (No.2021-KYYWF-0515)                                 protein  in  rat  sciatic  nerves  were  found.  RESULTS  Compared
             *第一作者 副主任医师,硕士。研究方向:脊柱外科、关节外科等                   with  the  control  group,  the  pathological  damage  of  the  sciatic
          骨科疾病诊治。电话:0453-6513151。E-mail:ria011@163.com        nerve  of  rats  in  the  DPN  group  was  strengthened,  the  fasting
              # 通信作者 副主任医师,硕士。研究方向:糖尿病及其并发症的                  blood  glucose,  heat  pain  threshold,  MDA  content  and  the
          诊治。E-mail:dqiaur@163.com                            expressions  of  HMGB1,  RAGE  proteins  and  phosphorylation


          · 572 ·    China Pharmacy  2024 Vol. 35  No. 5                               中国药房  2024年第35卷第5期
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