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·药学研究·


          川芎嗪-灯盏乙素苷元孪药对脑缺血再灌注损伤模型大鼠的保护
          作用及机制研究
                                   Δ


                                                                      #
          陈莉娜 ,文金兰,张善惠,鲁 俊,赵福会,龙铁梅,董 莉,董永喜(贵州医科大学药学院,贵阳 550025)
                *
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)15-1804-05
          DOI  10.6039/j.issn.1001-0408.2023.15.03

          摘   要  目的  研究川芎嗪-灯盏乙素苷元孪药(TMSC4)对脑缺血再灌注损伤(CIRI)模型大鼠的保护作用及机制。方法  将105
          只SD大鼠随机分为假手术组、模型组、灯盏乙素苷元组(0.7 mmol/kg)、川芎嗪组(0.7 mmol/kg)和TMSC4低、中、高剂量组(0.35、
          0.7、1.4 mmol/kg),每组15只。假手术组、模型组大鼠灌胃等体积生理盐水,其余各组大鼠灌胃相应药物,每天1次,连续 14 d。除
          假手术组外,其余各组大鼠均采用线栓法建立CIRI模型。大鼠缺血2 h再灌注22 h后,测定大鼠脑指数及脑含水量;检测大鼠血
          清中白细胞介素1β(IL-1β)、IL-6、肿瘤坏死因子α(TNF-α)的水平,脑组织中超氧化物歧化酶(SOD)、丙二醛(MDA)、 谷胱甘肽过
          氧化氢酶(GSH-Px)、过氧化氢酶(CAT)的水平和大脑皮层神经细胞的凋亡情况以及 B 细胞淋巴瘤 2(Bcl-2)、Bcl-2 相关 X 蛋白
         (Bax)、活化型胱天蛋白酶3(cleaved-caspase-3)蛋白表达水平。结果  与假手术组比较,模型组大鼠脑指数和脑含水量,血清中IL-
          1β、IL-6、TNF-α水平以及脑组织中MDA水平,神经细胞凋亡率,Bax、cleaved-caspase-3蛋白表达水平均显著升高(P<0.05);脑组
          织中SOD、 GSH-Px、CAT水平和Bcl-2蛋白表达水平均显著降低(P<0.05)。与模型组比较,各给药组大鼠上述指标水平均显著逆
          转(P<0.05),且TMSC4中、高剂量组的逆转作用显著优于灯盏乙素苷元组和川芎嗪组(P<0.05)。结论  TMSC4对CIRI模型大
          鼠具有保护作用,其作用机制可能与减轻炎症反应、氧化应激损伤,抑制神经细胞凋亡有关。
          关键词  川芎嗪;灯盏乙素苷元;孪药;脑缺血再灌注损伤;神经保护;大鼠

          Study  on  protective  effects  of  twin  drugs  of  tetramethylpyrazine-scutellarein  on  cerebral  ischemia-
          reperfusion injury model rats and its mechanism
          CHEN Lina,WEN Jinlan,ZHANG Shanhui,LU Jun,ZHAO Fuhui,LONG Tiemei,DONG Li,DONG Yongxi
         (School of Pharmacy, Guizhou Medical University, Guiyang 550025, China)

          ABSTRACT    OBJECTIVE To study the protective effects of twin drugs of tetramethylpyrazine-scutellarein (TMSC4) on cerebral
          ischemia-reperfusion  injury (CIRI)  model  rats  and  its  mechanism.  METHODS  One  hundred  and  five  SD  rats  were  randomly
          divided  into  sham  operation  group,  model  group,  scutellarein  group (0.7  mmol/kg),  tetramethylpyrazine  group (0.7  mmol/kg),
          and TMSC4 low-dose, medium-dose and high-dose groups (0.35, 0.7, 1.4 mmol/kg), with 15 rats in each group. Sham operation
          group  and  model  group  were  given  constant  volume  of  normal  saline  intragastrically,  and  other  groups  were  given  relevant  drug
          intragastrically,  once  a  day,  for  consecutive  14  d.  Except  for  sham  operation  group,  all  other  groups  were  treated  to  establish  the
          CIRI  model  using  the  thread  occlusion  method. After  2  hours  of  ischemia  and  22  hours  of  reperfusion,  the  brain  index  and  brain
          water content of the rats were measured. Serum levels of interleukin 1β (IL-1β), IL-6 and tumor necrosis factor α (TNF-α), the
          levels  of  superoxide  dismutase (SOD),  malondialdehyde (MDA),  glutathione  peroxidase (GSH-Px)  and  catalase (CAT)  in  brain
          tissues,  the  situation  of  neuronal  cell  apoptosis,  and  the  protein  expressions  of  B-cell  lymphoma  2 (Bcl-2),  Bcl-2-associated  X
          protein (Bax)  and  cleaved-caspase-3  were  evaluated.  RESULTS  Compared  with  sham  operation  group,  the  brain  index,  brain
          water  content,  the  serum  levels  of  IL-1β,  IL-6  and  TNF-α,  the  levels  of  MDA  in  brain  tissues,  the  brain  cell  apoptosis  and  the
          protein expressions of Bax and cleaved-caspase-3 in model group were significantly increased (P<0.05); the levels of SOD, GSH-
          Px  and  CAT  and  the  protein  expression  of  Bcl-2  in  brain  tissues  were  significantly  decreased (P<0.05).  Compared  with  model
          group,  the  above  indexes  of  rats  were  reversed  significantly  in  administration  groups (P<0.05),  while  the  reverse  effects  of
                                                              TMSC4  medium-dose  and  high-dose  groups  were  significantly
                                                              better  than  those  of  scutellarein  group  and  tetramethylpyrazine
              Δ 基金项目 国家自然科学基金资助项目(No.81960630);贵州省
                                                              group (P<0.05).  CONCLUSIONS  TMSC4  has  a  certain
          卫生健康委员会科学技术基金项目(No.gzwkj2021-448);贵州省普通
                                                              protective  effect  in  CIRI  model  rats,  the  mechanism  of  which
          高等学校青年科技人才成长项目(No.黔教合KY字〔2021〕164)
             *第一作者 硕士研究生。研究方向:先导化合物结构优化及生物                    may  be  related  to  relieving  inflammatory  reaction  and
          活性。电话:0851-88416153。E-mail:2693189089@qq.com        oxidative stress, inhibiting cell apoptosis.
              # 通信作者 副教授,硕士生导师,博士。研究方向:天然活性产物                 KEYWORDS    tetramethylpyrazine;  scutellarein;  twin  drugs;
          结构修饰。电话:0851-88416153。E-mail:dongyx01@163.com       cerebral ischemia-reperfusion injury; neuroprotective effect; rat


          · 1804 ·    China Pharmacy  2023 Vol. 34  No. 15                            中国药房  2023年第34卷第15期
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