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脑震宁颗粒调节三重脑震荡大鼠线粒体能量代谢的机制研究
                                                                                                        Δ


          高 丽 ,赵 乐,魏楠楠,武立雅,王恬恬,张唯依,王永辉(山西中医药大学基础医学院,山西 晋中 030619)
                *
                                                               #
          中图分类号  R965;R285.5      文献标志码  A      文章编号  1001-0408(2024)09-1050-07
          DOI  10.6039/j.issn.1001-0408.2024.09.05


          摘   要  目的  探究脑震宁颗粒调节三重脑震荡(MCC)模型大鼠海马组织线粒体能量代谢的作用机制。方法  取SPF级Wistar大
          鼠,通过“自由落体撞击法”制备MCC模型。将造模成功的大鼠分为模型组、吡拉西坦组和脑震宁颗粒低、中、高剂量组,另设正常
          组,每组8只。各给药组大鼠按吡拉西坦组0.324 g/kg,脑震宁颗粒低、中、高剂量组2.25、4.5、9 g/kg的剂量灌服相应药物,正常组
          和模型组给予等体积生理盐水,每天 1 次,连续 14 d。检测大鼠运动探索能力和学习记忆能力;检测大鼠海马组织三磷酸腺苷
         (ATP)含量;观察大鼠海马组织线粒体结构变化;检测大鼠海马组织线粒体动力蛋白相关蛋白 1(Drp1)、线粒体裂变蛋白1(Fis1)、
          线粒体融合蛋白1(Mfn1)、视神经萎缩蛋白1(Opa1)的荧光强度;检测大鼠海马组织过氧化物酶体增殖物激活受体γ共激活因子
          1α(PGC-1α)、核呼吸因子1(NRF-1)、线粒体转录因子A(TFAM)、Wnt-3a、β-连环蛋白(β-catenin)的蛋白表达水平。结果  与正常
          组比较,模型组大鼠的运动总路程、中央格进入次数、直立次数,新物体识别指数,海马组织线粒体ATP含量,Mfn1、Opa1的荧光强
          度及PGC-1α、NRF-1、TFAM、Wnt-3a、β-catenin蛋白表达水平均显著降低(P<0.01),静止时间和海马组织Drp1、Fis1的荧光强度
          均显著升高(P<0.01);透射电镜结果显示,海马组织线粒体明显肿胀,嵴大量断裂、减少,部分线粒体膜内髓样变。与模型组比
          较,各给药组大鼠以上指标水平/含量均有不同程度的逆转,大部分差异有统计学意义(P<0.05或P<0.01);透射电镜结果显示,
          海马组织线粒体肿胀程度减轻,嵴少量断裂、减少,粗面内质网局部区域模糊断裂。结论  脑震宁颗粒可以提高MCC模型大鼠的
          运动探索和学习记忆能力,修复神经元损伤,发挥神经保护作用;其机制可能与激活Wnt/β-catenin信号通路,维持线粒体融合分裂
          平衡,促进线粒体生物合成相关。
          关键词  脑震宁颗粒;三重脑震荡;线粒体;Wnt/β-catenin信号通路;海马组织;神经保护

          Mechanism  of  Naozhenning  granules  in  regulating  mitochondrial  energy  metabolism  in  multiple  cerebral
          concussion rats
          GAO Li,ZHAO Le,WEI Nannan,WU Liya,WANG Tiantian,ZHANG Weiyi,WANG Yonghui(Basic  Medical
          College, Shanxi University of Chinese Medicine, Shanxi Jinzhong 030619, China)

          ABSTRACT    OBJECTIVE To explore the mechanism of Naozhenning granules in regulating mitochondrial energy metabolism in

          hippocampal  tissue  of  multiple  cerebral  concussion (MCC)  model  rats.  METHODS  SPF  grade  Wistar  rats  were  used  to  prepare
          MCC models using the “free fall impact method”. The successfully modeled rats were divided into model group, piracetam group,
          and Naozhenning granule low-dose, medium-dose and high-dose groups, and a normal group was also set up, with 8 rats in each
          group.  Rats  in  each  treatment  group  orally  administered  corresponding  drugs  at  doses  of  0.324  g/kg  for  the  piracetam  group  and
          2.25,  4.5  and  9  g/kg  for  the  Naozhenning  granule  low-dose,  medium-dose  and  high-dose  groups;  the  normal  group  and  model
          group were given equal volumes of normal saline; once a day, for 14 consecutive days. The motor exploration ability, learning and
          memory  ability  of  rats  were  tested;  the  adenosine  triphosphate (ATP)  content  in  the  hippocampal  tissue  of  rat  was  detected;  the
          changes  in  the  mitochondrial  structure  of  hippocampal  tissue  was  observed;  the  fluorescence  intensity  of  mitochondrial  dynamin-
          related  protein  1 (Drp1),  mitochondrial  fission  protein  1 (Fis1),  mitochondrial  fusion  1 (Mfn1),  and  optic  atrophy  protein  1
         (Opa1)  were  detected  in  the  hippocampal  tissue  of  rat;  the  protein  expression  levels  of  peroxisome  proliferator  activated
          receptor  gamma  coactivator-1α(PGC-1α),  nuclear  respiratory  factor-1(NRF-1),mitochondrial  transcription  factor  A(TFAM),
                                                              Wnt-3a,β-catenin  in  hippocampal  tissue  of  rat  were  detected.
              Δ 基金项目 国家自然科学基金项目(No.82104972);山西省卫生
                                                              RESULTS  Compared  with  the  normal  group,  the  total
          健康委员会中医药重点研究室建设项目(No.zyyyjs2024023);山西省
          中医药管理局科研课题(No.2022ZYYC267);山西中医药大学博士科               exercise  distance,  number  of  central  grid  entries,  number  of
          研启动基金项目(No.2022BK19);山西中医药大学科技创新能力培育                upright  positions,  new  object  recognition  index,  mitochondrial
          计划(No.2023PY-YS-03)                                 ATP  content,  fluorescence  intensity  of  Mfn1  and  Opa1,  the
             *第一作者 副教授,硕士生导师,博士。研究方向:方剂的现代药
                                                              protein  expression  levels  of  PGC-1α、NRF-1、TFAM、Wnt-3a、
          理作用及其物质基础。E-mail:342014263@qq.com
              # 通信作者 教授,硕士生导师,博士。研究方向:方剂的现代药理                 β-catenin  in  the  model  group  were  significantly  reduced (P<
          作用及其物质基础。E-mail:wyh766188@sina.com                  0.01),  while  the  rest  time  and  fluorescence  intensity  of  Drp1


          · 1050 ·    China Pharmacy  2024 Vol. 35  No. 9                              中国药房  2024年第35卷第9期
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