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杜仲改善大鼠产后抑郁的作用机制研究
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          李玉洁 ,陈文静 ,张 岚 ,吴英真 ,许永杰 ,王小兰 ,侯俊林 ,杨丽萍 (1. 河南中医药大学医学院,郑州
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          450046;2.河南中医药大学中医学院,郑州 450046;3.河南中医药大学中医科学院,郑州 450046)
          中图分类号  R965;R285.5      文献标志码  A      文章编号  1001-0408(2024)11-1303-06
          DOI  10.6039/j.issn.1001-0408.2024.11.04
          摘  要  目的  探讨杜仲改善大鼠产后抑郁的作用机制。方法  受孕雌鼠随机分为正常组、产后抑郁组和杜仲低、高剂量组(1.34、
          2.68 g/kg,以生药计),每组10只。除正常组外其余各组大鼠运用孕期旁观电击法建立产后抑郁大鼠模型;造模的同时,给药组大
          鼠灌胃相应药物,正常组及产后抑郁组大鼠灌胃生理盐水,持续21 d。观察各组大鼠实验期间的一般情况,通过旷场实验、Morris
          水迷宫实验和糖水偏好实验进行行为学评价,检测各组大鼠血清中皮质酮(CORT)、下丘脑中促肾上腺皮质激素释放因子(CRF)
          和尿皮质素(UCN)、垂体中促肾上腺皮质激素(ACTH)水平,以及海马组织中CRF受体1(CRFR1)、CRFR2及电压依赖性阴离子
          通道1(VDAC1)蛋白表达水平,海马组织凋亡细胞比例及JC-1高电位细胞比例,并观察海马组织形态。结果  与产后抑郁组比较,
          杜仲高剂量组大鼠食欲、精神、毛色均有所改善,体重有所增加;垂直运动、水平运动、自我梳理得分均显著升高(P<0.05);第2~4
          天逃避潜伏期均显著缩短;穿越平台次数显著增加,每次穿越时间显著延长(P<0.05);孕20 d及产后30 d糖水消耗比率显著升高
         (P<0.05);CRF、UCN、ACTH、CORT 水平,噬仔率,CRFR2、VDAC1 蛋白表达水平,海马组织凋亡细胞比例均显著降低(P<
          0.05);JC-1高电位细胞比例显著升高(P<0.05);神经元细胞周围水肿现象明显改善。结论  杜仲可能通过抑制下丘脑-垂体-肾上
          腺轴的过度激活,降低CRFR2的表达水平,进而抑制VDAC1的表达,并减少神经元细胞的凋亡,从而改善产后抑郁症状。
          关键词  杜仲;产后抑郁;下丘脑-垂体-肾上腺轴;促肾上腺皮质激素释放因子受体;电压依赖性阴离子通道1;神经元细胞

          Regulatory effect mechanism of Eucommia ulmoides on postpartum depression in rats
          LI Yujie ,CHEN Wenjing ,ZHANG Lan ,WU Yingzhen ,XU Yongjie ,WANG Xiaolan ,HOU Junlin ,
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          YANG Liping(1.  School  of  Medical  Medicine,  Henan  University  of  Chinese  Medicine,  Zhengzhou  450046,
          China;2.  School  of Traditional  Chinese  Medicine,  Henan  University  of  Chinese  Medicine,  Zhengzhou  450046,
          China;3. Academy  of  Chinese  Medical  Sciences,  Henan  University  of  Chinese  Medicine,  Zhengzhou  450046,
          China)
          ABSTRACT   OBJECTIVE  To  explore  the  effect  mechanism  of  Eucommia  ulmoides  on  improving  postpartum  depression  in  rats.
          METHODS  Pregnant  rats  were  randomly  divided  into  normal  group,  postpartum  depression  group,  and  low-dose  and  high-dose
          groups of E. ulmoides (1.34, 2.68 g/kg, calculated by crude drug), with 10 rats in each group. Except for the normal group, the
          rats  in  other  groups  suffered  from  fear  stress  to  induce  postpartum  depression  model  during  pregnancy;  at  the  same  time  of
          modeling,  the  administration  groups  were  given  relevant  medicine  intragastrically,  while  the  normal  group  and  postpartum
          depression  group  were  given  physiological  saline  intragastrically  for  21  days.  Postpartum  behaviors  of  rats  during  the  experiment
          were  assessed  using  the  open  field  test,  Morris  water  maze  test  and  sucrose  preference  test.  Additionally,  the  levels  of
          corticosterone  (CORT)  in  serum,  corticotropin  releasing  factor  (CRF)  and  urocortin  (UCN)  in  hypothalamus,  and
          adrenocorticotropic  hormone (ACTH)  in  hypophysis  were  detected;  meanwhile,  the  protein  expressions  of  CRF  receptor  1
         (CRFR1),  CRFR2,  and  voltage-dependent  anion  channel  1 (VDAC1)  in  hippocampal  tissue  were  measured;  the  proportions  of
          apoptotic cells and JC-1 high potential cells in hippocampal tissue were determined, and the morphology of hippocampal tissue was
          observed.  RESULTS  Compared  with  postpartum  depression  group,  the  high-dose  group  of  E.  ulmoides  showed  improvements  in
          appetite,  mental  state,  and  hair  color  in  rats;  their  body  weight  had  increased;  the  scores  of  vertical  movement,  horizontal
          movement and self-sorting significantly increased; from the 2ed to 4th day avoidance latency significantly shortened, and the times
                                                             of  crossing  the  platform  and  the  time  of  crossing  the  platform
             Δ 基金项目 国家自然科学基金青年基金项目(No.82204789)
                                                             significantly  increased/prolonged  (P<0.05);  the  ratio  of
             *第一作者 副教授,硕士。研究方向:孕期应激致胎损的机制及
          防治措施。E-mail:lyj_happy@hactcm.edu.cn                glucose  and  water  consumption  significantly  increased  at  20
             # 通信作者 教授,博士生导师,博士。研究方向:孕期应激致胎损                 days  of  pregnancy  and  30  days  postpartum (P<0.05);  the
          的机制及防治措施。E-mail:bioylp@126.com                     levels  of  CRF,  UCN,  ACTH  and  CORT,  phagocytic  rate,


          中国药房  2024年第35卷第11期                                              China Pharmacy  2024 Vol. 35  No. 11    · 1303 ·
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