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百草妇炎清栓对大鼠细菌性阴道炎的改善作用及机制                                                             Δ



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          王 棋    1, 2* ,王鹏娇 ,孙小东 ,张 敏 ,袁敏艳 ,孟小夏 ,赵燕妮 ,张 硕 ,高秀丽 (1.贵州医科
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          大学药学院/药用植物功能与应用国家重点实验室,贵阳 550025;2.贵州医科大学微生物与生化制药工程中
          心,贵阳 550025;3.贵州医科大学实验动物中心,贵阳 550025)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)20-2476-07
          DOI  10.6039/j.issn.1001-0408.2023.20.06
          摘   要  目的  探究百草妇炎清栓对大鼠细菌性阴道炎(BV)的改善作用及潜在机制。方法  将雌性SD大鼠随机分为正常组,模
          型组,甲硝唑组(阳性对照,0.03 g/kg)和百草妇炎清栓低、中、高剂量组(0.18、0.36、0.72 g/kg),每组8只。除正常组外,其余各组大
          鼠均通过皮下注射苯甲酸雌二醇注射液0.2 g+经阴道口注入大肠埃希菌悬液(2×10 ~3×10  cfu/mL)20 μL建立BV大鼠模型。
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          各药物组大鼠经阴道给予相应药物,正常组和模型组大鼠给予生理盐水,每天1次,持续6 d。末次给药24 h后,对各组大鼠进行
          阴道外观评分并检测阴道pH,检测其阴道灌洗液中细胞因子[白细胞介素1β(IL-1β)、IL-2、IL-13、免疫球蛋白A(IgA)]水平,观察
          其子宫及附件形态和阴道组织病理改变,并检测其阴道组织中Toll样受体2(TLR2)、TLR4、核因子κB(NF-κB)蛋白的表达情况。
          结果  与正常组比较,模型组大鼠子宫明显充血水肿,子宫及附件的形态不规则;阴道组织可见明显水肿增生、上皮细胞脱落,并伴
          有大量炎症细胞浸润;其阴道口红肿评分和分泌物评分,阴道pH,促炎因子IL-1β、IL-2水平和TLR2、TLR4、NF-κB蛋白的表达均
          显著升高/上调,IgA和抗炎因子IL-13水平显著降低(P<0.05或P<0.01)。与模型组比较,各药物组大鼠子宫及附件、阴道组织病
          变均有不同程度改善,上述大部分定量指标均显著好转(P<0.05或P<0.01)。结论  百草妇炎清栓对BV大鼠炎症症状有一定的
          改善作用,其机制可能与抑制TLR/NF-κB信号通路有关。
          关键词  百草妇炎清栓;细菌性阴道炎;炎症;Toll样受体/核因子κB信号通路

          Improvement effect and mechanism of Baicao fuyanqing suppository on bacterial vaginitis in rats
          WANG Qi ,WANG Pengjiao ,SUN Xiaodong ,ZHANG Min ,YUAN Minyan ,MENG Xiaoxia ,
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          ZHAO Yanni ,ZHANG Shuo ,GAO Xiuli (1.  School  of  Pharmacy/State  Key  Laboratory  of  Functions  and
          Applications  of  Medicinal  Plants,  Guizhou  Medical  University,  Guiyang  550025,  China;2.  Center  of
          Microbiology  and  Biochemical  Pharmaceutical  Engineering,  Guizhou  Medical  University,  Guiyang  550025,
          China;3. Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China)
          ABSTRACT    OBJECTIVE  To  explore  the  improvement  effect  and  potential  mechanism  of  Baicao  fuyanqing  suppository  on
          bacterial  vaginitis (BV)  in  rats.  METHODS  The  female  SD  rats  were  randomly  divided  into  normal  group,  model  group,
          metronidazole  group (positive  control,  0.03  g/kg),  Baicao  fuyanqing  suppository  low-dose,  medium-dose  and  high-dose  groups
         (0.18,  0.36,  0.72  g/kg),  with  8  rats  in  each  group.  Except  for  the  normal  group,  the  rats  in  other  groups  were  injected
          subcutaneously  with  0.2  g  of  Estradiol  benzoate  injection+20  μL  of  Escherichia  coli  suspension (2×10 ~3×10   cfu/mL)  through
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          the vaginal opening to establish the BV rat model. Administration groups were given relevant medicine vaginally, while the normal
          group  and  the  model  group  were  given  normal  saline,  once  a  day,  for  6  consecutive  days.  Twenty-four  hours  after  the  last
          administration,  the  vaginal  appearance  score  and  vaginal  pH  were  measured  for  each  group  of  rats.  The  levels  of  cytokines
          [interleukin-1β (IL-1β),  IL-2,  IL-13,  immunoglobulin A (IgA)]  in  vaginal  lavage  fluid  were  determined. The  morphology  of  the
          uterus  and  accessories,  and  pathological  changes  in  the  vaginal  tissue  were  observed.  The  expressions  of  Toll-like  receptor  2
         (TLR2), TLR4 and nuclear factor-κB (NF-κB) in vaginal tissues were determined. RESULTS Compared with the normal group,
          the uterus edema, the irregular shape of uterus and accessories, the vaginal mucosa hyperplasia, and the massive desquamation of
          epithelial  cells  were  observed  in  the  model  group,  complicating  with  massive  infiltration  of  inflammatory  cells;  vaginal  opening
                                                              redness  and  swelling  score  and  secretion  score,  vaginal  pH,
              Δ 基金项目 贵州省科技计划项目(No. 黔科合支撑〔2021〕一
                                                              the  levels  of  proinflammatory  cytokine  IL-1β  and  IL-2,  the
          般414)
                                                              protein  expressions  of  TLR2,  TLR4  and  NF- κB  were  all
              *第一作者 硕士研究生。研究方向:药效物质基础及质量评价。
          E-mail:1054047045@qq.com                            increased  or  up-regulated,  while  the  levels  of  IgA  and  anti-
              # 通信作者 教授,博士生导师。研究方向:制剂质量评价、新药研                 inflammatory  cytokine  IL-13  decreased  significantly (P<0.05
          发及体内药物分析。电话:0851-88416154。E-mail:gaoxl@gmc.edu.     or  P<0.01).  Compared  with  the  model  group,  varying
          cn                                                  degrees  of  improvement  in  uterine  and  accessories,  and


          · 2476 ·    China Pharmacy  2023 Vol. 34  No. 20                            中国药房  2023年第34卷第20期
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