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柴胡多糖对急性肝损伤小鼠的保护作用及机制研究
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          陈雨婵 ,彭东辉 ,孙延平 ,王秋红 ,匡海学 (1.黑龙江中医药大学教育部北药基础与应用研究重点实验室,
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          哈尔滨 150040;2.广东药科大学中药学院,广州 510006)
          中图分类号  R965;R285.5      文献标志码  A      文章编号  1001-0408(2024)19-2352-06
          DOI  10.6039/j.issn.1001-0408.2024.19.06

          摘   要  目的  研究柴胡多糖对急性肝损伤(ALI)小鼠的保护作用及机制。方法  将40只小鼠按体重随机分为正常组、模型组、阳
          性对照组(护肝片,550 mg/kg)和柴胡多糖高、低剂量组(400、100 mg/kg),每组8只,每天灌胃给药1次,连续7 d。末次给药1 h后,
          除正常组外,其余各组小鼠均尾静脉注射20 mg/kg刀豆蛋白A溶液建立ALI模型。注射刀豆蛋白A溶液12 h后,测定小鼠肝脾指
          数,观察其肝脾组织病理学变化;检测小鼠血清中天冬氨酸转氨酶(AST)、丙氨酸转氨酶(ALT)、乳酸脱氢酶(LDH),肝组织中超
          氧化物歧化酶(SOD)、丙二醛(MDA)水平;检测小鼠血清和肝组织中肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、IL-1β水平以
          及肝组织中核因子κB(NF-κB)、Toll样受体4(TLR4)、核转录因子红系2相关因子2(Nrf2)和血红素加氧酶1(HO-1)的蛋白表达水
          平。结果  与正常组比较,模型组小鼠肝组织大量坏死、炎症细胞浸润,脾脏增大、出血增多、淋巴细胞减少,肝脾指数均显著升高
         (P<0.01);血清中AST、ALT、LDH水平,血清和肝组织中TNF-α、IL-6、IL-1β水平,肝组织中MDA水平和TLR4、NF-κB、HO-1蛋
          白表达水平均显著升高(P<0.05或P<0.01);肝组织中SOD水平和Nrf2蛋白表达水平均显著降低(P<0.05)。与模型组比较,柴
          胡多糖高、低剂量组小鼠肝脾组织病理损伤减轻,肝脾指数、血清和肝组织中上述指标水平大部分被显著逆转(P<0.05 或 P<
          0.01)。结论  柴胡多糖对ALI小鼠具有保护作用,其作用机制可能与抑制TLR4/NF-κB信号通路和激活Nrf2/HO-1信号通路有关。
          关键词  柴胡多糖;急性肝损伤;TLR4/NF-κB信号通路;Nrf2/HO-1信号通路

          Study  on  protective  effect  and  mechanism  of  Bupleurum  chinense  polysaccharides  on  acute  liver  injury  in
          mice
          CHEN Yuchan ,PENG Donghui ,SUN Yanping ,WANG Qiuhong ,KUANG Haixue(1. Key Laboratory of Basic
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          and  Applied  Research  of  Northern  Medicine  of  Ministry  of  Education,  Heilongjiang  University  of  Chinese
          Medicine,  Harbin  150040,  China;2.  College  of  Chinese  Medicine,  Guangdong  Pharmaceutical  University,
          Guangzhou 510006, China)
          ABSTRACT    OBJECTIVE To study the protective effect and mechanism of Bupleurum chinense polysaccharides (BCP) on acute
          liver injury (ALI) in mice. METHODS Overall 40 mice were randomly divided into normal group, model group, positive control
          group (Baogan tablet, 550 mg/kg), BCP high-dose and low-dose groups (400, 100 mg/kg), with 8 mice in each group. The drug
          was administered intragastrical once a day for 7 days. One hour after the last administration, except for the normal group, mice in
          other  groups  were  injected  with  20  mg/kg  concanavalin A  solution  through  the  tail  vein  to  establish ALI  model. After  injection  of
          concanavalin A  solution  for  12  h,  the  liver  and  spleen  indexes  of  mice  were  measured,  and  the  pathological  changes  of  liver  and
          spleen  tissue  were  observed;  the  serum  levels  of  aspartate  aminotransferase (AST),  alanine  aminotransferase (ALT)  and  lactate
          dehydrogenase (LDH)  were  detected,  and  the  levels  of  superoxide  dismutase (SOD)  and  malondialdehyde (MDA)  in  liver  tissue
          were  detected.  The  levels  of  tumor  necrosis  factor-α (TNF-α),  interleukin-6 (IL-6)  and  IL-1β  in  serum  and  liver  tissue  of  mice
          were  determined,  as  well  as  the  protein  expression  levels  of  nuclear  factor-κB (NF-κB),  Toll-like  receptor  4 (TLR4),  nuclear
          factor  erythroid  2-related  factor  2 (Nrf2)  and  heme  oxygenase-1 (HO-1)  in  liver  tissue  were  also  detected.  RESULTS  Compared
          with  the  normal  group,  the  liver  tissue  of  mice  in  the  model  group  was  necrotic  and  infiltrated  with  inflammatory  cells;  spleen
                                                              enlargement,  increased  bleeding  and  decreased  lymphocytes
              Δ 基金项目 国家中医药管理局中医药传承与创新“百千万”人才
                                                              were  observed,  liver  and  spleen  indexes  were  increased
          工程——岐黄工程首席科学家项目(No.国中医药人教函〔2021〕7号);
          国家中医药管理局中医药传承与创新“百千万”人才工程(岐黄工程)                     significantly (P<0.01);  the  serum  levels  of  AST,  ALT  and
          岐黄学者支持项目(No.国中医药人教函〔2018〕284号);黑龙江省“头               LDH, the levels of TNF-α, IL-6 and IL-1β in serum and liver
          雁”团队支持项目(No.〔2019〕5号)                               tissue,  as  well  as  the  MDA  level,  protein  expressions  of
             *第一作者 博士研究生。研究方向:中药药效物质基础。E-
                                                              TLR4,  NF- κB  and  HO-1  in  liver  tissue  were  all  increased
          mail:747223077@qq.com
              # 通信作者 教授,博士生导师。研究方向:中药性味理论及中药                  significantly (P<0.05  or  P<0.01).  The  levels  of  SOD  and
          药效物质基础。E-mail:hxkuang@hljucm.net                    protein  expression  of  Nrf2  in  liver  tissue  were  all  decreased


          · 2352 ·    China Pharmacy  2024 Vol. 35  No. 19                            中国药房  2024年第35卷第19期
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