Page 33 - 《中国药房》2023年20期
P. 33

安五脂素改善大鼠肝纤维化的效果及机制
                                                                          Δ


                                              1
                                                      1, 2
                                    1, 2
                 1*
          何秀义 ,安祯祥        1, 2 # ,何远利 ,刘 义 ,何 松 (1.贵州中医药大学第一临床医学院,贵阳 550001;2.贵州
          中医药大学第一附属医院消化内科,贵阳 550001)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)20-2459-06
          DOI  10.6039/j.issn.1001-0408.2023.20.03


          摘  要  目的  探讨安五脂素改善大鼠肝纤维化的效果及作用机制。方法  将50只SD大鼠随机分为正常组,模型组,秋水仙碱片
          组(0.1 mg/kg),安五脂素高、低剂量组(2.8、0.7 mg/kg),每组10只。除正常组外,其余各组大鼠均腹腔注射50% CCl4橄榄油混合
          溶液复制肝纤维化大鼠模型。造模结束后,各组大鼠从第9周开始灌胃相应药物或蒸馏水,每日1次,连续给药4周。实验期间观
          察大鼠一般情况;计算大鼠肝指数;采用比色法检测大鼠血清中丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、超氧化物歧化酶
         (SOD)、丙二醛(MDA)的含量;采用HE染色和Masson染色观察大鼠肝组织病理形态学和肝纤维化情况;采用Western blot法检测
          肝组织中磷脂酰肌醇3-激酶(PI3K)/蛋白激酶B(Akt)通路及凋亡相关蛋白表达水平。结果  与正常组比较,模型组大鼠饮食量下
          降,被毛稀疏、蓬乱,反应迟钝,体重增长速率减慢或体重降低;肝指数显著上升(P<0.01);大鼠血清中ALT、AST、MDA含量均显
          著升高,SOD 含量显著降低(P<0.01);HE 染色及 Masson 染色均观察到大鼠肝组织中有大量纤维增生,胶原容积分数显著升高
         (P<0.01);大鼠肝组织中PI3K、Akt、磷酸化Akt、B细胞淋巴瘤2(Bcl-2)蛋白表达水平均显著下降,Bcl-2相关X蛋白表达水平显
          著升高(P<0.01)。与模型组比较,安五脂素高、低剂量组及秋水仙碱片组上述指标均显著逆转(P<0.01或P<0.05)。结论  安五
          脂素可能是通过激活PI3K/Akt信号通路降低肝纤维化氧化应激反应、抑制肝细胞凋亡,发挥抗肝纤维化的作用。
          关键词  安五脂素;肝纤维化;磷脂酰肌醇3-激酶/蛋白激酶B通路;氧化应激;凋亡

          The effect and mechanism of anwulignan on improving hepatic fibrosis in rats
          HE Xiuyi ,AN Zhenxiang ,HE Yuanli ,LIU Yi ,HE Song (1. The First Clinical Medical College, Guizhou
                                                                1, 2
                                                      1
                  1
                                1, 2
                                             1, 2
          University  of  Traditional  Chinese  Medicine,  Guiyang  550001,  China;2.  Dept.  of  Gastroenterology,  the  First
          Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China)
          ABSTRACT   OBJECTIVE  To  investigate  the  effect  and  mechanism  of  anwulignan  on  improving  hepatic  fibrosis  in  rats.
          METHODS  Fifty  SD  rats  were  randomly  divided  into  the  normal  group,  model  group,  colchicine  tablet  group (0.1  mg/kg),  and
          anwulignan  high-dose  and  low-dose  groups (2.8  and  0.7  mg/kg),  with  10  rats  in  each  group.  Except  for  the  normal  group,  all
          groups of rats were intraperitoneally injected with 50% CCl4 olive oil mixed solution to replicate the rat model of liver fibrosis. At
          the  end  of  the  modeling,  rats  in  each  group  were  given  the  corresponding  drugs  or  distilled  water  intragastrically  from  the  9th
          week, once a day, for 4 weeks consecutively. During the experimental period, the general condition of the rats was observed; the
          liver  index  was  calculated;  the  serum  levels  of  alanine  aminotransferase (ALT),  aspartate  aminotransferase (AST),  superoxide
          dismutase (SOD) and malondialdehyde (MDA) were detected by colorimetric assay; the pathomorphology of the liver tissues and
          liver  fibrosis  were  observed  by  HE  staining  and  Masson  staining;  Western  blot  was  used  to  detect  the  expression  levels  of
          phosphatidylinositol  3-kinase (PI3K)/protein  kinase  B (Akt)  pathway  and  apoptosis-related  proteins  in  liver  tissues.  RESULTS
          Compared  with  the  normal  group,  the  dietary  amount  of  rats  in  the  model  group  decreased,  with  sparse  and  disheveled  fur,  slow
          response,  and  a  slower  rate  of  weight  growth  or  weight  loss;  the  liver  index  was  significantly  increased (P<0.01);  the  serum
          levels  of ALT, AST  and  MDA  were  significantly  increased,  and  the  SOD  level  was  significantly  decreased (P<0.01);  HE  and
          Masson  staining  showed  that  a  large  amount  of  fibrous  proliferation  was  present  in  the  liver  tissues  of  the  rats,  and  the  collagen
          volume  fraction  was  significantly  increased (P<0.01);  the  protein  expressions  of  PI3K,  Akt,  phosphorylated  Akt  and  B-cell
          lymphoma (Bcl-2)  were  down-regulated  significantly,  while  the  protein  expression  of  Bcl-2-associated  X  protein  was  increased
          significantly (P<0.01). Compared with the model group, the above indexes of the anwulignan high-dose and low-dose groups and
                                                             the colchicine tablets group were all reversed significantly(P<
             Δ  基金项目 国 家 自 然 科 学 基 金 项 目(No. 82160893,No.
                                                             0.01  or  P<0.05).  CONCLUSIONS  Anwulignan  may  reduce
          81760865);第五批全国中医临床优秀人才研修项目(No. 国中医药人
                                                             oxidative  stress  and  inhibit  hepatocyte  apoptosis  by  activating
          教函〔2022〕1号);贵州中医药大学国家与省级科技创新人才团队培育
                                                             the  PI3K/Akt  signaling  pathway,  and  play  the  role  of  anti-
          项目(No.贵中医TD合字〔2022〕005号)
             *第一作者 硕士研究生。研究方向:中西医结合防治消化系统疾                   hepatic fibrosis.
          病的基础及临床。E-mail:1907590161@qq.com                   KEYWORDS     Anwulignan; hepatic fibrosis; PI3K/Akt pathway;
             # 通信作者 主任医师,教授,博士生导师,博士。研究方向:中西                 oxidative stress; apoptosis
          医结合防治消化系统疾病的基础及临床。E-mail:407206115@qq.com


          中国药房  2023年第34卷第20期                                              China Pharmacy  2023 Vol. 34  No. 20    · 2459 ·
   28   29   30   31   32   33   34   35   36   37   38