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p38  MAPK)  and  phosphorylation  level  of  p38  MAPK  in  rat  skin  tissue  were  detected;  the  levels  of  inflammatory  indexes
         (interleukin-4,  interferon- γ),  liver  and  kidney  function  indexes  [glutamic-pyruvic  transaminase (GPT),  glutamic-oxaloacetic
          transaminase (GOT),  serum  creatinine (SCr)  and  blood  urea  nitrogen (BUN)]  and  oxidant  stress  indexes  [total  superoxide
          dismutase (T-SOD)  and  malondialdehyde (MDA)]  were  measured.  RESULTS  Compared  with  normal  group,  EASI  score,  ear
          swelling  degree,  pathological  score,  protein  expressions  of  p38  MAPK  and  p-p38  MAPK,  phosphorylation  level  of  p38  MAPK,
          the  levels  of  inflammatory  indexes  and  BUN  were  all  increased  significantly  in  model  group (P<0.05).  Compared  with  model
          group,  EASI  scores,  ear  swelling  degree,  pathological  scores,  protein  expressions  of  p38  MAPK  and  p-p38  MAPK,
          phosphorylation  levels  of  p38  MAPK  and  levels  of  inflammatory  indexes  were  all  improved  significantly  in  administration  groups
         (P<0.05). The  levels  of  GPT,  GOT,  SCr  and  BUN  were  increased  significantly  in TWP  group,  while  the  serum  levels  of  GOT
          and SCr in TGP group and serum level of SCr in loratadine group were all decreased significantly (P<0.05). The levels of T-SOD
          in  liver  and  kidney  tissue  were  all  decreased  significantly  in  TWP  group  and  compatibility  group,  while  the  levels  of  MDA  were
          increased  significantly (P<0.05).  The  compatibility  group  showed  more  obvious  effect  in  improving  the  ear  swelling  degree,
          pathological score, p38 MAPK expression and its phosphorylation level and levels of inflammatory indexes, and could reverse the
          abnormality  of  liver  and  kidney  indexes  caused  by TWP (P<0.05).  CONCLUSIONS  The  combination  of TGP  and TWP  has  the
          effects of anti-inflammatory, synergistic and hepatorenal detoxification in eczema model rats. Its mechanism may be associated with
          down-regulating the expression of serum proinflammatory indexes and inhibiting the activation of p38 MAPK pathway.
          KEYWORDS    total  glucosides  of  paeony;  Tripterygium  wilfordii  polyglycoside;  eczema;  enhancing  efficacy  and  reducing
          toxicity; p38 MAPK pathway; rat



              湿疹是一种常见的炎症性皮肤病,发病率逐年升                          用,以临床常用湿疹治疗药物氯雷他定为阳性对照,探
                                                       [1]
          高,具有皮损对称分布、剧烈瘙痒、反复发作等特点 。                          讨两药配伍后的抗炎增效和肝肾减毒作用,旨在为湿疹
          目前,西医常以糖皮质激素类药物外用行局部治疗,或                           的临床治疗提供新的方向。
          者使用H1受体拮抗剂行全身治疗,或者以糖皮质激素等                          1 材料
          免疫抑制剂行免疫治疗(严重者);患者接受上述药物治                          1.1 主要仪器
          疗后,其症状虽能在短期内得以缓解,但难以有效治愈,                              本研究所用的主要仪器有 SpectraMax iD3 型酶标
          且停药后易出现“反跳”现象并发生不良反应                  [2―3] 。      仪[美谷分子仪器(上海)有限公司],CX23型光学显微镜
              雷 公 藤 多 苷(Tripterygium  wilfordii  polyglycoside,  (日本 Olympus 公司),6300 型化学发光仪(上海勤翔科
          TWP)是提取自雷公藤 Tripterygium wilfordii Hook. f. 根      学仪器有限公司),RM2235型石蜡切片机(德国Leica公
          部的脂溶性总苷,具有抗炎、抗肿瘤及调节免疫的作                            司),YD-6D 型组织包埋机、YD-A 型组织摊片机、YD-B
            [4]
          用 。白芍总苷(total glucosides of paeony,TGP)是提取         型组织烤片机(金华市科迪仪器设备有限公司),BV-2型
          自芍药 Paeonia lactiflora Pall. 的糖苷类物质,是中药白           垂直电泳仪、BT-2 型转印电泳仪(武汉赛维尔生物科技
          芍的有效成分,具有抗炎、抗氧化、保肝肾和调节免疫的                          有限公司)等。
                                   [5]
          作用,可用于湿疹的临床治疗 。本课题组前期研究发                           1.2 主要药品与试剂
          现,TWP(9.45 mg/kg)对湿疹模型大鼠有较好的干预作                        雷公藤多苷片(批号 20201001,规格 10 mg)购自远
                                 [6]
          用,但会造成部分大鼠死亡 。该实验所用剂量是根据                           大医药黄石飞云制药有限公司;白芍总苷胶囊[批号
          成人用量(105 mg/d)折算而得,结合文献报道的“成人口                     20200138,规格 0.300 g(含芍药苷不少于 104 mg)]购自
                                                       [4]
          服 TWP 60 mg/d 连续 1 个月即会出现肝肾功能异常”,                  宁波立华制药有限公司;氯雷他定片(阳性对照,批号
          本课题组推测前期研究所用剂量致大鼠死亡可能与                             2020014,规格 10 mg)购自扬子江药业集团上海海尼药
          TWP的肝肾毒性有关。                                        业有限公司;2,4-二硝基氟苯(2,4-dinitrofluorobenzene,
              p38 丝裂原激活的蛋白激酶(p38 mitogen-activated           DNFB,批号C10362631)购自上海麦克林生化科技有限
          protein kinase,p38 MAPK)通路是具有丝氨酸和酪氨酸               公司;谷丙转氨酶(glutamic-pyruvic transaminase,GPT)、
          双重磷酸化功能的蛋白激酶通路,参与炎症反应的调控                           谷草转氨酶(glutamic-oxaloacetic transaminase,GOT)、
          及湿疹、皮炎等疾病的发生            [7―8] 。氧化应激在肝肾损伤           血肌酐(serum creatinine,SCr)、尿素氮(blood urea nitro‐
          过程中具有重要作用,超氧化物歧化酶(superoxide dis‐                  gen,BUN)、总 超 氧 化 物 歧 化 酶(total  superoxide  dis‐
          mutase,SOD)等抗氧化酶耗竭将导致机体清除氧自由                       mutase,T-SOD)、丙二醛(malondialdehyde,MDA)、白细
          基的能力减弱,从而造成肝肾损伤 。考虑到抗炎是湿                           胞介素 4(interleukin-4,IL-4)、γ 干扰素(interferon-γ,
                                       [9]
          疹治疗的一个重要思路,而氧化应激与肝肾损伤密切相                           IFN-γ)检测试剂盒(批号分别为 C009-1-1、C010-1-1、
          关,故本实验拟从 p38 MAPK 通路和抗氧化角度出发,                      C011-2-1、C013-1-1、A001-3-2、A003-1-2、H005、H025)
          基于TGP、TWP的抗炎作用和TGP的抗氧化、保肝肾作                        均购自南京建成生物工程研究所;DAB 显色试剂盒(批


          中国药房  2023年第34卷第4期                                                 China Pharmacy  2023 Vol. 34  No. 4    · 445 ·
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