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野蔷薇根总黄酮对类风湿关节炎模型大鼠血管损伤的改善作用

          及机制
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          李开言 ,张 飞 ,田 萍 ,杨 丹 ,张 薇 ,王晓丽 ,屠万倩 ,刘一菲(1.河南省中西医结合医院中药研究
                                                   1
                                   1
          所,郑州 450004;2.河南中医药大学药学院,郑州 450046)
          中图分类号  R965;R285      文献标志码  A      文章编号  1001-0408(2024)08-0931-05
          DOI  10.6039/j.issn.1001-0408.2024.08.06
          摘  要  目的  研究野蔷薇根总黄酮对类风湿关节炎(RA)模型大鼠血管损伤的改善作用及其潜在机制。方法  将雌性Wistar大
          鼠随机分为正常对照组、模型组、阿司匹林组(阳性对照,30 mg/kg)和野蔷薇根总黄酮低、高剂量组(4.15、8.30 g/kg,以生药量计),
          每组 10 只。除正常对照组外,其余各组大鼠采用胶原诱导+高脂饮食喂养建立 RA 模型。造模 14 d 后,各组大鼠灌胃相应药液/
          0.5%羧甲基纤维素钠溶液,每天1次,连续36 d。定期评估大鼠的全身评分、关节炎指数和足爪肿胀数;末次给药后,检测大鼠血
          清中白细胞介素6(IL-6)、细胞间黏附分子1(ICAM-1)和血管细胞黏附分子1(VCAM-1)水平,观察大鼠胸主动脉血管组织病理学
          形态变化,检测胸主动脉血管组织中 Toll 样受体 4(TLR4)蛋白表达水平和 Janus 激酶 2(JAK2)、信号转导及转录激活因子 3
         (STAT3)蛋白磷酸化水平。结果  与正常对照组比较,模型组大鼠血清中 IL-6、ICAM-1、VCAM-1 水平和胸主动脉血管组织中
          TLR4蛋白表达水平及JAK2、STAT3蛋白磷酸化水平均显著升高(P<0.01),胸主动脉血管组织可见动脉粥样斑块(粥瘤)、胆固醇
          结晶、淋巴细胞浸润及少量未破裂的泡沫细胞聚集。与模型组比较,在第28天时,野蔷薇根总黄酮各剂量组大鼠的全身评分(低
          剂量组除外)、关节炎指数和足爪肿胀数均显著降低(P<0.05或P<0.01);在第49天时,野蔷薇根总黄酮低剂量组大鼠的全身评
          分、关节炎指数和足爪肿胀数均显著降低(P<0.05或P<0.01);野蔷薇根总黄酮各剂量组大鼠血清和血管组织中其余定量指标均
          显著逆转(P<0.05或P<0.01),血管组织病理损伤明显减轻。结论  野蔷薇根总黄酮可改善RA模型大鼠的血管损伤,其作用可能
          与降低血管组织中TLR4蛋白表达,抑制IL-6/JAK2/STAT3信号通路活性有关。
          关键词  野蔷薇根总黄酮;类风湿关节炎;炎症;血管损伤;TLR4;IL-6/JAK2/STAT3信号通路

          Improvement  effect  and  mechanism  of  total  flavonoids  from  Rosa  multiflora  root  on  vascular  injury  in
          rheumatoid arthritis model rats
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          LI Kaiyan ,ZHANG Fei ,TIAN Ping ,YANG Dan ,ZHANG Wei ,WANG Xiaoli ,TU Wanqian ,LIU Yifei          1
                                                                                                 1
                                                                                    1
         (1.  Institute  of  Chinese  Medicine,  Henan  Integrative  Medicine  Hospital,  Zhengzhou  450004,  China;2.  College
          of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China)
          ABSTRACT   OBJECTIVE  To  study  the  improvement  effect  of  total  flavonoids  from  Rosa  multiflora  root  on  vascular  injury  in
          rheumatoid  arthritis (RA)  model  rats  and  its  potential  mechanism.  METHODS  Female  Wistar  rats  were  randomly  divided  into
          normal control group, model group, aspirin group (positive control, 30 mg/kg), low-dose and high-dose groups of total flavonoids
          from R. multiflora root (4.15, 8.30 g/kg, by crude drug), with 10 rats in each group. Except for the normal control group, the RA
          model  was  induced  in  other  groups  by  collagen  induction  and  high-fat  diet.  After  14  days  of  modeling,  they  were  given
          corresponding  drug  solution/0.5%  sodium  carboxymethyl  cellulose  solution  intragastrically,  once  a  day,  for  36  consecutive  days.
          The  total  body  score,  arthritis  index (AI)  and  swollen  joint  count (SJC)  of  the  rats  were  evaluated  regularly.  After  the  last
          medication, serum levels of interleukin-6 (IL-6), intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-
          1 (VCAM-1) were determined. The pathological morphological changes in the vascular tissue of thoracic aorta were observed; the
          protein  expression  of  Toll-like  receptor  4 (TLR4)  and  the  protein  phosphorylation  levels  of  Janus  kinase  2 (JAK2)  and  signal
          transduction and activator of transcription 3 (STAT3) in vascular tissue of thoracic aorta were measured. RESULTS Compared with
          the  normal  control  group,  serum  levels  of  IL-6,  ICAM-1  and  VCAM-1,  protein  expression  of  TLR4,  and  the  protein
          phosphorylation  levels  of  JAK2  and  STAT3  in  vascular  tissue  of  thoracic  aorta  were  increased  significantly  in  model  group (P<
          0.01).  The  atherosclerotic  plaque (atheroma),  cholesterol  crystal,  lymphocyte  infiltration  and  a  small  number  of  unbroken  foam
                                                             cell aggregation could be seen in the vascular tissue of thoracic
             Δ 基金项目 河 南 省 自 然 科 学 基 金 青 年 科 学 基 金 项 目(No.    aorta.  Compared  with  the  model  group,  total  body  score
          222300420199);河 南 中 医 药 大 学“ 博 士 科 研 基 金 ”项 目(No.
                                                            (except  for  the  low-dose  group), AI  and  SJC  were  decreased
          BSJJ2022-05)
                                                             significantly  in  groups  of  total  flavonoids  from  R.  multiflora
             *第一作者 助理研究员,硕士。研究方向:中药药理。E-mail:
          297083488@qq.com                                   root on the 28th day (P<0.05 or P<0.01); total body score,
             # 通信作者 高级实验师,博士。研究方向:中药质量标准与品种                  AI  and  SJC  were  decreased  significantly  in  low-dose  group  of
          整理。E-mail:zhfei0123@hactcm.edu.cn                  total  flavonoids  from  R.  multiflora  root  on  the  49th  day (P<


          中国药房  2024年第35卷第8期                                                 China Pharmacy  2024 Vol. 35  No. 8    · 931 ·
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