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穿心莲内酯对大鼠神经性疼痛的影响机制
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          陈天华 ,江 群,董 航(江汉大学附属医院/武汉市第六医院疼痛科,武汉 430014)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2024)20-2488-05
          DOI  10.6039/j.issn.1001-0408.2024.20.08


          摘   要  目的  研究穿心莲内酯对大鼠神经性疼痛(NP)的影响机制。方法  将大鼠随机分为假手术组、模型组、穿心莲内酯低剂
          量组(1 mg/kg)、穿心莲内酯中剂量组(5 mg/kg)、穿心莲内酯高剂量组(10 mg/kg)、阿魏酸钠组(150 mg/kg),每组12只。除假手术
          组外,其余各组大鼠均采用坐骨神经慢性压迫损伤法复制NP模型。建模成功后,各给药组大鼠鞘内注射相应剂量的穿心莲内酯
          或灌胃相应剂量的阿魏酸钠,假手术组和模型组大鼠给予等体积生理盐水,每日1次,连续14 d。给药7、14 d时检测各组大鼠的
          机械性缩足反射阈值(MWT)和热刺激缩足反射潜伏期(TWL);末次给药后,检测各组大鼠血清中白细胞介素6(IL-6)、肿瘤坏死
          因子α(TNF-α)、前列腺素E2 (PGE2 )、P物质(SP)水平,观察脊髓组织病理形态,检测脊髓组织中离子钙接头蛋白分子1(Iba-1)、生
          长停滞特异性蛋白6(Gas6)、受体型酪氨酸激酶Axl(简称“Axl”)mRNA及蛋白表达量。结果  与模型组比较,各给药组大鼠给药
          7、14 d时MWT、TWL以及末次给药后Gas6、Axl mRNA及蛋白表达量均显著升高(P<0.05),IL-6、TNF-α、PGE2、SP水平和Iba-1
          mRNA及蛋白表达量均显著降低(P<0.05),脊髓组织神经元排列紊乱、毛细血管扩张充血等病理损伤均不同程度减轻;穿心莲内
          酯高剂量组与阿魏酸钠组大鼠上述指标比较,差异均无统计学意义(P>0.05)。结论  穿心莲内酯可能通过激活Gas6/Axl信号轴
          来抑制炎症反应,从而发挥缓解NP的作用。
          关键词  穿心莲内酯;神经性疼痛;Gas6/Axl信号轴;镇痛

          Effect mechanism of andrographolide on neuropathic pain in rats
          CHEN Tianhua,JIANG Qun,DONG Hang(Dept.  of  Pain,  the  Affiliated  Hospital  of  Jianghan  University/the
          Sixth Hospital of Wuhan, Wuhan 430014, China)

          ABSTRACT    OBJECTIVE  To  investigate  the  effect  mechanism  of  andrographolide (Andro)  on  neuropathic  pain (NP)  in  rats.

          METHODS Rats were randomly separated into sham operation group, model group, Andro low-dose (1 mg/kg), Andro medium-dose
         (5  mg/kg)  and  Andro  high-dose (10  mg/kg)  groups,  and  sodium  ferulic  acid (150  mg/kg)  group,  with  12  rats  in  each  group.
          Except for sham operation group, other groups used the chronic sciatic nerve compression injury method to induce NP model. After
          modeling, each group was given relevant dose of Andro intrathecally or sodium ferulate intragastrically. The sham operation group
          and  model  group  were  given  a  constant  volume  of  normal  saline  once  a  day  for  14  consecutive  days.  The  mechanical  withdrawal
          threshold (MWT) and thermal withdrawal latency (TWL) of rats were detected in each group after 7 and 14 days of administration.
          After  the  last  medication,  the  serum  levels  of  interleukin-6 (IL-6),  tumor  necrosis  factor-α (TNF-α),  prostaglandin  E2 (PGE2 ),
          and  substance  P (SP)  in  rats  were  detected  in  each  group,  and  the  pathological  morphology  of  spinal  cord  tissue  was  observed.
          mRNA  and  protein  expressions  of  ionized  calcium  binding  adaptor  molecule-1 (Iba-1),  growth  arrest  specific  protein  6 (Gas6),
          and Axl in spinal cord tissue were determined. RESULTS Compared with model group, MWT and TWL after 7 and 14 days of the
          administration,  the  mRNA  and  protein  expressions  of  Gas6  and  Axl  after  the  last  medication  were  all  increased  significantly  in
          administration groups (P<0.05), while the levels of IL-6, TNF-α, PGE2 and SP, mRNA and protein expressions of Iba-1 were all
          decreased significantly (P<0.05); pathological injuries such as the disordered arrangement of spinal cord neurons and dilation and
          congestion of capillaries had been alleviated to varying degrees. Compared with sodium ferulic acid group, there was no statistically
          significant  difference  in  the  above  indicators  in  the  Andro  high-dose  group (P>0.05).  CONCLUSIONS  Andro  may  inhibit
          inflammatory response by activating the Gas6/Axl signaling axis, thereby alleviating NP.
          KEYWORDS     andrographolide; neuropathic pain; Gas6/Axl signal axis; analgesia



              Δ 基金项目 武汉市医学科研项目(No.WX20D02)                        神经性疼痛(neuropathic pain,NP)是一种慢性疾
             *第一作者 主治医师,硕士。研究方向:慢性疼痛的诊疗。                      病,通常由躯体感觉神经系统紊乱或病变引起,与多种
          E-mail:v04imh@163.com
                                                              合并症有关,例如抑郁、焦虑、认知障碍、记忆缺陷等,已
              # 通信作者 主任医师,博士。研究方向:临床麻醉及疼痛诊疗。
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          E-mail:x31saa@163.com                               成为一个重要的公共卫生问题 。美国国家健康与临床

          · 2488 ·    China Pharmacy  2024 Vol. 35  No. 20                            中国药房  2024年第35卷第20期
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