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血根碱对腰椎间盘突出症大鼠炎性疼痛的改善作用及机制
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阮 祯 ,何生华 ,龚雪花 ,乔 松 ,王 超(1.武汉市中医医院推拿科,武汉 430000;2.武汉市第七医院中
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南路街第一社区卫生服务中心,武汉 430060;3.湖北省中西医结合医院康复医学中心推拿科,武汉 430010)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2024)09-1087-07
DOI 10.6039/j.issn.1001-0408.2024.09.11
摘 要 目的 研究血根碱(SG)对腰椎间盘突出症(LDH)大鼠炎性疼痛的改善作用及机制。方法 制备LDH模型大鼠,然后分
为模型组和 SG 低、中、高剂量组(1.00、2.50、6.25 mg/kg)以及 SG 高剂量+Anisomycin[丝裂原活化蛋白激酶(MAPK)激活剂]组
(6.25 mg/kg SG+5 mg/kg Anisomycin),每组10只;另取10只大鼠作为对照组。各组大鼠腹腔注射相应药物,对照组和模型组大鼠
腹腔注射等体积生理盐水,每天1次,连续7 d。观察大鼠一般情况及神经功能变化;测定大鼠疼痛阈值[包括机械刺激缩足反射阈
值(PWMT)和热刺激缩足反射潜伏期(PWTL)];观察大鼠背根神经节(DRG)组织病理变化;检测大鼠血清中炎症因子[肿瘤坏死
因子α(TNF-α)、白细胞介素1β(IL-1β)]和疼痛因子[神经肽Y(NPY)、5羟色胺(5-HT)]水平;观察脊髓小胶质细胞中离子钙接头
蛋白 1(Iba-1)和星形胶质细胞中胶质原纤维酸性蛋白(GFAP)的阳性表达;检测大鼠 DRG 组织中 MAPK/胞外信号调节激酶
(ERK)/核因子κB(NF-κB)信号通路相关蛋白和TNF-α、IL-1β蛋白的表达。结果 与对照组相比,模型组大鼠精神食欲不振,后肢
运动障碍,DRG椎间盘神经元细胞排列紊乱;神经功能评分,血清中TNF-α、IL-1β、NPY水平,Iba-1、GFAP阳性表达,DRG组织中
p38 MAPK、ERK1/2、NF-κB p65蛋白磷酸化水平和TNF-α、IL-1β蛋白表达水平均显著升高(P<0.05);PWMT、PWTL和血清中5-
HT水平均显著降低(P<0.05)。与模型组相比,SG各剂量组大鼠精神食欲好转,后肢运动障碍缓解,DRG椎间盘神经元结构改
善,上述定量指标水平均显著逆转(P<0.05)。Anisomycin 可逆转 SG 对 LDH 大鼠炎性疼痛的改善作用。结论 SG 可通过抑制
LDH 大鼠 DRG 组织中小胶质细胞活化,减少炎症因子释放,提高疼痛阈值,从而改善炎性疼痛;其作用机制可能与抑制 MAPK/
ERK/NF-κB信号通路有关。
关键词 血根碱;腰椎间盘突出症;炎性疼痛;MAPK/ERK/NF-κB信号通路
Improvement effect and mechanism of sanguinarine on inflammatory pain in rats with lumbar disc
herniation
RUAN Zhen ,HE Shenghua ,GONG Xuehua ,QIAO Song ,WANG Chao (1. Dept. of Massage, Wuhan
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Hospital of Traditional Chinese Medicine, Wuhan 430000, China;2. The First Community Health Service
Center, Zhongnan Road Street, Wuhan Seventh Hospital, Wuhan 430060, China;3. Dept. of Massage,
Rehabilitation Medicine Center, Hubei Province Integrated Traditional Chinese and Western Medicine Hospital,
Wuhan 430010, China)
ABSTRACT OBJECTIVE To study the improvement effect and mechanism of sanguinarine (SG) on inflammatory pain in rats
with lumbar disc herniation (LDH) and its mechanism. METHODS LDH model rats were established and divided into model group,
SG low-dose, medium-dose and high-dose groups (1.00, 2.50, 6.25 mg/kg), high-dose of SG+Anisomycin [mitogen-activated
protein kinase (MAPK) activator] group (6.25 mg/kg SG+5 mg/kg Anisomycin), with 10 rats in each group. Another 10 rats were
included as the control group. Each group was given corresponding drugs intraperitoneally, while the control group and model
group were given an equal volume of normal saline intraperitoneally, once a day, for 7 consecutive days. The general situation and
neurological changes of rats in each group were observed, and the pain threshold [including paw withdrawal mechanical threshold
(PWMT) and paw withdrawal thermal latency (PWTL)] of
Δ 基金项目 湖 北 省 中 医 药 管 理 局 中 医 药 科 研 项 目(No. rats was determined; the histopathological changes of dorsal
ZY2023M026) root ganglion (DRG) were observed in rats. The serum levels
*第一作者 住院医师,硕士。研究方向:腰椎间盘突出治疗。
of inflammatory factors [tumor necrosis factor- α (TNF- α),
E-mail:pemuto@163.com
interleukin-1β (IL-1β)] and pain factors [neuropeptide Y
# 通信作者 主任医师,硕士。研究方向:腰椎间盘突出治疗。
E-mail:xuncha0711@163.com (NPY), 5-hydroxytryptamine (5-HT)] in rats were detected.
中国药房 2024年第35卷第9期 China Pharmacy 2024 Vol. 35 No. 9 · 1087 ·