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·药学研究·
飞龙掌血对胶原诱发关节炎大鼠心血管损害的干预作用及机制
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李月兴 ,陈波洋,李 倩,陈 帅,陈云志(贵州中医药大学基础医学院,贵阳 550025)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2023)24-2987-08
DOI 10.6039/j.issn.1001-0408.2023.24.06
摘 要 目的 基于维生素D(VD)和中性粒细胞胞外诱捕网(NETs)探讨苗药飞龙掌血对胶原诱发关节炎(CIA)大鼠心血管损害
的干预作用及潜在机制。方法 将SD大鼠随机分为正常组(9只)和造模组(61只)。造模组大鼠以多点注射牛Ⅱ型胶原+弗氏不
完全佐剂的方式制备CIA模型。将造模成功的大鼠分为模型组、甲氨蝶呤组(阳性对照,1.5 mg/kg,每周2次)、VD组[通路验证,
1 000单位/(kg·d),每天1次]和飞龙掌血低、中、高剂量组[0.54、1.08、2.16 g/(kg·d),以生药量计,每天1次],每组9只,灌胃给药4
周。于造模后、给药前进行关节炎指数评分,分别于给药前和末次给药后测量足跖厚度,观察大鼠踝关节、心脏和腹主动脉组织病
理学变化;检测血清中髓过氧化物酶(MPO)、白细胞介素6(IL-6)、25-羟基维生素D3[25(OH)D3]含量;检测心脏组织中肽酰基精氨
酸脱亚氨酶 4(PAD4)、NETs 标志物[瓜氨酸化组蛋白 H3(CitH3)、MPO]、VD 相关指标[维生素 D 受体(VDR)、25 羟基维生素 D-
1α羟化酶(CYP27B1)]、IL-6蛋白的表达情况。结果 与正常组比较,模型组大鼠关节炎指数和足跖厚度均显著增加(P<0.01),踝
关节组织可见明显的炎症细胞浸润和纤维组织增生,心脏组织可见明显的组织空泡和部分周围血管壁增厚,腹主动脉组织可见内
皮脱落;血清MPO、IL-6含量显著增高(P<0.01),25(OH)D3水平显著下降(P<0.01);心肌组织中PAD4、CitH3、MPO、IL-6蛋白的
表达均显著上调(P<0.01);VDR、CYP27B1蛋白的表达虽有改变,但差异均无统计学意义(P>0.05)。与模型组比较,各药物组大
鼠踝关节、心脏组织的病理改变均明显改善,上述各指标均普遍逆转(P<0.05或P<0.01)。结论 飞龙掌血可通过抑制NETs的形
成及炎症反应的发生来改善类风湿性关节炎症状及相关心血管损害,其机制可能与调节VD水平有关。
关键词 飞龙掌血;类风湿性关节炎;心血管损害;中性粒细胞胞外诱捕网;维生素D
Intervention effects and mechanism of Toddalia asiatica on cardiovascular damage in rats with collagen-
induced arthritis
LI Yuexing,CHEN Boyang,LI Qian,CHEN Shuai,CHEN Yunzhi(School of Basic Medicine, Guizhou
University of Traditional Chinese Medicine, Guiyang 550025, China)
ABSTRACT OBJECTIVE To investigate the intervention effects and potential mechanism of Miao medicine Toddalia asiatica on
cardiovascular damage in rats with collagen-induced arthritis (CIA) based on vitamin D (VD) and neutrophil extracellular traps
(NETs). METHODS SD rats were randomly divided into the normal group (9 rats) and the modeling group (61 rats). CIA model
was prepared by multi-point injection of type Ⅱ bovine collagen+Fisher’s incomplete adjuvant; the model rats were randomly
divided into the model group, methotrexate group (positive control, 1.5 mg/kg, twice a week), vitamin D group [pathway
validation, 1 000 IU/(kg·d), once a day], T. asiatica low-dose, medium-dose and high-dose groups [0.54, 1.08, 2.16 g/(kg·d),
calculated by crude drug, once a day], with 9 rats in each group; they were given relevant medicine intragastrically for 4
consecutive weeks. Arthritis index scoring was performed after modeling and before administration, and plantar thickness was
measured before and after the last administration; the histopathological changes of ankle joint, heart and abdominal aorta were
observed in rats; the serum contents of myeloperoxidase (MPO), interleukin-6 (IL-6) and 25-hydroxyvitamin D3 [25(OH)D3]
were detected; the expressions of peptidylarginine deiminase 4 (PAD4), NETs markers [citrullinated histone H3(CitH3), MPO],
VD-related indicators [vitamin D receptor (VDR), 25-hydroxyvitamin D-1α-hydroxylase (CYP27B1)] and IL-6 were determined in
cardiac tissue. RESULTS Compared with the normal group,
Δ 基金项目 国家自然科学基金项目(No.82260890);2021年国家 the plantar thickness of the arthritis index increased
自然科学基金后补助资金科研创新探索专项(No.2019YFC1712504- significantly in the model group (P<0.01). The obvious
04);贵州省教育厅滚动支持省属高校科研平台团队项目(No. 黔教技 inflammatory cell infiltration and fibrous tissue hyperplasia
〔2022〕023 号);贵州中医药大学 2021 年度科研创新和探索专项 were found in the ankle joint, the obvious myocardial fiber
(No.2019YFC171250101) vacuoles and thickening of some surrounding blood vessel
*第一作者 硕士研究生。研究方向:中医证候与物质基础。
walls were found in the heart tissue, and the endothelial
E-mail:1908515040@qq.com
# 通信作者 教授,博士生导师,博士。研究方向:中医证候与物质 detachment was found in the abdominal aorta. The contents of
基础。E-mail:chenyunzhi270@gzy.edu.cn MPO and IL-6 in serum increased significantly(P<0.01),
中国药房 2023年第34卷第24期 China Pharmacy 2023 Vol. 34 No. 24 · 2987 ·