实验动物与比较医学 ›› 2025, Vol. 45 ›› Issue (3): 251-258.DOI: 10.12300/j.issn.1674-5817.2024.163

• 人类疾病动物模型 •    下一篇

长春瑞滨诱导大鼠足背静脉炎模型的动态评价

姜萌1()(), 郝淑兰1, 仝立国1, 仲启明1, 高振飞2, 王永辉2, 王晞星1()(), 吉海杰1()()   

  1. 1.山西省中医药研究院中心实验室, 太原 030012
    2.山西中医药大学方剂学教研室, 太原 030619
  • 收稿日期:2024-11-06 修回日期:2025-02-07 出版日期:2025-07-07 发布日期:2025-06-25
  • 通讯作者: 王晞星(1959—),男,医学学士,主任医师,国医大师,研究方向:中医药防治肿瘤病临床与基础研究。E-mail:wangxx315@163.com。ORCID: 0000-0003-2444-7248;
    吉海杰(1982—),男,医学博士,主任药师,硕士生导师,研究方向:中药药效物质基础研究。E-mail:jihaijie82@hotmail.com
  • 作者简介:姜 萌(1998—),女,医学硕士,中医师,研究方向:中药药效物质基础研究。E-mail:876240961@qq.com
  • 基金资助:
    国家自然科学基金面上项目“基于血管内皮细胞Ang/Tie2轴探讨化疗性静脉炎发生及复方藤芷膏干预机制”(81973672);山西省基础研究计划“藤芷膏贴治疗化学性静脉炎的机制研究”(202203021221291);山西省科技创新人才团队专项“中药药效物质发现与开发”(202204051001032);山西省中医药科技创新工程项目“基于国医大师验方治疗化疗后静脉炎的中药新药临床前研究”(2023);山西省中医药重点研究室建设项目“中药药效物质研究重点研究室建设”(ZYYYJS2024005);山西省重点实验室建设项目“山西省中医药管理局重点研究室项目-方药配伍及功用重点研究室”(zyyyjs2024023);山西省外聘专家工作室“项耀祖血管炎性疾病研究山西工作室”(2025W62)

Dynamic Evaluation of Vinorelbine-Induced Phlebitis of Dorsalis Pedis Vein in a Rat Model

JIANG Meng1()(), HAO Shulan1, TONG Liguo1, ZHONG Qiming1, GAO Zhenfei2, WANG Yonghui2, WANG Xixing1()(), JI Haijie1()()   

  1. 1.Department of Central Laboratory, Shanxi Province Academy of Traditional Chinese Medicine, Taiyuan 030012, China
    2.Department of Formulas of Chinese Medicine, Shanxi University of Chinese Medicine, Taiyuan 030619, China
  • Received:2024-11-06 Revised:2025-02-07 Published:2025-06-25 Online:2025-07-07
  • Contact: WANG Xixing (0000-0003-2444-7248), E-mail: wangxx315@163.com;
    JI Haijiee (0009-0006-7219-6649), E-mail: jihaijie82@hotmail.com

摘要:

目的 动态观察经大鼠足背静脉注射长春瑞滨溶液诱导静脉炎模型的临床症状和病理变化。 方法 28只11周龄雄性SPF级SD大鼠随机分为模型组(20只)和对照组(8只):模型组经右后肢足背静脉单次注射0.1 mL长春瑞滨溶液(4 mg/mL),对照组同法注射等体积生理盐水。每日观察两组大鼠的静脉炎发生情况并记录其分级,采用排水法测量患肢体积并计算肿胀率,双足平衡测痛仪测试患肢承重占比,红外热像仪检测患肢皮肤温度,连续9 d。模型组从第1天起隔日处死3只大鼠,取从注射点至向心端1 cm处的静脉组织,采用苏木精-伊红染色法观察静脉组织病理学改变,用扫描电子显微镜观察血管内膜表面微观结构变化。 结果 与对照组大鼠比较,模型组大鼠第1天出现红肿,至第3天肿胀率达到(81.89±15.75)%(P<0.001),而后红肿逐渐缓解,至第9天降至(15.41±0.33)%(P<0.01);模型组大鼠患肢第1天出现痛觉,至第3天明显加剧,承重占比降低至(36.35±4.91)%(P<0.001),同时患肢病灶皮肤发热,第5天明显升高至(36.36±0.40)℃(P<0.001),痛觉和发热在第9天均基本恢复至正常。模型组大鼠患肢静脉炎分级显示,第1天Ⅱ级占75.0%;第3天Ⅲ级、Ⅳ级各占37.5%;第5 ~ 9天多数出现条索状静脉,以Ⅲ级为主。患肢静脉组织从第1天的周围水肿和炎性细胞浸润,逐渐进展为第3 ~ 9天的内膜破溃、管壁增厚,甚至管腔狭窄;同时静脉内膜亦从内皮细胞紧密连接破坏、血细胞粘附,进展为内膜表面粗糙、褶皱及隆起。 结论 经后肢足背静脉单次注射0.1 mL长春瑞滨溶液(4 mg/mL)建立的静脉炎大鼠模型在第3 ~ 5天以局部红、肿、热、痛为典型特征,至第9天基本消退,但仍可见条索状静脉;随病程延长,静脉组织出现水肿、管壁增厚及管腔狭窄,静脉内膜破溃、表面粗糙甚至完全缺失。

关键词: 静脉炎, 足背静脉, 长春瑞滨, 大鼠

Abstract:

Objective To dynamically observe the clinical symptoms and pathological changes in a rat model of vinorelbine-induced phlebitis via injection into the dorsalis pedis vein. Methods Twenty-eight 11-week-old male SPF-grade SD rats were randomly divided into a model group (n=20) and a control group (n=8). The model group received a single injection of 0.1 mL vinorelbine solution (4 mg/mL) via the right hind limb dorsalis pedis vein, while the control group received an equal volume of normal saline via the same method. The occurrence and grading of phlebitis in both groups were observed and recorded daily. The volume of the injured limb was measured by the drainage method to calculate the swelling rate. The weight-bearing ratio of the injured limb was assessed using a bipedal balance pain meter, and the skin temperature of the injured limb was measured by infrared thermal imaging. These measurements were conducted for 9 consecutive days. Starting from day 1, three rats from the model group were euthanized every other day. A 1-cm segment of the vein extending proximally from the injection site was collected. Pathological changes in the vein tissue were examined by hematoxylin-eosin staining, and ultrastructural changes of the vascular endothelium were observed using scanning electron microscopy. Results Compared to the control group, the injected hindlimb of model rats showed redness and swelling on day 1, with the swelling rate peaking at (81.89±15.75) % on day 3 (P<0.001), then gradually alleviating and decreasing to (15.41±0.33) % by day 9 (P<0.01). Pain was observed in the affected limbs of model rats on day 1 and worsened markedly on day 3, with the weight-bearing ratio decreasing to (36.35±4.91)% (P<0.001). Meanwhile, the skin temperature of the lesion site increased, reaching (36.36±0.40) ℃ on day 5 (P<0.001). Both pain and fever returned to near normal levels by day 9. Phlebitis grading in the model group showed that 75.0% of rats were grade Ⅱ on day 1; grade Ⅲ and Ⅳ each accounted for 37.5% on day 3; from days 5 to 9, most rats exhibited cord-like veins, predominantly grade III. Venous tissue showed peripheral edema and inflammatory cell infiltration on day 1, which gradually progressed to intimal rupture, vessel wall thickening, and even lumen narrowing from day 3 to 9. The venous intima exhibited destruction of tight junctions between endothelial cells and adhesion of blood cells, progressing to roughened, wrinkled, and protruding intimal surfaces. Conclusion The vinorelbine-induced phlebitis of dorsal foot vein in rat model is characterized by local redness, swelling, warmth, and pain from days 3 to 5, which largely resolve by day 9, although cord-like veins can still be observed. With disease progression, venous tissue develops edema, vessel wall thickening, and lumen narrowing. The venous intima shows rupture, roughening, and in some cases, complete loss.

Key words: Phlebitis, Dorsalis pedis vein, Vinorelbine, Rats

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