天津医药 ›› 2016, Vol. 44 ›› Issue (11): 1351-1355.doi: 10.11958/20160554

• 实验研究 • 上一篇    下一篇

热敏灸对脑缺血再灌注损伤大鼠大脑皮质 CD11b 表达的影响

龚丽丽 1, 张毫 1, 谢斌 1, 欧阳昕 2, 肖爱娇 1△   

  1. 1 江西中医药大学基础医学院 (邮编 330004), 2 2015 级针康 1 班
  • 收稿日期:2016-06-14 修回日期:2016-08-18 出版日期:2016-11-15 发布日期:2016-11-15
  • 通讯作者: △通讯作者 E-mail: xaj527@163.com E-mail:xaj527@163.com
  • 作者简介:龚丽丽 (1988), 女, 硕士研究生, 主要从事中医药防治神经疾病基础研究工作
  • 基金资助:
    国家自然科学基金资助项目 (81060305, 81660819); 江西省自然科学基金资助项目 (20151BAB205068, 20161BBH80053); 江西 省卫生计生委中医药科研计划项目 (2014Z003); 江西中医药大学课题 (2014ZR018, 2015JZZDXK024)

Effects of heat-sensitive moxibustion on the expression of CD11b in cortex of focal cerebral ischemia-reperfusion injury model rats

GONG Lili1, ZHANG Hao1, XIE Bin1, OUYANG Xin2, XIAO Aijiao1△#br#   

  1. 1 Basical Medical School, 2 Class One Grade 2015, Science of Acupuncture, Moxibustion and Rehabilitation, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
  • Received:2016-06-14 Revised:2016-08-18 Published:2016-11-15 Online:2016-11-15
  • Contact: △Corresponding Author E-mail: xaj527@163 E-mail:xaj527@163.com

摘要: 目的 制备局灶性脑缺血性再灌注损伤大鼠模型, 观察热敏灸对模型大鼠大脑皮质 CD11b 表达的影响。 方法 雄性 SD 大鼠 51 只, 采用随机数字表法将大鼠分为假手术组 (n=10)、 模型组 (n=14)、 艾灸组 (n=27)。艾灸组 根据艾灸前后尾温变化再分为非热敏灸组 (n=13) 和热敏灸组 (n=14)。应用线栓法制备局灶性脑缺血再灌注损伤大 鼠模型。采用神经功能缺失评分法观察大鼠的行为学表现; 光照测痛仪测定大鼠的甩尾潜伏期; TTC 染色法观察大 鼠的脑梗死面积; 免疫组织化学法检测大脑皮质 CD11b 的表达。结果 术后 3 d 时, 非热敏灸组(9.32±1.11) s 与热 敏灸组(8.69±0.51) s 大鼠甩尾潜伏期均明显短于模型组(12.21±1.04) s, 以热敏灸组缩短更为明显; 非热敏灸组 (20.59±2.25) %和热敏灸组(13.18±3.50) %大鼠脑梗死面积小于模型组(32.22±14.20) %, 以热敏灸组缩小更为明显; 非热敏灸组 (5.40±0.58) 和热敏灸组 (2.89±0.71) 大鼠大脑皮质 CD11b 表达低于模型组 (7.83±1.60), 以热敏灸组降低 更为明显。结论 热敏灸具有改善大鼠的感觉功能、 减轻大鼠脑缺血再灌注损伤的作用, 减少大脑皮质 CD11b 的表 达、 减轻炎症反应可能是其作用机制之一。

关键词: 艾炷灸, 脑缺血, 再灌注损伤, 抗原, CD11b, 大鼠, Sprague-Dawley, 甩尾潜伏期

Abstract: Objective To observe the effect of heat-sensitive moxibustion on the expression of CD11b in focal cerebral ischemia/reperfusion (I/R) injury model rats. Methods Fifty-one male SD rats were randomly divided into three groups, sham- operated group (n=10), I/R injury group (n=14) and moxibustion group (n=27). According to changes of tail temperature before and after moxibustion, moxibustion group was subdivided into non heat-sensitive moxibustion group (n= 13) and heat- sensitivel moxibustion group (n=14). Focal cerebral ischemia- reperfusion injury was induced by middle cerebral artery occlusion for 2 hours and reperfusion for 3 days. Behavioral performance was tested using neurologic deficit scores. Tail-flick latency was determined with tail flick analgesia meter. Infarct areas were examined using TTC staining, and cortical expression of CD11b was measured using immunohistochemical staining. Results After 3 d of operation, the tail- flick latency was significantly shorter in non heat- sensitive moxibustion group (9.32 ± 1.11) s and heat- sensitive moxibustion group (8.69±0.51) s than that of model group (12.21±1.04) s. The area of cerebral infarction was smaller in non heat-sensitive moxibustion group (20.59±2.25)% and heat-sensitive moxibustion group (13.18±3.50)% than that in model group (32.22 ± 14.20)% . Compared with model group, the expression of CD11b was significantly decreased in non heatsensitive moxibustion group and heat-sensitive moxibustion group (P<0.05). Conclusion Heat-sensitive moxibustion can reduce the damage of cerebral inchemia-reperfusion, which might be through decreasing expression of CD11b.

Key words: Moxa Cone Moxibustion, brain ischemia, reperfusion injury, antigens, CD11b, rats, Sprague-Dawley, tailflick latency