Acta Anatomica Sinica ›› 2018, Vol. 49 ›› Issue (6): 703-707.doi: 10.16098/j.issn.0529-1356.2018.06.001

• Neurobiology •     Next Articles

Cyclooxygenase-2 promoting the expression of E-selectin and the cerebral protective effects of breviscapine after cerebral ischemic-reperfusion injury in rats

YANG Ying-chun1 REN Zhan-chuan1* CHEN Xin-ji2   

  1. 1.Department of Anatomy; 2.Anatomy Laboratory, Fenyang Colleage of  Shanxi Medical University, Shanxi Fenyang 032200, China
  • Received:2018-01-19 Revised:2018-03-23 Online:2018-12-06 Published:2019-02-28
  • Contact: REN Zhan-chuan E-mail:yf53562018@sina.com

Abstract:

Objective To investigate the mechanisms of cyclooxygenase-2 (COX-2) aggravating cerebral injury and the protective effects of breviscapine after cerebral ischemic-reperfusion injury, by observing the effect of COX-2 on the expression of E-selectin and the effect of breviscapine on the expression of COX-2 and E-selectin. Methods Forty-eight SD rats were randomly divided into sham group, saline group, SC-58125 group and breviscapine treatment group, at ischemia hour 2/reperfusion hour 24. Nerve function scores were used to observe the neurobehavioral changes of rats, 2,3,5-triphenyltetrazolium chloride (TTC) staining was used to assess the changes of cerebral infarction volume. Western blotting and enzyme-linked immunosorbent assay were used to detect the expression of COX-2 and E-selectin. Results In SC-58125 group and breviscapine treatment group, nerve function scores, cerebral infarction volume and COX-2 and E-selectinwere significantly decreased. Conclusion COX-2 aggravates inflammatory response of ischemia area by promoting the expression of E-selectin; breviscapine may play a protective role by inhibiting the expression of COX-2 and E-selectin.

Key words: Brain, Ischemia-reperfusion injury, Cyclooxygenase-2, E-selectin, Breviscapine, Western blotting, Rat