Project supported by the National Natural Science Foundation of China (No 30371637) and the Scientific Foundation of Education Ministry of China (No 20050335105).
Caffeic acid ameliorates early and delayed brain injuries after focal cerebral ischemia in rats1
Version of Record online: 18 SEP 2006
Acta Pharmacologica Sinica
Volume 27, Issue 9, pages 1103–1110, September 2006
How to Cite
ZHOU, Y., FANG, S.-h., YE, Y.-l., CHU, L.-s., ZHANG, W.-p., WANG, M.-l. and WEI, E.-q. (2006), Caffeic acid ameliorates early and delayed brain injuries after focal cerebral ischemia in rats. Acta Pharmacologica Sinica, 27: 1103–1110. doi: 10.1111/j.1745-7254.2006.00406.x
- Issue online: 18 SEP 2006
- Version of Record online: 18 SEP 2006
- Received 2006-03-22 Accepted 2006-05-15
- caffeic acid;
- focal cerebral ischemia;
Aim: To investigate the effects of caffeic acid on early and delayed injuries after focal cerebral ischemia in rats, and the possible relation to 5-lipoxygenase inhibition. Methods: Transient focal cerebral ischemia was induced by middle cerebral artery occlusion in Sprague-Dawley rats. Caffeic acid (10 and 50 mg/kg) was ip injected for 5 d after ischemia. The brain injuries were observed, and the levels of cysteinyl leukotrienes and leukotriene B4 in the brain tissue were measured. Results: Caffeic acid (50 mg/kg) ameliorated neurological dysfunction and neuron loss, and decreased infarct volume 24 h after ischemia; it attenuated brain atrophy, infarct volume, and particularly astrocyte proliferation 14 d after ischemia. In addition, it reduced the production of leukotrienes (5-lipoxygenase metabolites) in the ischemic hemispheres 3 h and 7 d after ischemia. Conclusion: Caffeic acid has protective effect on both early and delayed injuries after focal cerebral ischemia in rats; and this effect may partly relate to 5-lipoxygenase inhibition.