Cyclooxygenase-2抑制剂减少脑小血管疾病大鼠模型的血管壁厚和改善其认知障碍

Title:A Cyclooxygenase-2 Inhibitor Reduces Vascular Wall Thickness and Ameliorates Cognitive Impairment in a Cerebral Small Vessel Diseases Rat Model

Volume: 12 Issue: 7

Author(s): Jie Tang, Weizhong Xiao, Qinghua Li, Qiuqiong Deng, Xinquan Chu, Yang Chen, Danhong Pan and Jianhui Fu

Affiliation:

关键词: 脑小血管病，认知障碍，胶原I，换氧化酶-2，纤连蛋白，高血压

摘要: Cerebral small vessel disease (CSVD) is a group of diseases that originate from changes in cerebral small vessels and that cause many conditions, such as cognitive impairment. However, there is no effective therapy for these diseases. Recent studies have suggested that inflammation is associated with this disease. Cyclooxygenase-2 (cox-2) is an inflammatory mediator; however, whether a cox-2 inhibitor could protect against the CSVD progression remains unknown. In the present study, stroke-prone spontaneously hypertensive rats (SHRsp) were used as a model of CSVD, and Sprague Dawley (SD) rats served as the control. SHRsp were treated with the cox-2 inhibitor celecoxib or vehicle. The Morris water maze test was performed, and vascular morphometry and the expression of collagen I and fibronectin were examined in cerebral small vessels and cerebral tissue. The results revealed that thickened small veesel walls, increased expression of collagen I and fibronectin and impaired cognitive function in SHRsp compared with SD rats. Additionally, celecoxib significantly down-regulated the expression of collagen I and fibronectin, attenuated the increase in vascular wall thickness and ameliorates the cognitive impairment. Our study indicated that this cox-2 inhibitor may serve as a promising candidate for the pharmacological intervention of CSVD.

Cite this article as:

Jie Tang, Weizhong Xiao, Qinghua Li, Qiuqiong Deng, Xinquan Chu, Yang Chen, Danhong Pan and Jianhui Fu , A Cyclooxygenase-2 Inhibitor Reduces Vascular Wall Thickness and Ameliorates Cognitive Impairment in a Cerebral Small Vessel Diseases Rat Model, Current Alzheimer Research 2015; 12 (7) . https://dx.doi.org/10.2174/1567205012666150710104924