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- Yuan-Zheng Zhao, Min Zhang, Heng-Fang Liu, and Jian-Ping Wang.
- Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China.
- Neural Regen Res. 2015 Jul 1;10(7):1076-81.
AbstractIschemic edema can alter the structure and permeability of the blood-brain barrier. Recent studies have reported that progesterone reduces cerebral edema after cerebral ischemia. However, the underlying mechanism of this effect has not yet been elucidated. In the present study, progesterone effectively reduced Evans blue extravasation in the ischemic penumbra, but not in the ischemic core, 48 hours after cerebral ischemia in rats. Progesterone also inhibited the down-regulation of gene and protein levels of occludin and zonula occludens-1 in the penumbra. These results indicate that progesterone may effectively inhibit the down-regulation of tight junctions, thereby maintaining the integrity of the blood-brain barrier and reducing cerebral edema.
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