alexa N2 extenuates experimental ischemic stroke through platelet aggregation inhibition.
Pharmaceutical Sciences

Pharmaceutical Sciences

Biochemistry & Pharmacology: Open Access

Author(s): Yang L, Chen X, Wang S, Fei Y, Wang D,

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Abstract INTRODUCTION: Thromboxane A2 (TXA2) can induce the platelet aggregation and lead to thrombosis. This will cause the low-reflow phenomenon after ischemic stroke and aggravate the damage of brain issues. Therefore, it is potential to develop the drugs inhibiting TXA2 pathway to treat cerebral ischemia. AIM: This study aims to prove the protective effect of N2 (4-(2-(1H-imidazol-1-yl) ethoxy)-3-methoxybenzoic acid) on focal cerebral ischemia and reperfusion injury through platelet aggregation inhibition. MATERIALS AND METHODS: Middle cerebral artery occlusion/reperfusion (MCAO/R) is used as the animal model. Neurological deficit score, Morris water maze, postural reflex test, Limb-use asymmetry test, infarct volume, and water content were performed to evaluate the protective effect of N2 in MCAO/R rats. 9, 11-dieoxy-11α, 9α-methanoepoxyprostaglandin F2α (U46619) or adenosine diphosphate (ADP) was used as the inducer of platelet aggregation. RESULTS AND CONCLUSIONS: N2 can improve the motor function, learning and memory ability in MCAO/R rats while reducing the infarct volume. N2 can inhibit TXA2 formation but promote PGI2, and can inhibit platelet aggregation induced by U46619 and ADP. Further, N2 inhibits thrombosis with a minor adverse effect of bleeding than Clopidogrel. In conclusion, N2 can produce the protective effect on MCAO/R brain injury through inhibiting TXA2 formation, platelet aggregation and thrombosis. Copyright © 2015 Elsevier Ltd. All rights reserved. This article was published in Thromb Res and referenced in Biochemistry & Pharmacology: Open Access

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