首页> 外文期刊>Endothelium: Journal of endothelial cell research >Acute cocaine induces endothelin-1-dependent constriction of rabbit basilar artery.
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Acute cocaine induces endothelin-1-dependent constriction of rabbit basilar artery.

机译:急性可卡因可诱导兔基底动脉内皮素-1依赖性收缩。

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摘要

It has been postulated that ischemic stroke due to acute cocaine usage involves constriction of the cerebral vasculature. However, the mechanism underlying the constriction remains unclear. This study tested whether cocaine constriction was mediated via endothelin-1. Cocaine suffusion induced maintained constriction in the rabbit basilar artery in situ. The constriction was relaxed by PD145065, an endothelin A and B receptor antagonist. These results support the hypothesis that constriction of the cerebral vasculature due to acute cocaine exposure is via endothelin-1 release. Endothelin receptor antagonists may be of therapeutic benefit in cerebrovascular pathophysiologies involving cocaine constriction.
机译:据推测,由于急性使用可卡因引起的缺血性中风涉及脑血管的收缩。但是,收缩的机制尚不清楚。这项研究测试了可卡因收缩是否通过内皮素1介导。可卡因灌流可引起兔基底动脉原位维持收缩。 PD145065是一种内皮素A和B受体拮抗剂,可缓解狭窄。这些结果支持这样的假设,即由于急性可卡因暴露而导致的脑血管收缩是通过内皮素-1的释放。内皮素受体拮抗剂在涉及可卡因收缩的脑血管病理生理学中可能具有治疗作用。

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