首页> 外文期刊>Life sciences >Effects of an endothelin ET(A)-receptor antagonist, S-0139, on cerebral vasospasm and behavioral changes in dogs intracisternally administered endothelin-1.
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Effects of an endothelin ET(A)-receptor antagonist, S-0139, on cerebral vasospasm and behavioral changes in dogs intracisternally administered endothelin-1.

机译:内皮素ET(A)受体拮抗剂S-0139对脑池痉挛内施用内皮素-1的狗的脑血管痉挛和行为变化的影响。

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摘要

The effects of an endothelin ET(A)-receptor selective antagonist, S-0139, were examined using dogs given endothelin-1 (ET-1) into the subarachnoid space. ET-1 at 40 pmol apparently constricted the basilar artery in anesthetized dogs and caused various grades of ataxia, facial clonus, nystagmus and other features in conscious dogs, partially mimicking those which have been reported for conscious rats. S-0139 could completely inhibit both the vasoconstriction and behavioral changes. It could also alleviate the behavioral changes caused by ET-1 in conscious dogs when given after the severe ataxia. We concluded that ET-1 in the subarachnoid space produces behavioral changes via endothelin ET(A)-receptor mediation similar to its cerebral vasoconstricting action, at least, in dogs.
机译:使用给予内皮素-1(ET-1)进入蛛网膜下腔的狗检查了内皮素ET(A)-受体选择性拮抗剂S-0139的作用。 40 pmol的ET-1明显收缩了麻醉犬的基底动脉,并导致清醒犬的各种程度的共济失调,面部阵挛,眼球震颤和其他特征,部分模仿了已有清醒大鼠的报道。 S-0139可以完全抑制血管收缩和行为改变。重度共济失调后给予清醒犬,它还可以缓解由ET-1引起的行为改变。我们得出的结论是,至少在狗中,蛛网膜下腔中的ET-1通过内皮素ET(A)-受体介导产生类似于其脑血管收缩作用的行为变化。

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