Astrachan D I, Gallager D W, Davis M
Brain Res. 1983 Oct 3;276(1):183-7. doi: 10.1016/0006-8993(83)90562-0.
Desensitization of the excitatory effects of alpha 1-adrenergic agonists on acoustic startle occurred 6 h after intrathecal administration of the alpha 1-adrenergic agonist, phenylephrine. This desensitization was associated with a decrease in alpha 1-adrenoceptor sites in the lumbar spinal cord.
鞘内注射α1肾上腺素能激动剂去氧肾上腺素6小时后,α1肾上腺素能激动剂对听觉惊吓的兴奋作用出现脱敏。这种脱敏与腰段脊髓中α1肾上腺素能受体位点的减少有关。