Regulation of Kv2.1 phosphorylation in an animal model of anoxia

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Conditions such as hypoxia and anoxia inflict serious damage to the brain and continue to be major medical problems. However, the molecular mechanisms that give rise to such damage are not well understood. To elucidate these mechanisms, we established a clinically relevant rodent model of anoxia/recovery by monitoring blood gas levels after oxygen deprivation. Using this animal model, we examined the regulation of Kv2.1, a voltage-gated potassium channel that plays pivotal roles in the homeostasis and survival of neurons. We found that exposure to anoxia induces rapid dephosphorylation of Kv2.1 in the brain, which can be blocked by pre-administration of a NMDA-type glutamate receptor antagonist, memantine. Furthermore, this change is rapidly reversed as the animal recovers from anoxic stress. These results suggest that Kv2.1 is tightly regulated in a clinically relevant animal model of anoxia and further implicate its role in the homeostasis of neurons during anoxic stress.

本文言語English
ページ(範囲)85-91
ページ数7
ジャーナルNeurobiology of Disease
38
1
DOI
出版ステータスPublished - 2010 4月

ASJC Scopus subject areas

  • 神経学

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