Up-regulated HIF-1 alpha is involved in the hypoxic tolerance induced by hyperbaric oxygen preconditioning

作者：Peng Zhaoyun; Ren Ping; Kang Zhimin; Du Jing; Lian Qinglin; Liu Yun; Zhang John H; Sun Xuejun^*

来源：Brain Research, 2008, 1212: 71-78.

DOI：10.1016/j.brainres.2008.03.027

• hyperbaric oxygen preconditioning
• hypoxic tolerance
• hypoxia-inducible factor-1 alpha

Hyperbaric oxygen preconditioning (HBO-PC) has been shown to be effective in preventing hypoxic injuries in many animal models. The aim of the present study was to examine the hypoxic tolerance induced by HBO-PC and to explore the role of hypoxia-inducible factor-lot (HIF-1 alpha) in a global hypoxia model. Male mice received HBO-PC before hypoxia exposure and swimming. HBO-PC significantly prolonged the survival time and the tolerance time of swimming under normobaric hypoxia. HBO-PC increased the protein content of HIF-1 alpha and erythropoietin (EPO) in the cerebral cortex and hippocampus and prevented the changes of blood brain barrier (BBB) permeability and brain edema caused by hypoxia exposure. The results suggested that HBO-PC induced hypoxic tolerance in mice via up-regulation of HIF-1 alpha and its downstream genes.

• 出版日期2008-5-30
• 单位中国药科大学; 中国人民解放军第二军医大学