Normobaric oxygen therapy attenuates hyperglycolysis in ischemic stroke
Zhe Cheng
Feng-Wu Li
Christopher R.Stone
Kenneth Elkin
Chang-Ya Peng
Redina Bardhi
Xiao-Kun Geng
Yu-Chuan Ding
摘要：Normobaric oxygen therapy has gained attention as a simple and convenient means of achieving neuroprotection against the pathogenic cascade initiated by acute ischemic stroke. The mechanisms underlying the neuroprotective efficacy of normobaric oxygen therapy, however, have not been fully elucidated. It is hypothesized that cerebral hyperglycolysis is involved in the neuroprotection of normobaric oxygen therapy against ischemic stroke. In this study, Sprague-Dawley rats were subjected to either 2-hour middle cerebral artery occlusion followed by 3- or 24-hour reperfusion or to a permanent middle cerebral artery occlusion event. At 2 hours after the onset of ischemia, all rats received either 95％ oxygen normobaric oxygen therapy for 3 hours or room air. Compared with room air, normobaric oxygen therapy significantly reduced the infarct volume, neurological deficits, and reactive oxygen species and increased the production of adenosine triphosphate in ischemic rats. These changes were associated with reduced transcriptional and translational levels of the hyperglycolytic enzymes glucose transporter 1 and 3, phosphofructokinase 1, and lactate dehydrogenase. In addition, normobaric oxygen therapy significantly reduced adenosine monophosphate-activated protein kinase mRNA expression and phosphorylated adenosine monophosphate-activated protein kinase protein expression. These findings suggest that normobaric oxygen therapy can reduce hyperglycolysis through modulating the adenosine monophosphate-activated protein kinase signaling pathway and alleviating oxidative injury, thereby exhibiting neuroprotective effects in ischemic stroke. This study was approved by the Institutional Animal Investigation Committee of Capital Medical University (approval No. AEEI-2018-033) on August 13, 2018.
机标关键词：
分类号：R459.6(治疗学)R742(神经病学与精神病学)Q591.4(物质代谢及能量代谢)
资助基金：This study was partially supported by the National Natural Science Foundation of China,Nos.81802231(to FWL))This study was partially supported by the National Natural Science Foundation of China,Nos.81802231(81871838(to XKG)
论文发表日期：2021-06-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：7( 1017-1023 )
英文信息