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Osteopontin Mediates Hyperbaric Oxygen Preconditioning-Induced Neuroprotection Against Ischemic Stroke
Abstract Neurosurgical operations may result in surgical injury which would lead to postoperative neurological deficits. Hyperbaric oxygen preconditioning (HBO-PC) may be beneficial for such people. However, the exact mechanism underlying HBO-PC is not well known yet. The aim of this study is to explore the role of osteopontin (OPN) in HBO-PC-induced neuroprotection. The study consisted of two experiments. In experiment 1, Sprague Dawley (SD) rats were divided into four groups: sham group, HBO-PC sham group, stroke group, and HBO-PC group (HBO-PC + stroke). The animals in the second experiment were randomly a...
Source: Molecular Neurobiology - July 21, 2015 Category: Neurology Source Type: research

Combination of HBO and Memantine in Focal Cerebral Ischemia: Is There a Synergistic Effect?
In this study, we investigated whether or not MEM could prolong the narrow therapeutic window of HBO treatment. Transient focal cerebral ischemia was induced in male Sprague–Dawley rats by middle cerebral artery occlusion (MCAO) for 120 min. MCAO produced neurobehavioral deficits, increased infarction volume, increased Evans blue (EB) content and levels of pro-inflammatory factors, as well as depleted glutathione (GSH), and reduced catalase (CAT) and superoxide dismutase (SOD) activity in the ischemic ipsilateral hemisphere. The combination of 5 mg/kg MEM treatment 15 min after the onset of ischemic event and HBO ther...
Source: Molecular Neurobiology - October 30, 2014 Category: Neurology Source Type: research