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Neuroprotective Effect of Dexmedetomidine on Cerebral Ischemia-Reperfusion Injury in Rats
CONCLUSION: Dexmedetomidine has a dose-dependent protective effect on cerebral ischemic injury in rats. The neuroprotective effects of dexmedetomidine are achieved, in part, by reducing the oxidative stress response, inhibiting glial overactivation, and inhibiting expression levels of apoptosis-related proteins.PMID:37235497
Source: Alternative Therapies in Health and Medicine - May 26, 2023 Category: Complementary Medicine Authors: Jianhong Lyu Yang Zhou Min Zhang Lingling Tang Xudan Bao Zaijiao Sun Li Huang Liqin Zhao Source Type: research

Stellate ganglion block suppresses hippocampal ferroptosis to attenuate cerebral ischemia-reperfusion injury via the Hippo pathway
In conclusion, SGB inhibited ferroptosis of hippocampal neurons via activating the Hippo pathway and thereby alleviated I/R injury. The data provide a novel insight into the treatment of ischemic stroke and even other ischemic encephalopathies.Graphical Abstract
Source: Metabolic Brain Disease - March 16, 2023 Category: Neurology Source Type: research

Integrated 16S rRNA Gene Sequencing and LC-MS Analysis Revealed the Interplay Between Gut Microbiota and Plasma Metabolites in Rats With Ischemic Stroke
This study aimed to reveal the specific asso-ciation between the microbiota and the metabolites in IS using integrated 16S rRNA gene sequencing and liquid chromatography-mass spectrometry (LC-MS) analysis. Male Sprague Dawley (SD) rats were divided into three groups: normal group (n = 8, Normal), model group (n = 9, IS), and sham-operated group (n = 8, Sham). Rats in the IS group were induced by middle cerebral artery occlusion (MCAO), and rats in the Sham group received an initial anesthesia and neck incision only. A neurological function test and 2,3,5-triphenyltetrazolium chloride (TTC) staining were used to...
Source: Journal of Molecular Neuroscience - October 1, 2021 Category: Neuroscience Source Type: research

Changes in electrolyte concentrations alter the impedance during ischemia-reperfusion injury in rat brain
In this study, changes in the bio-impedance spectroscopy using a two-electrode method with varying frequencies from 100 to 35  kHz have been assessed in a model of global cerebral ischemia in anesthetized rats during normal, occlusion and reperfusion conditions. Global cerebral ischemia was induced by bilateral common carotid artery occlusion for 40  min following 40 min of reperfusion. The concentration of sodium, potassium, calcium and chloride ions in the whole rat brain was determined by electrolyte analyzer. For the interpretation of in vivo results, changes in electrical impedance with varying concentrati...
Source: Physiological Measurement - October 29, 2019 Category: Physiology Authors: Gaurav Kumar, Uvanesh Kasiviswanathan, Sumedha Mukherjee, Sanjeev Kumar Mahto, Neeraj Sharma and Ranjana Patnaik Source Type: research

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