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Specialty: Neurology
Nutrition: Chloride
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Total 108 results found since Jan 2013.
Grape seed proanthocyanidins attenuate apoptosis in ischemic stroke
AbstractGrape seed proanthocyanidins (GSP) has been reported to attenuate endoplasmic reticulum (ER) stress-induced apoptosis, which is associated with ischemic stroke. However, whether GSP pays crucial roles in ischemic stroke still remains unclear. The purpose of this study is to explore the role of GSP in ischemic stroke and the underlying mechanism. The ischemic stroke mouse model was established by middle cerebral artery occlusion. GSP administration was performed intragastrically. Long-term neurological outcome was assessed by the foot fault test after reperfusion. Brain injury was identified by infarct volume from 2...
Source: Acta Neurologica Belgica - March 4, 2019 Category: Neurology Source Type: research
Protective Effect of Ergothioneine Against Stroke in Rodent Models
AbstractErgothioneine (ET) is a naturally occurring antioxidant and cytoprotective agent that is synthesized by fungi and certain bacteria. Recent studies have shown a beneficial effect of ET on neurological functions, including cognition and animal models of depression. The aim of this study is to elucidate a possible effect of ET in rodent models of stroke. Post-ischemic intracerebroventricular (i.c.v.) infusion of ET significantly reduced brain infarct volume by as early as 1 day after infusion in rats, as shown by triphenyltetrazolium chloride (TTC) assay. There was a dose-dependent increase in protection, from 50 to...
Source: NeuroMolecular Medicine - October 19, 2022 Category: Neurology Source Type: research
Exercise pretreatment alleviates neuroinflammation and oxidative stress by TFEB-mediated autophagic flux in mice with ischemic stroke
CONCLUSIONS: Exercise pretreatment has the potential to improve the prognosis of ischemic stroke patients, and it can exert neuroprotective effects in ischemic stroke by inhibiting neuroinflammation and oxidative stress, which might be due to the TFEB-mediated autophagic flux. And targeting autophagic flux may be promising strategies for the treatment of ischemic stroke.PMID:36914085 | DOI:10.1016/j.expneurol.2023.114380
Source: Experimental Neurology - March 13, 2023 Category: Neurology Authors: Yun Zhao Zhongqiu Hong Yao Lin Weimin Shen Yuhan Yang Zejie Zuo Xiquan Hu Source Type: research
Motor deficit in the mouse ferric chloride-induced distal middle cerebral artery occlusion model of stroke.
In this study, we reproduced the recently developed model and expanded its characterization by thorough evaluation of blood supply, cerebral infarction, and motor function in adult male and female mice up to 14 days after stroke. Our observations indicate near complete interruption of blood flow in the distal MCA shortly after application of 20% ferric chloride over the artery through a cranial window, which remained occluded for at least 4 hours. As expected, infarction of the brain tissue, documented by TTC and hematoxylin stains, was restricted to the cerebral cortex. We also systematically evaluated motor impairment ...
Source: Behavioural Brain Research - December 4, 2019 Category: Neurology Authors: Syeara N, Alamri FF, Jayaraman S, Lee P, Karamyan ST, Arumugam TV, Karamyan VT Tags: Behav Brain Res Source Type: research
Behavioral and histopathological consequences of transient ischemic stroke in the Flinders Sensitive Line rat, a genetic animal model of depression
Brain Res. 2021 Sep 4:147648. doi: 10.1016/j.brainres.2021.147648. Online ahead of print.ABSTRACTPatients with depression have an increased risk for stroke, higher mortality rates following stroke and worse functional outcomes among survivors. Preclinical studies may help to better understand the underlying mechanisms linking these two diseases, but only a few animal studies have investigated the effects of prestroke depression. The present study investigates whether Flinders Sensitive Line (FSL) rats, a genetic depression model, respond differently to focal ischemic stroke compared to control strains (Flinders Resistant L...
Source: Brain Research - September 7, 2021 Category: Neurology Authors: Denise F Happ Gregers Wegener R Andrew Tasker Source Type: research
MicroRNA-193a-5p Rescues Ischemic Cerebral Injury by Restoring N2-Like Neutrophil Subsets
In conclusion, miR-193a-5p protects against cerebral ischemic injury by restoring neutrophil N2 phenotype-associated neuroinflammation suppr ession, likely, in part, via UBE2V2 induction.
Source: Translational Stroke Research - June 29, 2023 Category: Neurology Source Type: research
SLC26A11 Inhibition Reduces Oncotic Neuronal Death and Attenuates Stroke Reperfusion Injury
In this study, electrophysiological properties of chloride current in primary cultured neurons were characterized using low chloride solution, 4,4 ′-diisothiocyano-2,2′-stilbenedisulfonic acid, and SLC26A11-specific siRNA under physiological conditions or ATP-depleted conditions. In vivo effect of SLC26A11 was evaluated on a rat stroke reperfusion model. We found that SLC26A11 mRNA in primary cultured neurons was upregulated as early as 6 h after oxygen glucose deprivation, and later, the protein level was elevated accordingly. Blockade of SLC26A11 activity could reduce chloride entry and attenuate hypoxia-induced ne...
Source: Molecular Neurobiology - September 1, 2023 Category: Neurology Source Type: research
RNA-seq analysis of ischemia stroke and normal brain in a tree shrew model with or without type 2 diabetes mellitus
AbstractNowadays, similar strategies have been used for the treatment and prevention of acute stroke in both diabetes mellitus (DM) and non-DM populations. These strategies were analyzed to provide an experimental basis for the clinical prevention and treatment of stroke in patients both with and without DM. Tree shrews were randomly divided into control, DM, ischemic stroke (IS), and DMIS groups with 18 animals in each group. Serum biochemical indicators were used to assess metabolic status. Neural tissue damage was determined using triphenyl tetrazolium chloride staining, H-E staining, and electron microscopy. Differenti...
Source: Metabolic Brain Disease - August 21, 2021 Category: Neurology Source Type: research
Exposure to female estrous is beneficial for male mice against transient ischemic stroke.
CONCLUSION: Exposure to female estrous reduces mortality and improves functional recovery in MCAO male mice. The study provides the first evidence to support the importance of female interaction to male stroke rehabilitation.
ABBREVIATIONS: GAP-43: growth-associated protein-43; SYP: Synaptophysin; MCAO: middle cerebral artery occlusion; OVXs: ovariectomies; CCA: common carotid artery; ECA: external carotid artery; EFE: estrous female exposure; TTC: 2,3,5-triphenyltetrazolium chloride; PAGE: polyacrylamide gel electrophoresis; PVDF: polyvinylidene difluoride; ANOVA: analysis of variance; LSD: least significant differenc...
Source: Neurological Research - March 1, 2019 Category: Neurology Tags: Neurol Res Source Type: research
Three Dimensional-Arterial Spin Labeling Evaluation of Improved Cerebral Perfusion After Limb Remote Ischemic Preconditioning in a Rat Model of Focal Ischemic Stroke
ConclusionThree dimensional (3D) ASL can be used to evaluate LRP to improve stroke perfusion, and its protective effect may be closely related to LRP-induced vascular regeneration.
Source: Frontiers in Neuroanatomy - June 30, 2022 Category: Neurology Source Type: research
A Novel Rat Model of Embolic Cerebral Ischemia Using a Cell-Implantable Radiopaque Hydrogel Microfiber
We present a novel rat model of focal infarct restricted to the middle cerebral artery territory using a radiopaque hydrogel microfiber positioned under fluoroscopic guidance. By comparing the use of stem cell-containing versus non-containing fibers in this stroke model, it would be possible to determine the efficacy of"pure" cell transplantation in treating stroke.
Source: Translational Stroke Research - March 3, 2023 Category: Neurology Source Type: research
