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Metabolomic Characterization of Acute Ischemic Stroke Facilitates Metabolomic Biomarker Discovery
In this study, we performed high-throughput target metabolic analysis on 44 serum samples, including 22 from AIS patients and 22 from healthy controls. Multiple-reaction monitoring analysis of 180 common metabolites revealed a total of 29 metabolites that changed significantly (VIP > 1, p < 0.05). Multivariate statistical analysis unraveled a striking separation between AIS patients and healthy controls. Comparing the AIS group with the control group, the contents of argininosuccinic acid, beta-D-glucosamine, glycerophosphocholine, L-abrine, and L-pipecolic acid were remarkably downregulated in AIS patients. Twenty-n...
Source: Applied Biochemistry and Biotechnology - July 5, 2022 Category: Biochemistry Authors: Biao Qi Yanyu Zhang Bing Xu Yuhao Zhang Guoqiang Fei Ling Lin Qiuping Li Source Type: research

Neuroprotective and Proneurogenic Effects of Glucosamine in an Internal Carotid Artery Occlusion Model of Ischemia
AbstractNeuroprotective, antineuroinflammatory, and proneurogenic effects of glucosamine, a naturally occurring amino sugar, have been reported in various animal models of brain injury including cerebral ischemia and hypoxic brain damage. Given that clinical translation of therapeutic candidates identified in animal models of ischemic stroke has remained unsatisfactory in general, possibly due to inadequacy of existing models, we sought to study the effects of glucosamine in a recently developed, clinical condition mimicking mouse model of internal cerebral artery occlusion. In this model of mild to moderate striatal damag...
Source: NeuroMolecular Medicine - November 27, 2021 Category: Neurology Source Type: research

Increasing O-GlcNAcylation is neuroprotective in young and aged brains after ischemic stroke
In this study, using transient ischemic stroke models, we first demonstrated that neuron-specific overexpression of Xbp1s improved outcome, and pharmacologically boosting O-GlcNAcylation with thiamet-G reversed worse outcome observed in neuron-specific Xbp1 knockout mice. We further showed that thiamet-G treatment improved long-term functional recovery in both young and aged animals after transient ischemic stroke. Mechanistically, using an analytic approach developed here, we discovered that availability of UDP-GlcNAc was compromised in the aged brain, which may constitute a novel mechanism responsible for the impaired O-...
Source: Experimental Neurology - February 18, 2021 Category: Neurology Authors: Zhuoran Wang Xuan Li Ivan Spasojevic Liping Lu Yuntian Shen Xingguang Qu Ulrike Hoffmann David S Warner Wulf Paschen Huaxin Sheng Wei Yang Source Type: research

Increasing O-GlcNAcylation is neuroprotective in young and aged brains after ischemic stroke.
In this study, using transient ischemic stroke models, we first demonstrated that neuron-specific overexpression of Xbp1s improved outcome, and pharmacologically boosting O-GlcNAcylation with thiamet-G reversed worse outcome observed in neuron-specific Xbp1 knockout mice. We further showed that thiamet-G treatment improved long-term functional recovery in both young and aged animals after transient ischemic stroke. Mechanistically, using an analytic approach developed here, we discovered that availability of UDP-GlcNAc was compromised in the aged brain, which may constitute a novel mechanism responsible for the impaired O-...
Source: Experimental Neurology - February 15, 2021 Category: Neurology Authors: Wang Z, Li X, Spasojevic I, Lu L, Shen Y, Qu X, Hoffmann U, Warner DS, Paschen W, Sheng H, Yang W Tags: Exp Neurol Source Type: research

Different types of stroke linked to different foods
Fibre linked to lower ischaemic stroke risk Related items fromOnMedica Obesity associated with worse mortality and higher CVD risk Heart disease and stroke deaths plummet in Scotland Vegetarians and pescatarians have lower risk of CHD Glucosamine supplements may reduce stroke risk Young adults with hypertension or hypercholesterolaemia have greater risk of heart disease in later life
Source: OnMedica Latest News - February 23, 2020 Category: UK Health Source Type: news

Apelin-13 Suppresses Neuroinflammation Against Cognitive Deficit in a Streptozotocin-Induced Rat Model of Alzheimer ’s Disease Through Activation of BDNF-TrkB Signaling Pathway
Conclusion The data in this manuscript demonstrates that apelin-13 upregulates BDNF against STZ-induced congnitive impairment by suppressing glial cell activity and inflammatory factors release. This suggests apelin signaling may be a new target in the treatment of AD. Ethics Statement All experimental protocols were carried out according to the National Institutes of Health Guide for the Care and Use of Laboratory Animals approved by the Central South University at XiangYa Animal Care and Use Committee. Author Contributions XqQ and LH conceived the study and contributed to its experimental design. HqL carried out the...
Source: Frontiers in Pharmacology - April 15, 2019 Category: Drugs & Pharmacology Source Type: research

miR-9 Upregulation Integrates Post-ischemic Neuronal Survival and Regeneration In Vitro.
Abstract The irrefutable change in the expression of brain-enriched microRNAs (miRNAs) following ischemic stroke has promoted the development of radical miRNA-based therapeutics encompassing neuroprotection and neuronal restoration. Our previous report on the systems-level prediction of miR-9 in post-stroke-induced neurogenesis served as a premise to experimentally uncover the functional role of miR-9 in post-ischemic neuronal survival and regeneration. The oxygen-glucose deprivation (OGD) in SH-SY5Y cells significantly reduced miR-9 expression, while miR-9 mimic transfection enhanced post-ischemic neuronal cell v...
Source: Cellular and Molecular Neurobiology - December 11, 2018 Category: Cytology Authors: Nampoothiri SS, Rajanikant GK Tags: Cell Mol Neurobiol Source Type: research

Hypophosphorylation of Ribosomal Protein S6 is a Molecular Mechanism Underlying Ischemic Tolerance Induced by either Hibernation or Preconditioning
This article is protected by copyright. All rights reserved.
Source: Journal of Neurochemistry - September 16, 2015 Category: Neuroscience Authors: Shin‐ichi Miyake, Hideaki Wakita, Joshua D. Bernstock, Paola Castri, Christl Ruetzler, Junko Miyake, Yang‐ja Lee, John M. Hallenbeck Tags: Original Article Source Type: research

Fullerenols and glucosamine fullerenes reduce infarct volume and cerebral inflammation after ischemic stroke in normotensive and hypertensive rats.
In conclusion, OH-F and GlcN-F lead to a reduction of cellular damage and inflammation after stroke, rendering these compounds attractive therapeutics for stroke. PMID: 25625851 [PubMed - as supplied by publisher]
Source: Experimental Neurology - January 24, 2015 Category: Neurology Authors: Fluri F, Grünstein D, Cam E, Ungethuem U, Hatz F, Schäfer J, Samnick S, Israel I, Kleinschnitz C, Orts-Gil G, Moch H, Zeis T, Schaeren-Wiemers N, Seeberger P Tags: Exp Neurol Source Type: research