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Neuregulin-1/PI3K signaling effects on oligodendrocyte proliferation, remyelination and behaviors deficit in a male mouse model of ischemic stroke
In this study, we investigated the effect of neuregulin-1 (NRG1) on demyelination and neurological function in an ischemic stroke model, and further explored its neuroprotective mechanisms. Adult male ICR mice underwent photothrombotic ischemia surgery and were injected with NRG1 beginning 30 min after ischemia. Cylinder and grid walking tests were performed to evaluate the forepaw function. In addition, the effect of NRG1 on neuronal damage/death (Cresyl violet, CV), neuronal nuclei (NeuN), nestin, doublecortin (DCX), myelin basic protein (MBP), non-phosphorylated neurofilaments (SMI-32), adenomatous polyposis coli (APC),...
Source: Experimental Neurology - January 23, 2023 Category: Neurology Authors: Mai Yin Cui Yan Qiong Fu Zhuo Li Li Yu Zheng Yi Yu Chan Zhang Yun Qi Zhang Bing Rui Gao Wu Yue Chen Yun-Lyul Lee Moo-Ho Won Min Liao Yong Jian Bai Hui Chen Source Type: research

The Clinical Impact of Methotrexate-Induced Stroke-Like Neurotoxicity in Paediatric Departments: An Italian Multi-Centre Case-Series
ConclusionsSLS is a rare, well-characterized complication of MTX administration. Despite the small sample, we have been able to confirm some of the previous findings in literature. We also identified a linear correlation between age and severity of the disease, which could improve the future clinical management.
Source: Frontiers in Neurology - June 10, 2022 Category: Neurology Source Type: research

Dendrobium nobile Lindl. polysaccharides reduce cerebral ischemia/reperfusion injury in mice by increasing myeloid cell leukemia 1 via the downregulation of miR-134
Conclusions: DNLP may protect the brain and neurons from hypoxic damage in mice with ischemic stroke by activating MCL-1 and downregulating miR-134, providing a new therapeutic target for ischemic stroke.
Source: NeuroReport - February 3, 2021 Category: Neurology Tags: Cellular, Molecular and Developmental Neuroscience Source Type: research

Mixed Lineage Leukemia 1 Promoted Neuron Apoptosis in Ischemic Penumbra via Regulating ASK-1/TNF- α Complex
This study aimed to explore the underlying mechanism of neuron apoptosis in ischemic penumbra via histone methyltransferase (HMT) mixed lineage leukemia 1 (MLL1) mediated epigenetic pathway. Mouse IS model was established by middle cerebral artery occlusion (MCAO). Mouse primary cortical mixed cells were cultured and treated with oxygen–glucose deprivation (OGD) to simulate IS process. The expressions of apoptosis signal regulating kinase-1 (ASK-1), pASK-1, cleaved caspase-3, ASK-1/serine–threonine kinase receptor-associated protein (STRAP)/14-3-3 complex, ASK-1/tumor necrosis factor-α (TNF-α) complex, and MLL1 in mo...
Source: Frontiers in Neuroanatomy - July 24, 2020 Category: Neurology Source Type: research

Seizures during treatment of childhood acute lymphoblastic leukemia: A population-based cohort study.
CONCLUSION: Seizures are relatively common in ALL patients and occur most often in patients with PRES, SVT, or as an isolated symptom. Older children have higher risk of seizures. PMID: 32340855 [PubMed - as supplied by publisher]
Source: European Journal of Paediatric Neurology - April 17, 2020 Category: Neurology Authors: Anastasopoulou S, Heyman M, Eriksson MA, Niinimäki R, Taskinen M, Mikkel S, Vaitkeviciene GE, Johannsdottir IM, Myrberg IH, Jonsson OG, Als-Nielsen B, Schmiegelow K, Banerjee J, Ranta S, Harila-Saari A Tags: Eur J Paediatr Neurol Source Type: research

Neuroprotective activity of leukemia inhibitory factor is relayed through myeloid zinc finger-1 in a rat model of stroke
AbstractThe aim of this study was to determine whether leukemia inhibitory factor (LIF) exerts its neuroprotective effects through signal transduction of the transcription factor myeloid zinc finger-1 (MZF-1). According to the hypothesis of this study, MZF-1 mediates LIF-induced neuroprotective signaling during ELVO through increased expression and transcriptional activity. To determine the in vivo role of MZF-1 in LIF-induced neuroprotection, we used Genomatix software was used to MZF-1 sites in the promoter region of the rat superoxide dismutase 3 (SOD3) gene. Stroke was induced via middle cerebral artery occlusion, and ...
Source: Metabolic Brain Disease - January 5, 2019 Category: Neurology Source Type: research

Enhanced risk for specific somatic myeloproliferative neoplastic mutations in patients with stroke.
CONCLUSIONS: The prevalence of JAK2V617F mutation in stroke patients was higher than that seen in general population. Based on our newly developed probability stratification model, genotyping of JAK2V617F mutation in selected patients with stroke might be warranted. PMID: 28625126 [PubMed - as supplied by publisher]
Source: Current Neurovascular Research - June 18, 2017 Category: Neurology Authors: Chen CC, Hsu CC, Huang CE, Chen YY, Lung J, Ho HY, Li CP, Lee JD Tags: Curr Neurovasc Res Source Type: research

Leukemia Inhibitory Factor Protects Neurons from Ischemic Damage via Upregulation of Superoxide Dismutase 3
Abstract Leukemia inhibitory factor (LIF) has been shown to protect oligodendrocytes from ischemia by upregulating endogenous antioxidants. The goal of this study was to determine whether LIF protects neurons during stroke by upregulating superoxide dismutase 3 (SOD3). Animals were administered phosphate-buffered saline (PBS) or 125 μg/kg LIF at 6, 24, and 48 h after middle cerebral artery occlusion or sham surgery. Neurons were isolated from rat pups on embryonic day 18 and used between 7 and 15 days in culture. Cells were treated with LIF and/or 10 μM Akt inhibitor IV with PBS and 0.1 % DMSO acting as veh...
Source: Molecular Neurobiology - January 9, 2016 Category: Neurology Source Type: research

A Unique Presentation of Pediatric Stroke Attributed to Intrathecal Methotrexate (P3.309)
CONCLUSIONS:This is a rare case of ischemic watershed infarcts with diffuse reversible cerebral vasospasm, after intrathecal methotrexate. This highlights the need for further research into the pathogenesis of methotrexate neurotoxicity including endothelial damage.Study Supported by:Disclosure: Dr. Ilyas has nothing to disclose. Dr. Williams has nothing to disclose.
Source: Neurology - April 9, 2014 Category: Neurology Authors: Ilyas, M., Williams, M. Tags: Neurologic Complications of Cancer Source Type: research

Role of beta‐defensin 2 and interleukin‐4 receptor as stroke outcome biomarkers
Abstract Acute ischemic stroke is a complex disease with huge interindividual evolution variability that makes challenging the prediction of an adverse outcome. Our aim was to study the association of bloodstream signatures to early neurological outcome after stroke, by combining a subpooling of samples strategy with protein array discovery approach. Plasma samples from 36 acute stroke patients (< 4.5 h from onset) were equally pooled within outcome groups: worsening, stability, and improvement (n = 3 pools of four patients each, for each outcome group). These nine pools were screened using a 177 antibodies library,...
Source: Journal of Neurochemistry - February 11, 2014 Category: Neurology Authors: Teresa García‐Berrocoso, Dolors Giralt, Alejandro Bustamante, Victor Llombart, Marta Rubiera, Anna Penalba, Cristina Boada, Marc Espadaler, Carlos Molina, Joan Montaner Tags: Original Article Source Type: research