Effects of the Glucocorticoid-Mediated Mitochondrial Translocation of Glucocorticoid Receptors on Oxidative Stress and Pyroptosis in BV-2 Microglia
This study was divided into two parts: a glucocorticoid receptor (GR) mitochondrial translocation intervention experiment and a mitochondrial oxidative stress inhibition experiment. BV-2 microglia were stimulated with dexamethasone (DEX) and treated with either tubastatin-A or mitoquinone (MitoQ) for 24 h. Our results showed that DEX increased the translocation of GRs to mitochondria, and this effect was accompanied by decreases in the expression of mitochondrially encoded cytochrome c oxidase 1 (MT-CO1) and mitochondrially encoded cytochrome c oxidase 3 (MT-CO3) and increases in the expression of NOD-like receptor thermal...
Source: Journal of Molecular Neuroscience - March 13, 2024 Category: Neuroscience Source Type: research

Induced Mesenchymal Stem Cells-Small Extracellular Vesicles Alleviate Post-stroke Cognitive Impairment by Rejuvenating Senescence of Neural Stem Cells
In this study, neural stem cells (NSCs) under conditions of oxygen –glucose deprivation (OGD) in vitro and following middle cerebral artery occlusion (MCAO) in vivo were explored. Transcriptome sequencing revealed a decline in NSC differentiation and neurogenesis after OGD exposure, which was related to cellular senescence. This observation was corroborated by in creased senescence markers in the MCAO mouse model, reduction in NSC numbers, and decline in neurogenesis. Importantly, iMSC-sEVs (induced mesenchymal stem cells-small extracellular vesicles) have the therapeutic potential to alleviate NSC senescence and rejuven...
Source: Journal of Molecular Neuroscience - March 13, 2024 Category: Neuroscience Source Type: research

Potential Impact of Hypoxic Astrocytes on the Aggravation of Depressive Symptoms in Parkinson ’s Disease
In this study, we presented our findings demonstrating distinct characteristics of cortical astrocy tes in PD patients compared to reactivated glial cells in the substantia nigra. We identified a subset of differentially expressed genes associated with depressive disorders from PD-associated cortical astrocytes. Furthermore, we uncovered the potential involvement of the hypoxia signaling in drivin g cortical astrocytic dysfunctions. Through a comprehensive investigation utilizing transcriptome and chromatin accessibility analyses on cultured human astrocytes, we revealed that hypoxic treatment could induce similar expressi...
Source: Journal of Molecular Neuroscience - March 5, 2024 Category: Neuroscience Source Type: research

Correction to: Pre-Injection of Small Interfering RNA (siRNA) Promotes c-Jun Gene Silencing and Decreases the Survival Rate of Axotomy-Injured Spinal Motoneurons in Adult Mice
(Source: Journal of Molecular Neuroscience)
Source: Journal of Molecular Neuroscience - February 29, 2024 Category: Neuroscience Source Type: research

Akira Arimura Foundation 2025 –2026 Young Investigator Grant Application Procedures
(Source: Journal of Molecular Neuroscience)
Source: Journal of Molecular Neuroscience - February 26, 2024 Category: Neuroscience Source Type: research

Pivotal Role of GSTO2 in Ferroptotic Neuronal Injury After Intracerebral Hemorrhage
AbstractPrevious research has found that an adaptive response to ferroptosis involving glutathione peroxidase 4 (GPX4) is triggered after intracerebral hemorrhage. However, little is known about the mechanisms underlying adaptive responses to ferroptosis. To explore the mechanisms underlying adaptive responses to ferroptosis after intracerebral hemorrhage, we used hemin-treated HT22 cells to mimic brain injury after hemorrhagic stroke in vitro to evaluate the antioxidant enzymes and performed bioinformatics analysis based on the mRNA sequencing data. Further, we determined the expression of GSTO2 in hemin-treated hippocamp...
Source: Journal of Molecular Neuroscience - February 22, 2024 Category: Neuroscience Source Type: research

Effect of Intracerebroventricular Administration of Galanin-Like Peptide on Hepatokines in C57BL/6  J Mice
In this study, we investigated the effects of GALP on glucose and lipid metabolism in the liver. Nine-week-old male C57BL / 6 J mice were administered a single intracerebroventricular dose of sal ine or GALP and dissected 16 h later. There were no significant between-group differences in body weight and blood glucose levels. With regard to gene and protein expression, G6Pase associated with hepatic gluconeogenesis was significantly reduced in the GALP group. In addition, the hepatokines sel enoprotein P and fetuin-A, which induce insulin resistance in the liver, were significantly decreased in the GALP group. These resul...
Source: Journal of Molecular Neuroscience - February 22, 2024 Category: Neuroscience Source Type: research

Pivotal Role of GSTO2 in Ferroptotic Neuronal Injury After Intracerebral Hemorrhage
AbstractPrevious research has found that an adaptive response to ferroptosis involving glutathione peroxidase 4 (GPX4) is triggered after intracerebral hemorrhage. However, little is known about the mechanisms underlying adaptive responses to ferroptosis. To explore the mechanisms underlying adaptive responses to ferroptosis after intracerebral hemorrhage, we used hemin-treated HT22 cells to mimic brain injury after hemorrhagic stroke in vitro to evaluate the antioxidant enzymes and performed bioinformatics analysis based on the mRNA sequencing data. Further, we determined the expression of GSTO2 in hemin-treated hippocamp...
Source: Journal of Molecular Neuroscience - February 22, 2024 Category: Neuroscience Source Type: research

Effect of Intracerebroventricular Administration of Galanin-Like Peptide on Hepatokines in C57BL/6  J Mice
In this study, we investigated the effects of GALP on glucose and lipid metabolism in the liver. Nine-week-old male C57BL / 6 J mice were administered a single intracerebroventricular dose of sal ine or GALP and dissected 16 h later. There were no significant between-group differences in body weight and blood glucose levels. With regard to gene and protein expression, G6Pase associated with hepatic gluconeogenesis was significantly reduced in the GALP group. In addition, the hepatokines sel enoprotein P and fetuin-A, which induce insulin resistance in the liver, were significantly decreased in the GALP group. These resul...
Source: Journal of Molecular Neuroscience - February 22, 2024 Category: Neuroscience Source Type: research

MRPS9-Mediated Regulation of the PI3K/Akt/mTOR Pathway Inhibits Neuron Apoptosis and Protects Ischemic Stroke
AbstractNeuronal apoptosis is crucial in the pathophysiology of ischemic stroke (IS), albeit its underly24ing mechanism remaining elusive. Investigating the mechanism of neuronal apoptosis in the context of IS holds substantial clinical value for enhancing the prognosis of IS patients. Notably, the MRPS9 gene plays a pivotal role in regulating mitochondrial function and maintaining structural integrity. Utilizing bioinformatic tactics and the extant gene expression data related to IS, we conducted differential analysis and weighted correlation network analysis (WGCNA) to select important modules. Subsequent gene interactio...
Source: Journal of Molecular Neuroscience - February 21, 2024 Category: Neuroscience Source Type: research

Nervous System Response to Neurotrauma: A Narrative Review of Cerebrovascular and Cellular Changes After Neurotrauma
AbstractNeurotrauma is a significant cause of morbidity and mortality worldwide. For instance, traumatic brain injury (TBI) causes more than 30% of all injury-related deaths in the USA annually. The underlying cause and clinical sequela vary among cases. Patients are liable to both acute and chronic changes in the nervous system after such a type of injury. Cerebrovascular disruption has the most common and serious effect in such cases because cerebrovascular autoregulation, which is one of the main determinants of cerebral perfusion pressure, can be effaced in brain injuries even in the absence of evident vascular injury....
Source: Journal of Molecular Neuroscience - February 17, 2024 Category: Neuroscience Source Type: research