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Total 636 results found since Jan 2013.

bFGF promotes neurological recovery from neonatal hypoxic –ischemic encephalopathy by IL‐1β signaling pathway‐mediated axon regeneration
ConclusionsWe showed that IL ‐1β‐mediated axon regeneration underlie the mechanism of bFGF for the treatment of HIBD in neonatal rats. Results from this study would provide insights and molecular basis for future therapeutics in treating HIBD.
Source: Brain and Behavior - June 10, 2020 Category: Neurology Authors: Zheng Ma, Fang Wang, Lu ‐Lu Xue, Ying‐Jie Niu, Yue Hu, Zhang‐Yu Su, Jin Huang, Rui‐Ze Niu, Ting‐Hua Wang, Ying‐Chun Ba, Liu‐Lin Xiong, Xue Bai Tags: ORIGINAL RESEARCH Source Type: research

Association of increase in Serping1 level with dopaminergic cell reduction in an MPTP-induced Parkinson's disease mouse model.
Abstract Parkinson's disease (PD) is a progressive neurodegenerative disease, which shows distinct manifestations such as significant loss of dopaminergic neurons in the substantia nigra (SN). Gene expression was analyzed in the SN of mice treated with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), wherein downregulation of dopaminergic neurons occurred to examine the possible causes leading to the loss of dopaminergic neurons. In addition, a serine/cysteine protease inhibitor (Serping1) was studied as one of the genes that were prominently upregulated in mice chronically intoxicated with MPTP. Western blot ...
Source: Brain Research Bulletin - May 29, 2020 Category: Neurology Authors: Seo MH, Yeo S Tags: Brain Res Bull Source Type: research

Oligodendrocyte ARNT2 expression is altered in models of MS
Conclusion The analysis of ARNT2 expression in OLs demonstrates that OL ARNT2 expression is altered in EAE and during OL maturation. Findings point to ARNT2 as an important mediator of OL viability and differentiation and warrant further characterization as a target for intervention in demyelinating disorders such as MS.
Source: Neurology Neuroimmunology and Neuroinflammation - May 20, 2020 Category: Neurology Authors: Becquart, P., Johnston, J., Vilarino-Güell, C., Quandt, J. A. Tags: All Immunology, Autoimmune diseases, Multiple sclerosis Article Source Type: research

lncRNA Mtss1 promotes inflammatory responses and secondary brain injury after intracerebral hemorrhage by targeting miR-709 in mice.
Abstract Secondary brain injuries following intracerebral hemorrhage (ICH) are mediated by inflammatory pathway activation. The present study aimed to characterize long noncoding RNAs (lncRNAs) that are differentially expressed in cerebral tissues during ICH pathogenesis and to investigate their pathogenic functions. An ICH mouse model established by collagenase injection was used to obtain differentially expressed lncRNAs for deep sequencing. A cellular inflammation model was established by treating mouse microglia with lipopolysaccharide. Expression of lncRNA and miRNA was assessed by quantitative RT-PCR, and pr...
Source: Brain Research Bulletin - May 18, 2020 Category: Neurology Authors: Chen JX, Wang YP, Zhang X, Li GX, Zheng K, Duan CZ Tags: Brain Res Bull Source Type: research

Bone marrow mesenchymal stem cells upregulate PI3K/AKT pathway and down-regulate NF- κB pathway by secreting glial cell-derived neurotrophic factors to regulate microglial polarization and alleviate deafferentation pain in rats.
In this study, we investigated whether DP could be alleviated by BMSCs and the underlying mechanism. In vitro study, microglia was stimulated by lipopolysaccharide and then co-cultured with BMSC, GDNF or siRNA GDNF-BMSC. In vivo study, BMSC or siRNA GDNF-BMSC was transplanted intramedullarily on the 21st day after DP surgery. The expression of inflammatory-related factors were detected by RT-PCR and ELISA, RT-PCR,flow cytometry and immunofluorescence staining were performed to detect the expression of microglial surface markers, and Western blot was used to detect the expression levels of p-NF-kb, pPI3K, and pAKT. The pain...
Source: Neurobiology of Disease - May 15, 2020 Category: Neurology Authors: Zhong Z, Chen A, Fa Z, Ding Z, Xiao L, Wu G, Wang Q, Zhang R Tags: Neurobiol Dis Source Type: research

Delayed recanalization after MCAO ameliorates ischemic stroke by inhibiting apoptosis via HGF/c-met/STAT3/Bcl-2 pathway in rats.
In conclusion, the delayed recanalization after MCAO increased the expression of HGF in the brain, and reduced the infarction and neuronal apoptosis after MCAO, partly via the activation of the HGF/c-Met/STAT3/Bcl-2 signaling pathway. The delayed recanalization may serve as a therapeutic alternative for a subset of ischemic stroke patients. PMID: 32428505 [PubMed - as supplied by publisher]
Source: Experimental Neurology - May 15, 2020 Category: Neurology Authors: Tang H, Gamdzyk M, Huang L, Gao L, Lenahan C, Kang R, Tang J, Xia Y, Zhang JH Tags: Exp Neurol Source Type: research

Corilagin ameliorates sleep deprivation-induced memory impairments by inhibiting NOX2 and activating Nrf2.
Abstract Sleep deprivation (SD) can induce cognitive and memory impairments. This impairment is in part due to oxidative stress damage in the hippocampus region of the brain. Corilagin (CL), a polyphenol belonging to the tannin family and extracted from Terminalia chebula and Phyllanthus emblica, shows strong antioxidant and neuroprotective effects. NF-E2-related factor (Nrf2)/heme oxygenase-1 (HO-1) and NADPH oxidase (NOX) are critical targets involved in cellular defense mechanisms against oxidative injury. Thus, we hypothesized that CL could be a preventive treatment for SD-induced memory impairments by inhibit...
Source: Brain Research Bulletin - May 6, 2020 Category: Neurology Authors: Wang W, Yang L, Liu T, Ma Y, Huang S, He M, Wang J, Wen A, Ding Y Tags: Brain Res Bull Source Type: research

PARP-1-regulated TNF- α expression in the dorsal root ganglia and spinal dorsal horn contributes to the pathogenesis of neuropathic pain in rats.
PARP-1-regulated TNF-α expression in the dorsal root ganglia and spinal dorsal horn contributes to the pathogenesis of neuropathic pain in rats. Brain Behav Immun. 2020 Apr 10;: Authors: Gao Y, Bai L, Zhou W, Yang Y, Zhang J, Li L, Jiang M, Mi Y, Li TT, Zhang X, Zhang W, Xu JT Abstract Emerging evidence has implicated poly-(ADP-ribose) polymerase 1 (PARP-1), a transcriptional coregulator, in a variety of inflammatory diseases. In the current study, the role of PARP-1 in neuropathic pain and the underlying mechanisms were investigated. Neuropathic pain was determined by assessing the paw withdrawal th...
Source: Brain, Behavior, and Immunity - April 9, 2020 Category: Neurology Authors: Gao Y, Bai L, Zhou W, Yang Y, Zhang J, Li L, Jiang M, Mi Y, Li TT, Zhang X, Zhang W, Xu JT Tags: Brain Behav Immun Source Type: research

The inhibiting role of periaqueductal gray metabotropic glutamate receptor subtype 8 in a rat model of central neuropathic pain.
In this study, we tried to assess the modulatory effect of (S)-3,4-Dicarboxyphenylglycine (DCPG), a metabotropic glutamate receptor subtype 8 (mGluR8) agonist, in a model of chronic central neuropathic pain in male rats. We used a spinal cord contusion method (T6-T8) for the induction of chronic central neuropathic pain.Male Wistar rats were randomly assigned to 5 equal groups (n = 10 per group). Clips compression injury model was used to induce chronic central neuropathic pain. Three weeks after spinal cord injury DCPG, siRNA and normal saline were administered intra-ventrolaterally to the periaqueductal gray (PAG) regi...
Source: Neurological Research - April 6, 2020 Category: Neurology Tags: Neurol Res Source Type: research

cGAS/STING Pathway Activation Contributes to Delayed Neurodegeneration in Neonatal Hypoxia-Ischemia Rat Model: Possible Involvement of LINE-1
AbstractcGAS is a sensor of cytosolic DNA and responds equally to exogenous and endogenous DNA. After recognition of cytosolic dsDNA or ssDNA, cGAS synthesizes the second messenger 2 ′3′-cGAMP, which then binds to and activates stimulator of interferon genes (STING). STING plays an essential role in responding to pathogenic DNA and self-DNA in the context of autoimmunity. In pathologic conditions, such as stroke or hypoxia-ischemia (HI), DNA can gain access into the cytoplas m of the cell and leak from the dying cells into the extracellular environment, which potentially activates cGAS/STING. Recent in vivo studies of ...
Source: Molecular Neurobiology - April 5, 2020 Category: Neurology Source Type: research

B4GALT3 promotes cell proliferation and invasion in glioblastoma.
Conclusion: B4GALT3 might be a potential molecular therapeutic target of glioblastoma. PMID: 32202233 [PubMed - as supplied by publisher]
Source: Neurological Research - March 24, 2020 Category: Neurology Tags: Neurol Res Source Type: research

TIMP-1: a key cytokine released from activated astrocytes protects neurons and ameliorates cognitive behaviours in a rodent model of Alzheimer's disease.
Abstract Alzheimer's disease (AD) is characterized by two pathologic species, extracellular amyloid-β (Aβ) plaques and intracellular neurofibrillary tangles. Astrocytes that maintain normal homeostasis in the brain undergo a set of molecular, cellular and functional changes called reactive astrogliosis in various neurological diseases including AD. It is hypothesized that reactive astrocytes initially tend to protect neurons by reducing Aβ load and by secreting a plethora of cytokines, however, their functions have only been poorly investigated. Our studies on the kinetics of activation of cortical astrocytes f...
Source: Brain, Behavior, and Immunity - March 15, 2020 Category: Neurology Authors: Saha P, Sarkar S, Ramesh Kumar P, Biswas SC Tags: Brain Behav Immun Source Type: research

Electroacupuncture Pretreatment Prevents Ischemic Stroke and Inhibits Wnt Signaling-Mediated Autophagy Through the Regulation of GSK-3 β Phosphorylation.
In this study, rats were treated with EA prior to focal ischemia by middle cerebral artery occlusion (MCAO). Deficit score, infarct volumes and levels of autophagy markers, such as LC3I, LC3II and p62, were assessed with either PI3K inhibitor wortmannin or a GSK-3β inhibitor LiCl. Oxygen-glucose deprivation/re-oxygenation (OGD/R) was made in the primitive neuron in vitro, and was respectively treated with autophagy inhibitors 3-MA, LiCl, GSK3β siRNA, or mTOR inhibitor rapamycin. The results indicated that EA pretreatment increased the levels of autophagy marker LC3-II and reduced the levels of p62. Meanwhile, deficit out...
Source: Brain Research Bulletin - March 2, 2020 Category: Neurology Authors: Chen C, Yu Q, Xu K, Cai L, Felicia BM, Wang L, Zhang A, Dai Q, Geng W, Wang J, Mo Y Tags: Brain Res Bull Source Type: research

Modulation of NR1 receptor by CaMKII α plays an important role in chronic itch development in mice.
Modulation of NR1 receptor by CaMKIIα plays an important role in chronic itch development in mice. Brain Res Bull. 2020 Feb 26;: Authors: Li NQ, Tang Y, Huang ST, Liu XT, Zeng LP, Li H, Wan L Abstract Intractable scratching is the characteristic of chronic itch, which represents a great challenge in clinical practice. However, the mechanism underlying chronic itch development is largely unknown. In the present study, we investigated the role of NMDA receptor in acute itch and in development of chronic itch. A mouse model was developed by painting DNFB to induce allergic contact dermatitis (ACD). We f...
Source: Brain Research Bulletin - February 25, 2020 Category: Neurology Authors: Li NQ, Tang Y, Huang ST, Liu XT, Zeng LP, Li H, Wan L Tags: Brain Res Bull Source Type: research

MicroRNA-193b-3p alleviates focal cerebral ischemia and reperfusion-induced injury in rats by inhibiting 5-lipoxygenase expression.
CONCLUSION: MiR-193b-3p has a potentially neuroprotective effect on focal cerebral I/R-induced injury by inhibiting 5-LOX expression. PMID: 32032565 [PubMed - as supplied by publisher]
Source: Experimental Neurology - February 3, 2020 Category: Neurology Authors: Chen Z, Yang J, Zhong J, Luo Y, Du W, Hu C, Xia H, Li Y, Zhang J, Li M, Yang Y, Huang H, Peng Z, Tan X, Wang H Tags: Exp Neurol Source Type: research