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Neural inflammation

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https://www.readbyqxmd.com/read/28747602/inflammation-amplifier-and-gateway-reflex-the-regulation-of-inflammation-by-neuroimmune-interaction
#1
Ikuma Nakagawa, Masaaki Murakami
  Central nervous system (CNS), which is made up of brain and spinal cord, is protected from the invasion of harmful agents, such as various pathogens, chemical products or immune cells by a special structure "Blood Brain Barrier (BBB)". BBB highly preserves the homeostasis of CNS environment. On the other hand, there are many diseases in CNS regions which is associated with infection or autoimmunity, that means there may exist the "gateway" for pathogens or immune cells to attack CNS. Until recently, the molecular mechanism of the gateway formation has not been elucidated...
2017: Nihon Rinshō Men'eki Gakkai Kaishi, Japanese Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28745240/nf-%C3%AE%C2%BAb-a-friend-a-foe-or-a-bystander-in-the-neurodegenerative-cascade-and-pathogenesis-of-alzheimer-s-disease
#2
Othman Ghribi
Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) is a ubiquitous transcription factor that was discovered nearly three decades ago. Since its discovery, this protein complex has been implicated in numerous physiological and pathophysiological processes such as inflammation, insulin resistance, synaptic plasticity and memory as well as pathological conditions including cancer, autoimmune diseases, diabetes, and neurodegenerative diseases such as Alzheimer's disease. This review literature is focused on the potential role NF-κB may play in the etipathogenesis of Alzheimer's disease...
July 25, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28743464/stem-cell-therapy-for-abrogating-stroke-induced-neuroinflammation-and-relevant-secondary-cell-death-mechanisms
#3
REVIEW
Connor Stonesifer, Sydney Corey, Shaila Ghanekar, Zachary Diamandis, Sandra A Acosta, Cesar V Borlongan
Ischemic stroke is a leading cause of death worldwide. A key secondary cell death mechanism mediating neurological damage following the initial episode of ischemic stroke is the upregulation of endogenous neuroinflammatory processes to levels that destroy hypoxic tissue local to the area of insult, induce apoptosis, and initiate a feedback loop of inflammatory cascades that can expand the region of damage. Stem cell therapy has emerged as an experimental treatment for stroke, and accumulating evidence supports the therapeutic efficacy of stem cells to abrogate stroke-induced inflammation...
July 22, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28743043/neurotrophy-and-immunomodulation-of-induced-neural-stem-cell-grafts-in-a-mouse-model-of-closed-head-injury
#4
Mou Gao, Hui Yao, Qin Dong, Yan Zhang, Yang Yang, Yihua Zhang, Zhijun Yang, Minhui Xu, Ruxiang Xu
Closed head injury (CHI) usually results in severe and permanent neurological impairments, which are caused by several intertwined phenomena, such as cerebral edema, blood-brain barrier (BBB) disruption, neuronal loss, astroglial scarring and inflammation. We previously reported that induced neural stem cells (iNSCs), similar to neural stem cells (NSCs), can accelerate neurological recovery in vivo and produce neurotrophic factors in vitro. However, the effects of iNSC neurotrophy following CHI were not determined...
July 18, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28738878/tlr4-response-mediates-ethanol-induced-neurodevelopment-alterations-in-a-model-of-fetal-alcohol-spectrum-disorders
#5
María Pascual, Jorge Montesinos, Sandra Montagud-Romero, Jerónimo Forteza, Marta Rodríguez-Arias, José Miñarro, Consuelo Guerri
BACKGROUND: Inflammation during brain development participates in the pathogenesis of early brain injury and cognitive dysfunctions. Prenatal ethanol exposure affects the developing brain and causes neural impairment, cognitive and behavioral effects, collectively known as fetal alcohol spectrum disorders (FASD). Our previous studies demonstrate that ethanol activates the innate immune response and TLR4 receptor and causes neuroinflammation, brain damage, and cognitive defects in the developmental brain stage of adolescents...
July 24, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28738875/effects-of-fty720-on-brain-neurogenic-niches-in-vitro-and-after-kainic-acid-induced-injury
#6
Raffaela Cipriani, Juan Carlos Chara, Alfredo Rodríguez-Antigüedad, Carlos Matute
BACKGROUND: FTY720 (fingolimod, Gilenya™) is an oral, blood-brain barrier (BBB)-passing drug approved as immunomodulatory treatment for relapsing-remitting form of the multiple sclerosis (MS). In addition, FTY720 exerts several effects in the central nervous system (CNS), ranging from neuroprotection to reduction of neuroinflammation. However, the neurogenic and oligodendrogenic potential of FTY720 has been poorly investigated. In this study, we assessed the effect of FTY720 on the production of new neurons and oligodendrocytes from neural stem/precursor cells both in vitro and in vivo...
July 24, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28738353/inflammation-effects-on-glutamate-as-a-pathway-to-neuroprogression-in-mood-disorders
#7
Ebrahim Haroon, Andrew H Miller
Neuroprogression is a term used to describe worsening psychopathology, poor treatment response, and declining cognitive and functional outcomes among patients with chronic mental disorders. Chronic inflammatory activation and glutamate-mediated excitotoxicity are two key etiological factors implicated in the development of neuroprogression. In this chapter, we hypothesize that the association between chronic inflammatory activation, neuroprogression, and glutamate dysregulation might be mediated by glial dysfunction...
2017: Modern Trends in Pharmacopsychiatry
https://www.readbyqxmd.com/read/28736339/tfos-dews-ii-pain-and-sensation-report
#8
REVIEW
Carlos Belmonte, Jason J Nichols, Stephanie M Cox, James A Brock, Carolyn G Begley, David A Bereiter, Darlene A Dartt, Anat Galor, Pedram Hamrah, Jason J Ivanusic, Deborah S Jacobs, Nancy A McNamara, Mark I Rosenblatt, Fiona Stapleton, James S Wolffsohn
Pain associated to mechanical and chemical irritation of the eye surface is mediated by trigeminal ganglia mechano- and polymodal nociceptor neurons while cold thermoreceptors detect wetness and reflexly maintain basal tear production and blinking rate. These neurons project into two regions of the trigeminal brain stem nuclear complex: ViVc, activated by changes in the moisture of the ocular surface and VcC1, mediating sensory-discriminative aspects of ocular pain and reflex blinking. ViVc ocular neurons project to brain regions that control lacrimation and spontaneous blinking and to the sensory thalamus...
May 4, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28734673/somatostatin-protects-human-retinal-pericytes-from-inflammation-mediated-by-microglia
#9
Aurora Mazzeo, Ana I Arroba, Elena Beltramo, Angela M Valverde, Massimo Porta
Diabetic retinopathy (DR) is usually considered a microvascular disease. However, involvement of the neuroretina in the early stages of DR has recently gained major credit. Inflammatory processes, leading to glial activation and neuronal apoptosis, develop early in the retina of diabetic subjects. Pericytes constitute a link between the vascular and the neural retina, play a central role in blood-retinal barrier maintenance, and may influence neuroinflammation. Somatostatin (SST) is a potent neuroprotective factor, which is down-regulated during early DR...
July 19, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28725174/altered-functional-connectivity-following-an-inflammatory-white-matter-injury-in-the-newborn-rat-a-high-spatial-and-temporal-resolution-intrinsic-optical-imaging-study
#10
Edgar Guevara, Wyston C Pierre, Camille Tessier, Luis Akakpo, Irène Londono, Frédéric Lesage, Gregory A Lodygensky
Very preterm newborns have an increased risk of developing an inflammatory cerebral white matter injury that may lead to severe neuro-cognitive impairment. In this study we performed functional connectivity (fc) analysis using resting-state optical imaging of intrinsic signals (rs-OIS) to assess the impact of inflammation on resting-state networks (RSN) in a pre-clinical model of perinatal inflammatory brain injury. Lipopolysaccharide (LPS) or saline injections were administered in postnatal day (P3) rat pups and optical imaging of intrinsic signals were obtained 3 weeks later...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28724431/biological-embedding-of-childhood-adversity-from-physiological-mechanisms-to-clinical-implications
#11
REVIEW
Anne E Berens, Sarah K G Jensen, Charles A Nelson
BACKGROUND: Adverse psychosocial exposures in early life, namely experiences such as child maltreatment, caregiver stress or depression, and domestic or community violence, have been associated in epidemiological studies with increased lifetime risk of adverse outcomes, including diabetes, heart disease, cancers, and psychiatric illnesses. Additional work has shed light on the potential molecular mechanisms by which early adversity becomes "biologically embedded" in altered physiology across body systems...
July 20, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28722682/activation-of-the-nrf2-are-signaling-pathway-by-probucol-contributes-to-inhibiting-inflammation-and-neuronal-apoptosis-after-spinal-cord-injury
#12
Zipeng Zhou, Chang Liu, Shurui Chen, Haosen Zhao, Kang Zhou, Wei Wang, Yajiang Yuan, Zhuo Li, Yue Guo, Zhaoliang Shen, Xifan Mei
The nuclear erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) signaling pathway plays an essential role in the cellular antioxidant and anti-inflammatory responses. Spinal cord injury (SCI) results in a massive release of inflammatory factors and free radicals, which seriously compromise nerve recovery and axon regeneration. In this study, we examined the efficacy of probucol on anti-inflammatory responses and functional recovery after SCI by activating the Nrf2/ARE signaling pathway. We also investigated the mechanism by which inflammation is inhibited in this process...
July 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28716969/genetic-determinants-of-susceptibility-to-silver-nanoparticle-induced-acute-lung-inflammation-in-mice
#13
David K Scoville, Dianne Botta, Karen Galdanes, Stefanie C Schmuck, Collin C White, Patricia L Stapleton, Theo K Bammler, James W MacDonald, William A Altemeier, Michelle Hernandez, Steven R Kleeberger, Lung-Chi Chen, Terry Gordon, Terrance J Kavanagh
Silver nanoparticles (AgNPs) are employed in a variety of consumer products; however, in vivo rodent studies indicate that AgNPs can cause lung inflammation and toxicity in a strain- and particle type-dependent manner, but mechanisms of susceptibility remain unclear. The aim of this study was to assess the variation in AgNP-induced lung inflammation and toxicity across multiple inbred mouse strains and to use genome-wide association (GWA) mapping to identify potential candidate susceptibility genes. Mice received doses of 0...
July 17, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28716765/sporadic-endolymphatic-sac-tumor-a-very-rare-cause-of-hearing-loss-tinnitus-and-dizziness
#14
Didde Trærup Schnack, Katalin Kiss, Søren Hansen, Hidemi Miyazaki, Birgitte Bech, Per Caye Thomasen
Sporadic endolymphatic sac tumor is a very rare neoplasm. It is low malignant, locally destructive and expansive, but non-metastasizing. The tumor is very rare in the sporadic form, but more often associated with Von Hippel-Lindau disease. A 65-year old man with left sided tinnitus and hearing loss for several months. Audiometry showed an asymmetrical sensory neural hearing loss on the left side up to 60 dB. The speech discrimination score was 46% and stapedial reflexes were absent. Several years earlier, he had suffered from periods of dizziness...
July 17, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28709449/a-novel-alzheimer-s-disease-drug-candidate-targeting-inflammation-and-fatty-acid-metabolism
#15
Daniel Daugherty, Joshua Goldberg, Wolfgang Fischer, Richard Dargusch, Pamela Maher, David Schubert
BACKGROUND: CAD-31 is an Alzheimer's disease (AD) drug candidate that was selected on the basis of its ability to stimulate the replication of human embryonic stem cell-derived neural precursor cells as well as in APPswe/PS1ΔE9 AD mice. To move CAD-31 toward the clinic, experiments were undertaken to determine its neuroprotective and pharmacological properties, as well as to assay its therapeutic efficacy in a rigorous mouse model of AD. RESULTS: CAD-31 has potent neuroprotective properties in six distinct nerve cell assays that mimic toxicities observed in the old brain...
July 14, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28696292/acute-inflammation-regulates-neuroregeneration-through-the-nf-%C3%AE%C2%BAb-pathway-in-olfactory-epithelium
#16
Mengfei Chen, Randall R Reed, Andrew P Lane
Adult neural stem cells/progenitor cells residing in the basal layer of the olfactory epithelium are capable of reconstituting the neuroepithelium even after severe damage. The molecular events underlying this regenerative capacity remain elusive. Here we show that the repair of neuroepithelium after lesioning is accompanied by an acute, but self-limited, inflammatory process. Attenuation of inflammatory cell recruitment and cytokine production by dexamethasone impairs proliferation of progenitor horizontal basal cells (HBCs) and subsequent neuronal differentiation...
July 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28690033/schisantherin-a-attenuates-ischemia-reperfusion-induced-neuronal-injury-in-rats-via-regulation-of-tlr4-and-c5ar1-signaling-pathways
#17
Yun Wei Shi, Xiao Chuan Zhang, Chen Chen, Miao Tang, Zhi Wei Wang, Xin Miao Liang, Fei Ding, Cai Ping Wang
Toll-like receptor 4 (TLR4) and C5aR1 (CD88) have been recognized as potential therapeutic targets for the reduction of inflammation and secondary damage and improvement of outcome after ischemia and reperfusion (I/R). The inflammatory responses which induce cell apoptosis and necrosis after I/R brain injury lead to a limited process of neural repair. To further comprehend how these targets function in I/R state, we investigated the pathological changes and TLR4 and C5aR1 signaling pathways in vitro and in vivo models of I/R brain injury in this study...
July 6, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28687730/fluvoxamine-stimulates-oligodendrogenesis-of-cultured-neural-stem-cells-and-attenuates-inflammation-and-demyelination-in-an-animal-model-of-multiple-sclerosis
#18
Majid Ghareghani, Kazem Zibara, Heibatollah Sadeghi, Shima Dokoohaki, Hossein Sadeghi, Roya Aryanpour, Amir Ghanbari
Multiple Sclerosis (MS) require medications controlling severity of the pathology and depression, affecting more than half of the patients. In this study, the effect of antidepressant drug fluvoxamine, a selective serotonin reuptake inhibitor, was investigated in vitro and in vivo. Nanomolar concentrations of fluvoxamine significantly increased cell viability and proliferation of neural stem cells (NSCs) through increasing mRNA expression of Notch1, Hes1 and Ki-67, and protein levels of NICD. Also, physiological concentrations of fluvoxamine were optimal for NSC differentiation toward oligodendrocytes, astrocytes and neurons...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28679069/inflammation-self-regulation-and-health-an-immunologic-model-of-self-regulatory-failure
#19
Grant S Shields, Wesley G Moons, George M Slavich
Self-regulation is a fundamental human process that refers to multiple complex methods by which individuals pursue goals in the face of distractions. Whereas superior self-regulation predicts better academic achievement, relationship quality, financial and career success, and lifespan health, poor self-regulation increases a person's risk for negative outcomes in each of these domains and can ultimately presage early mortality. Given its centrality to understanding the human condition, a large body of research has examined cognitive, emotional, and behavioral aspects of self-regulation...
July 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28674485/the-pathophysiological-role-of-microglia-in-dynamic-surveillance-phagocytosis-and-structural-remodeling-of-the-developing-cns
#20
REVIEW
Cataldo Arcuri, Carmen Mecca, Roberta Bianchi, Ileana Giambanco, Rosario Donato
In vertebrates, during an early wave of hematopoiesis in the yolk sac between embryonic day E7.0 and E9.0, cells of mesodermal leaflet addressed to macrophage lineage enter in developing central nervous system (CNS) and originate the developing native microglial cells. Depending on the species, microglial cells represent 5-20% of glial cells resident in adult brain. Here, we briefly discuss some canonical functions of the microglia, i.e., cytokine secretion and functional transition from M1 to M2 phenotype...
2017: Frontiers in Molecular Neuroscience
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