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Neuroinflammation

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https://www.readbyqxmd.com/read/29679161/present-and-future-of-ultra-high-field-mri-in-neurodegenerative-disorders
#1
REVIEW
Graziella Donatelli, Roberto Ceravolo, Daniela Frosini, Michela Tosetti, Ubaldo Bonuccelli, Mirco Cosottini
PURPOSE OF REVIEW: With a high signal-to-noise ratio, unparalleled spatial resolution, and improved contrasts, ultra-high field MR (≥ 7 T) has great potential in depicting the normal radiological anatomy of smaller structures in the brain and can also provide more information about morphological, quantitative, and metabolic changes associated with a wide range of brain disorders. By focusing attention on specific brain regions believed to be associated with early pathological change, or by more closely inspecting recognized foci of brain pathology, ultra-high field MR can improve the accuracy and sensitivity of neuroimaging...
April 20, 2018: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29678666/biochemical-deficits-and-cognitive-decline-in-brain-aging-intervention-by-dietary-supplements
#2
REVIEW
Jit Poddar, Munmun Pradhan, Gargi Ganguly, Sasanka Chakrabarti
The aging of brain in the absence of neurodegenerative diseases, usually called non-pathological brain aging or normal cognitive aging, is characterized by an impairment of memory and cognitive functions. The underlying cellular and molecular changes in the aging brain that include oxidative damage, mitochondrial impairment, changes in glucose-energy metabolism and neuroinflammation have been reported widely from animal experiments and human studies. The cognitive deficit of non-pathological brain aging is the resultant of such inter-dependent and reinforcing molecular pathologies which have striking similarities with those operating in Alzheimer's disease which causes progressive, irreversible and a devastating form of dementia and cognitive decline in the elderly people...
April 17, 2018: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/29678518/pattern-recognition-receptors-mediate-pro-inflammatory-effects-of-extracellular-mitochondrial-transcription-factor-a-tfam
#3
Stephanie M Schindler, Matthew G Frank, Jessica L Annis, Steven F Maier, Andis Klegeris
Neuroinflammation is a common pathogenic mechanism for a number of neurodegenerative disorders including Alzheimer's and Parkinson's diseases. Microglia, the immune cells of the brain, contribute to the onset and progression of the neuroinflammation observed in these diseases. Microglia become activated and initiate an inflammatory response by interacting with a diverse set of molecules, including the group of endogenous proteins released upon cell damage, termed damage-associated molecular patterns (DAMPs)...
April 17, 2018: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29678105/3-substituted-1-5-diaryl-1h-1-2-4-triazoles-as-prospective-pet-radioligands-for-imaging-brain-cox-1-in-monkey-part-1-synthesis-and-pharmacology
#4
Prachi Singh, Stal Shrestra, Michelle Y Cortes-Salva, Kimberly J Jenko, Sami S Zoghbi, Cheryl L Morse, Robert B Innis, Victor W Pike
Cyclooxygenase-1 (COX-1) is a key enzyme in the biosynthesis of proinflammatory thromboxanes and prostaglandins and is found in glial and neuronal cells within brain. COX-1 expression is implicated in numerous neuroinflammatory states. We aim to find a direct-acting PET radioligand for imaging COX-1 in human brain as a potential biomarker of neuroinflammation and for serving as a tool in drug development. Seventeen 3-substituted 1,5-diaryl-1 H -1,2,4-triazoles were prepared as prospective COX-1 PET radioligands...
April 20, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29676481/high-mobility-group-box-1-in-parkinson-s-disease-from-pathogenesis-to-therapeutic-approaches
#5
REVIEW
Efthalia Angelopoulou, Christina Piperi, Athanasios G Papavassiliou
Parkinson's disease (PD) presents the second most common neurodegenerative disorder with largely unknown pathogenesis and inefficient therapeutic management. Accumulating data indicate that neuroinflammation, autophagy impairment, α-synuclein aggregation and mitochondrial dysfunction may contribute to PD onset; however the molecular mechanisms underlying these pathophysiological processes are still under elucidation. Interestingly, recent evidence has indicated that High-mobility group box 1 (HMGB1), a DNA-binding protein that can be actively secreted by inflammatory cells and passively released by necrotic cells may play a key role in PD pathogenesis...
April 20, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29676231/combating-neurodegenerative-diseases-with-the-plant-alkaloid-berberine-molecular-mechanisms-and-therapeutic-potential
#6
Dahua Fan, Liping Liu, Zhengzhi Wu, Meiqun Cao
Neurodegenerative diseases are among the most serious health problems affecting millions of people worldwide. Such diseases are characterized by a progressive degeneration and / or death of neurons in the central nervous system. Currently, there are no therapeutic approaches to cure or even halt the progression of neurodegenerative diseases. During the last two decades, much attention has been paid to the neuroprotective and anti-neurodegenerative activities of compounds isolated from natural products with high efficacy and low toxicity...
April 19, 2018: Current Neuropharmacology
https://www.readbyqxmd.com/read/29675728/histone-deacetylase-2-inhibitor-cay10683-alleviates-lipopolysaccharide-induced-neuroinflammation-through-attenuating-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway
#7
Fang-Zhou Jiao, Yao Wang, Hai-Yue Zhang, Wen-Bin Zhang, Lu-Wen Wang, Zuo-Jiong Gong
Neuroinflammation involves in the progression of many central nervous system diseases. Several studies have shown that histone deacetylase (HDAC) inhibitors modulated inflammatory responses in lipopolysaccharide (LPS) stimulated microglia. While, the mechanism is still unclear. The aim of present study was to investigate the effect of HDAC2 inhibitor CAY10683 on inflammatory responses and TLR4/NF-κB signaling pathways in LPS activated BV2 microglial cells and LPS induced mice neuroinflammation. The effect of CAY10683 on cell viability of BV2 microglial cells was detected by CCK-8 assay...
April 19, 2018: Neurochemical Research
https://www.readbyqxmd.com/read/29675576/gintonin-mitigates-mptp-induced-loss-of-nigrostriatal-dopaminergic-neurons-and-accumulation-of-%C3%AE-synuclein-via-the-nrf2-ho-1-pathway
#8
Min Gi Jo, Muhammad Ikram, Myeung Hoon Jo, Lang Yoo, Kwang Chul Chung, Seung-Yeol Nah, Hongik Hwang, Hyewhon Rhim, Myeong Ok Kim
Gintonin, a ginseng-derived glycolipoprotein isolated from ginseng, has been shown to be neuroprotective in several neurological disorders such as Alzheimer's disease models and depressive-like behaviors. In this study, we sought to investigate the potential protective mechanisms of gintonin in an in vivo MPTP and in vitro MPP+ -mediated Parkinson's disease (PD) model. We hypothesized that activation of nuclear factor erythroid 2-related factor 2/heme oxygenase-1 (Nrf2/HO-1, potential therapeutic targets for neurodegeneration) with gintonin could abrogate PD-associated neurotoxicity by modulating the accumulation of α-synuclein, neuroinflammation, and apoptotic cell death in an MPTP/MPP+ models of PD...
April 19, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29674348/rkip-mediates-autoimmune-inflammation-by-positively-regulating-il-17r-signaling
#9
Wenlong Lin, Ning Wang, Kangxing Zhou, Fasheng Su, Yu Jiang, Jianan Shou, Huan Liu, Chunmei Ma, Youchun Qian, Kai Wang, Xiaojian Wang
Th17 cells contribute to the development of autoimmune diseases by secreting interleukin-17 (IL-17), which activates its receptor (IL-17R) that is expressed on epithelial cells, macrophages, microglia, and resident neuroectodermal cells. However, the mechanisms through which IL-17R-mediated signaling contributes to the development of autoimmune disease have not been completely elucidated. Here, we demonstrate that Raf-1 kinase inhibitor protein (RKIP) deficiency in mice ameliorates the symptoms of experimental autoimmune encephalomyelitis (EAE)...
April 19, 2018: EMBO Reports
https://www.readbyqxmd.com/read/29673913/epothilone-d-inhibits-microglia-mediated-spread-of-alpha-synuclein-aggregates
#10
Dario Valdinocci, Gary Grant, Tracey Dickson, Dean L Pountney
Multiple System Atrophy (MSA) is a progressive neurodegenerative disease characterized by chronic neuroinflammation and widespread α-synuclein (α-syn) cytoplasmic inclusions. Neuroinflammation associated with microglial cells is typically located in brain regions with α-syn deposits. The potential link between microglial cell migration and the transport of pathological α-syn protein in MSA was investigated. Qualitative analysis via immunofluorescence of MSA cases (n = 4) revealed microglial cells bearing α-syn inclusions distal from oligodendrocytes bearing α-syn cytoplasmic inclusions, as well as close interactions between microglia and oligodendrocytes bearing α-syn, suggestive of a potential transfer mechanism between microglia and α-syn bearing cells in MSA and the possibility of microglia acting as a mobile vehicle to spread α-syn between anatomically connected brain regions...
April 16, 2018: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29673549/tau-and-neuroinflammation-what-impact-for-alzheimer-s-disease-and-tauopathies
#11
REVIEW
Cyril Laurent, Luc Buée, David Blum
Alzheimer's Disease (AD) is a chronic neurodegenerative disorder and the most common type of dementia (60-80% of cases). In 2016, nearly 44 million people were affected by AD or related dementia. AD is characterized by progressive neuronal damages leading to subtle and latter obvious decline in cognitive functions including symptoms such as memory loss or confusion, which ultimately require full-time medical care. Its neuropathology is defined by the extracellular accumulation of amyloid-β (Aβ) peptide into amyloid plaques, and intraneuronal neurofibrillary tangles (NFT) consisting of aggregated hyper- and abnormal phosphorylation of tau protein...
February 2018: Biomedical Journal
https://www.readbyqxmd.com/read/29673373/chorioamnionitis-neuroinflammation-and-injury-timing-is-key-in-the-preterm-ovine-fetus
#12
Ruth Gussenhoven, Rob J J Westerlaken, Daan R M G Ophelders, Alan H Jobe, Matthew W Kemp, Suhas G Kallapur, Luc J Zimmermann, Per T Sangild, Stanislava Pankratova, Pierre Gressens, Boris W Kramer, Bobbi Fleiss, Tim G A M Wolfs
BACKGROUND: Antenatal infection (i.e., chorioamnionitis) is an important risk factor for adverse neurodevelopmental outcomes after preterm birth. Destructive and developmental disturbances of the white matter are hallmarks of preterm brain injury. Understanding the temporal effects of antenatal infection in relation to the onset of neurological injury is crucial for the development of neurotherapeutics for preterm infants. However, these dynamics remain unstudied. METHODS: Time-mated ewes were intra-amniotically injected with lipopolysaccharide at 5, 12, or 24 h or 2, 4, 8, or 15 days before preterm delivery at 125 days gestational age (term ~ 150 days)...
April 19, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29672844/longitudinal-positron-emission-tomography-imaging-of-glial-cell-activation-in-a-mouse-model-of-mesial-temporal-lobe-epilepsy-toward-identification-of-optimal-treatment-windows
#13
Duc-Loc Nguyen, Catriona Wimberley, Charles Truillet, Benoit Jego, Fabien Caillé, Géraldine Pottier, Raphaël Boisgard, Irène Buvat, Viviane Bouilleret
OBJECTIVE: Mesiotemporal lobe epilepsy is the most common type of drug-resistant partial epilepsy, with a specific history that often begins with status epilepticus due to various neurological insults followed by a silent period. During this period, before the first seizure occurs, a specific lesion develops, described as unilateral hippocampal sclerosis (HS). It is still challenging to determine which drugs, administered at which time point, will be most effective during the formation of this epileptic process...
April 19, 2018: Epilepsia
https://www.readbyqxmd.com/read/29672456/questions-and-perspectives-on-involvement-of-s1pr1-in-cancer-induced-bone-pain-and-neuroinflammation
#14
Jin-Lu Huang, Yao Fu, Cheng Guo
No abstract text is available yet for this article.
May 2018: Pain
https://www.readbyqxmd.com/read/29671417/cyanidin-attenuates-a%C3%AE-25-35-induced-neuroinflammation-by-suppressing-nf-%C3%AE%C2%BAb-activity-downstream-of-tlr4-nox4-in-human-neuroblastoma-cells
#15
Sarinthorn Thummayot, Chainarong Tocharus, Pichaya Jumnongprakhon, Apichart Suksamrarn, Jiraporn Tocharus
Cyanidin is polyphenolic pigment found in plants. We have previously demonstrated that cyanidin protects nerve cells against Aβ25-35 -induced toxicity by decreasing oxidative stress and attenuating apoptosis mediated by both the mitochondrial apoptotic pathway and the ER stress pathway. To further elucidate the molecular mechanisms underlying the neuroprotective effects of cyanidin, we investigated the effects of cyanidin on neuroinflammation mediated by the TLR4/NOX4 pathway in Aβ25-35 -treated human neuroblastoma cell line (SK-N-SH)...
April 19, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29671236/picroside-ii-attenuates-cci-induced-neuropathic-pain-in-rats-by-inhibiting-spinal-reactive-astrocyte-mediated-neuroinflammation-through-the-nf-%C3%AE%C2%BAb-pathway
#16
Xiaolian Nong, Yuyan Lan
Reactive astrocyte-mediated neuroinflammatory responses in the spinal dorsal horn have been reported to play a pivotal role in pathological pain. Chronic constriction injury (CCI) enhances the activation of nuclear factor kappa B (NF-κB), which is involved in neuropathic pain (NP). Picroside II (PII), a major active component of Picrorhiza scrophulariiflora, has been investigated for its anti-oxidative, anti-inflammatory, and anti-apoptotic activities. Here, we explored the analgesic effects of PII on a model of CCI-induced NP and investigated the levels of the GFAP protein and the mRNA and protein levels of pro-inflammatory cytokines in the spinal cord, including interleukin-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α)...
April 18, 2018: Neurochemical Research
https://www.readbyqxmd.com/read/29670873/severe-urban-outdoor-air-pollution-and-children-s-structural-and-functional-brain-development-from-evidence-to-precautionary-strategic-action
#17
Amedeo D'Angiulli
According to the latest estimates, about 2 billion children around the world are exposed to severe urban outdoor air pollution. Transdisciplinary, multi-method findings from epidemiology, developmental neuroscience, psychology, and pediatrics, show detrimental outcomes associated with pre- and postnatal exposure are found at all ages. Affected brain-related functions include perceptual and sensory information processing, intellectual and cognitive development, memory and executive functions, emotion and self-regulation, and academic achievement...
2018: Frontiers in Public Health
https://www.readbyqxmd.com/read/29670611/advances-in-biomarker-guided-therapy-for-pediatric-and-adult-onset-neuroinflammatory-disorders-targeting-chemokines-cytokines
#18
REVIEW
Michael R Pranzatelli
The concept and recognized components of "neuroinflammation" are expanding at the intersection of neurobiology and immunobiology. Chemokines (CKs), no longer merely necessary for immune cell trafficking and positioning, have multiple physiologic, developmental, and modulatory functionalities in the central nervous system (CNS) through neuron-glia interactions and other mechanisms affecting neurotransmission. They issue the "help me" cry of neurons and astrocytes in response to CNS injury, engaging invading lymphoid cells (T cells and B cells) and myeloid cells (dendritic cells, monocytes, and neutrophils) (adaptive immunity), as well as microglia and macrophages (innate immunity), in a cascade of events, some beneficial (reparative), others destructive (excitotoxic)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29670526/taraxasterol-inhibits-lps-induced-inflammatory-response-in-bv2-microglia-cells-by-activating-lxr%C3%AE
#19
Bin Liu, Zhaoqi He, Jingjing Wang, Zhuoyuan Xin, Jiaxin Wang, Fan Li, Yunhe Fu
Neuroinflammation plays a critical role in the development of neurodegenerative diseases. Taraxasterol, a pentacyclic-triterpene isolated from Taraxacum officinale , has been reported to have anti-inflammatory effect. The aim of this study was to investigate the anti-inflammatory effects and mechanism of taraxasterol in LPS-stimulated BV2 microglia cells. BV2 microglia cells were treated with taraxasterol 12 h before LPS stimulation. The effects of taraxasterol on LPS-induced TNF-α and IL-1β production were detected by ELISA...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29670465/emerging-roles-of-immune-cells-in-postoperative-cognitive-dysfunction
#20
REVIEW
Yue Liu, Yiqing Yin
Postoperative cognitive dysfunction (POCD), a long-lasting cognitive decline after surgery, is currently a major clinical problem with no clear pathophysiological mechanism or effective therapy. Accumulating evidence suggests that neuroinflammation plays a critical role in POCD. After surgery, alarmins are leaked from the injury sites and proinflammatory cytokines are increased in the peripheral circulation. Neurons in the hippocampus, which is responsible for learning and memory, can be damaged by cytokines transmitted to the brain parenchyma...
2018: Mediators of Inflammation
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