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Neuroinflammation

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https://www.readbyqxmd.com/read/28339164/are-schizophrenia-autistic-and-obsessive-spectrum-disorders-dissociable-on-the-basis-of-neuroimaging-morphological-findings-a-voxel-based-meta-analysis
#1
Franco Cauda, Tommaso Costa, Andrea Nani, Luciano Fava, Sara Palermo, Francesca Bianco, Sergio Duca, Karina Tatu, Roberto Keller
Schizophrenia spectrum disorder (SCZD), autism spectrum disorder (ASD), and obsessive-compulsive spectrum disorder (OCSD) are considered as three separate psychiatric conditions with, supposedly, different brain alterations patterns. From a neuroimaging perspective, this meta-analytic study aimed to address whether this nosographical differentiation is actually supported by different brain patterns of gray matter (GM) or white matter (WM) morphological alterations. We explored two possibilities: (a) to find out whether GM alterations are specific for SCZD, ASD, and OCSD; and (b) to associate the identified brain alteration patterns with cognitive dysfunctions by means of an analysis of lesion decoding...
March 24, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28338530/pharmacologic-characterizations-of-a-p2x7-receptor-specific-radioligand-11c-gsk1482160-for-neuroinflammatory-response
#2
Junbin Han, Hui Liu, Chunling Liu, Hongjun Jin, Joel S Perlmutter, Terrance M Egan, Zhude Tu
OBJECTIVE: The P2X7 receptor (P2X7R) is a key regulatory element in the neuroinflammatory cascade that provides a promising target for imaging neuroinflammation. GSK1482160, a P2X7R modulator with nanomolar binding affinity and high selectivity, has been successfully radiolabeled and utilized for imaging P2X7 levels in a mouse model of lipopolysaccharide-induced systemic inflammation. In the current study, we further characterized its binding profile and determined whether [C]GSK1482160 can detect changes in P2X7R expression in a rodent model of multiple sclerosis...
March 23, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28337696/cerebral-dopamine-neurotrophic-factor-a-potential-therapeutic-agent-for-parkinson-s-disease
#3
REVIEW
Tingting Tang, Yong Li, Qian Jiao, Xixun Du, Hong Jiang
The application of neurotrophic factors (NTFs) is a promising therapeutic strategy for neurodegenerative disorders such as Parkinson's disease (PD). Many NTFs have been reported to enhance the survival, regeneration, and differentiation of neurons and to induce synaptic plasticity. However, because of their potential side-effects and low efficacy after clinical administration, more potent treatments for neurodegenerative disorders are being sought. Cerebral dopamine neurotrophic factor (CDNF), a newly-identified NTF homologous to mesencephalic astrocyte-derived NTF, is structurally and functionally different from other NTFs, providing new hope especially for PD patients...
March 23, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28337127/nlrp3-inflammasome-in-neurological-diseases-from-functions-to-therapies
#4
REVIEW
Limin Song, Lei Pei, Shanglong Yao, Yan Wu, You Shang
Neuroinflammation has been identified as a causative factor of multiple neurological diseases. The nucleotide-binding oligomerization domain-, leucine-rich repeat- and pyrin domain-containing 3 (NLRP3) inflammasome, a subcellular multiprotein complex that is abundantly expressed in the central nervous system (CNS), can sense and be activated by a wide range of exogenous and endogenous stimuli such as microbes, aggregated and misfolded proteins, and adenosine triphosphate, which results in activation of caspase-1...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28337124/interleukin-4-protects-dopaminergic-neurons-in-vitro-but-is-dispensable-for-mptp-induced-neurodegeneration-in-vivo
#5
Laura Hühner, Jennifer Rilka, Ralf Gilsbach, Xiaolai Zhou, Venissa Machado, Björn Spittau
Microglia are involved in physiological as well as neuropathological processes in the central nervous system (CNS). Their functional states are often referred to as M1-like and M2-like activation, and are believed to contribute to neuroinflammation-mediated neurodegeneration or neuroprotection, respectively. Parkinson's disease (PD) is one the most common neurodegenerative disease and is characterized by the progressive loss of midbrain dopaminergic (mDA) neurons in the substantia nigra resulting in bradykinesia, tremor, and rigidity...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28336953/palmitoylethanolamide-induces-microglia-changes-associated-with-increased-migration-and-phagocytic-activity-involvement-of-the-cb2-receptor
#6
F Guida, L Luongo, S Boccella, M E Giordano, R Romano, G Bellini, I Manzo, A Furiano, A Rizzo, R Imperatore, F A Iannotti, E D'Aniello, F Piscitelli, F Sca Rossi, L Cristino, V Di Marzo, V de Novellis, S Maione
The endogenous fatty acid amide palmitoylethanolamide (PEA) has been shown to exert anti-inflammatory actions mainly through inhibition of the release of pro-inflammatory molecules from mast cells, monocytes and macrophages. Indirect activation of the endocannabinoid (eCB) system is among the several mechanisms of action that have been proposed to underlie the different effects of PEA in vivo. In this study, we used cultured rat microglia and human macrophages to evaluate whether PEA affects eCB signaling. PEA was found to increase CB2 mRNA and protein expression through peroxisome proliferator-activated receptor-α (PPAR-α) activation...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336525/extracellular-tdp-43-aggregates-target-mapk-mak-mrk-overlapping-kinase-mok-and-trigger-caspase-3-il-18-signaling-in-microglia
#7
María M Leal-Lasarte, Jaime M Franco, Adahir Labrador-Garrido, David Pozo, Cintia Roodveldt
Dysregulated microglial responses are central in neurodegenerative proteinopathies, including amyotrophic lateral sclerosis (ALS) and frontotemporal lobar disease (FTLD). Pathologic TDP-43, which is typically found in intracellular inclusions, is a misfolding protein with emerging roles in ALS and FTLD. Recently, TDP-43 species have been found in extracellular fluids of patients; however, the overall implications of TDP-43-mediated signaling linked to neuroinflammation are poorly understood. Our work-the first, to our knowledge, to focus on innate immunity responses to TDP-43 aggregates-shows that such species are internalized by microglia and cause abnormal mobilization of endogenous TDP-43...
March 23, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28336494/minocycline-reduces-inflammatory-parameters-in-the-brain-structures-and-serum-and-reverses-memory-impairment-caused-by-the-administration-of-amyloid-%C3%AE-1-42-in-mice
#8
Michelle Lima Garcez, Francielle Mina, Tatiani Bellettini-Santos, Franciellen Gonçalves Carneiro, Aline Pereira da Luz, Gustavo Luis Schiavo, Matheus Scopel Andrighetti, Maylton Grégori Scheid, Renan Pereira Bolfe, Josiane Budni
Alzheimer's disease (AD) is a neurodegenerative disorder and the most common type of age-related dementia. Cognitive decline, beta-amyloid (Aβ) accumulation, neurofibrillary tangles, and neuroinflammation are the main pathophysiological characteristics of AD. Minocycline is a tetracycline derivative with anti-inflammatory properties that has a neuroprotective effect. The aim of this study was to evaluate the effect of minocycline on memory, neurotrophins and neuroinflammation in an animal model of AD induced by the administration of Aβ (1-42) oligomer...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28335600/redox-potential-sensitive-n-acetyl-cysteine-prodrug-nanoparticles-inhibit-the-activation-of-microglia-and-improve-neuronal-survival
#9
Eleni Markoutsa, Peisheng Xu
One hallmark of neuroinflammation is the activation of microglia, which triggers the production and release of reactive oxygen species (ROS), nitrate, nitrite, and cytokines. N-acetyl cysteine (NAC) is a free radical scavenger that is involved in the intracellular and extracellular detoxification of ROS in the brain. However, the clinical application of NAC is limited by its low bioavailability and short half-life. Herein, NAC was conjugated to a polymer through disulfide bond to form a NAC-prodrug nanoparticle (NAC-NP)...
March 23, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28334897/genetic-absence-of-alox5-protects-from-homocysteine-induced-memory-impairment-tau-phosphorylation-and-synaptic-pathology
#10
Jian-Guo Li, Carlos Barrero, Salim Merali, Domenico Praticò
Elevated level of homocysteine (Hcy) is considered a risk factor for neurodegenerative diseases, but the mechanisms remain to be established. Since high Hcy is associated with an up-regulation of the ALOX5 gene product, the 5Lipoxygenase (5LO), herein we investigated whether this activation is responsible for the Hcy effect on neurodegeneration or is a secondary event.To reach this goal, wild type mice and mice genetically deficient for 5LO were assessed after being exposed to a diet known to significantly increase brain levels of Hcy...
March 9, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334745/disease-correction-by-aav-mediated-gene-therapy-in-a-new-mouse-model-of-mucopolysaccharidosis-type-iiid
#11
Carles Roca, Sandra Motas, Sara Marcó, Albert Ribera, Víctor Sánchez, Xavier Sánchez, Joan Bertolin, Xavier León, Jennifer Pérez, Miguel Garcia, Pilar Villacampa, Jesús Ruberte, Anna Pujol, Virginia Haurigot, Fatima Bosch
Gene therapy is a promising therapeutic alternative for Lysosomal Storage Disorders (LSD), as it is not necessary to correct the genetic defect in all cells of an organ to achieve therapeutically significant levels of enzyme in body fluids, from which non-transduced cells can uptake the protein correcting their enzymatic deficiency. Animal models are instrumental in the development of new treatments for LSD. Here we report the generation of the first mouse model of the LSD Muccopolysaccharidosis Type IIID (MPSIIID), also known as Sanfilippo syndrome type D...
February 17, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28332488/parkinson-disease
#12
REVIEW
Werner Poewe, Klaus Seppi, Caroline M Tanner, Glenda M Halliday, Patrik Brundin, Jens Volkmann, Anette-Eleonore Schrag, Anthony E Lang
Parkinson disease is the second-most common neurodegenerative disorder that affects 2-3% of the population ≥65 years of age. Neuronal loss in the substantia nigra, which causes striatal dopamine deficiency, and intracellular inclusions containing aggregates of α-synuclein are the neuropathological hallmarks of Parkinson disease. Multiple other cell types throughout the central and peripheral autonomic nervous system are also involved, probably from early disease onwards. Although clinical diagnosis relies on the presence of bradykinesia and other cardinal motor features, Parkinson disease is associated with many non-motor symptoms that add to overall disability...
March 23, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28331857/thrombosis-neuroinflammation-and-poststroke-infection-the-multifaceted-role-of-neutrophils-in-stroke
#13
REVIEW
Johanna Ruhnau, Juliane Schulze, Alexander Dressel, Antje Vogelgesang
Immune cells can significantly predict and affect the clinical outcome of stroke. In particular, the neutrophil-to-lymphocyte ratio was shown to predict hemorrhagic transformation and the clinical outcome of stroke; however, the immunological mechanisms underlying these effects are poorly understood. Neutrophils are the first cells to invade injured tissue following focal brain ischemia. In these conditions, their proinflammatory properties enhance tissue damage and may promote ischemic incidences by inducing thrombus formation...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28329845/spatiotemporal-progression-and-remission-of-lesions-in-the-rat-brain-following-acute-intoxication-with-diisopropylfluorophosphate
#14
Sílvia Sisó, Brad A Hobson, Danielle J Harvey, Donald A Bruun, Douglas J Rowland, Joel R Garbow, Pamela J Lein
Similar to organophosphate (OP) nerve agents, diisopropylfluorophosphate (DFP) rapidly and irreversibly inhibits acetylcholinesterase, leading to convulsions that can progress to status epilepticus (SE). However, in contrast to the OP nerve agents, the long-term consequences of DFP-induced SE are not well known. Thus, we characterized the spatiotemporal profile of neuropathology during the first two months following acute DFP intoxication. Adult, male Sprague Dawley rats administered pyridostigmine bromide (0...
March 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28328972/altered-gut-microbiome-in-a-mouse-model-of-gulf-war-illness-causes-neuroinflammation-and-intestinal-injury-via-leaky-gut-and-tlr4-activation
#15
Firas Alhasson, Suvarthi Das, Ratanesh Seth, Diptadip Dattaroy, Varun Chandrashekaran, Caitlin N Ryan, Luisa S Chan, Traci Testerman, James Burch, Lorne J Hofseth, Ronnie Horner, Mitzi Nagarkatti, Prakash Nagarkatti, Stephen M Lasley, Saurabh Chatterjee
Many of the symptoms of Gulf War Illness (GWI) that include neurological abnormalities, neuroinflammation, chronic fatigue and gastrointestinal disturbances have been traced to Gulf War chemical exposure. Though the association and subsequent evidences are strong, the mechanisms that connect exposure to intestinal and neurological abnormalities remain unclear. Using an established rodent model of Gulf War Illness, we show that chemical exposure caused significant dysbiosis in the gut that included increased abundance of phylum Firmicutes and Tenericutes, and decreased abundance of Bacteroidetes...
2017: PloS One
https://www.readbyqxmd.com/read/28326890/functional-and-molecular-correlates-following-single-and-repeated-rat-closed-head-concussion-indices-of-vulnerability-following-brain-injury
#16
Andrea Mountney, Angela Boutte, Casandra M Cartagena, William J Flerlage, David Johnson, Chanyang Rho, Xi-Chun M Lu, Angela M Yarnell, Sean R Marcsisin, Jason Sousa, Chau Vuong, Victor E Zottig, Lai Yee Leung, Ying Deng-Bryant, Janice Gilsdorf, Frank C Tortella, Deborah A Shear
Closed-head concussive injury is one of the most common causes of traumatic brain injury (TBI). Isolated concussions frequently produce acute neurological impairments; however, individuals typically recover spontaneously within a short time frame. In contrast, brain injuries resulting from multiple concussions can result in cumulative damage and elevated risk of developing chronic brain pathologies, including chronic traumatic encephalopathy (CTE). Increased attention has focused on identification of diagnostic markers that can prognostically serve as indices of brain health after injury, revealing the temporal profile of vulnerability to a second insult...
March 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28326544/personalized-genetics-of-the-cholinergic-blockade-of-neuroinflammation
#17
REVIEW
Alon Simchovitz, Michael T Heneka, Hermona Soreq
Acetylcholine signaling is essential for cognitive functioning and blocks inflammation. To maintain homeostasis, cholinergic signaling is subjected to multi-leveled and bidirectional regulation by both proteins and non-coding microRNAs ('CholinomiRs'). CholinomiRs coordinate the cognitive and inflammatory aspects of cholinergic signaling by targeting major cholinergic transcripts including the acetylcholine hydrolyzing enzyme acetylcholinesterase (AChE). Notably, AChE inhibitors are the only currently approved line of treatment for Alzheimer's disease patients...
March 21, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28326060/microbial-neuraminidase-induces-a-moderate-and-transient-myelin-vacuolation-independent-of-complement-system-activation
#18
Pablo Granados-Durán, María Dolores López-Ávalos, Manuel Cifuentes, Margarita Pérez-Martín, María Del Mar Fernández-Arjona, Timothy R Hughes, Krista Johnson, B Paul Morgan, Pedro Fernández-Llebrez, Jesús M Grondona
AIMS: Some central nervous system pathogens express neuraminidase (NA) on their surfaces. In the rat brain, a single intracerebroventricular (ICV) injection of NA induces myelin vacuolation in axonal tracts. Here, we explore the nature, the time course, and the role of the complement system in this damage. METHODS: The spatiotemporal analysis of myelin vacuolation was performed by optical and electron microscopy. Myelin basic protein-positive area and oligodendrocyte transcription factor (Olig2)-positive cells were quantified in the damaged bundles...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28326017/adiponectin-regulates-the-polarization-and-function-of-microglia-via-ppar-%C3%AE-signaling-under-amyloid-%C3%AE-toxicity
#19
Juhyun Song, Seong-Min Choi, Byeong C Kim
Alzheimer's disease (AD), characterized by the abnormal accumulation of amyloid beta (Aβ), is gradually increasing globally. Given that AD is considered a neuroinflammatory disease, recent studies have focused on the cellular mechanisms in brain inflammatory conditions that underlie AD neuropathology. Microglia are macrophage cells in the central nervous system (CNS) that are activated in response to Aβ condition. The function of microglia contributes to the neuroinflammation in AD brain, suggesting that microglia regulate the production of inflammatory mediators and contribute to the regeneration of damaged tissues...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28325153/ultra-micronized-palmitoylethanolamide-an-efficacious-adjuvant-therapy-for-parkinson-s-disease
#20
Stefania Brotini, Carlo Schievano, Leonello Guidi
BACKGROUND: Parkinson's disease (PD) is the subject of intense efforts to develop strategies that slow down or stop disease progression and disability. Substantial evidence points to a prominent role for neuroinflammation in the underlying dopaminergic cell death. Ultramicronized palmitoylethanolamide (um-PEA) is well-known for its ability to promote the resolution of neuroinflammation and exert neuroprotection. This study was designed to assess the efficacy of um-PEA as adjuvant therapy in patients with advanced PD...
March 21, 2017: CNS & Neurological Disorders Drug Targets
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