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Neuroinflammation

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https://www.readbyqxmd.com/read/28550802/mechanism-of-action-of-three-newly-registered-drugs-for-multiple-sclerosis-treatment
#1
REVIEW
Kaja Kasarełło, Agnieszka Cudnoch-Jędrzejewska, Andrzej Członkowski, Dagmara Mirowska-Guzel
Multiple sclerosis (MS) is a disease of suspected autoimmune origin leading to neurodegeneration. The disease pathomechanism is considered to be primarily based on neuroinflammation directed against myelin antigens caused by autoreactive T cells. MS etiology remains still unknown, which makes it difficult to create an efficient therapy, therefore, MS treatment targets mechanisms involved in disease pathology. In this review, we present the mechanism of action of three newly registered drugs for MS. Dimethyl fumarate (DMF) is an agent presenting a broad spectrum of action...
February 22, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28550440/csf-concentrations-of-adipsin-and-adiponectin-in-patients-with-amyotrophic-lateral-sclerosis
#2
Héctor R Martínez, César E Escamilla-Ocañas, Carlos R Camara-Lemarroy, María T González-Garza, Juan M Tenorio-Pedraza, Martín Hernández-Torre
Amyotrophic lateral sclerosis (ALS) is described as a neurodegenerative disorder. However, neuroinflammation and chemokine expression are prominent pathological finding at sites of injury. Adipsin and adiponectin are molecules that are implicated in the pathogenesis of neurodegenerative and neuroimmune disorders. Adipsin and adiponectin concentrations were determined in the CSF of ALS patients and controls and the relationship of these chemokines with clinical severity and disease duration in ALS was determined...
May 26, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28550271/the-pleiotropic-vasoprotective-functions-of-high-density-lipoproteins-hdl
#3
Boyce Guilaine, Button Emily, Soo Sonja, Wellington Cheryl
The pleiotropic functions of circulating high density lipoprotein (HDL) on peripheral vascular health are well established. HDL plays a pivotal role in reverse cholesterol transport and is also known to suppress inflammation, endothelial activation and apoptosis in peripheral vessels. Although not expressed in the central nervous system, HDL has nevertheless emerged as a potential resilience factor for dementia in multiple epidemiological studies. Animal model data specifically support a role for HDL in attenuating the accumulation of β-amyloid within cerebral vessels concomitant with reduced neuroinflammation and improved cognitive performance...
May 26, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28550248/cd44-splice-variants-as-potential-players-in%C3%A2-alzheimer-s-disease-pathology
#4
Elhanan Pinner, Yaron Gruper, Micha Ben Zimra, Don Kristt, Moshe Laudon, David Naor, Nava Zisapel
Alzheimer's disease (AD) is a progressive neurodegenerative disorder characterized by cognitive deficits, deposition of amyloid-β (Aβ) plaques, intracellular neurofibrillary tangles, and neuronal cell death. Neuroinflammation is commonly believed to participate in AD pathogenesis. CD44 is an inflammation-related gene encoding a widely-distributed family of alternatively spliced cell surface glycoproteins that have been implicated in inflammation, metastases, and inflammation-linked neuronal injuries. Here we investigated the expression patterns of CD44S (which does not contain any alternative exon) and CD44 splice variants in postmortem hippocampal samples from AD patients and matched non-AD controls...
May 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550087/transcriptional-networks-in-rodent-models-support-a-role-for-gut-brain-communication-in-neurogenic-hypertension-a-review-of-the-evidence
#5
Jasenka Zubcevic, Ashley Baker, Christopher J Martyniuk
Hypertension (HTN) is the most prevalent condition observed in primary health care. Hypertension shows complex etiology, and neuroinflammation, overactive sympathetic drive, and the microbiome are associated with the disease. To obtain mechanistic perspective into neurogenic HTN, we first constructed a framework for transcriptional regulators of the disease using the Comparative Toxicogenomics Database. This approach yielded a core group of 178 transcripts that are prevalent in HTN, including leptin and neuropeptide Y...
May 26, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28549492/ginsenoside-rb1-attenuates-isoflurane-surgery-induced-cognitive-dysfunction-via-inhibiting-neuroinflammation-and-oxidative-stress
#6
Hui Hui Miao, Ye Zhang, Guan Nan Ding, Fang Xiao Hong, Peng Dong, Ming Tian
OBJECTIVE: Anesthetic isoflurane plus surgery has been reported to induce cognitive impairment. The underlying mechanism and targeted intervention remain largely to be determined. Ginsenoside Rb1 was reported to be neuroprotective. We therefore set out to determine whether ginsenoside Rb1 can attenuate isoflurane/surgery-induced cognitive dysfunction via inhibiting neuroinflammation and oxidative stress. METHODS: Five-months-old C57BL/6J female mice were treated with 1...
May 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28548309/tau-%C3%AE-synuclein-ratio-and-inflammatory-proteins-in-parkinson-s-disease-an-exploratory-study
#7
Manuel Delgado-Alvarado, Belén Gago, Ana Gorostidi, Haritz Jiménez-Urbieta, Rosalía Dacosta-Aguayo, Irene Navalpotro-Gómez, Javier Ruiz-Martínez, Alberto Bergareche, José F Martí-Massó, Pablo Martínez-Lage, Andrea Izagirre, María C Rodríguez-Oroz
BACKGROUND: No CSF or plasma biomarker has been validated for diagnosis or progression of PD. OBJECTIVES: To assess whether the CSF and plasma levels of proteins associated with PD neuropathological inclusions and with neuroinflammation might have value in the diagnosis of PD or in relation to disease severity. METHODS: CSF levels of α-synuclein, amyloid-ß1-42, total tau, and threonine-181 phosphorylated tau, as well as CSF and plasma levels of cytokines (interleukin-1ß, interleukin-2, interleukin, interferon-γ, and tumor necrosis factor α) were studied in 40 PD patients and 40 healthy controls...
May 26, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28546657/statins-reduce-lipopolysaccharide-induced-cytokine-and-inflammatory-mediator-release-in-an-in-vitro-model-of-microglial-like-cells
#8
A J McFarland, A K Davey, S Anoopkumar-Dukie
The anti-inflammatory effects of statins (HMG-CoA reductase inhibitors) within the cardiovascular system are well-established; however, their neuroinflammatory potential is unclear. It is currently unknown whether statins' neurological effects are lipid-dependent or due to pleiotropic mechanisms. Therefore, the assumption that all statin compounds will have the same effect within the central nervous system is potentially inappropriate, with no studies to date having compared all statins in a single model. Thus, the aim of this study was to compare the effects of the six statins (atorvastatin, fluvastatin, pitavastatin, pravastatin, rosuvastatin, and simvastatin) within a single in vitro model of neuroinflammation...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28545479/endoplasmic-reticulum-stress-and-inflammation-in-the-central-nervous-system
#9
REVIEW
Neil T Sprenkle, Savannah G Sims, Cristina L Sánchez, Gordon P Meares
Persistent endoplasmic reticulum (ER) stress is thought to drive the pathology of many chronic disorders due to its potential to elicit aberrant inflammatory signaling and facilitate cell death. In neurodegenerative diseases, the accumulation of misfolded proteins and concomitant induction of ER stress in neurons contributes to neuronal dysfunction. In addition, ER stress responses induced in the surrounding neuroglia may promote disease progression by coordinating damaging inflammatory responses, which help fuel a neurotoxic milieu...
May 25, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28545366/role-of-positron-emission-tomography-for-central-nervous-system-involvement-in-systemic-autoimmune-diseases-status-and-perspectives
#10
Daniele Mauro, Gaetano Barbagallo, Salvatore D'Angelo, Sannino Pasqualina, Saverio Naty, Caterina Bruno, Ignazio Olivieri, Rosa Daniela Grembiale, Francesco Ursini
In the last years, an increasing interest in molecular imaging has been raised by the extending potential of positron emission tomography (PET). The role of PET imaging, originally confined to the oncology setting, is continuously extending thanks to the development of novel radiopharmaceutical and to the implementation of hybrid imaging techniques, where PET scans are combined with computed tomography (CT) or magnetic resonance imaging(MRI) in order to improve spatial resolution. Early preclinical studies suggested that 18F-FDG PET can detect neuroinflammation; new developing radiopharmaceuticals targeting more specifically inflammation-related molecules are moving in this direction...
May 23, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28545157/the-aminoestrogen-prolame-increases-recognition-memory-and-hippocampal-neuronal-spine-density-in-aged-mice
#11
Alfonso Diaz, Samuel Treviño, Rubén Vázquez-Roque, Berenice Venegas, Blanca Espinosa, Gonzalo Flores, Juan Manuel Fernández-G, Luis F Montaño, Jorge Guevara
The aging brain shows biochemical and morphological changes in the dendrites of pyramidal neurons from the limbic system associated with memory loss. Prolame (N-(3-hydroxy-1,3,5 (10) -estratrien-17β-yl) -3-hydroxypropylamine) is a non-feminizing aminoestrogen with antithrombotic activity that prevents neuronal deterioration, oxidative stress and neuroinflammation. Our aim was to evaluate the effect of prolame on motor and cognitive processes, as well as its influence on the dendritic morphology of neurons at the CA1, CA3 and granule cells of the dentate gyrus (DG) regions of hippocampus (HP), and medium spiny neurons of the nucleus accumbens (NAcc) of aged mice...
May 25, 2017: Synapse
https://www.readbyqxmd.com/read/28542724/viruses-and-endogenous-retroviruses-in-multiple-sclerosis-from-correlation-to-causation
#12
REVIEW
A-F A Mentis, E Dardiotis, N Grigoriadis, E Petinaki, G M Hadjigeorgiou
Multiple sclerosis is an immune-mediated disease with an environmental component. According to a long-standing but unproven hypothesis dating to initial descriptions of multiple sclerosis (MS) at the end of the 19th century, viruses are either directly or indirectly implicated in MS pathogenesis. Whether viruses in MS are principally causal or simply contributory remains to be proven, but many viruses or viral elements-predominantly Epstein-Barr virus, human endogenous retroviruses (HERVs) and human herpesvirus 6 (HHV-6) but also less common viruses such as Saffold and measles viruses-are associated with MS...
May 23, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28540659/neuroprotective-benefits-of-aerobic-exercise-and-organoselenium-dietary-supplementation-in-hippocampus-of-old-rats
#13
José L Cechella, Marlon R Leite, Simone Pinton, Gilson Zeni, Cristina W Nogueira
The progressive decline of neurological functions, such as learning and memory, is an unavoidable consequence of aging. Our previous work suggested that the combination of physical exercise and a diet supplemented with diphenyl diselenide improves age-related memory decline in rats. The present study investigated the effects of physical exercise and a diet supplemented with diphenyl diselenide on the levels of proteins involved in the hippocampal neuroprotection to figure out the mechanisms related to the beneficial effects of this intervention in aged rats...
May 25, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28540600/microglial-interferon-signaling-and-white-matter
#14
Ashley McDonough, Richard V Lee, Jonathan R Weinstein
Microglia, the resident immune cells of the CNS, are primary regulators of the neuroimmune response to injury. Type I interferons (IFNs), including the IFNαs and IFNβ, are key cytokines in the innate immune system. Their activity is implicated in the regulation of microglial function both during development and in response to neuroinflammation, ischemia, and neurodegeneration. Data from numerous studies in multiple sclerosis (MS) and stroke suggest that type I IFNs can modulate the microglial phenotype, influence the overall neuroimmune milieu, regulate phagocytosis, and affect blood-brain barrier integrity...
May 25, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28539349/sleep-loss-promotes-astrocytic-phagocytosis-and-microglial-activation-in-mouse-cerebral-cortex
#15
Michele Bellesi, Luisa de Vivo, Mattia Chini, Francesca Gilli, Giulio Tononi, Chiara Cirelli
We previously found that Mertk and its ligand Gas6, astrocytic genes involved in phagocytosis, are upregulated after acute sleep deprivation. These results suggested that astrocytes may engage in phagocytic activity during extended wake, but direct evidence was lacking. Studies in humans and rodents also found that sleep loss increases peripheral markers of inflammation, but whether these changes are associated with neuroinflammation and/or activation of microglia, the brain's resident innate immune cells, was unknown...
May 24, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28539281/-choline-improves-lipopolysaccharide-induced-central-nervous-system-inflammatory-response-and-cognitive-dysfunction-in-mice
#16
Jun Yu, Wei-Xing Zhao, Chun-Yan DU, Na Zhang, Wei-Dong Zhang, Sheng-Yang Jin, Hai Wang, Ze-Guo Feng
OBJECTIVE: To assess the effect of choline in ameliorating lipopolysaccharide (LPS)-induced central nervous system inflammation and cognitive deficits in mice and explore the underlying mechanism. METHODS: Seventy-two mice were randomized into saline control group, LPS group, choline intervention group and choline control group. In the latter two groups, the mice received pretreatment with intraperitoneal injections of choline (40 mg/kg, 3 times daily for 3 consecutive days) prior to microinjection of LPS into the lateral cerebral ventricle to induce central nervous system inflammation; in saline and LPS groups, the mice were pretreated with saline in the same manner before intraventicular injection of artificial cerebrospinal fluid...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28539244/manganese-exposure-induces-neuroinflammation-by-impairing-mitochondrial-dynamics-in-astrocytes
#17
Souvarish Sarkar, Emir Malovic, Dilshan S Harischandra, Hilary A Ngwa, Anamitra Ghosh, Colleen Hogan, Dharmin Rokad, Gary Zenitsky, Huajun Jin, Vellareddy Anantharam, Anumantha G Kanthasamy, Arthi Kanthasamy
Chronic manganese (Mn) exposure induces neurotoxicity, which is characterized by Parkinsonian symptoms resulting from impairment in the extrapyramidal motor system of the basal ganglia. Mitochondrial dysfunction and oxidative stress are considered key pathophysiological features of Mn neurotoxicity. Recent evidence suggests astrocytes as a major target of Mn neurotoxicity since Mn accumulates predominantly in astrocytes. However, the primary mechanisms underlying Mn-induced astroglial dysfunction and its role in metal neurotoxicity are not completely understood...
May 21, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28537651/the-burden-of-hiv-associated-neurocognitive-disorder-hand-in-post-haart-era-a-multidisciplinary-review-of-the-literature
#18
G Caruana, G Vidili, P A Serra, P Bagella, A Spanu, V Fiore, D F Calvisi, R Manetti, G Rocchitta, S Nuvoli, S Babudieri, M M Simile, G Madeddu
OBJECTIVE: The purpose of the present multidisciplinary review is to give an updated insight into the most recent findings regarding the pathophysiology, diagnosis and therapeutics of HIV-associated neurocognitive disorder (HAND). MATERIALS AND METHODS: We performed a comprehensive search, through electronic databases (Pubmed - MEDLINE) and search engines (Google Scholar), of peer-reviewed publications (articles and reviews) and conferences proceedings on HAND pathophysiology, diagnosis, and therapy, from 1999 to 2016...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28536579/peripherally-induced-regulatory-t-cells-recruited-protectors-of-the-central-nervous-system-against-autoimmune-neuroinflammation
#19
REVIEW
Andrew Jones, Daniel Hawiger
Defects in regulatory T cells (Treg cells) aggravate multiple sclerosis (MS) after its onset and the absence of Treg cell functions can also exacerbate the course of disease in an animal model of MS. However, autoimmune neuroinflammation in many MS models can be acutely provoked in healthy animals leading to an activation of encephalitogenic T cells despite the induction of immune tolerance in the thymus including thymically produced (t)Treg cells. In contrast, neuroinflammation can be ameliorated or even completely prevented by the antigen-specific Treg cells formed extrathymically in the peripheral immune system (pTreg cells) during tolerogenic responses to relevant neuronal antigens...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28535981/protective-effect-of-remote-limb-post-conditioning-via-upregulation-of-heme-oxygenase-1-bdnf-pathway-in-rat-model-of-cerebral-ischemic-reperfusion-injury
#20
Sruthi Ramagiri, Rajeev Taliyan
AIM: Remote ischemic Post Conditioning (RIPOC) has shown to be neuroprotective against cerebral Ischemic Reperfusion (I/R) injury. However, the RIPOC protection against I/R injury induced cognitive abnormalities still remains elusive. Abundant evidence from earlier studies highlighted the role of heme oxygenase-1 (HO-1) in neuronal survival in various neurodegenerative disorders. Thus, in the present study, we investigated the possible contribution of HO-1 in RIPOC mediated neuroprotection against cerebral I/R injury and associated cognitive deficits...
May 20, 2017: Brain Research
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