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https://www.readbyqxmd.com/read/28637489/synaptoimmunology-roles-in-health-and-disease
#1
REVIEW
Robert Nisticò, Eric Salter, Celine Nicolas, Marco Feligioni, Dalila Mango, Zuner A Bortolotto, Pierre Gressens, Graham L Collingridge, Stephane Peineau
Mounting evidence suggests that the nervous and immune systems are intricately linked. Many proteins first identified in the immune system have since been detected at synapses, playing different roles in normal and pathological situations. In addition, novel immunological functions are emerging for proteins typically expressed at synapses. Under normal conditions, release of inflammatory mediators generally represents an adaptive and regulated response of the brain to immune signals. On the other hand, when immune challenge becomes prolonged and/or uncontrolled, the consequent inflammatory response leads to maladaptive synaptic plasticity and brain disorders...
June 20, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28633629/prevalence-of-and-risk-factors-for-severe-cognitive-and-sleep-symptoms-in-me-cfs-and-ms
#2
Vageesh Jain, Amit Arunkumar, Caroline Kingdon, Eliana Lacerda, Luis Nacul
BACKGROUND: There are considerable phenotypic and neuroimmune overlaps between myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and multiple sclerosis (MS). While the precise aetiologies of both MS and ME/CFS are unclear, evidence suggests that deterioration in cognitive function is widely prevalent in patients with either condition. Little is known about differing risk factors or exposures, which may lead to severe cognitive or sleep symptoms. This study aims to gauge the extent of cognitive and sleep symptoms in ME/CFS and MS patients participating in the UK ME/CFS Biobank and identify the characteristics of those experiencing severe symptoms...
June 20, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28620391/toll-like-receptor-dependent-negative-effects-of-opioids-a-battle-between-analgesia-and-hyperalgesia
#3
REVIEW
Masaud Shah, Sangdun Choi
Our understanding of the pathophysiology of the pathological pain and the pharmacology of analgesic treatments has progressed tremendously over the past two decades. Among the well-documented pro-algesic factors, glia and other toll-like receptors (TLRs)-expressing cells in the neuroimmune interface have been recognized for their role in the development of neuropathic pain and for compromising the analgesic effects of opioids. Here, we comprehensively review the molecular mechanisms of pain initiation and progression, the role of TLRs in these processes, and the molecular mechanisms of morphine and morphine-3-glucuronide in TLR-dependent central immune signaling...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28620379/neuroimmune-interactions-in-schizophrenia-focus-on-vagus-nerve-stimulation-and-activation-of-the-alpha-7-nicotinic-acetylcholine-receptor
#4
REVIEW
Fabiana Maria das Graças Corsi-Zuelli, Fernanda Brognara, Gustavo Fernando da Silva Quirino, Carlos Hiroji Hiroki, Rafael Sobrano Fais, Cristina Marta Del-Ben, Luis Ulloa, Helio Cesar Salgado, Alexandre Kanashiro, Camila Marcelino Loureiro
Schizophrenia is one of the most debilitating mental disorders and is aggravated by the lack of efficacious treatment. Although its etiology is unclear, epidemiological studies indicate that infection and inflammation during development induces behavioral, morphological, neurochemical, and cognitive impairments, increasing the risk of developing schizophrenia. The inflammatory hypothesis of schizophrenia is also supported by clinical studies demonstrating systemic inflammation and microglia activation in schizophrenic patients...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28588507/neurovascular-unit-dysfunction-and-blood-brain-barrier-hyperpermeability-contribute-to-schizophrenia-neurobiology-a-theoretical-integration-of-clinical-and-experimental-evidence
#5
REVIEW
Souhel Najjar, Silky Pahlajani, Virginia De Sanctis, Joel N H Stern, Amanda Najjar, Derek Chong
Schizophrenia is a psychotic disorder characterized by delusions, hallucinations, negative symptoms, as well as behavioral and cognitive dysfunction. It is a pathoetiologically heterogeneous disorder involving complex interrelated mechanisms that include oxidative stress and neuroinflammation. Neurovascular endothelial dysfunction and blood-brain barrier (BBB) hyperpermeability are established mechanisms in neurological disorders with comorbid psychiatric symptoms such as epilepsy, traumatic brain injury, and Alzheimer's disease...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28580582/modulating-inflammation-and-neuroprotection-in-multiple-sclerosis
#6
REVIEW
Heather Yong, Gabrielle Chartier, Jacqueline Quandt
Multiple sclerosis (MS) is a neurological disorder of the central nervous system with a presentation and disease course that is largely unpredictable. MS can cause loss of balance, impaired vision or speech, weakness and paralysis, fatigue, depression, and cognitive impairment. Immunomodulation is a major target given the appearance of focal demyelinating lesions in myelin-rich white matter, yet progression and an increasing appreciation for gray matter involvement, even during the earliest phases of the disease, highlights the need to afford neuroprotection and limit neurodegenerative processes that correlate with disability...
June 5, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28566946/a-multispecies-approach-for-understanding-neuroimmune-mechanisms-of-stress
#7
Terrence Deak, Anastacia Kudinova, Dennis F Lovelock, Brandon E Gibb, Michael B Hennessy
The relationship between stress challenges and adverse health outcomes, particularly for the development of affective disorders, is now well established. The highly conserved neuroimmune mechanisms through which responses to stressors are transcribed into effects on males and females have recently garnered much attention from researchers and clinicians alike. The use of animal models, from mice to guinea pigs to primates, has greatly increased our understanding of these mechanisms on the molecular, cellular, and behavioral levels, and research in humans has identified particular brain regions and connections of interest, as well as associations between stress-induced inflammation and psychiatric disorders...
March 2017: Dialogues in Clinical Neuroscience
https://www.readbyqxmd.com/read/28550440/csf-concentrations-of-adipsin-and-adiponectin-in-patients-with-amyotrophic-lateral-sclerosis
#8
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/28540600/microglial-interferon-signaling-and-white-matter
#9
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/28513566/neurophysiological-changes-induced-by-chronic-toxoplasma-gondii-infection
#10
REVIEW
Ellen Tedford, Glenn McConkey
Although the parasite Toxoplasma gondii is one of the most pervasive neurotropic pathogens in the world, the host-parasite interactions during CNS infection and the consequences of neurological infection are just beginning to be unraveled. The chronic stages of infection have been considered dormant, although several studies have found correlations of infection with an array of host behavioral changes. These may facilitate parasite transmission and impact neurological diseases. During infection, in addition to the presence of the parasites within neurons, host-mediated neuroimmune and hormonal responses to infection are also present...
May 17, 2017: Pathogens
https://www.readbyqxmd.com/read/28503135/the-gut-microbiota-and-autism-spectrum-disorders
#11
REVIEW
Qinrui Li, Ying Han, Angel Belle C Dy, Randi J Hagerman
Gastrointestinal (GI) symptoms are a common comorbidity in patients with autism spectrum disorder (ASD), but the underlying mechanisms are unknown. Many studies have shown alterations in the composition of the fecal flora and metabolic products of the gut microbiome in patients with ASD. The gut microbiota influences brain development and behaviors through the neuroendocrine, neuroimmune and autonomic nervous systems. In addition, an abnormal gut microbiota is associated with several diseases, such as inflammatory bowel disease (IBD), ASD and mood disorders...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28500787/corticosterone-primes-the-neuroinflammatory-response-to-gulf-war-illness-relevant-organophosphates-independently-of-acetylcholinesterase-inhibition
#12
Alicia R Locker, Lindsay T Michalovicz, Kimberly A Kelly, Julie V Miller, Diane B Miller, James P O'Callaghan
Gulf War Illness (GWI) is a chronic multi-symptom disorder affecting veterans of the 1991 Gulf War. Among the symptoms of GWI are those associated with sickness behavior, observations suggestive of underlying neuroinflammation. We have shown that exposure of mice to the stress hormone, corticosterone (CORT), and to diisopropyl fluorophosphate (DFP), as a nerve agent mimic, results in marked neuroinflammation, findings consistent with a stress/neuroimmune basis of GWI. Here, we examined the contribution of irreversible and reversible acetylcholinesterase (AChE) inhibitors to neuroinflammation in our mouse model of GWI...
May 13, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28499899/the-wake-promoting-drug-modafinil-prevents-motor-impairment-in-sickness-behavior-induced-by-lps-in-mice-role-for-dopaminergic-d1-receptor
#13
Adriano Zager, Wesley Nogueira Brandão, Rafael Oliveira Margatho, Jean Pierre Peron, Sergio Tufik, Monica Levy Andersen, Birgitte Rahbek Kornum, João Palermo-Neto
The wake-promoting drug Modafinil has been used for many years for treatment of Narcolepsy and Excessive Daytime Sleepiness, due to a dopamine-related psychostimulant action. Recent studies have indicated that Modafinil prevents neuroinflammation in animal models. Thus, the aim of the present study was to evaluate the effect of Modafinil pretreatment in the Lipopolysaccharide (LPS)-induced sickness and depressive-like behaviors. Adult male C57BL/6J mice were pretreated with Vehicle or Modafinil (90mg/Kg) and, 30min later, received a single saline or LPS (2mg/Kg) administration, and were submitted to the open field and elevated plus maze test 2h later...
May 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28483660/markers-of-neuroinflammation-and-neuronal-injury-in-bipolar-disorder-relation-to-prospective-clinical-outcomes
#14
Anniella Isgren, Carl Sellgren, Carl-Johan Ekman, Jessica Holmén-Larsson, Kaj Blennow, Henrik Zetterberg, Joel Jakobsson, Mikael Landén
BACKGROUND: Neuroimmune mechanisms have been linked to the pathophysiology of bipolar disorder based on studies of biomarkers in plasma, cerebrospinal fluid (CSF), and postmortem brain tissue. There are, however, no longitudinal studies investigating if CSF markers of neuroinflammation and neuronal injury predict clinical outcomes in patients with bipolar disorder. We have in previous studies found higher CSF concentrations of interleukin-8 (IL-8), monocyte chemoattractant protein 1 (MCP-1/CCL-2), chitinase-3-like protein 1 (CHI3L1/YKL-40), and neurofilament light chain (NF-L) in euthymic patients with bipolar disorder compared with controls...
May 5, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28480882/dysfunction-of-microglial-stat3-alleviates-depressive-behavior-via-neuron-microglia-interactions
#15
Sun-Ho Kwon, Jeong-Kyu Han, Moonseok Choi, Yong-Jin Kwon, Sung Joon Kim, Eun Hee Yi, Jae-Cheon Shin, Ik-Hyun Cho, Byung-Hak Kim, Sang Jeong Kim, Sang-Kyu Ye
Neuron-microglia interactions have a crucial role in maintaining the neuroimmune system. The balance of neuroimmune system has emerged as an important process in the pathophysiology of depression. However, how neuron-microglia interactions contribute to major depressive disorders has been poorly understood. Herein, we demonstrated that microglia-derived synaptic changes induced antidepressive-like behavior by using microglia-specific signal transducer and activator of transcription 3 (STAT3) knockout (KO) (STAT3(fl/fl);LysM-Cre(+/-)) mice...
May 8, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28470955/phenotypic-characterisation-of-cell-populations-in-the-brains-of-horses-experimentally-infected-with-west-nile-virus
#16
G H Delcambre, J Liu, W J Streit, G P J Shaw, K Vallario, J Herrington, N Wenzlow, K L Barr, M T Long
BACKGROUND: West Nile virus (WNV), a mosquito borne member of the Flaviviridae, is one of the most commonly diagnosed agents of viral encephalitis in horses and people worldwide. OBJECTIVES: A cassette of markers for formalin-fixed paraffin-embedded tissue and an archive of tissues from experimental infections in the horse were used to investigate the equine neuroimmune response to WNV meningoencephalomyelitis to phenotype the early response to WNV infection in the horse...
May 4, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28465254/activation-of-adenosine-a2a-receptor-signaling-regulates-the-expression-of-cytokines-associated-with-immunologic-dysfunction-in-btbr-t-itpr3-tf-j-mice
#17
Mushtaq A Ansari, Sabry M Attia, Ahmed Nadeem, Saleh A Bakheet, Mohammad Raish, Tajdar H Khan, Othman A Al-Shabanah, Sheikh F Ahmad
Autism spectrum disorder (ASD) is neurodevelopmental disorders characterized by stereotypical repetitive behavior, impaired social interaction, and deficits in communication. The BTBR T(+) Itpr3(tf)/J (BTBR) mice have been extensively used as an animal model of the ASD-like phenotype. Adenosine A2A receptors (A2ARs) are considered potential targets in the treatment of neurodegenerative diseases. In this study, we used the A2AR antagonist SCH 5826 (SCH) and the A2AR agonist CGS 21680 (CGS) to investigate the activation of A2AR signaling in immune cells...
April 30, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28460650/developmental-toxicant-exposure-in-a-mouse-model-of-alzheimer-s-disease-induces-differential-sex-associated-microglial-activation-and-increased-susceptibility-to-amyloid-accumulation
#18
A N vonderEmbse, Q Hu, J C DeWitt
As the resident macrophage of the central nervous system, microglia are thought to contribute to Alzheimer's disease (AD) pathology through lack of neuroprotection. The role of immune dysfunction in AD may be due to disruption of regulatory signals for the activation of microglia that may occur early in development. We hypothesized that early toxicant exposure would systematically activate microglia, possibly reversing the pathological severity of AD. Offspring of a triple transgenic murine model for AD (3×TgAD) were exposed to a model neurotoxicant, lead acetate, from postnatal days (PND) 5-10...
May 2, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28455693/therapeutic-strategies-under-development-targeting-inflammatory-mechanisms-in-amyotrophic-lateral-sclerosis
#19
REVIEW
Sebastiano Giuseppe Crisafulli, Simona Brajkovic, Maria Sara Cipolat Mis, Valeria Parente, Stefania Corti
Amyotrophic lateral sclerosis (ALS) is a neurological disease characterized by the progressive loss of cortical, bulbar, and spinal motor neurons (MNs). The cardinal manifestation of ALS is a progressive paralysis which leads to death within a time span of 3 to 5 years after disease onset. Despite similar final output of neuronal death, the underlying pathogenic causes are various and no common cause of neuronal damage has been identified to date. Inflammation-mediated neuronal injury is increasingly recognized as a major factor that promotes disease progression and amplifies the MN death-inducing processes...
April 28, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28438638/adenosine-a2a-receptor-modulates-neuroimmune-function-through-th17-retinoid-related-orphan-receptor-gamma-t-ror%C3%AE-t-signaling-in-a-btbr-t-itpr3-tf-j-mouse-model-of-autism
#20
Mushtaq A Ansari, Ahmed Nadeem, Sabry M Attia, Saleh A Bakheet, Mohammad Raish, Sheikh F Ahmad
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder characterized by abnormal social interactions, repetitive behaviors that impair social communication, and circumscribed interests. BTBR T+tf/J (BTBR) inbred mice are generally used as a model for ASD, as they show repetitive behaviors and social deficits that resemble signs of ADS in humans. Adenosine A2A receptors (A2ARs) are considered as potential targets in the treatment of immune, inflammatory, and neurodegenerative diseases. In this study, we investigated the potential effects of the A2A adenosine receptor (A2AR) antagonist SCH 5826 (SCH) and agonist CGS 21680 (CGS) on behavior (self-grooming), hot plate test results, and expression levels of IL-17A(+), RORγt(+), Foxp3(+), and IL-10(+) in CD4(+) T spleen cells in BTBR and C57BL/6 (B6) mice...
April 21, 2017: Cellular Signalling
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