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Journal of Neuroinflammation

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https://www.readbyqxmd.com/read/29471842/toxoplasma-gondii-alters-nmdar-signaling-and-induces-signs-of-alzheimer-s-disease-in-wild-type-c57bl-6-mice
#1
Luisa Torres, Sudie-Ann Robinson, Do-Geun Kim, Angela Yan, Thomas A Cleland, Margaret S Bynoe
BACKGROUND: Alzheimer's disease (AD) is a progressive neurodegenerative disease associated with cognitive decline and complete loss of basic functions. The ubiquitous apicomplexan parasite Toxoplasma gondii (T. gondii) infects up to one third of the world's population and is implicated in AD. METHODS: We infected C57BL/6 wild-type male and female mice with 10 T. gondii ME49 cysts and assessed whether infection led to behavioral and anatomical effects using immunohistochemistry, immunofluorescence, Western blotting, cell culture assays, as well as an array of mouse behavior tests...
February 23, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29471880/-18-f-fspg-pet-reveals-increased-cystine-glutamate-antiporter-xc-activity-in-a-mouse-model-of-multiple-sclerosis
#2
Aileen Hoehne, Michelle L James, Israt S Alam, John A Ronald, Bernadette Schneider, Aloma D'Souza, Timothy H Witney, Lauren E Andrews, Haley C Cropper, Deepak Behera, Gayatri Gowrishankar, Zhaoqing Ding, Tony Wyss-Coray, Frederick T Chin, Sandip Biswal, Sanjiv S Gambhir
BACKGROUND: The cystine/glutamate antiporter (xc-) has been implicated in several neurological disorders and, specifically, in multiple sclerosis (MS) as a mediator of glutamate excitotoxicity and proinflammatory immune responses. We aimed to evaluate an xc-specific positron emission tomography (PET) radiotracer, (4S)-4-(3-[18 F]fluoropropyl)-L-glutamate ([18 F]FSPG), for its ability to allow non-invasive monitoring of xc- activity in a mouse model of MS. METHODS: Experimental autoimmune encephalomyelitis (EAE) was induced in C57BL/6 mice by subcutaneous injection of myelin oligodendrocyte glycoprotein (MOG35-55 ) peptide in complete Freund's adjuvant (CFA) followed by pertussis toxin...
February 22, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29471847/the-impact-of-metallothionein-ii-on-microglial-response-to-tumor-necrosis-factor-alpha-tnf%C3%AE-and-downstream-effects-on-neuronal-regeneration
#3
Jacqueline Y K Leung, William R Bennett, Anna E King, Roger S Chung
BACKGROUND: The extracellular environment plays an important role in supporting the regeneration of axons after injury. Metallothionein-II (MTII) is a metal-binding protein known for its neuroprotective effect by directly stimulating the growth of axons after injury. Previous studies have shown that MTII also modulates the response of astrocytes and microglia after injury. However, a detailed analysis describing how MTII modulates the interaction between microglia and neurons is lacking...
February 22, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29467007/enhanced-glycolysis-contributes-to-the-pathogenesis-of-experimental-autoimmune-neuritis
#4
Ru-Tao Liu, Min Zhang, Chun-Lin Yang, Peng Zhang, Na Zhang, Tong Du, Meng-Ru Ge, Long-Tao Yue, Xiao-Li Li, Heng Li, Rui-Sheng Duan
BACKGROUND: With the recognition of the key roles of cellular metabolism in immunity, targeting metabolic pathway becomes a new strategy for autoimmune disease treatment. Guillain-Barré syndrome (GBS) is an acute immune-mediated inflammatory demyelinating disease of the peripheral nervous system, characterized by inflammatory cell infiltration. These inflammatory cells, including activated macrophages, Th1 cells, and Th17 cells, generally undergo metabolic reprogramming and rely mainly on glycolysis to exert functions...
February 21, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29467002/intraocular-dhodh-inhibitor-pp-001-suppresses-relapsing-experimental-uveitis-and-cytokine-production-of-human-lymphocytes-but-not-of-rpe-cells
#5
Maria Diedrichs-Möhring, Sandy Niesik, Claudia S Priglinger, Stephan R Thurau, Franz Obermayr, Stefan Sperl, Gerhild Wildner
BACKGROUND: Uveitis is a potentially blinding inflammatory disease of the inner eye with a high unmet need for new therapeutic interventions. Here, we wanted to investigate the suppressive effect of the intraocular application of the small molecule dihydroorotate dehydrogenase (DHODH)-inhibitor PP-001 on experimental relapsing rat uveitis and furthermore determine its effect on proliferation and cytokine secretion of human peripheral blood lymphocytes (PBL) and human retinal pigment epithelial (RPE) cells in vitro...
February 21, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29467001/neuregulin-1-elicits-a-regulatory-immune-response-following-traumatic-spinal-cord-injury
#6
Arsalan Alizadeh, Kallivalappil T Santhosh, Hardeep Kataria, Abdelilah S Gounni, Soheila Karimi-Abdolrezaee
BACKGROUND: Spinal cord injury (SCI) triggers a robust neuroinflammatory response that governs secondary injury mechanisms with both degenerative and pro-regenerative effects. Identifying new immunomodulatory therapies to promote the supportive aspect of immune response is critically needed for the treatment of SCI. We previously demonstrated that SCI results in acute and permanent depletion of the neuronally derived Neuregulin-1 (Nrg-1) in the spinal cord. Increasing the dysregulated level of Nrg-1 through acute intrathecal Nrg-1 treatment enhanced endogenous cell replacement and promoted white matter preservation and functional recovery in rat SCI...
February 21, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29467000/ginsenoside-re-protects-methamphetamine-induced-dopaminergic-neurotoxicity-in-mice-via-upregulation-of-dynorphin-mediated-%C3%AE%C2%BA-opioid-receptor-and-downregulation-of-substance-p-mediated-neurokinin-1-receptor
#7
Duy-Khanh Dang, Eun-Joo Shin, Dae-Joong Kim, Hai-Quyen Tran, Ji Hoon Jeong, Choon-Gon Jang, Seung-Yeol Nah, Jung Hwan Jeong, Jae Kyung Byun, Sung Kwon Ko, Guoying Bing, Jau-Shyong Hong, Hyoung-Chun Kim
BACKGROUND: We previously reported that ginsenoside Re (GRe) attenuated against methamphetamine (MA)-induced neurotoxicity via anti-inflammatory and antioxidant potentials. We also demonstrated that dynorphin possesses anti-inflammatory and antioxidant potentials against dopaminergic loss, and that balance between dynorphin and substance P is important for dopaminergic neuroprotection. Thus, we examined whether GRe positively affects interactive modulation between dynorphin and substance P against MA neurotoxicity in mice...
February 21, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29463313/lymphotoxin-%C3%AE-receptor-mediated-nf%C3%AE%C2%BAb-signaling-promotes-glial-lineage-differentiation-and-inhibits-neuronal-lineage-differentiation-in-mouse-brain-neural-stem-progenitor-cells
#8
Xiao Xiao, Raj Putatunda, Yonggang Zhang, Priya V Soni, Fang Li, Ting Zhang, Mingyang Xin, Jin Jun Luo, John R Bethea, Yuan Cheng, Wenhui Hu
BACKGROUND: Lymphotoxin (LT) is a lymphokine mainly expressed in lymphocytes. LTα binds one or two membrane-associated LTβ to form LTα2 β1 or LTα1 β2 heterotrimers. The predominant LTα1 β2 binds to LTβ receptor (LTβR) primarily expressed in epithelial and stromal cells. Most studies on LTβR signaling have focused on the organization, development, and maintenance of lymphoid tissues. However, the roles of LTβR signaling in the nervous system, particularly in neurogenesis, remain unknown...
February 20, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29463289/strain-dependent-effects-of-clinical-echovirus-30-outbreak-isolates-at-the-blood-csf-barrier
#9
Tobias Dahm, Ortwin Adams, Sindy Boettcher, Sabine Diedrich, Vasily Morozov, Grant Hansman, Petra Fallier-Becker, Sebastian Schädler, Claus J Burkhardt, Christel Weiss, Carolin Stump-Guthier, Hiroshi Ishikawa, Horst Schroten, Christian Schwerk, Tobias Tenenbaum, Henriette Rudolph
BACKGROUND: Echovirus (E) 30 (E-30) meningitis is characterized by neuroinflammation involving immune cell pleocytosis at the protective barriers of the central nervous system (CNS). In this context, infection of the blood-cerebrospinal fluid barrier (BCSFB), which has been demonstrated to be involved in enteroviral CNS pathogenesis, may affect the tight junction (TJ) and adherens junction (AJ) function and morphology. METHODS: We used an in vitro human choroid plexus epithelial (HIBCPP) cell model to investigate the effect of three clinical outbreak strains (13-311, 13-759, and 14-397) isolated in Germany in 2013, and compared them to E-30 Bastianni...
February 20, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29458437/ablation-of-caspase-1-protects-against-tbi-induced-pyroptosis-in-vitro-and-in-vivo
#10
Wei Liu, Yuhua Chen, Jiao Meng, Minfei Wu, Fangfang Bi, Cuicui Chang, Hua Li, Liangjun Zhang
BACKGROUND: Traumatic brain injury (TBI) is a critical public health and socioeconomic problem throughout the world. Inflammation-induced secondary injury is one of the vital pathogenic parameters of TBI. Molecular signaling cascades of pyroptosis, a specific type of cellular necrosis, are key drivers of TBI-induced inflammation. METHODS: In this study, mice with genetically ablated caspase-1 (caspase-1-/- ) were subjected to controlled cortical impact injury in vivo, and primary neuron deficient in caspase-1 through siRNA knockdown and pharmacologic inhibition was stimulated by mechanical scratch, equiaxial stretch, and LPS/ATP in vitro...
February 19, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29454374/effects-of-umbilical-cord-blood-cells-and-subtypes-to-reduce-neuroinflammation-following-perinatal-hypoxic-ischemic-brain-injury
#11
Courtney A McDonald, Tayla R Penny, Madison C B Paton, Amy E Sutherland, Lakshmi Nekkanti, Tamara Yawno, Margie Castillo-Melendez, Michael C Fahey, Nicole M Jones, Graham Jenkin, Suzanne L Miller
BACKGROUND: It is well understood that hypoxic-ischemic (HI) brain injury during the highly vulnerable perinatal period can lead to cerebral palsy, the most prevalent cause of chronic disability in children. Recently, human clinical trials have reported safety and some efficacy following treatment of cerebral palsy using umbilical cord blood (UCB) cells. UCB is made up of many different cell types, including endothelial progenitor cells (EPCs), T regulatory cells (Tregs), and monocyte-derived suppressor cells (MDSCs)...
February 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29454354/cerebrospinal-fluid-level-of-nogo-receptor-1-antagonist-lateral-olfactory-tract-usher-substance-lotus-correlates-inversely-with-the-extent-of-neuroinflammation
#12
Keita Takahashi, Hideyuki Takeuchi, Yuji Kurihara, Hiroshi Doi, Misako Kunii, Kenichi Tanaka, Haruko Nakamura, Ryoko Fukai, Atsuko Tomita-Katsumoto, Mikiko Tada, Yuichi Higashiyama, Hideto Joki, Shigeru Koyano, Kohtaro Takei, Fumiaki Tanaka
BACKGROUND: Although inflammation in the central nervous system is responsible for multiple neurological diseases, the lack of appropriate biomarkers makes it difficult to evaluate inflammatory activities in these diseases. Therefore, a new biomarker reflecting neuroinflammation is required for accurate diagnosis, appropriate therapy, and comprehension of pathogenesis of these neurological disorders. We previously reported that the cerebrospinal fluid (CSF) concentration of lateral olfactory tract usher substance (LOTUS), which promotes axonal growth as a Nogo receptor 1 antagonist, negatively correlates with disease activity in multiple sclerosis, suggesting that variation in LOTUS reflects the inflammatory activities and is a useful biomarker to evaluate the disease activity...
February 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29452577/polymerase-delta-interacting-protein-2-deficiency-protects-against-blood-brain-barrier-permeability-in-the-ischemic-brain
#13
Marina S Hernandes, Bernard Lassègue, Lula L Hilenski, Jonathan Adams, Ning Gao, Chia-Yi Kuan, Yu-Yo Sun, Lihong Cheng, Daniel S Kikuchi, Manuel Yepes, Kathy K Griendling
BACKGROUND: Polymerase δ-interacting protein 2 (Poldip2) is a multifunctional protein that regulates vascular extracellular matrix composition and matrix metalloproteinase (MMP) activity. The blood-brain barrier (BBB) is a dynamic system assembled by endothelial cells, basal lamina, and perivascular astrocytes, raising the possibility that Poldip2 may be involved in maintaining its structure. We investigated the role of Poldip2 in the late BBB permeability induced by cerebral ischemia...
February 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29452586/the-role-of-glucocorticoid-interleukin-1%C3%AE-and-antioxidants-in-prenatal-stress-effects-on-embryonic-microglia
#14
Jada Bittle, Hanna E Stevens
Maternal stress during pregnancy is associated with an increased risk of psychopathology in offspring. Resident immune cells of the brain, microglia, may be mediators of prenatal stress and altered neurodevelopment. Here, we demonstrate that neither the exogenous pro-inflammatory cytokine, interleukin-1β (IL-1β), nor the glucocorticoid hormone, corticosterone, recapitulated the full effects of prenatal stress on the morphology of microglial cells in the cortical plate of embryonic mice; IL-1β effects showed greater similarity to prenatal stress effects on microglia...
February 16, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29448961/nuclear-receptor-agonist-driven-modification-of-inflammation-and-amyloid-pathology-enhances-and-sustains-cognitive-improvements-in-a-mouse-model-of-alzheimer-s-disease
#15
Brad T Casali, Erin G Reed-Geaghan, Gary E Landreth
BACKGROUND: Alzheimer's disease (AD) is a highly prevalent neurodegenerative disorder characterized by pathological hallmarks of beta-amyloid plaque deposits, tau pathology, inflammation, and cognitive decline. Treatment remains a clinical obstacle due to lack of effective therapeutics. Agonists targeting nuclear receptors, such as bexarotene, reversed cognitive deficits regardless of treatment duration and age in murine models of AD. While bexarotene demonstrated marked efficacy in decreasing plaque levels following short-term treatment, prolonged treatment did not modulate plaque burden...
February 15, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29439712/trovafloxacin-attenuates-neuroinflammation-and-improves-outcome-after-traumatic-brain-injury-in-mice
#16
Charu Garg, Joon Ho Seo, Jayalakshmi Ramachandran, Ji Meng Loh, Frances Calderon, Jorge E Contreras
BACKGROUND: Trovafloxacin is a broad-spectrum antibiotic, recently identified as an inhibitor of pannexin-1 (Panx1) channels. Panx1 channels are important conduits for the adenosine triphosphate (ATP) release from live and dying cells that enhances the inflammatory response of immune cells. Elevated extracellular levels ATP released upon injury activate purinergic pathways in inflammatory cells that promote migration, proliferation, phagocytosis, and apoptotic signals. Here, we tested whether trovafloxacin administration attenuates the neuroinflammatory response and improves outcomes after brain trauma...
February 13, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29433523/a-clinical-approach-to-new-onset-psychosis-associated-with-immune-dysregulation-the-concept-of-autoimmune-psychosis
#17
Souhel Najjar, Johann Steiner, Amanda Najjar, Karl Bechter
Growing data point to the overlap between psychosis and pathological processes associated with immunological dysregulation as well as inflammation. Notably, the recent discovery of antibodies against synaptic and neuronal cell membrane proteins such as anti-N-methyl-D-aspartate receptor provides more direct evidence of the etiological connection between autoimmunity and subsequent hazard of psychosis. Here, we advocate the use of term "autoimmune psychosis," as this term suggests that autoimmune disorders can masquerade as drug-resistant primary psychosis, and this subtype of psychosis has anatomical and immunological footprints in the brain, despite the frequent absence of structural abnormalities on conventional brain MRI...
February 13, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29433511/histamine-upregulates-the-expression-of-histamine-receptors-and-increases-the-neuroprotective-effect-of-astrocytes
#18
Jiawen Xu, Xiang Zhang, Qingqing Qian, Yiwei Wang, Hongquan Dong, Nana Li, Yanning Qian, Wenjie Jin
BACKGROUND: Astrocytes have attracted increasing attention over recent decades for their role in neuroinflammation. Histamine, a major aminergic brain neurotransmitter, has an important influence on the main activities of astrocytes, such as ion homeostasis, energy metabolism, and neurotransmitter clearance. However, little is known about the impact of histamine on astrocyte immunomodulatory function. METHODS: The expression of all known histamine receptor subtypes was examined in primary astrocytes...
February 13, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29426336/salidroside-provides-neuroprotection-by-modulating-microglial-polarization-after-cerebral-ischemia
#19
Xiangrong Liu, Shaohong Wen, Feng Yan, Kuan Liu, Liqiang Liu, Lei Wang, Shangfeng Zhao, Xunming Ji
BACKGROUND: Following stroke, microglia can be driven to the "classically activated" pro-inflammatory (M1) phenotype and the "alternatively activated" anti-inflammatory (M2) phenotype. Salidroside (SLDS) is known to inhibit inflammation and to possess protective effects in neurological diseases, but to date, the exact mechanisms involved in these processes after stroke have yet to be elucidated. The purpose of this study was to determine the effects of SLDS on neuroprotection and microglial polarization after stroke...
February 9, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29426327/porphyromonas-gingivalis-lipopolysaccharide-induces-cognitive-dysfunction-mediated-by-neuronal-inflammation-via-activation-of-the-tlr4-signaling-pathway-in-c57bl-6-mice
#20
Jing Zhang, Chunbo Yu, Xuan Zhang, Huiwen Chen, Jiachen Dong, Weili Lu, Zhongchen Song, Wei Zhou
BACKGROUND: Porphyromonas gingivalis lipopolysaccharide (P. gingivalis-LPS) is one of the major pathogenic factors of chronic periodontitis (CP). Few reports on the correlation between P. gingivalis-LPS and cognitive function exist. Thus, the present study aimed to investigate the effects of P. gingivalis-LPS on cognitive function and the associated underlying mechanism in C57BL/6 mice. METHODS: The C57BL/6 mice were injected with P. gingivalis-LPS (5 mg kg-1) either with or without Toll-like receptor 4 (TLR4) inhibitor (TAK-242, 5 mg kg-1)...
February 9, 2018: Journal of Neuroinflammation
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