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Journal of Neuroinflammation

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https://www.readbyqxmd.com/read/28532450/lps-induced-systemic-inflammation-reveals-an-immunomodulatory-role-for-the-prion-protein-at-the-blood-brain-interface
#1
Ø Salvesen, M R Reiten, A Espenes, M K Bakkebø, M A Tranulis, C Ersdal
BACKGROUND: The cellular prion protein (PrP(C)) is an evolutionary conserved protein abundantly expressed not only in the central nervous system but also peripherally including the immune system. A line of Norwegian dairy goats naturally devoid of PrP(C) (PRNP (Ter/Ter)) provides a novel model for studying PrP(C) physiology. METHODS: In order to explore putative roles for PrP(C) in acute inflammatory responses, we performed a lipopolysaccharide (LPS, Escherichia coli O26:B6) challenge of 16 goats (8 PRNP (+/+) and 8 PRNP (Ter/Ter)) and included 10 saline-treated controls (5 of each PRNP genotype)...
May 22, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28494768/inhibition-of-cd40-traf6-interactions-by-the-small-molecule-inhibitor-6877002-reduces-neuroinflammation
#2
Suzanne A B M Aarts, Tom T P Seijkens, Pascal J H Kusters, Susanne M A van der Pol, Barbara Zarzycka, Priscilla D A M Heijnen, Linda Beckers, Myrthe den Toom, Marion J J Gijbels, Louis Boon, Christian Weber, Helga E de Vries, Gerry A F Nicolaes, Christine D Dijkstra, Gijs Kooij, Esther Lutgens
BACKGROUND: The influx of leukocytes into the central nervous system (CNS) is a key hallmark of the chronic neuro-inflammatory disease multiple sclerosis (MS). Strategies that aim to inhibit leukocyte migration across the blood-brain barrier (BBB) are therefore regarded as promising therapeutic approaches to combat MS. As the CD40L-CD40 dyad signals via TNF receptor-associated factor 6 (TRAF6) in myeloid cells to induce inflammation and leukocyte trafficking, we explored the hypothesis that specific inhibition of CD40-TRAF6 interactions can ameliorate neuro-inflammation...
May 12, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28490373/thioredoxin-interacting-protein-links-endoplasmic-reticulum-stress-to-inflammatory-brain-injury-and-apoptosis-after-subarachnoid-haemorrhage
#3
Qing Zhao, Xudong Che, Hongxia Zhang, Pianpian Fan, Guanping Tan, Liu Liu, Dengzhi Jiang, Jun Zhao, Xiang Xiang, Yidan Liang, Xiaochuan Sun, Zhaohui He
BACKGROUND: Early brain injury (EBI) is considered a major contributor to the high morbidity and mortality associated with subarachnoid haemorrhage (SAH). Both of sterile inflammation and apoptosis are considered the important causes of EBI. Recently, it was confirmed that thioredoxin-interacting protein (TXNIP) not only participates in inflammatory amplification but also stimulates the apoptosis signalling cascade pathway. However, whether the effects of TXNIP influence the pathogenesis of SAH remains unclear...
May 11, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28486971/a-role-for-cathepsin-z-in-neuroinflammation-provides-mechanistic-support-for-an-epigenetic-risk-factor-in-multiple-sclerosis
#4
Euan R O Allan, Rhiannon I Campden, Benjamin W Ewanchuk, Pankaj Tailor, Dale R Balce, Neil T McKenna, Catherine J Greene, Amy L Warren, Thomas Reinheckel, Robin M Yates
BACKGROUND: Hypomethylation of the cathepsin Z locus has been proposed as an epigenetic risk factor for multiple sclerosis (MS). Cathepsin Z is a unique lysosomal cysteine cathepsin expressed primarily by antigen presenting cells. While cathepsin Z expression has been associated with neuroinflammatory disorders, a role for cathepsin Z in mediating neuroinflammation has not been previously established. METHODS: Experimental autoimmune encephalomyelitis (EAE) was induced in both wildtype mice and mice deficient in cathepsin Z...
May 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28486969/activation-of-p2x7-receptor-and-nlrp3-inflammasome-assembly-in-hippocampal-glial-cells-mediates-chronic-stress-induced-depressive-like-behaviors
#5
Na Yue, Huijie Huang, Xiaocang Zhu, Qiuqin Han, Yalin Wang, Bing Li, Qiong Liu, Gencheng Wu, Yuqiu Zhang, Jin Yu
BACKGROUND: In recent years, proinflammatory cytokine interleukin-1β (IL-1β) was considered to play a critical role in the pathogenesis of depression. In addition, P2X7 receptor (P2X7R), a member of the purinergic receptor family, which is predominantly present on microglia, as well as on astrocytes and neurons in lesser amounts in the central nervous system, was suggested to be involved in the processing and releasing of IL-1β. Here, we investigated the role of P2X7R in the pathogenesis of depression...
May 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28482852/retraction-note-to-increased-neuroinflammatory-and-arachidonic-acid-cascade-markers-and-reduced-synaptic-proteins-in-brain-of-hiv-1-transgenic-rats
#6
Jagadeesh Sridhara Rao, Hyung-Wook Kim, Matthew Kellom, Dede Greenstein, Mei Chen, Andrew David Kraft, Gaylia Jean Harry, Stanley Isaac Rapoport, Mireille Basselin
No abstract text is available yet for this article.
May 9, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28482909/characteristics-of-primary-rat-microglia-isolated-from-mixed-cultures-using-two-different-methods
#7
Li Lin, Rakhi Desai, Xiaoying Wang, Eng H Lo, Changhong Xing
BACKGROUND: Microglial cultures comprise a critically important model system for investigating inflammatory mechanisms in almost all CNS disorders. Mild trypsinization and shaking are the two most commonly used methods to isolate primary microglia from mixed glial cultures. In this study, we characterized and compared microglia obtained using these two methods. METHODS: Primary rat microglia cultures were prepared from cerebral cortices of 1-2-day-old neonatal Sprague-Dawley rats...
May 8, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28477623/sex-dependent-treatment-of-chronic-eae-with-partial-mhc-class-ii-constructs
#8
Gil Benedek, Priya Chaudhary, Roberto Meza-Romero, Evan Calkins, Gail Kent, Halina Offner, Dennis Bourdette, Arthur A Vandenbark
BACKGROUND: One of the main challenges in treating multiple sclerosis (MS) is reversing the effects of accumulated damage in the central nervous system (CNS) of progressive MS subjects. While most of the available drugs for MS subjects are anti-inflammatory and thus are limited to relapsing-remitting MS subjects, it is not clear to what extent their effects are capable of inducing axonal repair and remyelination in subjects with chronic MS. METHODS: A chronic model of experimental autoimmune encephalomyelitis (EAE) was used to evaluate the potency of partial MHC (pMHC) class II constructs in treating progressive EAE...
May 6, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28476157/microglia-amplify-inflammatory-activation-of-astrocytes-in-manganese-neurotoxicity
#9
Kelly S Kirkley, Katriana A Popichak, Maryam F Afzali, Marie E Legare, Ronald B Tjalkens
BACKGROUND: As the primary immune response cell in the central nervous system, microglia constantly monitor the microenvironment and respond rapidly to stress, infection, and injury, making them important modulators of neuroinflammatory responses. In diseases such as Parkinson's disease, Alzheimer's disease, multiple sclerosis, and human immunodeficiency virus-induced dementia, activation of microglia precedes astrogliosis and overt neuronal loss. Although microgliosis is implicated in manganese (Mn) neurotoxicity, the role of microglia and glial crosstalk in Mn-induced neurodegeneration is poorly understood...
May 5, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28468668/proteomic-anaysis-of-aged-microglia-shifts-in-transcription-bioenergetics-and-nutrient-response
#10
Antwoine Flowers, Harris Bell-Temin, Ahmad Jalloh, Stanley M Stevens, Paula C Bickford
BACKGROUND: Age is the primary risk factor for many diseases. As such, age is a critical co-factor for examination in order to understand the progression and potential intervention in disease progression. Studies examining both the phenotype and transcriptome of aged microglia demonstrated a propensity for the development of a pro-inflammatory phenotype. Less well studied is the concomitant blunting of anti-inflammatory aspects of microglial function with age which also impact plasticity and repair in the CNS...
May 3, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28468657/hsya-alleviates-secondary-neuronal-death-through-attenuating-oxidative-stress-inflammatory-response-and-neural-apoptosis-in-sd-rat-spinal-cord-compression-injury
#11
Jun-Peng Pei, Li-Hong Fan, Kai Nan, Jia Li, Xiao-Qian Dang, Kun-Zheng Wang
BACKGROUND: Hydroxysafflor yellow A (HSYA) is a major active component of yellow pigment extracted from safflowers; this compound possesses potent neuroprotective effects both in vitro and in vivo. However, underlying mechanism of HSYA is not fully elucidated. The present study investigated the protective effects of HSYA in rat spinal cord compression injury model and related mechanisms involved. METHODS: Sprague-Dawley rats were divided as Sham, Control, and HSYA groups (n = 30 per group)...
May 3, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28468634/kososan-a-kampo-medicine-prevents-a-social-avoidance-behavior-and-attenuates-neuroinflammation-in-socially-defeated-mice
#12
Naoki Ito, Eiji Hirose, Tatsuya Ishida, Atsushi Hori, Takayuki Nagai, Yoshinori Kobayashi, Hiroaki Kiyohara, Tetsuro Oikawa, Toshihiko Hanawa, Hiroshi Odaguchi
BACKGROUND: Kososan, a Kampo (traditional Japanese herbal) medicine, has been used for the therapy of depressive mood in humans. However, evidence for the antidepressant efficacy of kososan and potential mechanisms are lacking. Recently, it has been recognized that stress triggers neuroinflammation and suppresses adult neurogenesis, leading to depression and anxiety. Here, we examined whether kososan extract affected social behavior in mice exposed to chronic social defeat stress (CSDS), an animal model of prolonged psychosocial stress, and neuroinflammation induced by CSDS...
May 3, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28449688/yy-1224-a-terpene-trilactone-strengthened-ginkgo-biloba-attenuates-neurodegenerative-changes-induced-by-%C3%AE-amyloid-1-42-or-double-transgenic-overexpression-of-app-and-ps1-via-inhibition-of-cyclooxygenase-2
#13
Zheng-Yi Li, Yoon Hee Chung, Eun-Joo Shin, Duy-Khanh Dang, Ji Hoon Jeong, Sung Kwon Ko, Seung-Yeol Nah, Tae Gon Baik, Jin Hyeong Jhoo, Wei-Yi Ong, Toshitaka Nabeshima, Hyoung-Chun Kim
BACKGROUND: Ginkgo biloba has been reported to possess free radical-scavenging antioxidant activity and anti-inflammatory properties. In our pilot study, YY-1224, a terpene trilactone-strengthened extract of G. biloba, showed anti-inflammatory, neurotrophic, and antioxidant effects. RESULTS: We investigated the pharmacological potential of YY-1224 in β-amyloid (Aβ) (1-42)-induced memory impairment using cyclooxygenase-2 (COX-2) knockout (-/-) and APPswe/PS1dE9 transgenic (APP/PS1 Tg) mice...
April 27, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28446241/polyunsaturated-fatty-acid-receptors-gpr40-and-gpr120-are-expressed-in-the-hypothalamus-and-control-energy-homeostasis-and-inflammation
#14
Nathalia R V Dragano, Carina Solon, Albina F Ramalho, Rodrigo F de Moura, Daniela S Razolli, Elisabeth Christiansen, Carlos Azevedo, Trond Ulven, Licio A Velloso
BACKGROUND: The consumption of large amounts of dietary fats is one of the most important environmental factors contributing to the development of obesity and metabolic disorders. GPR120 and GPR40 are polyunsaturated fatty acid receptors that exert a number of systemic effects that are beneficial for metabolic and inflammatory diseases. Here, we evaluate the expression and potential role of hypothalamic GPR120 and GPR40 as targets for the treatment of obesity. METHODS: Male Swiss (6-weeks old), were fed with a high fat diet (HFD, 60% of kcal from fat) for 4 weeks...
April 26, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28446186/fingolimod-attenuates-experimental-autoimmune-neuritis-and-contributes-to-schwann-cell-mediated-axonal-protection
#15
Björn Ambrosius, Kalliopi Pitarokoili, Lisa Schrewe, Xiomara Pedreiturria, Jeremias Motte, Ralf Gold
BACKGROUND: Fingolimod, a sphingosine-1-phosphate receptor modulator with well-described immunomodulatory properties involving peripheral immune cell trafficking, was the first oral agent approved for the treatment of relapsing remitting multiple sclerosis. Analogous immunomodulatory treatment options for chronic peripheral autoimmune neuropathies are lacking. METHODS: We tested fingolimod in the animal model of experimental autoimmune neuritis in Lewis rat. Six to eight-week-old female rats were immunized with P2 peptide and from this day on treated with fingolimod...
April 26, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28446179/glycam1-negatively-regulates-monocyte-entry-into-the-optic-nerve-head-and-contributes-to-radiation-based-protection-in-glaucoma
#16
Pete A Williams, Catherine E Braine, Nicole E Foxworth, Kelly E Cochran, Simon W M John
BACKGROUND: We previously reported a profound long-term neuroprotection subsequent to a single radiation-therapy in the DBA/2J mouse model of glaucoma. This neuroprotection prevents entry of monocyte-like immune cells into the optic nerve head during glaucoma. Gene expression studies in radiation-treated mice implicated Glycam1 in this protection. Glycam1 encodes a proteoglycan ligand for L-selectin and is an excellent candidate to modulate immune cell entry into the eye. Here, we experimentally test the hypothesis that radiation-induced over-expression of Glycam1 is a key component of the neuroprotection...
April 26, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28438224/early-strong-intrathecal-inflammation-in-cerebellar-type-multiple-system-atrophy-by-cerebrospinal-fluid-cytokine-chemokine-profiles-a-case-control-study
#17
Ryo Yamasaki, Hiroo Yamaguchi, Takuya Matsushita, Takayuki Fujii, Akio Hiwatashi, Jun-Ichi Kira
BACKGROUND: The pathology of multiple system atrophy cerebellar-type (MSA-C) includes glial inflammation; however, cerebrospinal fluid (CSF) inflammatory cytokine profiles have not been investigated. In this study, we determined CSF cytokine/chemokine/growth factor profiles in MSA-C and compared them with those in hereditary spinocerebellar ataxia (SCA). METHODS: We collected clinical data and CSF from 20 MSA-C patients, 12 hereditary SCA patients, and 15 patients with other non-inflammatory neurological diseases (OND), and measured 27 cytokines/chemokines/growth factors using a multiplexed fluorescent bead-based immunoassay...
April 24, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28438174/exercise-attenuates-neurological-deficits-by-stimulating-a-critical-hsp70-nf-%C3%AE%C2%BAb-il-6-synapsin-i-axis-in-traumatic-brain-injury-rats
#18
Chung-Ching Chio, Hung-Jung Lin, Yu-Feng Tian, Yu-Chieh Chen, Mao-Tsun Lin, Cheng-Hsien Lin, Ching-Ping Chang, Chien-Chin Hsu
BACKGROUND: Despite previous evidence for a potent inflammatory response after a traumatic brain injury (TBI), it is unknown whether exercise preconditioning (EP) improves outcomes after a TBI by modulating inflammatory responses. METHODS: We performed quantitative real-time PCR (qPCR) to quantify the genes encoding 84 cytokines and chemokines in the peripheral blood and used ELISA to determine both the cerebral and blood levels of interleukin-6 (IL-6). We also performed the chromatin immunoprecipitation (ChIP) assay to evaluate the extent of nuclear factor kappa-B (NF-κB) binding to the DNA elements in the IL-6 promoter regions...
April 24, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28427412/lack-of-interleukin-13-receptor-%C3%AE-1-delays-the-loss-of-dopaminergic-neurons-during-chronic-stress
#19
Simone Mori, Shuei Sugama, William Nguyen, Tatiana Michel, M Germana Sanna, Manuel Sanchez-Alavez, Rigo Cintron-Colon, Gianluca Moroncini, Yoshihiko Kakinuma, Pamela Maher, Bruno Conti
BACKGROUND: The majority of Parkinson's disease (PD) cases are sporadic and idiopathic suggesting that this neurodegenerative disorder is the result of both environmental and genetic factors. Stress and neuroinflammation are among the factors being investigated for their possible contributions to PD. Experiments in rodents showed that severe chronic stress can reduce the number of dopaminergic neurons in the substantia nigra pars compacta (SNc); the same cells that are lost in PD. These actions are at least in part mediated by increased oxidative stress...
April 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28427424/microglial-depletion-alters-the-brain-neuroimmune-response-to-acute-binge-ethanol-withdrawal
#20
T Jordan Walter, Fulton T Crews
BACKGROUND: Recent studies have implicated microglia-the resident immune cells of the brain-in the pathophysiology of alcoholism. Indeed, post-mortem alcoholic brains show increased microglial markers and increased immune gene expression; however, the effects of ethanol on microglial functioning and how this impacts the brain remain unclear. In this present study, we investigate the effects of acute binge ethanol on microglia and how microglial depletion changes the brain neuroimmune response to acute binge ethanol withdrawal...
April 20, 2017: Journal of Neuroinflammation
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