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Alicja Kalinowska-Łyszczarz, Mikołaj A Pawlak, Aleksandra Wyciszkiewicz, Katarzyna Pawlak-Buś, Piotr Leszczyński, Mariusz Puszczewicz, Włodzimierz Paprzycki, Wojciech Kozubski, Sławomir Michalak
OBJECTIVE: Central nervous system (CNS) involvement in systemic lupus erythematosus (SLE) remains poorly understood. Damage within the CNS is driven by the autoimmune response; however, immunopathophysiology of neuropsychiatric (NP) SLE is multifactorial. Immune cell neurotrophin production could be neuroprotective against autoimmunity-driven CNS damage, as has been shown in multiple sclerosis. The aim of this study was to establish whether immune cell neurotrophin production is associated with damage severity in NPSLE...
March 14, 2018: Neuroimmunomodulation
Andrea Cecilia Parrado, Luciana Soledad Salaverry, Franco Mauricio Mangone, Carolina Eugenia Apicella, Teresa Gentile, Andrea Canellada, Estela Beatriz Rey-Roldán
OBJECTIVE: Dopamine is an immunomodulatory neurotransmitter. In the skin, keratinocytes and macrophages produce proinflammatory cytokines and metalloproteinases (MMPs) which participate in wound healing. These cells have a catecholaminergic system that modulates skin pathophysiologic processes. We have demonstrated that dopamine modulates cytokine production in keratinocytes via dopaminergic and adrenergic receptors (ARs). The aim of this study was to evaluate the effect of dopamine and its interaction with β-ARs in human HaCaT keratinocytes and THP-1 macrophages...
March 7, 2018: Neuroimmunomodulation
Esther Ganelin Cohen, Hanna Bessler, Meir Djaldetti, Rachel Straussberg
Prompted by findings suggesting immune instability in infantile bilateral striatal necrosis (IBSN), we evaluated levels of proinflammatory (tumor necrosis factor α, interleukin [IL]-1β, IL-6, interferon [IFN]γ) and anti-inflammatory (IL-10 and IL-1ra) cytokines produced by peripheral blood mononuclear cells (PBMC) from 6 children with IBSN and 11 age-matched controls. Compared to controls, non-stimulated PBMC from the IBSN group produced a significantly lower level of IL-1ra (by 38%; p < 0.001) and significantly lower levels of TNFα, IL-1β, and IFNγ (by 36% [p < 0...
March 6, 2018: Neuroimmunomodulation
Ruei-An Chen, Tiao-Lai Huang, Kai-Wei Huang, Yi-Yung Hung
BACKGROUND: Major depressive disorder has been shown to be associated with inflammation and the dysregulation of innate immune responses. Previously, we showed an inverse correlation between the severity of depression and level of TNFAIP3 mRNA expression. The present study further evaluated the association between TNFAIP3 mRNA expression level and symptoms of major depressive disorder (MDD) in 91 patients (20 men and 71 women). METHODS: The relationships between subscores on the 17-item Hamilton Depression Rating Scale (HAMD-17) and TNFAIP3 mRNA levels were assessed by multiple linear regression...
February 27, 2018: Neuroimmunomodulation
Mina Hosseini, Behrouz Robat-Jazi, Vahid Shaygannejad, Shahriar Naffisi, Omid Mirmossayeb, Abbas Rezaei, Marjan Mansourian, Nafiseh Esmaeil
OBJECTIVE: Myasthenia gravis (MG) is an autoimmune disease mediated by autoantibodies against the neuromuscular junction. The thymus has an important role in the pathogenesis of MG because most patients have thymic pathology, and thymectomy (TE) can reduce the severity of the disease. METHODS: In this study, the frequency of Th17 and Tc17 cells was studied in 12 MG patients (pre-TE and 6 months post-TE) and in 12 healthy controls (HC). RESULTS: The frequency of Tc17 cells in the pre-TE patients was significantly higher than in the HC (p < 0...
February 8, 2018: Neuroimmunomodulation
Yaqing Shu, Bing Qin, Yue Xu, Xiaobo Sun, Zheng Chen, Jia Wang, Lisheng Peng, Wei Qiu, Zhengqi Lu, Aimin Wu
OBJECTIVE: Lipid metabolism has been implicated in autoimmune disorders, but its relationship with anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is unclear. This study examined the association of serum lipids with anti-NMDAR encephalitis. METHODS: Serum lipid profiles and C-reactive protein (CRP) were evaluated in 68 patients with anti-NMDAR encephalitis, and 68 age- and sex-matched healthy controls (CTLs). Follow-up evaluations were conducted 3 months after admission in 32 of the 68 patients...
February 1, 2018: Neuroimmunomodulation
Nikos Schizas, Sharn Perry, Brittmarie Andersson, Carolina Wählby, Klas Kullander, Nils P Hailer
Secondary damage following spinal cord injury (SCI) induces neuronal damage through inflammatory and excitotoxic pathways. We hypothesized that the interleukin-1 receptor antagonist (IL1RA) protects neuronal populations and suppresses apoptosis and gliosis after injury. Spinal cord slice cultures (SCSCs) were subjected to excitotoxic injury with N-methyl-D-aspartate (NMDA) and treated with IL1RA. Immunohistochemistry for neuronal nuclei (NeuN), MacII, glial fibrillary acidic protein, and TdT-mediated dUTP nick end labelling stains were used to evaluate neuronal survival, glial activation, and apoptosis...
January 26, 2018: Neuroimmunomodulation
Luis Miguel Saavedra, Bertha Fenton Navarro, Luz Torner
OBJECTIVE: Early life stress (ELS) increases the vulnerability to developing psychopathological disorders in adulthood that are accompanied by brain inflammatory processes. However, it is not known how a combined double hit (stress and immune) at an early age affects the response of the neuroimmune system. Here we investigated the effect of periodic maternal separation (MS) followed by administration of lipopolysaccharide (LPS) on glial cells in the CA3 region and hilus of the hippocampus and on cytokine release on postnatal day (PN) 15...
January 13, 2018: Neuroimmunomodulation
Leila Maria Guissoni Campos, Rogerio Leone Buchaim, Nathani Cristina da Silva, Caio Sergio Galina Spilla, Alessandre Hataka, Luciana Pinato
OBJECTIVE: The clock genes Period (per) 1 and 2 are essential components in the generation and adjustment of biological circadian rhythms by the suprachiasmatic nucleus (SCN). Both genes are also rhythmically present in extrahypothalamic areas such as the hippocampus and cerebellum, considered subordinate oscillators. Several pathological conditions alter rhythmic biological phenomena, but the mechanisms behind these changes involving the clock genes are not well defined. The current study investigated changes in PER1 and PER2 immunoreactivity in the SCN, hippocampus, and cerebellum in a neuroinflammation model...
January 5, 2018: Neuroimmunomodulation
Dongsoo Kim, Chang Yul Kim, Hyojin Koo, Yong Heo, Kicheol Cheon
OBJECTIVE: Predator stress, social defeat stress, and fear conditioning animal models have been applied to investigate combat-related posttraumatic stress disorder (PTSD). However, no animal model psychopharmacological studies have investigated prevention of somatization of increased mental stress and fatigue at the beginning of combat exposure. This study utilized a novel animal model simulating the beginning of combat exposure that aided specification of a set of biomarkers. METHODS: Psychological stress was induced by both inescapable electric foot shock and noise stimuli...
November 22, 2017: Neuroimmunomodulation
Rosalía Hernández-Cervantes, Mónica Méndez-Díaz, Óscar Prospéro-García, Jorge Morales-Montor
Although the endocannabinoid system (ECS) is involved in the regulation of several physiological processes, including sleep and the immune response, its role during infections has not been fully studied. It is well known that the use of this drug increases susceptibility to infections because of the impact on the modulation of the immune system. Concerning the medicinal or recreational use of marijuana, its influence on the course of an infection, whether this has been caused by bacteria, viruses, parasites, and to a lesser degree, fungi, has been reported...
November 18, 2017: Neuroimmunomodulation
Marjan Aghajani, Mohammad Reza Vaez Mahdavi, Mohsen Khalili Najafabadi, Tooba Ghazanfari, Fatemeh Moradi, Ravieh Golchoobian, Hasan Askari, Nima Sanadgol, Ehsan Kazemi Moghaddam
OBJECTIVE(S): We aimed to show that the immune system is sensitive to the detrimental effects of inequality and social injustice, and splenic vulnerability to apoptosis may also increase. METHODS: In order of better determination of immune responses to chronic social stress, we implemented food deprivation, food intake inequality, and unstable social status (a change of cage-mate every 3 days) for a period of 14 days in 60 male Balb/c mice. At the end of this stress period, nitric oxide (NO) production by peritoneal adherent cells and the serum concentration of corticosterone were measured...
November 17, 2017: Neuroimmunomodulation
Jing Guan, Beibei Yang, Yi Fan, Ji Zhang
OBJECTIVE: Epidemiological studies have shown that women of reproductive age have much less possibility of developing Parkinson disease (PD) than men. The beneficial effect of estrogen also has been well-described in both culture and animal models of PD. G protein-coupled estrogen receptor (GPER) is a membrane-associated estrogen receptor, and displayed a neuroprotective role in a mouse model of PD. Since GPER is highly expressed in microglia, we speculate that GPER mediates the neuroprotective function of estradiol through suppressing the neuroinflammation of PD...
August 16, 2017: Neuroimmunomodulation
Fazilet Dede, Sabriye Karadenizli, Özgür Doğa Özsoy, Fatma Ceyla Eraldemir, Deniz Şahin, Nurbay Ateş
OBJECTIVE: It has been suggested that the adenosinergic system and cytokines play a role in the pathogenesis of epilepsy. Although the role of the adenosinergic system in the modulation of seizure activity is well known, the mechanism of this modulation needs to be described in detail. We performed this study to determine the contribution of the proinflammatory cytokines to the generalized seizure activity during adenosine and caffeine treatment. METHODS: We induced generalized tonic-clonic seizures with the administration of 60 mg/kg pentylenetetrazole (PTZ) in male Wistar Albino rats...
August 10, 2017: Neuroimmunomodulation
Rafael O Margatho, Cristina de O Massoco, Atilio S Calefi, Daniel S G Cruz, Thaisa M Sandini, Glaucie Jussilane Alves, Jorge C Florio, João Palermo-Neto
OBJECTIVES: Cohabitation with Ehrlich tumor-bearing (ETB) mice induced behavioral, neurochemical, hormonal, and immune effects in the conspecifics as a consequence of stress-induced activation of the sympathetic nervous system (SNS) with catecholamine release. In the current study, the nonspecific β-AR blocker d,l-propranolol and the specific β2-AR blocker ICI-118.551 were employed as pharmacological tools to assess the extent to which catecholamines participated in the effects induced by cohabitation with ETB mice...
August 9, 2017: Neuroimmunomodulation
Pei-Jung Wu, Yun-Fen Hung, Hsin-Yu Liu, Yi-Ping Hsueh
OBJECTIVE: Inflammation is clearly associated with Alzheimer disease (AD). Knockout of Nlrp3, a gene encoding an inflammasome sensor, has been shown to ameliorate AD pathology in a mouse model. Because AIM2 is the most dominant inflammasome sensor expressed in mouse brains, here we investigate whether Aim2 deletion also influences the phenotype of a 5XFAD AD mouse model. METHODS: Quantitative RT-PCR, immunostaining, immunoblotting, and behavioral analyses were applied to compare wild-type, Aim2-/-, 5XFAD, and Aim2-/-;5XFAD mice...
June 16, 2017: Neuroimmunomodulation
Aytül Önal, Deniz Coşkunsever, Fatma Gül Çelenk, Recep Selim Şentürk, Selvi Nalbant, Sibel Ülker Göksel
OBJECTIVE: Inflammatory and immune mechanisms play important roles in the pathogenesis of neuropathic pain. Ceftiofur, a third-generation cephalosporin, has anti-inflammatory effects by inhibiting tumor necrosis factor (TNF)-α, interleukin (IL)-1β, nuclear factor (NF)-κB, and mitogen-activated protein kinase (MAPK) signaling. This study aimed to investigate the effect of ceftiofur on hyperalgesia and allodynia in neuropathic rats and to define the possible contribution of immune mechanisms to this effect...
June 15, 2017: Neuroimmunomodulation
Rainer H Straub, Jaqueline Detert, René Dziurla, Ingo Fietze, Peter-Andreas Loeschmann, Gerd R Burmester, Frank Buttgereit
Rheumatoid arthritis (RA) patients have sleep problems, and inflammation influences sleep. We demonstrated that sleep quality improves during intensified treatment with methotrexate (MTX) or etanercept (ETA). Since the hypothalamic-pituitary-adrenal (HPA) axis is involved in sleep regulation, this study investigated the interrelation between sleep parameters, inflammation as objectified by C-reactive protein (CRP), and serum cortisol and adrenocorticotropic hormone (ACTH) levels. Thirty-one eligible patients (disease activity score, DAS28CRP ≥3...
May 24, 2017: Neuroimmunomodulation
Tiberiade Mendes-Lima, Thiago Berti Kirsten, Luciano Freitas Felicio, Elizabeth Teodorov, Nicolle Queiroz-Hazarbassanov, Maria Martha Bernardi
OBJECTIVES: A common problem during the postpartum period and during lactation is being affected by infection due to Gram-negative bacteria. In this situation, a sick mother needs to choose between caring for her pups or the need for survival. This study analyzed the effects of lipopolysaccharide (LPS)-induced sickness behavior on selection between maternal behavior (MB) and predatory behavior (PB) in lactating rats. To assess the LPS-induced sickness behavior, the plasma tumor necrosis factor-α (TNF-α) levels were measured...
May 6, 2017: Neuroimmunomodulation
Vanessa Rodrigues Coelho, Cassiana Macagnan Viau, Renata Bartolomeu Staub, Marcele Silva De Souza, Pricila Pflüger, Gabriela Gregory Regner, Patrícia Pereira, Jenifer Saffi
OBJECTIVE: The present study evaluated the ability of rosmarinic acid (RA) to inhibit microglia activation induced by lipopolysaccharide (LPS) in the N9 murine microglial cell line, and investigated the putative mechanisms involved in this process. METHODS: In all tests, N9 murine microglial cells were pretreated with RA (0.1, 1.0, and 10 μM) for 20 h and exposed to LPS (1 μM/mL) for 4 h. Cell viability was measured by Trypan blue exclusion assay. Flow cytometry was used to detect reactive oxygen species (ROS), quantify cleaved caspase-3, and analyze the mitochondrial electrochemical potential...
2017: Neuroimmunomodulation
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