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Neuroinflammation

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https://www.readbyqxmd.com/read/27906023/surface-area-dependence-of-gas-particle-interactions-influences-pulmonary-and-neuroinflammatory-outcomes
#1
Christina R Tyler, Katherine E Zychowski, Bethany N Sanchez, Valeria Rivero, Selita Lucas, Guy Herbert, June Liu, Hammad Irshad, Jacob D McDonald, Barry E Bleske, Matthew J Campen
BACKGROUND: Deleterious consequences of exposure to traffic emissions may derive from interactions between carbonaceous particulate matter (PM) and gaseous components in a manner that is dependent on the surface area or complexity of the particles. To determine the validity of this hypothesis, we examined pulmonary and neurological inflammatory outcomes in C57BL/6 and apolipoprotein E knockout (ApoE(-/-)) male mice after acute and chronic exposure to vehicle engine-derived particulate matter, generated as ultrafine (UFP) and fine (FP) sizes, with additional exposures using UFP or FP combined with gaseous copollutants derived from fresh gasoline and diesel emissions, labeled as UFP + G and FP + G...
December 1, 2016: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/27905881/bone-morphogenetic-protein-2-mediated-pain-and-inflammation-in-a-rat-model-of-posterolateral-arthrodesis
#2
Kendall Mitchell, Jill P Shah, Clifton L Dalgard, Lyubov V Tsytsikova, Ashley C Tipton, Anton E Dmitriev, Aviva J Symes
BACKGROUND: Bone morphogenetic protein-2 (BMP-2) is a pleiotropic, secreted molecule with diverse effects. The potent ability of BMP-2 to stimulate bone growth prompted its widespread clinical use for arthrodesis (spine fusion). However, elevated post-operative pain in patients treated with BMP-2 has been increasingly reported. Determining whether BMP-2 induces pain directly or whether it induces neuroinflammation, which could lower the threshold for pain, is important for developing therapeutic interventions...
December 1, 2016: BMC Neuroscience
https://www.readbyqxmd.com/read/27904484/drug-and-cell-based-therapies-for-targeting-neuroinflammation-in-traumatic-brain-injury
#3
Sussannah Kaelber, Paolina Pantcheva, Cesar V Borlongan
No abstract text is available yet for this article.
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27903802/a-protective-role-for-il-1-signaling-during-mouse-adenovirus-type-1-induced-encephalitis
#4
Luiza A Castro-Jorge, Carla Pretto, Asa Smith, Oded Foreman, Kelly E Carnahan, Katherine R Spindler
: IL-1β, an inflammatory cytokine and IL-1 receptor ligand, has diverse activities in the brain. We examined whether IL-1 signaling contributes to the encephalitis observed in mouse adenovirus type 1 (MAV-1) infection, using mice lacking the IL-1 receptor, Il1r1(-/-) Il1r1(-/-) mice had lower survival, higher disruption of the blood-brain barrier (BBB), higher brain viral loads, and higher brain inflammatory cytokines and chemokines than control C57BL/6 mice. We also examined infections of mice defective in IL-1β production (Pycard(-/-)mice) and mice defective in trafficking of TLRs to the endosome (Unc93b1(-/-) mice)...
November 30, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27903745/inhibiting-microglia-expansion-prevents-diet-induced-hypothalamic-and-peripheral-inflammation
#5
Caroline André, Omar Guzman-Quevedo, Charlotte Rey, Julie Rémus-Borel, Samantha Clark, Ashley Castellanos-Jankiewicz, Elodie Ladeveze, Thierry Leste-Lasserre, Agnes Nadjar, Djoher Nora Abrous, Sophie Laye, Daniela Cota
Cell proliferation and neuroinflammation in the adult hypothalamus may contribute to the pathogenesis of obesity. Here we tested whether the intertwining of these two processes has a role in the metabolic changes caused by three weeks of saturated high-fat diet (HFD) consumption.As compared to chow, HFD-fed mice rapidly increased body weight and fat mass, and specifically showed increased microglia number in the arcuate nucleus (ARC) of the hypothalamus. Microglia expansion required the adequate presence of fats and carbohydrates in the diet, since feeding mice a very high-fat, very low-carbohydrate diet did not affect cell proliferation...
November 30, 2016: Diabetes
https://www.readbyqxmd.com/read/27903275/cell-cycle-inhibition-reduces-inflammatory-responses-neuronal-loss-and-cognitive-deficits-induced-by-hypobaria-exposure-following-traumatic-brain-injury
#6
Jacob W Skovira, Junfang Wu, Jessica J Matyas, Alok Kumar, Marie Hanscom, Shruti V Kabadi, Raymond Fang, Alan I Faden
BACKGROUND: Traumatic brain injury (TBI) patients in military settings can be exposed to prolonged periods of hypobaria (HB) during aeromedical evacuation. Hypobaric exposure, even with supplemental oxygen to prevent hypoxia, worsens outcome after experimental TBI, in part by increasing neuroinflammation. Cell cycle activation (CCA) after TBI has been implicated as a mechanism contributing to both post-traumatic cell death and neuroinflammation. Here, we examined whether hypobaric exposure in rats subjected to TBI increases CCA and microglial activation in the brain, as compared to TBI alone, and to evaluate the ability of a cyclin-dependent kinase (CDK) inhibitor (CR8) to reduce such changes and improve behavioral outcomes...
December 1, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27903224/evaluation-on-monocyte-mediated-delivery-of-a-therapeutic-gene-into-the-inflamed-brain
#7
Hsin-I Tong, Wen Kang, Guangzhou Zhou, Min Liu, Yingli Shi, Yuanan Lu
This study was aimed to explore the potential of a non-invasive monocytes-based delivery system to transport therapeutic genes into the diseased brain. The study was conducted by first establishing the optimized conditions for lentiviral vector (LV)-mediated gene transfer into freshly isolated monocytes, followed by investigating the inflamed-brain homing efficiency and in vivo cell-mediated transgene expression by carrier monocytes in a mouse model with acute subregional neuroinflammation. Using a newly optimized spin-infection method, up to 35% of freshly isolated monocytes were successfully transduced with the LV system DHIV-101 at M...
November 18, 2016: Current Gene Therapy
https://www.readbyqxmd.com/read/27901327/stem-cell-therapy-for-sequestering-neuroinflammation-in-traumatic-brain-injury-an-update-on-exosome-targeting-to-the-spleen
#8
Marci G Crowley, Michael G Liska, Cesar V Borlongan
Traumatic brain injury (TBI), manifests with acute and chronic cell death pathways leading to initial impacted injury and subsequent neurodegeneration. In particular, the secondary cell death, plagued by a massive and lingering neuroinflammatory response, contributes significantly to worsening outcomes of the progressive TBI pathology. Fortunately, neuroinflammation also provides an opportunity for therapeutic interventions. Limited treatment options currently exist for the disease, but stem cell-based therapies offer promise in promoting neuroprotection and neuroregeneration by mitigating central neuroinflammation as well as modulating peripheral inflammation via the spleen...
November 30, 2016: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/27898171/hormesis-cellular-stress-response-and-neuroinflammation-in-schizophrenia-early-onset-versus-late-onset-state
#9
REVIEW
Vittorio Calabrese, James Giordano, Rosalia Crupi, Rosanna Di Paola, Martino Ruggieri, Rio Bianchini, Maria Laura Ontario, Salvatore Cuzzocrea, Edward J Calabrese
Abnormal redox homeostasis and oxidative stress have been proposed to play a role in the etiology of several neuropsychiatric spectrum disorders. Emerging interest has recently focused on markers of oxidative stress and neuroinflammation in schizophrenic spectrum disorders, at least in particular subgroups of patients. Altered expression of genes related to oxidative stress, oxidative damage to DNA, protein and lipids, as well as reduced glutathione levels in central and peripheral tissues could act synergistically, and contribute to the course of the disease...
November 29, 2016: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/27896574/cognitive-function-in-early-hiv-infection
#10
Aanchal Prakash, Jue Hou, Lei Liu, Yi Gao, Casey Kettering, Ann B Ragin
This study aimed to examine cognitive function in acute/early HIV infection over the subsequent 2 years. Fifty-six HIV+ subjects and 21 seronegative participants of the Chicago Early HIV Infection Study were evaluated using a comprehensive neuropsychological assessment at study enrollment and at 2-year follow-up. Cognitive performance measures were compared in the groups using t tests and mixed-effect models. Patterns of relationship with clinical measures were determined between cognitive function and clinical status markers using Spearman's correlations...
November 28, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27895978/cytokines-and-cytokine-receptors-involved-in-the-pathogenesis-of-alzheimer-s-disease
#11
Tomone Nagae, Kiho Araki, Yuki Shimoda, Lucia I Sue, Thomas G Beach, Yoshihiro Konishi
Inflammatory mechanisms are implicated in the pathology of Alzheimer's disease (AD). However, it is unclear whether inflammatory alterations are a cause or consequence of neurodegeneration leading to dementia. Clarifying this issue would provide valuable insight into the early diagnosis and therapeutic management of AD. To address this, we compared the mRNA expression profiles of cytokines in the brains of AD patients with "non-demented individuals with AD pathology" and non-demented healthy control (ND) individuals...
August 2016: Journal of Clinical & Cellular Immunology
https://www.readbyqxmd.com/read/27895548/a-novel-microfluidic-cell-co-culture-platform-for-the-study-of-the-molecular-mechanisms-of-parkinson-s-disease-and-other-synucleinopathies
#12
João T S Fernandes, Oldriska Chutna, Virginia Chu, João P Conde, Tiago F Outeiro
Although, the precise molecular mechanisms underlying Parkinson's disease (PD) are still elusive, it is now known that spreading of alpha-synuclein (aSyn) pathology and neuroinflammation are important players in disease progression. Here, we developed a novel microfluidic cell-culture platform for studying the communication between two different cell populations, a process of critical importance not only in PD but also in many biological processes. The integration of micro-valves in the device enabled us to control fluid routing, cellular microenvironments, and to simulate paracrine signaling...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27895165/rats-with-a-missense-mutation-in-atm-display-neuroinflammation-and-neurodegeneration-subsequent-to-accumulation-of-cytosolic-dna-following-unrepaired-dna-damage
#13
Hazel Quek, John Luff, KaGeen Cheung, Sergei Kozlov, Magtouf Gatei, C Soon Lee, Mark C Bellingham, Peter G Noakes, Yi Chieh Lim, Nigel L Barnett, Steven Dingwall, Ernst Wolvetang, Tomoji Mashimo, Tara L Roberts, Martin F Lavin
Mutations in the ataxia-telangiectasia (A-T)-mutated (ATM) gene give rise to the human genetic disorder A-T, characterized by immunodeficiency, cancer predisposition, and neurodegeneration. Whereas a series of animal models recapitulate much of the A-T phenotype, they fail to present with ataxia or neurodegeneration. We describe here the generation of an Atm missense mutant [amino acid change of leucine (L) to proline (P) at position 2262 (L2262P)] rat by intracytoplasmic injection (ICSI) of mutant sperm into oocytes...
November 28, 2016: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/27894304/brain-inflammation-is-accompanied-by-peripheral-inflammation-in-cstb-mice-a-model-for-progressive-myoclonus-epilepsy
#14
Olesya Okuneva, Zhilin Li, Inken Körber, Saara Tegelberg, Tarja Joensuu, Li Tian, Anna-Elina Lehesjoki
Progressive myoclonus epilepsy of Unverricht-Lundborg type (EPM1) is an autosomal recessively inherited childhood-onset neurodegenerative disorder, characterized by myoclonus, seizures, and ataxia. Mutations in the cystatin B gene (CSTB) underlie EPM1. The CSTB-deficient (Cstb (-/-) ) mouse model recapitulates key features of EPM1, including myoclonic seizures. The mice show early microglial activation that precedes seizure onset and neuronal loss and leads to neuroinflammation. We here characterized the inflammatory phenotype of Cstb (-/-) mice in more detail...
November 28, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27893782/beneficial-effects-of-metformin-and-or-salicylate-on-palmitate-or-tnf%C3%AE-induced-neuroinflammatory-marker-and-neuropeptide-gene-regulation-in-immortalized-npy-agrp-neurons
#15
Wenqing Ye, Ernesto H Ramos, Brian C Wong, Denise D Belsham
Neuropeptide Y (NPY)/Agouti-related peptide (AgRP)-expressing neurons in the hypothalamus induce feeding and decrease energy expenditure. With consumption of a diet high in fat, there is an increase in circulating saturated free fatty acids, including palmitate, leading to the development of neuroinflammation and secretion of cytokines, such as TNFα, and in turn activation of the canonical IKKβ/NFκB cascade. We describe a model of palmitate- and TNFα-induced neuroinflammation in a functionally characterized, immortalized NPY/AgRP-expressing cell model, mHypoE-46, to study whether the anti-diabetic metformin alone or in combination with the anti-inflammatory agent salicylate can ameliorate these detrimental effects...
2016: PloS One
https://www.readbyqxmd.com/read/27893460/tgf-%C3%AE-1-modulates-microglial-phenotype-and-promotes-recovery-after-intracerebral-hemorrhage
#16
Roslyn A Taylor, Che-Feng Chang, Brittany A Goods, Matthew D Hammond, Brian Mac Grory, Youxi Ai, Arthur F Steinschneider, Stephen C Renfroe, Michael H Askenase, Louise D McCullough, Scott E Kasner, Michael T Mullen, David A Hafler, J Christopher Love, Lauren H Sansing
Intracerebral hemorrhage (ICH) is a devastating form of stroke that results from the rupture of a blood vessel in the brain, leading to a mass of blood within the brain parenchyma. The injury causes a rapid inflammatory reaction that includes activation of the tissue-resident microglia and recruitment of blood-derived macrophages and other leukocytes. In this work, we investigated the specific responses of microglia following ICH with the aim of identifying pathways that may aid in recovery after brain injury...
November 28, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27893434/neuroinflammatory-and-cognitive-consequences-of-combined-radiation-and-immunotherapy-in-a-novel-preclinical-model
#17
Gwendolyn J McGinnis, David Friedman, Kristina H Young, Eileen Ruth S Torres, Charles R Thomas, Michael J Gough, Jacob Raber
BACKGROUND: Cancer patients often report behavioral and cognitive changes following cancer treatment. These effects can be seen in patients who have not yet received treatment or have received only peripheral (non-brain) irradiation. Novel treatments combining radiotherapy (RT) and immunotherapy (IT) demonstrate remarkable efficacy with respect to tumor outcomes by enhancing the proinflammatory environment in the tumor. However, a proinflammatory environment in the brain mediates cognitive impairments in other neurological disorders and may affect brain function in cancer patients receiving these novel treatments...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27892518/brain-microbiota-disruption-within-inflammatory-demyelinating-lesions-in-multiple-sclerosis
#18
W G Branton, J Q Lu, M G Surette, R A Holt, J Lind, J D Laman, C Power
Microbial communities reside in healthy tissues but are often disrupted during disease. Bacterial genomes and proteins are detected in brains from humans, nonhuman primates, rodents and other species in the absence of neurological disease. We investigated the composition and abundance of microbiota in frozen and fixed autopsied brain samples from patients with multiple sclerosis (MS) and age- and sex-matched nonMS patients as controls, using neuropathological, molecular and bioinformatics tools. 16s rRNA sequencing revealed Proteobacteria to be the dominant phylum with restricted diversity in cerebral white matter (WM) from MS compared to nonMS patients...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27891521/food-derived-natural-compounds-for-pain-relief-in-neuropathic-pain
#19
REVIEW
Eun Yeong Lim, Yun Tai Kim
Neuropathic pain, defined as pain caused by a lesion or disease of the somatosensory nervous system, is characterized by dysesthesia, hyperalgesia, and allodynia. The number of patients with this type of pain has increased rapidly in recent years. Yet, available neuropathic pain medicines have undesired side effects, such as tolerance and physical dependence, and do not fully alleviate the pain. The mechanisms of neuropathic pain are still not fully understood. Injury causes inflammation and immune responses and changed expression and activity of receptors and ion channels in peripheral nerve terminals...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27890830/time-course-of-glial-changes-in-the-hyperhomocysteinemia-model-of-vascular-cognitive-impairment-and-dementia-vcid
#20
Tiffany L Sudduth, Erica M Weekman, Brittani R Price, Jennifer L Gooch, Abigail Woolums, Christopher M Norris, Donna M Wilcock
Vascular cognitive impairment and dementia (VCID) is the second leading cause of dementia behind Alzheimer's disease (AD) and is a frequent co-morbidity with AD. Despite its prevalence, little is known about the molecular mechanisms underlying the cognitive dysfunction resulting from cerebrovascular disease. Astrocytic end-feet almost completely surround intraparenchymal blood vessels in the brain and express a variety of channels and markers indicative of their specialized functions in the maintenance of ionic and osmotic homeostasis and gliovascular signaling...
November 24, 2016: Neuroscience
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