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Stress AND multiple sclerosis

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https://www.readbyqxmd.com/read/28440186/the-double-roles-of-the-prostaglandin-e2-ep2-receptor-in-intracerebral-hemorrhage
#1
Xu Luo, Qiquan Zhu, Jie Zhang, Qin Huang, Zongyi Xie, Yuan Cheng
Intracerebral hemorrhage (ICH), a subtype of stroke, brings high morbidity and mortality to human beings. Multiple studies indicate that neuroinflammation, excitotoxicity, oxidative stress, cytotoxicity resulted from the degradation products of blood clot play vital roles in ICH-induced secondary brain injury, which contributes to deterioration of neurological outcome. Prostaglandin E2 (PGE2), a type of prostanoids commonly up-regulated in these progresses, is known to modulate numerous cellular and molecular processes and involve in various diseases, including ICH, cerebral ischemic, Alzheimer's disease (AD) and amyotrophic lateral sclerosis (ALS) etc...
April 24, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28432518/correlation-between-heavy-metal-exposure-and-gstm1-polymorphism-in-iranian-multiple-sclerosis-patients
#2
Mehdi Aliomrani, Mohammad A Sahraian, Hamid Shirkhanloo, Mohammad Sharifzadeh, Mohammad R Khoshayand, Mohammad H Ghahremani
Multiple sclerosis (MS) is an immune-mediated chronic inflammatory disease of the central nervous system. Various exposures to heavy metals can lead to toxicity and oxidative stress. While glutathione-S-transferases are known as oxidative stress-related genes and involved in metal biotransformation. The aim of the present study is to investigate the correlation of GSTM1 polymorphism in MS patients and the possible association with blood concentration of arsenic (As) and cadmium (Cd) as major heavy metal pollutants...
April 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28431632/combined-evaluation-of-personality-risk-and-coping-in-ms-patients-a-step-towards-individualized-treatment-choice-the-pericoms-study-i
#3
G Bsteh, E Monz, L Zamarian, S Hagspiel, H Hegen, M Auer, S Wurth, F Di Pauli, F Deisenhammer, T Berger
BACKGROUND: Multiple sclerosis (MS) is a chronic inflammatory neurological disease requiring disease-modifying treatment (DMT). To provide patients with the optimal individual therapeutic option, treatment recommendations should be based not only on individual disease course and DMT specific benefit-risk estimates, but also on patient's individual characteristics such as personality, risk attitude and coping strategies. However, these characteristics are difficult to objectify in clinical routine practice without the support of appropriate evaluation instruments...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28423529/pif-promotes-brain-re-myelination-locally-while-regulating-systemic-inflammation-clinically-relevant-multiple-sclerosis-m-smegmatis-model
#4
Giuseppe Migliara, Martin Mueller, Alessia Piermattei, Chaya Brodie, Michael J Paidas, Eytan R Barnea, Francesco Ria
Neurologic disease diagnosis and treatment is challenging. Multiple Sclerosis (MS) is a demyelinating autoimmune disease with few clinical forms and uncertain etiology. Current studies suggest that it is likely caused by infection(s) triggering a systemic immune response resulting in antigen/non-antigen-related autoimmune response in central nervous system (CNS). New therapeutic approaches are needed. Secreted by viable embryos, PreImplantation Factor (PIF) possesses a local and systemic immunity regulatory role...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28411187/the-nuclear-receptor-nr4a1-acts-as-a-microglia-rheostat-and-serves-as-a-therapeutic-target-in-autoimmune-driven-central-nervous-system-inflammation
#5
Tobias Rothe, Natacha Ipseiz, Maria Faas, Stefanie Lang, Francesc Perez-Branguli, Daniel Metzger, Hiroshi Ichinose, Beate Winner, Georg Schett, Gerhard Krönke
Microglia cells fulfill key homeostatic functions and essentially contribute to host defense within the CNS. Altered activation of microglia, in turn, has been implicated in neuroinflammatory and neurodegenerative diseases. In this study, we identify the nuclear receptor (NR) Nr4a1 as key rheostat controlling the activation threshold and polarization of microglia. In steady-state microglia, ubiquitous neuronal-derived stress signals such as ATP induced expression of this NR, which contributed to the maintenance of a resting and noninflammatory microglia phenotype...
April 14, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28407574/air-pollution-by-particulate-matter-pm10-may-trigger-multiple-sclerosis-relapses
#6
Jonathan Roux, Denis Bard, Estelle Le Pabic, Claire Segala, Jacques Reis, Jean-Claude Ongagna, Jérôme de Sèze, Emmanuelle Leray
BACKGROUND: Seasonal variation of relapses in multiple sclerosis (MS) suggests that season-dependent factors, such as ambient air pollution, may trigger them. However, only few studies have considered possible role of air pollutants as relapse's risk factor. OBJECTIVE: We investigated the effect of particulate matter of aerodynamic diameter smaller than 10µm (PM10) on MS relapses. METHODS: In total, 536 relapsing MS patients from Strasbourg city (France) were included, accounting for 2052 relapses over 2000-2009 period...
April 10, 2017: Environmental Research
https://www.readbyqxmd.com/read/28399316/predicting-health-promotion-and-quality-of-life-with-symptom-clusters-and-social-supports-among-older-adults-with-multiple-sclerosis
#7
Wenhui Zhang, Heather Becker, Alexa K Stuifbergen, Adama Brown
Symptoms common among individuals with multiple sclerosis (MS) may influence health promotion and quality of life, especially among older adults, who often experience multiple chronic conditions. To identify and examine symptom clusters' effect on health promotion and quality of life, data from 215 adults with MS older than 60 (average years with diagnosis = 29) were analyzed. Correlations among symptoms ranged from 0.33 to 0.81. Factor analysis identified two symptom clusters: (a) physical/psychological/cognitive symptoms and (b) pain symptoms...
April 11, 2017: Journal of Gerontological Nursing
https://www.readbyqxmd.com/read/28394724/a-multimodal-nonpharmacologic-intervention-improves-mood-and-cognitive-function-in-people-with-multiple-sclerosis
#8
Jennifer E Lee, Babita Bisht, Michael J Hall, Linda M Rubenstein, Rebecca Louison, Danielle T Klein, Terry L Wahls
OBJECTIVE: The objective of this study was to examine whether participation in a 12-month multimodal intervention would improve mood and cognitive function in adults with progressive multiple sclerosis (MS). METHODS: In this one-arm, open-label feasibility trial, participants were prescribed a home-based multimodal intervention, including (1) a modified Paleolithic diet; (2) an exercise program (stretching and strengthening of the trunk and lower limb muscles); (3) neuromuscular electrical stimulation (EStim) of trunk and lower limb muscles; and (4) stress management (meditation and self-massage)...
March 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28382685/dimethyl-fumarate-ameliorates-myoclonus-stemming-from-protein-misfolding-in-oligodendrocytes
#9
Cherie M Southwood, Danielle M Garshott, Chelsea R Richardson, Navid Seraji-Bozorgzad, Andrew M Fribley, Alexander Gow
Multiple sclerosis (MS) is considered a primary autoimmune disease; however, this view is increasingly being challenged in basic and clinical science arenas because of the growing body of clinical trials data showing that exclusion of immune cells from the CNS only modestly slows disease progression to disability. Accordingly, there is significant need for expanding the scope of potential disease mechanisms to understand the etiology of MS. Concomitantly, the use of a broader range of preclinical animal models for characterizing existing efficacious clinical treatments may elucidate additional or unexpected mechanisms of action for these drugs that augment insight into MS etiology...
April 6, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28377696/als-pathogenesis-and-therapeutic-approaches-the-role-of-mesenchymal-stem-cells-and-extracellular-vesicles
#10
REVIEW
Roberta Bonafede, Raffaella Mariotti
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by progressive muscle paralysis determined by the degeneration of motoneurons in the motor cortex brainstem and spinal cord. The ALS pathogenetic mechanisms are still unclear, despite the wealth of studies demonstrating the involvement of several altered signaling pathways, such as mitochondrial dysfunction, glutamate excitotoxicity, oxidative stress and neuroinflammation. To date, the proposed therapeutic strategies are targeted to one or a few of these alterations, resulting in only a minimal effect on disease course and survival of ALS patients...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28375547/demyelination-induced-by-oxidative-stress-is-regulated-by-sphingosine-1-phosphate-receptors
#11
Sinead A O'Sullivan, Maria Velasco-Estevez, Kumlesh K Dev
Oxidative stress is a pathological condition defined as an imbalance between production and removal of reactive oxygen species. This process causes structural cell damage, disrupts DNA repair and induces mitochondrial dysfunction. Many in vitro studies have used direct bolus application of H2 O2 to investigate the role of oxidative stress in cell culture. In this study, using mouse organotypic cerebellar slice cultures, the effects of H2 O2 -induced oxidative stress on myelination state were examined, using bolus concentrations of H2 O2 (0...
April 4, 2017: Glia
https://www.readbyqxmd.com/read/28375164/expression-of-the-antioxidative-enzyme-peroxiredoxin-2-in-multiple-sclerosis-lesions-in-relation-to-inflammation
#12
David Voigt, Uta Scheidt, Tobias Derfuss, Wolfgang Brück, Andreas Junker
Multiple sclerosis is a chronic inflammatory disease of the central nervous system, characterized by demyelination and axonal damage as well as neuronal degeneration. Since oxygen-derived free radicals are an important factor leading to tissue damage in inflammatory multiple sclerosis (MS) lesions, research on antioxidative systems is essential to identify endogenous factors which can possibly counteract oxidative damage. As an important scavenging enzyme family, peroxiredoxins (PRDXs) play a crucial role in preventing oxidative damage; however little is known about their expression and function in MS lesions...
April 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28350081/morroniside-protects-sk-n-sh-human-neuroblastoma-cells-against-h2o2-induced-damage
#13
Jing-Xing Zhang, Rui Wang, Jin Xi, Lin Shen, An-You Zhu, Qi Qi, Qi-Yi Wang, Lun-Jun Zhang, Feng-Chao Wang, He-Zuo Lü, Jian-Guo Hu
Oxidative stress-induced cell injury has been linked to the pathogenesis of neurodegenerative disorders such as spinal cord injury, Parkinson's disease, and multiple sclerosis. Morroniside is an antioxidant derived from the Chinese herb Shan-Zhu-Yu. The present study investigated the neuroprotective effect of morroniside against hydrogen peroxide (H2O2)-induced cell death in SK-N-SH human neuroblastoma cells. H2O2 increased cell apoptosis, as determined by flow cytometry and Hoechst 33342 staining. This effect was reversed by pretreatment with morroniside at concentrations of 1-100 µM...
February 8, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28319253/heat-shock-protein-expression-in-cerebral-x-linked-adrenoleukodystrophy-reveals-astrocyte-stress-prior-to-myelin-loss
#14
Anna Lena Görtz, Laura A N Peferoen, Wouter H Gerritsen, Johannes M van Noort, Marianna Bugiani, Sandra Amor
AIMS: X-linked adrenoleukodystrophy (X-ALD) is a genetic white matter disorder in which demyelination occurs due to accumulation of very long chain fatty acids. Inflammation in the brain white matter is a hallmark of the pathology of cerebral X-ALD, but the underlying pathogenic mechanisms are still largely unknown. In other inflammatory demyelinating disorders such as multiple sclerosis, the expression of heat shock proteins (HSPs) in combination with interferon-γ (IFN-γ) has been suggested to play a prominent role in the initiation of demyelination and inflammation...
March 20, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28316999/does-the-gut-microbiota-influence-immunity-and-inflammation-in-multiple-sclerosis-pathophysiology
#15
REVIEW
Monika Adamczyk-Sowa, Aldona Medrek, Paulina Madej, Wirginia Michlicka, Pawel Dobrakowski
Aim. Evaluation of the impact of gut microflora on the pathophysiology of MS. Results. The etiopathogenesis of MS is not fully known. Gut microbiota may be of a great importance in the pathogenesis of MS, since recent findings suggest that substitutions of certain microbial population in the gut can lead to proinflammatory state, which can lead to MS in humans. In contrast, other commensal bacteria and their antigenic products may protect against inflammation within the central nervous system. The type of intestinal flora is affected by antibiotics, stress, or diet...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28315275/sigma-1-receptor-in-motoneuron-disease
#16
Renzo Mancuso, Xavier Navarro
Amyotrophic Lateral Sclerosis (ALS ) is a neurodegenerative disease affecting spinal cord and brain motoneurons , leading to paralysis and early death. Multiple etiopathogenic mechanisms appear to contribute in the development of ALS , including glutamate excitotoxicity, oxidative stress , protein misfolding, mitochondrial defects, impaired axonal transport, inflammation and glial cell alterations. The Sigma-1 receptor is highly expressed in motoneurons of the spinal cord, particularly enriched in the endoplasmic reticulum (ER) at postsynaptic cisternae of cholinergic C-terminals...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28284334/voluntary-wheel-running-differentially-affects-disease-outcomes-in-male-and-female-mice-with-experimental-autoimmune-encephalomyelitis
#17
Katherine A Mifflin, Emma Frieser, Curtis Benson, Glen Baker, Bradley J Kerr
Multiple sclerosis (MS) is an inflammatory neurodegenerative disease of the central nervous system. The primary symptoms of MS include the loss of sensory and motor function. Exercise has been shown to modulate disease parameters in experimental autoimmune encephalomyelitis (EAE), a mouse model of MS, by reducing immune cell infiltration and oxidative stress. However, these initial studies were carried out exclusively in female mice. The present study compared the effects of daily voluntary wheel running on several disease parameters in male and female mice with EAE...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28275061/impaired-sweating-responses-to-a-passive-whole-body-heat-stress-in-individuals-with-multiple-sclerosis
#18
Dustin R Allen, Mu Huang, Iqra M Parupia, Ariana R Dubelko, Elliot M Frohman, Scott L Davis
Multiple sclerosis (MS) is an autoimmune disease that affects the central nervous system (CNS), disrupting autonomic function. The aim of this study was to test the hypothesis that individuals with MS have blunted control of thermoregulatory reflex increases in sweat rate (SR) and cutaneous vasodilation compared to controls during a passive whole-body heat stress (WBH). Eighteen individuals with relapsing-remitting MS and 18 healthy controls (CON) participated in the study. Core temperature (Tcore), skin temperature, heart rate, arterial blood pressure (10 min intervals), skin blood flow (laser-Doppler flux: LDF), and SR were continuously measured during normothermic baseline (34 °C water perfusing a tube-lined suit) and WBH (increased Tcore 0...
March 8, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28270908/targeting-oxidative-stress-for-treatment-of-glaucoma-and-optic-neuritis
#19
REVIEW
Atsuko Kimura, Kazuhiko Namekata, Xiaoli Guo, Takahiko Noro, Chikako Harada, Takayuki Harada
Glaucoma is a neurodegenerative disease of the eye and it is one of the leading causes of blindness. Glaucoma is characterized by progressive degeneration of retinal ganglion cells (RGCs) and their axons, namely, the optic nerve, usually associated with elevated intraocular pressure (IOP). Current glaucoma therapies target reduction of IOP, but since RGC death is the cause of irreversible vision loss, neuroprotection may be an effective strategy for glaucoma treatment. One of the risk factors for glaucoma is increased oxidative stress, and drugs with antioxidative properties including valproic acid and spermidine, as well as inhibition of apoptosis signal-regulating kinase 1, an enzyme that is involved in oxidative stress, have been reported to prevent glaucomatous retinal degeneration in mouse models of glaucoma...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28252608/-clinical-guidelines-for-the-use-of-dimethyl-fumarate-in-relapsing-remitting-multiple-sclerosis
#20
V M Alifirova, A N Boiko, Ya V Vlasov, M V Davydovskaya, M N Zakharova, N A Malkova, E V Popova, S A Sivertseva, N N Spirin, N V Khachanova, Т Е Shmidt
Multiple sclerosis is a chronic demyelinating and neurodegenerative disease of the central nervous system, in which autoimmune inflammation and oxidative stress play essential pathogenetic roles. Activation and infiltration of immune cells in brain tissues, lipid peroxidation products, mitochondrial dysfunction, defective antioxidant protection, and many other pathological factors result in demyelination, axonal injury and death, and apoptosis of oligodendrocytes and neurons, all of which causes constant progression of the disease...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
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