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Peripherial nervous system

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https://www.readbyqxmd.com/read/29141189/role-of-cyclooxygenase-inhibitors-in-diminution-of-dissimilar-stress-induced-depressive-behaviour-and-memory-impairment-in-rats
#1
Tahira Perveen, Shaista Emad, Saida Haider, Sana Sadaf, Sara Qadeer, Zehra Batool, Yousra Sarfaraz, Sheeza Sheikh
Memory functions can be considerably affected by various life events and stress has shown to be a chief regulator. Different stress patterns have distinct effects on the overall functioning of the brain. Stress provokes inflammation not only in the periphery but also in the brain. Neuroinflammation causes alterations in neuronal structure and function, which eventually progress to the development of neurodegenerative diseases. Inflammatory reactions are modulated through communication between the nervous, endocrine and immune systems...
November 12, 2017: Neuroscience
https://www.readbyqxmd.com/read/29138290/developing-a-sense-of-touch
#2
REVIEW
Blair A Jenkins, Ellen A Lumpkin
The sensation of touch is mediated by mechanosensory neurons that are embedded in skin and relay signals from the periphery to the central nervous system. During embryogenesis, axons elongate from these neurons to make contact with the developing skin. Concurrently, the epithelium of skin transforms from a homogeneous tissue into a heterogeneous organ that is made up of distinct layers and microdomains. Throughout this process, each neuronal terminal must form connections with an appropriate skin region to serve its function...
November 15, 2017: Development
https://www.readbyqxmd.com/read/29096692/donor-variability-may-mask-dimethyl-fumarate-s-effects-on-nuclear-factor-e2-related-factor-2-in-human-peripheral-blood-mononuclear-cells
#3
Sarah E Fiedler, Amelia R Kerns, Catherine Tsang, Haley N Love, Sonemany Salinthone
OBJECTIVE: Dimethyl fumarate (DMF) is an anti-inflammatory and antioxidant drug used to treat multiple sclerosis, but its mechanism(s) of action are not fully understood. In central nervous system (CNS) cells, DMF activates nuclear factor E2-related factor 2 (Nrf2), perhaps ameliorating oxidative stress-induced damage. However, it is not known whether DMF also activates Nrf2 in peripheral immune cells, which are known to participate in CNS demyelination. We conducted a single observation study to determine whether DMF can activate Nrf2 in peripheral immune cells in vitro...
November 2, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29093711/the-gateway-reflex-a-novel-neuro-immune-interaction-for-the-regulation-of-regional-vessels
#4
REVIEW
Yuki Tanaka, Yasunobu Arima, Daisuke Kamimura, Masaaki Murakami
The gateway reflex is a new phenomenon that explains how immune cells bypass the blood-brain barrier to infiltrate the central nervous system (CNS) and trigger neuroinflammation. To date, four examples of gateway reflexes have been discovered, each described by the stimulus that evokes the reflex. Gravity, electricity, pain, and stress have all been found to create gateways at specific regions of the CNS. The gateway reflex, the most recently discovered of the four, has also been shown to upset the homeostasis of organs in the periphery through its action on the CNS...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29089979/therapeutic-potential-of-%C3%AE-7-nicotinic-receptor-agonists-to-regulate-neuroinflammation-in-neurodegenerative-diseases
#5
REVIEW
Laura Foucault-Fruchard, Daniel Antier
Neurodegenerative diseases, such as Alzheimer's, Parkinson's and Huntington's diseases, are all characterized by a component of innate immunity called neuroinflammation. Neuronal loss and neuroinflammation are two phenomena closely linked. Hence, the neuroinflammation is a relevant target for the management of the neurodegenerative diseases given that, to date, there is no treatment to stop neuronal loss. Several studies have investigated the potential effects of activators of alpha 7 nicotinic acetylcholine receptors in animal models of neurodegenerative diseases...
September 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29068488/human-endogenous-retroviruses-in-the-aetiology-of-ms
#6
REVIEW
T Christensen
Several lines of investigation have provided strong indications for an association between the immune-mediated, neurologic disease multiple sclerosis (MS) and human endogenous retroviruses (HERVs). Whether the relationship is causal is yet to be established. Endogenous retroviruses are pathogenic-in other species than the human. Several aspects of the activation and involvement of specific HERV families (HERV-H/F and HERV-W/MSRV) have been documented, both for cells in the periphery and in the central nervous system...
November 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29060180/functional-connectivity-analysis-of-multiplex-muscle-network-across-frequencies
#7
Jennifer N Kerkman, Andreas Daffertshofer, Leonardo L Gollo, Michael Breakspear, Tjeerd W Boonstra
Physiological networks reveal information about the interaction between subsystems of the human body. Here we investigated the interaction between the central nervous system and the musculoskeletal system by mapping functional muscle networks. Muscle networks were extracted using coherence analysis of muscle activity assessed using surface electromyography (EMG). Surface EMG was acquired from 36 muscles distributed throughout the body while participants were standing upright and performing a bimanual pointing task...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29037816/in-vitro-segregation-and-isolation-of-human-pluripotent-stem-cell-derived-neural-crest-cells
#8
Sabine Münst, Philipp Koch, Jaideep Kesavan, Michael Alexander-Mays, Bernhard Münst, Sandra Blaess, Oliver Brüstle
The neural crest (NC) is a transient embryonic cell population with remarkable characteristics. After delaminating from the neural tube, NC cells (NCCs) migrate extensively, populate nearly every tissue of the body and differentiate into highly diverse cell types such as peripheral neurons and glia, but also mesenchymal cells including chondrocytes, osteocytes, and adipocytes. While the NC has been extensively studied in several animal models, little is known about human NC development. A number of methods have been established to derive NCCs in vitro from human pluripotent stem cells (hPSC)...
October 13, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/29029628/erythropoietin-reduces-experimental-autoimmune-encephalomyelitis-severity-via-neuroprotective-mechanisms
#9
M Moransard, M Bednar, K Frei, M Gassmann, O O Ogunshola
BACKGROUND: Treatment with erythropoietin (Epo) in experimental autoimmune encephalomyelitis (EAE), the rodent model of multiple sclerosis (MS), has consistently been shown to ameliorate disease progression and improve overall outcome. The effect has been attributed to modulation of the immune response and/or preservation of the central nervous system (CNS) tissue integrity. It remains unclear, however, if (a) Epo acts primarily in the CNS or the periphery and if (b) Epo's beneficial effect in EAE is mainly due to maintaining CNS tissue integrity or to modulation of the immune response...
October 13, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28979822/the-role-and-treatment-implications-of-peripheral-and-central-processing-of-pain-pruritus-and-nausea-in-heightened-somatic-awareness-a-review
#10
REVIEW
David R Spiegel, Alexander Pattison, Alexis Lyons, Umer Ansari, Aidan L Mccroskey, Eric Luehrs, Lauren Barr, Stephanie Le
Pain, pruritus, and nausea are complex sensory and emotional physiological symptoms that can vary widely between people and even within an individual, depending on the context and meaning of the symptom and the psychological state of the person. This article reviews the acute neural transmission of pain, pruritus, and nausea symptoms, which can begin in the periphery and/or viscera. The subsequent multiple pathways in the central nervous system that become involved in the processing of these symptoms are also discussed...
May 2017: Innovations in Clinical Neuroscience
https://www.readbyqxmd.com/read/28959254/oral-administration-of-the-probiotic-strain-escherichia-coli-nissle-1917-reduces-susceptibility-to-neuroinflammation-and-repairs-experimental-autoimmune-encephalomyelitis-induced-intestinal-barrier-dysfunction
#11
Thomas Secher, Sahar Kassem, Mehdi Benamar, Isabelle Bernard, Michele Boury, Frederick Barreau, Eric Oswald, Abdelhadi Saoudi
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) with an increasing incidence in developed countries. Recent reports suggest that modulation of the gut microbiota might be one promising therapy for MS. Here, we investigated whether the probiotic Escherichia coli strain Nissle 1917 (ECN) could modulate the outcome of experimental autoimmune encephalomyelitis (EAE), a murine model of MS. We evidenced that daily oral treatment with ECN, but not with the archetypal K12 E...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28958206/pka-kin-1-mediates-innate-immune-responses-to-bacterial-pathogens-in-caenorhabditis-elegans
#12
Yi Xiao, Fang Liu, Pei-Ji Zhao, Cheng-Gang Zou, Ke-Qin Zhang
The genetically tractable organism Caenorhabditis elegans is a powerful model animal for the study of host innate immunity. Although the intestine and the epidermis of C. elegans that is in contact with pathogens are likely to function as sites for the immune function, recent studies indicate that the nervous system could control innate immunity in C. elegans. In this report, we demonstrated that protein kinase A (PKA)/KIN-1 in the neurons contributes to resistance against Salmonella enterica infection in C...
January 1, 2017: Innate Immunity
https://www.readbyqxmd.com/read/28957729/livin-on-the-edge-glia-shape-nervous-system-transition-zones
#13
REVIEW
Laura Fontenas, Sarah Kucenas
The vertebrate nervous system is divided into two functional halves; the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which consists of nerves and ganglia. Incoming peripheral stimuli transmitted from the periphery to the CNS and subsequent motor responses created because of this information, require efficient communication between the two halves that make up this organ system. Neurons and glial cells of each half of the nervous system, which are the main actors in this communication, segregate across nervous system transition zones and never mix, allowing for efficient neurotransmission...
September 25, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28949993/developmental-and-adult-characterization-of-secretagogin-expressing-amacrine-cells-in-zebrafish-retina
#14
Stefanie Dudczig, Peter David Currie, Patricia Regina Jusuf
Calcium binding proteins show stereotypical expression patterns within diverse neuron types across the central nervous system. Here, we provide a characterization of developmental and adult secretagogin-immunolabelled neurons in the zebrafish retina with an emphasis on co-expression of multiple calcium binding proteins. Secretagogin is a recently identified and cloned member of the F-hand family of calcium binding proteins, which labels distinct neuron populations in the retinas of mammalian vertebrates. Both the adult distribution of secretagogin labeled retinal neurons as well as the developmental expression indicative of the stage of neurogenesis during which this calcium binding protein is expressed was quantified...
2017: PloS One
https://www.readbyqxmd.com/read/28947212/microrna-590-promotes-pathogenic-th17%C3%A2-cell-differentiation-through-targeting-tob1-and-is-associated-with-multiple-sclerosis
#15
Qing Liu, Qing Gao, Yu Zhang, Zhibao Li, Xiaoxue Mei
Although the exact pathogenesis of multiple sclerosis (MS) remains largely unclear, Th17 cells have been suggested as an essential regulator in the disease induction. Emerging evidence have demonstrated that noncoding RNAs, especially microRNAs (miRs), play a crucial role in modulation of Th17 cell differentiation and autoimmune disease development. Here, we revealed that miR-590 expression was markedly increased in periphery blood mononuclear cells (PBMC) and cerebrospinal fluid (CSF) of patients with MS, and positively correlated with the disease severity...
November 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28939923/-thyroid-emergencies-thyroid-storm-and-myxedema-coma
#16
REVIEW
C Spitzweg, M Reincke, R Gärtner
Thyroid emergencies are rare life-threatening endocrine conditions resulting from either decompensated thyrotoxicosis (thyroid storm) or severe thyroid hormone deficiency (myxedema coma). Both conditions develop out of a long-standing undiagnosed or untreated hyper- or hypothyroidism, respectively, precipitated by an acute stress-associated event, such as infection, trauma, or surgery. Cardinal features of thyroid storm are myasthenia, cardiovascular symptoms, in particular tachycardia, as well as hyperthermia and central nervous system dysfunction...
October 2017: Der Internist
https://www.readbyqxmd.com/read/28935216/allosteric-modulators-targeting-cns-muscarinic-receptors
#17
REVIEW
Andreas Bock, Ramona Schrage, Klaus Mohr
Muscarinic acetylcholine receptors are G protein-coupled receptors (GPCRs) which are broadly expressed in the central nervous system (CNS) and other tissues in the periphery. They emerge as important drug targets for a number of diseases including Alzheimer's disease, Parkinson's disease, and schizophrenia. Muscarinic receptors are divided into five subtypes (M1-M5) of which M1-M4 have been crystalized. All subtypes possess at least one allosteric binding site which is located in the extracellular region of the receptor on top of the ACh (i...
September 18, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28916046/inflammatory-response-and-long-term-behavioral-assessment-after-neonatal-co2-pneumothorax-study-in-a-rodent-model
#18
Alice Miranda, Susana Roque, Cláudia Serre-Miranda, José Miguel Pêgo, Jorge Correia-Pinto
BACKGROUND: Carbon-dioxide (CO2)-pneumothorax during minimally invasive surgery induces well-known metabolic changes. However, little is known about its impact on the central nervous system. The aim of this work is to evaluate the acute impact of CO2-pneumothorax over central cytokine response and its long-term effect on animal behavior. METHODS: This is an experimental study where neonatal Sprague-Dawley rats are submitted to CO2-pneumothorax. Peripheral and central cytokine response was evaluated 24h after insufflation, and peripheral immune cell phenotyping was evaluated 24h and 4weeks post-insufflation...
August 24, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28903781/transmission-of-%C3%AE-synuclein-containing-erythrocyte-derived-extracellular-vesicles-across-the-blood-brain-barrier-via-adsorptive-mediated-transcytosis-another-mechanism-for-initiation-and-progression-of-parkinson-s-disease
#19
Junichi Matsumoto, Tessandra Stewart, Lifu Sheng, Na Li, Kristin Bullock, Ning Song, Min Shi, William A Banks, Jing Zhang
Parkinson's disease (PD) pathophysiology develops in part from the formation, transmission, and aggregation of toxic species of the protein α-synuclein (α-syn). Recent evidence suggests that extracellular vesicles (EVs) may play a vital role in the transport of toxic α-syn between brain regions. Moreover, increasing evidence has highlighted the participation of peripheral molecules, particularly inflammatory species, which may influence or exacerbate the development of PD-related changes to the central nervous system (CNS), although detailed characterization of these species remains to be completed...
September 13, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28894751/peripheral-inhibitor-of-ache-neostigmine-prevents-the-inflammatory-dependent-suppression-of-gnrh-lh-secretion-during-the-follicular-phase-of-the-estrous-cycle
#20
Andrzej P Herman, Janina Skipor, Agata Krawczyńska, Joanna Bochenek, Karolina Wojtulewicz, Hanna Antushevich, Anna Herman, Kamila Paczesna, Katarzyna Romanowicz, Dorota Tomaszewska-Zaremba
The study was designed to test the hypothesis that the inhibition of acetylcholinesterase (AChE) activity at the periphery by Neostigmine (0.5 mg/animal) will be sufficient to prevent inflammatory dependent suppression of the gonadotropin-releasing hormone (GnRH)/luteinising hormone (LH) secretion in ewes in the follicular phase of the estrous cycle, and this effect will be comparable with the systemic AChE inhibitor, Donepezil (2.5 mg/animal). An immune/inflammatory challenge was induced by peripheral administration of lipopolysaccharide (LPS; 400 ng/kg)...
2017: BioMed Research International
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