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Central neuroplasticity

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https://www.readbyqxmd.com/read/28638028/-main-directions-of-differential-diagnosis-optimization-and-rational-treatment-of-an-acute-vertigo-attack
#1
I N Samartsev, S A Zhyvolupov, V V Ponomarev, Yu S Butakova, T V Bodrova
AIM: To develop and assess the validity of the clinical algorithm VERTIGO for the differential diagnosis of central and peripheral vertigo and optimization of treatment of patients with vertigo. MATERIAL AND METHODS: Sixty-five patients with an acute attack of vertigo, aged from 18 to 75 years (53±6.7 years), were studied. All patients underwent standard neurological examination. In case of signs of central vertigo, patients underwent neuroimaging. Diagnostic accuracy, sensitivity and specificity of the VERTIGO algorithm as well as its positive and negative prognostic values were calculated...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28628306/lysine-deacetylation-by-hdac6-regulates-the-kinase-activity-of-akt-in-human-neural-progenitor-cells
#2
Jonathan Iaconelli, Jasmin Lalonde, Bradley Watmuff, Bangyan Liu, Ralph Mazitschek, Stephen J Haggarty, Rakesh Karmacharya
AKT family of serine-threonine kinases functions downstream of phosphatidylinositol 3-kinase (PI3K) to transmit signals by direct phosphorylation of a number of targets, including the mammalian target of rapamycin (mTOR), glycogen synthase kinase 3β (GSK3β) and β-catenin. AKT binds to phosphatidylinositol (3,4,5)-triphosphate (PIP3) generated by PI3K activation, which results in its membrane localization and subsequent activation through phosphorylation by phosphoinositide-dependent protein kinase 1 (PDK1)...
June 19, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28611614/functional-and-structural-network-recovery-after-mild-traumatic-brain-injury-a-1-year-longitudinal-study
#3
Patrizia Dall'Acqua, Sönke Johannes, Ladislav Mica, Hans-Peter Simmen, Richard Glaab, Javier Fandino, Markus Schwendinger, Christoph Meier, Erika J Ulbrich, Andreas Müller, Hansruedi Baetschmann, Lutz Jäncke, Jürgen Hänggi
Brain connectivity after mild traumatic brain injury (mTBI) has not been investigated longitudinally with respect to both functional and structural networks together within the same patients, crucial to capture the multifaceted neuropathology of the injury and to comprehensively monitor the course of recovery and compensatory reorganizations at macro-level. We performed a prospective study with 49 mTBI patients at an average of 5 days and 1 year post-injury and 49 healthy controls. Neuropsychological assessments as well as resting-state functional and diffusion-weighted magnetic resonance imaging were obtained...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28607750/noninvasive-tongue-stimulation-combined-with-intensive-cognitive-and-physical-rehabilitation-induces-neuroplastic-changes-in-patients-with-multiple-sclerosis-a-multimodal-neuroimaging-study
#4
Gabriel Leonard, Yves Lapierre, Jen-Kai Chen, Rima Wardini, Joelle Crane, Alain Ptito
BACKGROUND: Multiple sclerosis (MS) patients have central nervous system (CNS) lesions that may impede cognitive and sensorimotor function. Few rehabilitative therapies are available. OBJECTIVES: The objective of this paper is to study effects of noninvasive tongue stimulation using the Portable Neuromodulation Stimulator (PoNS™) combined with intensive cognitive and physical rehabilitation on working memory, gait, balance and concomitant changes in the brain...
January 2017: Multiple Sclerosis Journal—Experimental, Translational and Clinical
https://www.readbyqxmd.com/read/28600534/intracranial-fluid-redistribution-but-no-white-matter-microstructural-changes-during-a-spaceflight-analog
#5
Vincent Koppelmans, Ofer Pasternak, Jacob J Bloomberg, Yiri E De Dios, Scott J Wood, Roy Riascos, Patricia A Reuter-Lorenz, Igor S Kofman, Ajitkumar P Mulavara, Rachael D Seidler
The neural correlates of spaceflight-induced sensorimotor impairments are unknown. Head down-tilt bed rest (HDBR) serves as a microgravity analog because it mimics the headward fluid shift and axial body unloading of spaceflight. We investigated focal brain white matter (WM) changes and fluid shifts during 70 days of 6° HDBR in 16 subjects who were assessed pre (2x), during (3x), and post-HDBR (2x). Changes over time were compared to those in control subjects (n = 12) assessed four times over 90 days. Diffusion MRI was used to assess WM microstructure and fluid shifts...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28585890/hypoxic-conditioning-and-the-central-nervous-system-a-new-therapeutic-opportunity-for-brain-and-spinal-cord-injuries
#6
S Baillieul, S Chacaroun, S Doutreleau, O Detante, J L Pépin, S Verges
Central nervous system diseases are among the most disabling in the world. Neuroprotection and brain recovery from either acute or chronic neurodegeneration still represent a challenge in neurology and neurorehabilitation as pharmacology treatments are often insufficiently effective. Conditioning the central nervous system has been proposed as a potential non-pharmacological neuro-therapeutic. Conditioning refers to a procedure by which a potentially deleterious stimulus is applied near to but below the threshold of damage to the organism to increase resistance to the same or even different noxious stimuli given above the threshold of damage...
June 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28582249/design-and-development-of-a-telerehabilitation-platform-for-patients-with-phantom-limb-pain-a-user-centered-approach
#7
Andreas Rothgangel, Susy Braun, Rob Smeets, Anna Beurskens
BACKGROUND: Phantom limb pain is a frequent and persistent problem following amputation. Achieving sustainable favorable effects on phantom limb pain requires therapeutic interventions such as mirror therapy that target maladaptive neuroplastic changes in the central nervous system. Unfortunately, patients' adherence to unsupervised exercises is generally poor and there is a need for effective strategies such as telerehabilitation to support long-term self-management of patients with phantom limb pain...
February 15, 2017: JMIR Rehabil Assist Technol
https://www.readbyqxmd.com/read/28579013/modern-pain-neuroscience-in-clinical-practice-applied-to-post-cancer-paediatric-and-sports-related-pain
#8
REVIEW
Anneleen Malfliet, Laurence Leysen, Roselien Pas, Kevin Kuppens, Jo Nijs, Paul Van Wilgen, Eva Huysmans, Lisa Goudman, Kelly Ickmans
In the last decade, evidence regarding chronic pain has developed exponentially. Numerous studies show that many chronic pain populations show specific neuroplastic changes in the peripheral and central nervous system. These changes are reflected in clinical manifestations, like a generalized hypersensitivity of the somatosensory system. Besides a hypersensitivity of bottom-up nociceptive transmission, there is also evidence for top-down facilitation of pain due to malfunctioning of the endogenous descending nociceptive modulatory systems...
May 19, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28553764/somatosensory-tinnitus-current-evidence-and-future-perspectives
#9
Massimo Ralli, Antonio Greco, Rosaria Turchetta, Giancarlo Altissimi, Marco de Vincentiis, Giancarlo Cianfrone
In some individuals, tinnitus can be modulated by specific maneuvers of the temporomandibular joint, head and neck, eyes, and limbs. Neuroplasticity seems to play a central role in this capacity for modulation, suggesting that abnormal interactions between the sensory modalities, sensorimotor systems, and neurocognitive and neuroemotional networks may contribute to the development of somatosensory tinnitus. Current evidence supports a link between somatic disorders and higher modulation of tinnitus, especially in patients with a normal hearing threshold...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28549782/central-trkb-blockade-attenuates-icv-angiotensin-ii-hypertension-and-sympathetic-nerve-activity-in-male-sprague-dawley-rats
#10
Bryan K Becker, Hanjun Wang, Irving H Zucker
Increased sympathetic nerve activity and the activation of the central renin-angiotensin system are commonly associated with cardiovascular disease states such as hypertension and heart failure, yet the precise mechanisms contributing to the long-term maintenance of this sympatho-excitation are incompletely understood. Due to the established physiological role of neurotrophins contributing toward neuroplasticity and neuronal excitability along with recent evidence linking the renin-angiotensin system and brain-derived neurotrophic factor (BDNF) along with its receptor (TrkB), it is likely the two systems interact to promote sympatho-excitation during cardiovascular disease...
May 19, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28542314/toward-a-more-personalized-motor-function-rehabilitation-in-myotonic-dystrophy-type-1-the-role-of-neuroplasticity
#11
Simona Portaro, Antonino Naro, Antonino Chillura, Luana Billeri, Alessia Bramanti, Placido Bramanti, Carmelo Rodolico, Rocco Salvatore Calabrò
Myotonic dystrophy type 1 (DM1) is the most prevalent adult muscular dystrophy, often accompanied by impairments in attention, memory, visuospatial and executive functions. Given that DM1 is a multi-system disorder, it requires a multi-disciplinary approach, including effective rehabilitation programs, focusing on the central nervous system neuroplasticity, in order to develop patient-tailored rehabilitative procedures for motor function recovery. Herein, we performed a transcranial magnetic stimulation (TMS) study aimed at investigating central motor conduction time, sensory-motor plasticity, and cortical excitability in 7 genetically defined DM1 patients...
2017: PloS One
https://www.readbyqxmd.com/read/28523976/the-application-of-tdcs-for-the-treatment-of-psychiatric-diseases
#12
Min-Fang Kuo, Po-See Chen, Michael A Nitsche
Neuroplasticity represents the dynamic structural and functional reorganization of the central nervous system, including its connectivity, due to environmental and internal demands. It is recognized as a major physiological basis for adaption of cognition and behaviour, and, thus, of utmost importance for normal brain function. Cognitive dysfunctions are major symptoms in psychiatric disorders, which are often associated with pathological alteration of neuroplasticity. Transcranial direct current stimulation (tDCS), a recently developed non-invasive brain stimulation technique, is able to induce and modulate cortical plasticity in humans via the application of relatively weak current through the scalp of the head...
April 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28514330/-mri-morphometry-of-neuroplastic-changes-in-the-brain-after-conservative-treatment-of-traumatic-brachial-plexopathy
#13
S A Zhivolupov, E N Gnevyshev, A G Trufanov, L V Voronkov, A A Jurin, N A Rashidov, I N Samartsev, I D Poltavsky
AIM: To identify neuroplastic changes in the brain structures during treatment of traumatic axonotomy of the brachial plexus (the pathology of peripheral nervous system). MATERIAL AND METHODS: MRI morphometry of white and grey matter was studied in 62 patients with traumatic axonotomy of the brachial plexus. RESULTS: There were correlations between the thickness of sensorimotor cortex, morphometric parameters (volume, diffusion, fractional anisotropy) of subcortical formations (corticospinal tracts, the forceps minor), severity of neurological deficit and dynamics of clinical course depending on the therapeutic strategy...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28502529/mechanisms-underlying-the-early-risk-to-develop-anxiety-and-depression-a-translational-approach
#14
REVIEW
Ned H Kalin
Anxious temperament (AT) is an early life disposition that markedly increases the risk to develop stress related psychopathology such as anxiety and depressive disorders. Since anxiety and depression are common, and frequently have their onset early in life, a better understanding of the factors related to their childhood onset will facilitate the development of new more effective neurally informed interventions. A nonhuman primate (NHP) developmental model of childhood AT has been established, which has provided an understanding of the neural systems and molecular mechanisms mediating the development of AT...
June 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28488779/nociceptor-plasticity-a-closer-look
#15
Maria Caterina Pace, Maria Beatrice Passavanti, Lorenzo De Nardis, Fabio Bosco, Pasquale Sansone, Vincenzo Pota, Manlio Barbarisi, Antonio Palagiano, Fabio Arturo Iannotti, Elisabetta Panza, Caterina Aurilio
Nociceptors are receptors specifically involved in detecting a tissue damage and transducing it in an electrical signal. Nociceptor activation provoked by any kind of acute lesion is related to the release of several mediators of inflammation, within the framework of a process defined as "peripheral sensitization." This results in an exaggerated response to the painful stimulus, clinically defined as "primary hyperalgesia." The concept of "neuroplasticity" may explain the adaptive mechanisms carried out by the Nervous System in relation to a "harmful" damage; also, neuroplasticity mechanisms are also fundamental for rehabilitative intervention protocols...
May 10, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28482339/sex-differences-in-forebrain-monoaminergic-response-to-song-performance
#16
Susan M Lyons, Keith W Sockman
In many species, successful reproduction is dependent on the ability to adjust social behavior in response to an ever-changing social environment. Because a sexual signal's value and meaning can differ between females and males, responses to those signals should also differ. One way individuals can modulate social behavior is through experience-dependent modulation of the sensory systems that process social signals. Central monoamines (norepinephrine, dopamine, serotonin) modulate neural sensitivity to social stimuli and are key regulators of experience-dependent neuroplasticity in vertebrate sensory systems...
2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/28438669/the-effects-of-chinese-medicines-on-camp-pka-signaling-in-central-nervous-system-dysfunction
#17
REVIEW
Lin Li, Xiang Fan, Xi-Ting Zhang, Shao-Qian Yue, Zuo-Yan Sun, Jin-Qiang Zhu, Jun-Hua Zhang, Xiu-Mei Gao, Han Zhang
Neuropathological injury in the mammalian adult central nervous system (CNS) may cause axon disruption, neuronal death and lasting neurological deficits. Failure of axon regeneration is one of the major challenges for CNS functional recovery. Recently, the cAMP/PKA signaling pathway has been proven to be a critical regulator for neuronal regeneration, neuroplasticity, learning and memory. Also, previous studies have shown the effects of Chinese medicines on the prevention and treatment of CNS dysfunction mediated in part by cAMP/PKA signaling...
April 21, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28429337/from-acute-to-chronic-pain-tapentadol-in-the-progressive-stages-of-this-disease-entity
#18
F Coluzzi, D Fornasari, J Pergolizzi, P Romualdi
OBJECTIVE: Chronic pain is now recognized as a neural disease, which results from a maladaptive functional and structural transformation process occurring over time. In its chronic phase, pain is not just a symptom but also a disease entity. Therefore, pain must be properly addressed, as many patients still report unsatisfactory pain control despite on-going treatment. The selection of the therapy - taking into account the pathophysiological mechanisms of pain - and the right timing can result in a successful analgesic outcome...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28392485/prefrontal-endocannabinoids-stress-controllability-and-resilience-a-hypothesis
#19
REVIEW
Nicholas B Worley, Matthew N Hill, John P Christianson
Stressor exposure is a predisposing risk factor for many psychiatric conditions such as PTSD and depression. However, stressors do not influence all individuals equally and in response to an identical stressor some individuals may be vulnerable while others are resilient. While various biological and behavioral factors contribute to vulnerability versus resilience, an individual's degree of control over the stressor is among the most potent. Even with only one experience with control over stress, behavioral control has been shown to have acute and long-lasting stress-mitigating effects...
April 7, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28339428/does-conservative-treatment-change-the-brain-in-patients-with-chronic-musculoskeletal-pain-a-systematic-review
#20
Jeroen Kregel, Iris Coppieters, Robby DePauw, Anneleen Malfliet, Lieven Danneels, Jo Nijs, Barbara Cagnie, Mira Meeus
BACKGROUND: Chronic musculoskeletal pain is characterized by maladaptive central neuroplastic changes. Many observational studies have demonstrated that chronic pain states are associated with brain alterations regarding structure and/or function. Rehabilitation of patients with chronic musculoskeletal pain may include cognitive, exercise, or multimodal therapies. OBJECTIVE: The current review aims to provide a constructive overview of the existing literature reporting neural correlates, based on brain magnetic resonance imaging (MRI) techniques, following conservative treatment in chronic musculoskeletal pain patients...
March 2017: Pain Physician
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