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Central nervous system recovery

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https://www.readbyqxmd.com/read/29149058/neurotrophic-and-neuroregenerative-effects-of-gh-igf1
#1
Vittorio Emanuele Bianchi, Vittorio Locatelli, Laura Rizzi
INTRODUCTION: Human neurodegenerative diseases increase progressively with age and present a high social and economic burden. Growth hormone (GH) and insulin-like growth factor-1 (IGF-1) are both growth factors exerting trophic effects on neuronal regeneration in the central nervous system (CNS) and peripheral nervous system (PNS). GH and IGF-1 stimulate protein synthesis in neurons, glia, oligodendrocytes, and Schwann cells, and favor neuronal survival, inhibiting apoptosis. This study aims to evaluate the effect of GH and IGF-1 on neurons, and their possible therapeutic clinical applications on neuron regeneration in human subjects...
November 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29143123/recovery-of-the-cardiac-autonomic-nervous-and-vascular-system-after-maximal-cardiopulmonary-exercise-testing-in-recreational-athletes
#2
Heidi Weberruss, Johannes Maucher, Renate Oberhoffer, Jan Müller
OBJECTIVE: The body's adaptation to physical exercise is modulated by sympathetic and parasympathetic (vagal) branches of the autonomic nervous system (ANS). Heart rate variability (HRV), the beat-to-beat variation of the heart, is a proxy measure for ANS activity, whereas blood pressure (BP) is an indicator for cardiovascular function. Impaired vagal activity and lower BP is already described after exercise. However, inconsistent results exist about how long vagal recovery takes and how long post-exercise hypotension persists...
November 15, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29138675/benign-effect-of-extremely-low-frequency-electromagnetic-field-on-brain-plasticity-assessed-by-nitric-oxide-metabolism-during-poststroke-rehabilitation
#3
Natalia Cichoń, Piotr Czarny, Michał Bijak, Elżbieta Miller, Tomasz Śliwiński, Janusz Szemraj, Joanna Saluk-Bijak
Nitric oxide (NO) is one of the most important signal molecules, involved in both physiological and pathological processes. As a neurotransmitter in the central nervous system, NO regulates cerebral blood flow, neurogenesis, and synaptic plasticity. The aim of our study was to investigate the effect of the extremely low-frequency electromagnetic field (ELF-EMF) on generation and metabolism of NO, as a neurotransmitter, in the rehabilitation of poststroke patients. Forty-eight patients were divided into two groups: ELF-EMF and non-ELF-EMF...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29133703/cns-small-vessel-vasculitis-distinct-mri-features-and-histopathological-correlation
#4
Kamble J Harsha, Sujit A Jagtap, Tirur R Kapilamoorthy, Chandrasekharan Kesavadas, Bejoy Thomas, Neelima Radhakrishnan
BACKGROUND: Central nervous system (CNS) vasculitis is an uncommon disease, which is a diagnostic and therapeutic challenge for physicians. Large and medium vessel vasculitis is relatively easy to diagnose by angiogram compared to small vessel vasculitis, where angiograms are often normal; imaging features described till date are sensitive but not specific. PURPOSE: Here, we describe distinct magnetic resonance (MR) imaging features of CNS small vessel vasculitis...
November 2017: Neurology India
https://www.readbyqxmd.com/read/29126016/go-and-stop-signals-for-glial-regeneration
#5
REVIEW
Alicia Hidalgo, Ann Logan
The regenerative response of ensheating glia to central nervous system (CNS) injury involves proliferation and differentiation, axonal re-enwrapment and some recovery of behaviour. Understanding this limited response could enable the enhancement of it. In Drosophila, the glial progenitor state is maintained by Notch, an activator of cell division and Prospero (Pros), a repressor. Injury provokes the activation of NFκB and up-regulation of Kon-tiki (Kon), driving cell proliferation. Homeostatic switch-off comes about as two negative feedback loops involving Pros terminate the response...
November 7, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29124763/neuronal-expression-of-brain-derived-neurotrophicfactor-in-the-injured-telencephalon-of-adult-zebrafish
#6
Pietro Cacialli, Livia D'Angelo, Olivier Kah, Pascal Coumailleau, Marie-Madeleine Gueguen, Elisabeth Pellegrini, Carla Lucini
The reparative ability of the central nervous system varies widely in the animal kingdom. In the mammalian brain, the regenerative mechanisms are very limited and newly formed neurons do not survive longer, probably due to a non-suitable local environment. On the opposite, fish can repair the brain after injury, with fast and complete recovery of damaged area. The brain of zebrafish, a teleost fish widely used as vertebrate model, also possesses high regenerative properties after injury. Taking advantage of this relevant model, the aim of the present study was to investigate the role of Brain-derived neurotrophic factor (BDNF) in the regenerative ability of adult brain, after stab wound telencephalic injury...
November 10, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/29118921/resveratrol-improves-neuron-protection-and-functional-recovery-through-enhancement-of-autophagy-after-spinal-cord-injury-in-mice
#7
Jinquan Hu, Hui Han, Peng Cao, Wenchao Yu, Chen Yang, Yang Gao, Wen Yuan
Resveratrol (Res), a natural phenolic compound, has been proven to have a wide variety of beneficial health effects. For example, resveratrol has neuroprotective effects in different central nervous system diseases. However, the mechanisms underlying resveratrol neuroprotection in spinal cord injury (SCI) remain unclear. In this study, we showed that resveratrol treatment improved the restoration of locomotor function, and decreased the degeneration of neurons in SCI mice, which was paralleled by a reduction of apoptosis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29118716/etiology-and-recovery-of-neuromuscular-fatigue-following-competitive-soccer-match-play
#8
Callum G Brownstein, Jack P Dent, Paul Parker, Kirsty M Hicks, Glyn Howatson, Stuart Goodall, Kevin Thomas
Aim: Previous research into the etiology of neuromuscular fatigue following competitive soccer match-play has primarily focused on peripheral perturbations, with limited research assessing central nervous system function in the days post-match. The aim of the present study was to examine the contribution and time-course of recovery of central and peripheral factors toward neuromuscular fatigue following competitive soccer match-play. Methods: Sixteen male semi-professional soccer players completed a 90-min soccer match...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29114585/the-influence-of-retinoic-acid-on-the-human-oligodendrocyte-precursor-cells-by-rna-sequencing
#9
Sun Young Kim, Eve E Kelland, Ji Hong Kim, Brett T Lund, Xiao Chang, Kai Wang, Leslie P Weiner
Retinoic acid (RA), a metabolite of vitamin A, has been found to influence regeneration in the adult central nervous system (CNS). There may be an effect of RA in the recovery/repair in multiple sclerosis (MS), an autoimmune and neurodegenerative disease of the CNS. We hypothesized that RA is a regulator of the further differentiation of oligodendrocyte precursor cells (OPCs) - cells key to the remyelination process in MS. We conducted studies utilizing RNA-sequencing in human embryonic stem cell (hESC)-derived neural stem cells (NSCs) and OPCs so as to understand the role of transcriptional regulators during transition from both ESCs to NSCs and NSCs to OPCs...
March 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/29114398/multi-system-manifestations-of-mycoplasma-pneumoniae-infection-in-a-young-patient
#10
Ibrahim Al Busaidi, Mohammed Al-Amin, Shadin Ibrahim, Abdullah Balkhair, Zied Gaifer
Introduction.Mycoplasma pneumoniae is a small cell-wall-lacking bacterium that belongs to the mycoplasma (Mollicutes) prokaryote micro-organisms. It is a common cause of both upper and lower respiratory tract infections in all age groups. Respiratory illness is the most common manifestation of M. pneumoniae infection; however, extrapulmonary involvement may be present or predominant. The skin, mucus membranes, central nervous system, cardiovascular system, haematopoietic system, kidneys and musculoskeletal system are the most commonly involved extrapulmonary sites...
September 2017: JMM Case Reports
https://www.readbyqxmd.com/read/29110213/correction-to-neuroimmune-response-in-ischemic-preconditioning
#11
Ashley McDonough, Jonathan R Weinstein
Ischemic preconditioning (IPC) is a robust neuroprotective phenomenon in which a brief period of cerebral ischemia confers transient tolerance to subsequent ischemic challenge. Research on IPC has implicated cellular, molecular, and systemic elements of the immune response in this phenomenon. Potent molecular mediators of IPC include innate immune signaling pathways such as Toll-like receptors and type 1 interferons. Brain ischemia results in release of pro- and anti-inflammatory cytokines and chemokines that orchestrate the neuroinflammatory response, resolution of inflammation, and transition to neurological recovery and regeneration...
November 6, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29106981/zinc-chelation-and-klf9-knockdown-cooperatively-promote-axon-regeneration-after-optic-nerve-injury
#12
Ephraim F Trakhtenberg, Yiqing Li, Qian Feng, Janice Tso, Paul A Rosenberg, Jeffrey L Goldberg, Larry I Benowitz
The inability of axons to regenerate over long-distances in the central nervous system (CNS) limits the recovery of sensory, motor, and cognitive functions after various CNS injuries and diseases. Although pre-clinical studies have identified a number of manipulations that stimulate some degree of axon growth after CNS damage, the extent of recovery remains quite limited, emphasizing the need for improved therapies. Here, we used traumatic injury to the mouse optic nerve as a model system to test the effects of combining several treatments that have recently been found to promote axon regeneration without the risks associated with manipulating known tumor suppressors or oncogenes...
October 27, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29095439/epothilone-b-impairs-functional-recovery-after-spinal-cord-injury-by-increasing-secretion-of-macrophage-colony-stimulating-factor
#13
Liang Mao, Wei Gao, Shurui Chen, Ying Song, Changwei Song, Zipeng Zhou, Haosen Zhao, Kang Zhou, Wei Wang, Kunming Zhu, Chang Liu, Xifan Mei
The microtubule-stabilizing drug epothilone B (epoB) has shown potential value in the treatment of spinal cord injury (SCI) through diverse mechanisms. However, it remains elusive why a limited overall effect was observed. We aim to investigate the limiting factors underlying functional recovery promoted by epoB. The same SCI model treated by epoB was established as discussed previously. We used a cerebrospinal fluid (CSF) sample to assess the changes in cytokines in milieu of the SCI lesion site after epoB treatment...
November 2, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29074466/neuroprotective-assessment-of-prolonged-local-hypothermia-post-contusive-spinal-cord-injury-in-rodent-model
#14
Daniel Teh Boon Loong, Soo Min Chua, Ankshita Prasad, Ioannis Kakkos, Wenxuan Jiang, Yue Mu, Xiaogang Liu, Angelo Homayoun All
BACKGROUND CONTEXT: While general hypothermia is recognised as a clinically applicable neuroprotective intervention, acute moderate local hypothermia post-contusive Spinal Cord Injury (SCI) is being considered a more effective approach. Previously, we have investigated the feasibility and safety of inducing prolonged local hypothermia in the Central Nervous System of rodent model. PURPOSE: Here, we aimed to verify the efficacy and neuroprotective effects of 5 and 8 hours local moderate hypothermia (30±0...
October 23, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29063730/fibroblast-growth-factors-in-the-management-of-spinal-cord-injury
#15
REVIEW
Yulong Zhou, Zhouguang Wang, Jiawei Li, Xiaokun Li, Jian Xiao
Spinal cord injury (SCI) possesses a significant health and economic burden worldwide. Traumatic SCI is a devastating condition that evolves through two successive stages. Throughout each of these stages, disturbances in ionic homeostasis, local oedema, ischaemia, focal haemorrhage, free radicals stress and inflammatory response were observed. Although there are no fully restorative cures available for SCI patients, various molecular, cellular and rehabilitative therapies, such as limiting local inflammation, preventing secondary cell death and enhancing the plasticity of local circuits in the spinal cord, were described...
October 24, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29063471/granulocyte-colony-stimulating-factor-g-csf-for-the-treatment-of-spinal-cord-injury
#16
MirHojjat Khorasanizadeh, Mahsa Eskian, Alexander R Vaccaro, Vafa Rahimi-Movaghar
Spinal cord injury (SCI) is a common medical condition with a poor prognosis for recovery and catastrophic effects on a patient's quality of life. Available treatments for SCI are limited, and the evidence suggesting their harmful side effects is more consistent than any suggestion of clinical benefit. Developing novel safe and effective therapeutic options for SCI is crucial. Granulocyte colony-stimulating factor (G-CSF) is a hematopoietic cytokine with known multifaceted effects on the central nervous system...
October 23, 2017: CNS Drugs
https://www.readbyqxmd.com/read/29063242/clinical-spectrum-and-igg-subclass-analysis-of-anti-myelin-oligodendrocyte-glycoprotein-antibody-associated-syndromes-a-multicenter-study
#17
Sara Mariotto, Sergio Ferrari, Salvatore Monaco, Maria Donata Benedetti, Kathrin Schanda, Daniela Alberti, Alessia Farinazzo, Ruggero Capra, Chiara Mancinelli, Nicola De Rossi, Roberto Bombardi, Luigi Zuliani, Marco Zoccarato, Raffaella Tanel, Adriana Bonora, Marco Turatti, Massimiliano Calabrese, Alberto Polo, Antonino Pavone, Luisa Grazian, GianPietro Sechi, Elia Sechi, Daniele Urso, Rachele Delogu, Francesco Janes, Luciano Deotto, Morena Cadaldini, Maria Rachele Bianchi, Gaetano Cantalupo, Markus Reindl, Alberto Gajofatto
Anti-myelin oligodendrocyte glycoprotein antibodies (MOG-Ab) recently emerged as a potential biomarker in patients with inflammatory demyelinating diseases of the central nervous system. We here compare the clinical and laboratory findings observed in a cohort of MOG-Ab seropositive and seronegative cases and describe IgG subclass analysis results. Consecutive serum samples referred to Verona University Neuropathology Laboratory for aquaporin-4 (AQP4)-Ab and/or MOG-Ab testing were analysed between March 2014 and May 2017...
October 23, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29063229/interfacing-with-the-nervous-system-a-review-of-current-bioelectric-technologies
#18
REVIEW
Ronald Sahyouni, Amin Mahmoodi, Jefferson W Chen, David T Chang, Omid Moshtaghi, Hamid R Djalilian, Harrison W Lin
The aim of this study is to discuss the state of the art with regard to established or promising bioelectric therapies meant to alter or control neurologic function. We present recent reports on bioelectric technologies that interface with the nervous system at three potential sites-(1) the end organ, (2) the peripheral nervous system, and (3) the central nervous system-while exploring practical and clinical considerations. A literature search was executed on PubMed, IEEE, and Web of Science databases. A review of the current literature was conducted to examine functional and histomorphological effects of neuroprosthetic interfaces with a focus on end-organ, peripheral, and central nervous system interfaces...
October 23, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/29054466/astrocyte-reactivity-and-astrogliosis-after-spinal-cord-injury
#19
REVIEW
Seiji Okada, Masamitsu Hara, Kazu Kobayakawa, Yoshihiro Matsumoto, Yasuharu Nakashima
After traumatic injuries of the central nervous system (CNS), including spinal cord injury (SCI), astrocytes surrounding the lesion become reactive and typically undergo hypertrophy and process extension. These reactive astrocytes migrate centripetally to the lesion epicenter and aid in the tissue repair process, however, they eventually become scar-forming astrocytes and form a glial scar which produces axonal growth inhibitors and prevents axonal regeneration. This sequential phenotypic change has long been considered to be unidirectional and irreversible; thus glial scarring is one of the main causes of the limited regenerative capability of the CNS...
October 17, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/29046917/effects-of-an-injectable-functionalized-self-assembling-nanopeptide-hydrogel-on-angiogenesis-and-neurogenesis-for-regeneration-of-the-central-nervous-system
#20
Tzu-Wei Wang, Kai-Chieh Chang, Liang-Hsin Chen, Shih-Yung Liao, Chia-Wei Yeh, Yung-Jen Chuang
Brain injury is a devastating medical condition and represents a major health problem. Tissue and organ reconstruction have been regarded as promising therapeutic strategies. Here, we propose a regenerative methodology focusing on the provision of functionalized nanopeptide scaffolds to facilitate angiogenesis and neurogenesis at the brain injury site. The peptide RADA16-SVVYGLR undergoes self-assembly to construct an interconnected network with intertwining nanofibers, and can be controlled to display various physicochemical properties by the adjustment of microenvironmental factors such as pH and ion concentration...
November 2, 2017: Nanoscale
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