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Central nervous system recovery

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https://www.readbyqxmd.com/read/29774058/the-role-of-dopaminergic-immune-cell-signalling-in-poststroke-inflammation
#1
REVIEW
Daniela Talhada, Monika Rabenstein, Karsten Ruscher
Upon ischaemic stroke, brain-resident and peripheral immune cells accumulate in the central nervous system (CNS). Interestingly, these cells express pattern specific to neurotransmitter receptors and, therefore, seem to be susceptible to neurotransmitter stimulation, potentially modulating their properties and functions. One of the principal neurotransmitters in the CNS, dopamine, is involved in the regulation of processes of brain development, motor control and higher brain functions. It is constantly released in the brain and there is experimental and clinical evidence that dopaminergic signalling is involved in recovery of lost neurological function after stroke...
2018: Therapeutic Advances in Neurological Disorders
https://www.readbyqxmd.com/read/29774053/postherpes-simplex-encephalitis-a-case-series-of-viral-triggered-autoimmunity-synaptic-autoantibodies-and-response-to-therapy
#2
Harry Alexopoulos, Sofia Akrivou, Sotiria Mastroyanni, Maria Antonopoulou, Argirios Dinopoulos, Melpo Giorgi, Kostas Konstantinou, Evangelos Kouremenos, Maria Lariou, Dimitrios Naoumis, Efterpi Pavlidou, Evaggelos Pavlou, Konstantinos Voudris, Panayotis Vlachoyiannopoulos, Marinos C Dalakas
Background: Recent evidence suggests that patients with herpes simplex virus (HSV) encephalitis may relapse because of autoimmunity against the N-methyl-D-aspartate receptor (NMDAR). We present a case series of post-HSV relapsing encephalopathy associated with antibodies to central nervous system (CNS) synaptic antigens. Patient/Methods: Sera and cerebrospinal fluid (CSF) from five patients with HSV encephalitis who relapsed after antiviral therapy were tested for anti-NMDAR, gamma-aminobutyric acid b receptor (GABAbR), α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR), Leucine-rich, glioma inactivated 1 (LGI1), anti -contactin-associated protein-like 2 (CASPR2) and dipeptidyl-peptidase-like protein-6 (DDPX) antibodies using cell-based assays...
2018: Therapeutic Advances in Neurological Disorders
https://www.readbyqxmd.com/read/29768519/influence-of-growth-hormone-replacement-on-neurological-and-psychomotor-development-case-report
#3
Felipe Motta, Adriana Pasmanik Eisencraft, Lindiane Gomes Crisostomo
The height response to the use of growth hormone in short height cases has already been confirmed in the literature. The influence of the insulin-like growth factor 1 (GH-IGF1) axis components on development, function, regeneration, neuroprotection, cognition, and motor functions has been evaluated in experimental studies and in adults with central nervous system lesions. However, there is still little research on the clinical impact of hormone replacement on neurological and psychomotor development. This report presents the case of a patient with excellent weight-height recovery and, even more surprisingly, neurological and psychomotor development in response to use of growth hormone...
May 14, 2018: Einstein
https://www.readbyqxmd.com/read/29765407/effects-of-transplanted-heparin-poloxamer-hydrogel-combining-dental-pulp-stem-cells-and-bfgf-on-spinal-cord-injury-repair
#4
Lihua Luo, Abdullkhaleg Ali Albashari, Xiaoyan Wang, Ling Jin, Yanni Zhang, Lina Zheng, Jianjian Xia, Helin Xu, Yingzheng Zhao, Jian Xiao, Yan He, Qingsong Ye
Spinal cord injury (SCI) is one of serious traumatic diseases of the central nervous system and has no effective treatment because of its complicated pathophysiology. Tissue engineering strategy which contains scaffolds, cells, and growth factors can provide a promising treatment for SCI. Hydrogel that has 3D network structure and biomimetic microenvironment can support cellular growth and embed biological macromolecules for sustaining release. Dental pulp stem cells (DPSCs), derived from cranial neural crest, possess mesenchymal stem cell (MSC) characteristics and have an ability to provide neuroprotective and neurotrophic properties for SCI treatment...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29763775/glycosaminoglycan-based-hybrid-hydrogel-encapsulated-with-polyelectrolyte-complex-nanoparticles-for-endogenous-stem-cell-regulation-in-central-nervous-system-regeneration
#5
Wei-Hong Jian, Huan-Chih Wang, Chen-Hsiang Kuan, Ming-Hong Chen, Hsi-Chin Wu, Jui-Sheng Sun, Tzu-Wei Wang
The poor regenerative capability of stem cell transplantation in the central nervous system limits their therapeutic efficacy in brain injuries. The sustained inflammatory response, lack of structural support, and trophic factors deficiency restrain the integration and long-term survival of stem cells. Instead of exogenous stem cell therapy, here we described the synthesis of nanohybrid hydrogel containing sulfated glycosaminoglycan-based polyelectrolyte complex nanoparticles (PCN) to mimic the brain extracellular matrix and control the delivery of stromal-derived factor-1α (SDF-1α) and basic fibroblast factor (bFGF) in response to matrix metalloproteinase (MMP) for recruiting endogenous neural stem cells (NSC) and regulating their cellular fate...
May 8, 2018: Biomaterials
https://www.readbyqxmd.com/read/29758055/active-recovery-affects-the-recovery-of-the-corticospinal-system-but-not-of-muscle-contractile-properties
#6
Louis-Solal Giboin, Ehsan Amiri, Raphael Bertschinger, Markus Gruber
PURPOSE: Active recovery is often used by athletes after strenuous exercise or competition but its underlying mechanisms are not well understood. We hypothesized that active recovery speeds-up recovery processes within the muscle and the central nervous system (CNS). METHODS: We assessed muscular and CNS recovery by measuring the voluntary activation (VA) in the vastus lateralis muscle with transcranial magnetic stimulation (VATMS) and peripheral nerve stimulation (VAPNS) during maximal voluntary contractions (MVC) of the knee extensors in 11 subjects...
2018: PloS One
https://www.readbyqxmd.com/read/29756516/transplantation-of-a-peripheral-nerve-with-neural-stem-cells-plus-lithium-chloride-injection-promote-the-recovery-of-rat-spinal-cord-injury
#7
Li-Qun Zhang, Wen-Ming Zhang, Lingxiao Deng, Zi-Xing Xu, Wen-Bin Lan, Jian-Hua Lin
Transplantation of neural stem cells (NSCs) holds great potential for the treatment of spinal cord injury (SCI). However, transplanted NSCs poorly survive in the SCI environment. We injected NSCs into tibial nerve and transplanted tibial nerve into a hemisected spinal cord and investigated the effects of lithium chloride (LiCl) on the survival of spinal neurons, axonal regeneration, and functional recovery. Our results show that most of the transplanted NSCs expressed glial fibrillary acidic protein, while there was no obvious expression of nestin, neuronal nuclei, or acetyltransferase found in NSCs...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29749873/fatal-cryptococcal-meningitis-in-an-aids-patient-complicated-with-immune-reconstitution-syndrome-refractory-to-prolonged-amphotericin-b-treatment
#8
Thilinie D Bandaranayake, Onyema E Ogbuagu, Amit Mahajan, Alexander O Vortmeyer, Merceditas S Villanueva
Cryptococcus neoformans is a ubiquitous encapsulated environmental yeast that can cause severe central nervous system disease, primarily in immune compromised hosts. In patients with AIDS, the spectrum of cryptococcal central nervous system disease includes meningitis, cystic lesions, and mass-like cryptococcomas. We report a fatal case of meningitis and cerebritis caused by C. neoformans in an AIDS patient refractory to multiple courses of liposomal amphotericin B despite immune recovery with antiretroviral therapy...
January 1, 2018: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/29743976/cell-type-specific-mechanisms-in-the-pathogenesis-of-ischemic-stroke-the-role-of-apoptosis-signal-regulating-kinase-1
#9
REVIEW
So Yeong Cheon, Eun Jung Kim, Jeong Min Kim, Bon-Nyeo Koo
Stroke has become a more common disease worldwide. Despite great efforts to develop treatment, little is known about ischemic stroke. Cerebral ischemia activates multiple cascades of cell type-specific pathomechanisms. Ischemic brain injury consists of a complex series of cellular reactions in various cell types within the central nervous system (CNS) including platelets, endothelial cells, astrocytes, neutrophils, microglia/macrophages, and neurons. Diverse cellular changes after ischemic injury are likely to induce cell death and tissue damage in the brain...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29741115/the-role-of-biomaterials-in-implantation-for-central-nervous-system-injury
#10
Yu-Shuan Chen, Horng-Jyh Harn, Tzyy-Wen Chiou
Permanent deficits that occur in memory, sensation, and cognition can result from central nervous system (CNS) trauma that causes dysfunction and/or unregulated CNS regeneration. Some therapeutic approaches are preferentially applied to the human body. Therefore, cell transplantation, one of the therapeutic strategies, may be used to benefit people. However, poor cell viability and low efficacy are the limitations to cell transplantation strategies. Biomaterials have been widely used in several fields (e.g...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29740270/therapeutic-effect-of-platelet-rich-plasma-in-rat-spinal-cord-injuries
#11
Nan-Fu Chen, Chun-Sung Sung, Zhi-Hong Wen, Chun-Hong Chen, Chien-Wei Feng, Han-Chun Hung, San-Nan Yang, Kuan-Hao Tsui, Wu-Fu Chen
Platelet-rich plasma (PRP) is prepared by centrifuging fresh blood in an anticoagulant state, and harvesting the platelet-rich portion or condensing platelets. Studies have consistently demonstrated that PRP concentrates are an abundant source of growth factors, such as platelet-derived growth factor (PDGF), transforming growth factor β (TGF-β), insulin-like growth factor 1 (IGF-1), and epithelial growth factor (EGF). The complex mechanisms underlying spinal cord injury (SCI) diminish intrinsic repair and neuronal regeneration...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29732372/the-role-of-failing-autonomic-nervous-system-on-life-threatening-idiopathic-systemic-capillary-leak-syndrome
#12
Riccardo Colombo, Maddalena Alessandra Wu, Emanuele Catena, Andrea Perotti, Tommaso Fossali, Federico Cioffi, Roberto Rech, Antonio Castelli, Marco Cicardi
Idiopathic systemic capillary leak syndrome (ISCLS) is a rare disease that involves the endothelium and microcirculation, leading to an abrupt shift of fluids and proteins from the intravascular to the interstitial compartment. The consequence of the capillary leakage is a life-threatening hypovolemic shock that can lead to lethal multiple organ dysfunction. The autonomic nervous system (ANS) is central in regulating the cardiovascular response to hypovolemia, but ANS modulation in ISCLS has not yet been investigated...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29728852/glial-cells-shape-pathology-and-repair-after-spinal-cord-injury
#13
REVIEW
Andrew D Gaudet, Laura K Fonken
Glial cell types were classified less than 100 years ago by del Rio-Hortega. For instance, he correctly surmised that microglia in pathologic central nervous system (CNS) were "voracious monsters" that helped clean the tissue. Although these historical predictions were remarkably accurate, innovative technologies have revealed novel molecular, cellular, and dynamic physiologic aspects of CNS glia. In this review, we integrate recent findings regarding the roles of glia and glial interactions in healthy and injured spinal cord...
May 4, 2018: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29728793/metformin-protects-against-spinal-cord-injury-by-regulating-autophagy-via-the-mtor-signaling-pathway
#14
Yue Guo, Fang Wang, Haopeng Li, Hui Liang, Yuhuan Li, Zhengchao Gao, Xijing He
Spinal cord injury (SCI) is a serious central trauma, leading to severe dysfunction of motor and sensory systems. Secondary injuries, such as apoptosis and cell autophagy, significantly impact the motor function recovery process. Metformin is a widely used oral anti-diabetic agent for type 2 diabetes in the world. It has been demonstrated to promote autophagy and inhibit apoptosis in the nervous system. However, its role in recovery following SCI is still unknown. In this study, we determined that motor function, assessed using the Basso, Beattie, and Bresnahan (BBB) locomotor assessment scale, was significantly higher in rats treated with metformin following injury...
May 4, 2018: Neurochemical Research
https://www.readbyqxmd.com/read/29726694/the-role-of-the-nervous-system-in-neuromuscular-fatigue-induced-by-ultra-endurance-exercise
#15
Guillaume Y Millet, Vincent Martin, John Temesi
Ultra-endurance events are not a recent development but they have only become very popular in the last two decades, particularly ultra-marathons run on trails. The present paper reviews the role of the central nervous system (CNS) in neuromuscular fatigue induced by ultra-endurance exercise. Large decreases in voluntary activation are systematically found in ultra-endurance running but are attenuated in ultra-endurance cycling for comparable intensity and duration. This indirectly suggests that afferent feedback, rather than neurobiological changes within the CNS, is determinant in the amount of central fatigue produced...
May 4, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29722300/bridging-the-gap-axonal-fusion-drives-rapid-functional-recovery-of-the-nervous-system
#16
REVIEW
Jean-Sébastien Teoh, Michelle Yu-Ying Wong, Tarika Vijayaraghavan, Brent Neumann
Injuries to the central or peripheral nervous system frequently cause long-term disabilities because damaged neurons are unable to efficiently self-repair. This inherent deficiency necessitates the need for new treatment options aimed at restoring lost function to patients. Compared to humans, a number of species possess far greater regenerative capabilities, and can therefore provide important insights into how our own nervous systems can be repaired. In particular, several invertebrate species have been shown to rapidly initiate regeneration post-injury, allowing separated axon segments to re-join...
April 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29721326/axonal-regeneration-in-zebrafish-spinal-cord
#17
REVIEW
Sukla Ghosh, Subhra Prakash Hui
In the present review we discuss two interrelated events-axonal damage and repair-known to occur after spinal cord injury (SCI) in the zebrafish. Adult zebrafish are capable of regenerating axonal tracts and can restore full functionality after SCI. Unlike fish, axon regeneration in the adult mammalian central nervous system is extremely limited. As a consequence of an injury there is very little repair of disengaged axons and therefore functional deficit persists after SCI in adult mammals. In contrast, peripheral nervous system axons readily regenerate following injury and hence allow functional recovery both in mammals and fish...
March 2018: Regeneration
https://www.readbyqxmd.com/read/29717546/the-dorsal-column-lesion-model-of-spinal-cord-injury-and-its-use-in-deciphering-the-neuron-intrinsic-injury-response
#18
REVIEW
Callan L Attwell, Mike van Zwieten, Joost Verhaagen, Matthew Rj Mason
The neuron-intrinsic response to axonal injury differs markedly between neurons of the peripheral and central nervous system. Following a peripheral lesion a robust axonal growth program is initiated, whereas neurons of the central nervous system do not mount an effective regenerative response. Increasing the neuron-intrinsic regenerative response would therefore be one way to promote axonal regeneration in the injured central nervous system. The large diameter sensory neurons located in the dorsal root ganglia are pseudo-unipolar neurons that project one axon branch into the spinal cord, and, via the dorsal column to the brain stem, and a peripheral process to the muscles and skin...
May 1, 2018: Developmental Neurobiology
https://www.readbyqxmd.com/read/29706760/brain-motor-control-assessment-post-early-intensive-hand-rehabilitation-after-spinal-cord-injury
#19
Maryam Zoghi, Mary Galea
Background: The Brain Motor Control Assessment (BMCA) is a surface electromyography (sEMG)-based measure of motor output from the central nervous system during a variety of reflex and voluntary motor tasks. Objective: The aim of this study was to assess the pattern of voluntary movements in patients with spinal cord injury (SCI) to investigate whether BMCA could add more resolution to clinical assessments and the recovery path of these patients. Method: Ten participants were recruited from the Royal Talbot Rehabilitation Centre as part of a multicenter randomized controlled trial...
2018: Topics in Spinal Cord Injury Rehabilitation
https://www.readbyqxmd.com/read/29706150/neurosyphilis-mighty-imitator-forays-with-benign-presentation-and-unique-neuroimaging-findings
#20
Harmanpreet Tiwana, Aiesha Ahmed
Background: Common causes of temporal lobe hyper intensities are central nervous system infections like herpes simplex encephalitis, Lyme disease, limbic encephalitis and vascular pathology like Cerebral Autosomal Dominant Arteriopathy with Subcortical infarcts and Leukoencephalopathy. Methods: Personal assessment, laboratory data analysis and neuroimaging for the patient who was admitted to a central Pennsylvania tertiary care referral centre were conducted. Results: A 52-year-old male presented with a 1-year history of diffuse dysesthesia in upper and lower extremities with associated intermittent headaches and neck stiffness...
April 30, 2018: Sexual Health
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