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neurogenic disorder

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https://www.readbyqxmd.com/read/28095733/decoding-crucial-lncrnas-implicated-in-neurogenesis-and-neurological-disorders
#1
R Ayana, Shailja Singh, Soumya Pati
Unraveling transcriptional heterogeneity and the labyrinthine nature of neurodevelopment can probe insights into neuropsychiatric disorders. It is noteworthy that adult neurogenesis is restricted to the Sub Ventricular and Sub Granular zones (SVZ/SGZ) of the brain. Recent studies suggest long non-coding RNAs (lncRNAs) as an avant-garde class of regulators implicated in neurodevelopment. But, paucity exists in the knowledge regarding lncRNAs in neurogenesis and their associations with neurodevelopmental defects...
January 17, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28087763/circadian-kinetics-of-cell-cycle-progression-in-adult-neurogenic-niches-of-a-diurnal-vertebrate
#2
Veronica Akle, Alexander J Stankiewicz, Vasili Kharchenko, Lili Yu, Peter V Kharchenko, Irina V Zhdanova
: The circadian system may regulate adult neurogenesis via intracellular molecular clock mechanisms or by modifying the environment of neurogenic niches, with daily variation in growth factors or nutrients depending on the animal's diurnal or nocturnal life-style. In a diurnal vertebrate, zebrafish, we studied circadian distribution of immunohistochemical markers of the cell division cycle (CDC) in five of the sixteen neurogenic niches of adult brain, the dorsal telencephalon, habenula, preoptic area, hypothalamus and cerebellum...
January 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28087734/increased-mitophagy-in-the-skeletal-muscle-of-spinal-and-bulbar-muscular-atrophy-patients
#3
Doriana Borgia, Adriana Malena, Marco Spinazzi, Maria Andrea Desbats, Leonardo Salviati, Aaron P Russell, Giovanni Miotto, Laura Tosatto, Elena Pegoraro, Gianni Sorarù, Maria Pennuto, Lodovica Vergani
Spinal and bulbar muscular atrophy (SBMA) is a neuromuscular disorder caused by polyglutamine expansion in the androgen receptor (AR) and characterized by the loss of lower motor neurons. Here we investigated pathological processes occurring in muscle biopsy specimens derived from SBMA patients and, as controls, age-matched healthy subjects and patients suffering from amyotrophic lateral sclerosis (ALS) and neurogenic atrophy. We detected atrophic fibers in the muscle of SBMA, ALS and neurogenic atrophy patients...
January 13, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28074148/apraxia-of-speech-and-cerebellar-mutism-syndrome-a-case-report
#4
E De Witte, I Wilssens, D De Surgeloose, G Dua, M Moens, J Verhoeven, M Manto, P Mariën
BACKGROUND: Cerebellar mutism syndrome (CMS) or posterior fossa syndrome (PFS) consists of a constellation of neuropsychiatric, neuropsychological and neurogenic speech and language deficits. It is most commonly observed in children after posterior fossa tumor surgery. The most prominent feature of CMS is mutism, which generally starts after a few days after the operation, has a limited duration and is typically followed by motor speech deficits. However, the core speech disorder subserving CMS is still unclear...
2017: Cerebellum & Ataxias
https://www.readbyqxmd.com/read/28062917/the-enteric-nervous-system-and-the-musculature-of-the-colon-are-altered-in-patients-with-spina-bifida-and-spinal-cord-injury
#5
Marjanne den Braber-Ymker, Martin Lammens, Michel J A M van Putten, Iris D Nagtegaal
Neurogenic bowel dysfunction occurs in a large percentage of adult patients with spina bifida (SB) and spinal cord injury (SCI), significantly affecting their quality of life. Although bowel motility is autonomously regulated by the enteric nervous system (ENS), disruption of the modulation of the ENS by extrinsic innervation as present in many patients with SB and SCI might lead to motility disorders. In order to gain insight in the pathophysiology, we studied histological changes of the neuromuscular structures in the colon of SB and SCI patients...
January 6, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28057164/role-of-pregabalin-in-management-of-pruritus-a-literature-review
#6
Nazanin Foroutan, Naemeh Nikvarz
Pruritus can be one of the distressing symptoms of many dermatologic, systemic, neurologic or psychiatric disorders. In each case, the origin of itch is in the skin and/or the nervous system. Involvement of the nervous system causes neurogenic, psychogenic or neuropathic itch. Itch sensation is transferred to the central nervous system via unmyelinated C-type nerve fibers, and many mediators and receptors engage in the its induction and transmission. Also it has been demonstrated that there are similarities and interactions between neurotransmitters and pathways of pain and itch sensation...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28050656/the-recommendations-of-a-consensus-panel-for-the-screening-diagnosis-and-treatment-of-neurogenic-orthostatic-hypotension-and-associated-supine-hypertension
#7
REVIEW
Christopher H Gibbons, Peter Schmidt, Italo Biaggioni, Camille Frazier-Mills, Roy Freeman, Stuart Isaacson, Beverly Karabin, Louis Kuritzky, Mark Lew, Phillip Low, Ali Mehdirad, Satish R Raj, Steven Vernino, Horacio Kaufmann
Neurogenic orthostatic hypotension (nOH) is common in patients with neurodegenerative disorders such as Parkinson's disease, multiple system atrophy, pure autonomic failure, dementia with Lewy bodies, and peripheral neuropathies including amyloid or diabetic neuropathy. Due to the frequency of nOH in the aging population, clinicians need to be well informed about its diagnosis and management. To date, studies of nOH have used different outcome measures and various methods of diagnosis, thereby preventing the generation of evidence-based guidelines to direct clinicians towards 'best practices' when treating patients with nOH and associated supine hypertension...
January 3, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28029397/matrin-3-variants-are-frequent-in-italian-als-patients
#8
Giuseppe Marangi, Serena Lattante, Paolo Niccolò Doronzio, Amelia Conte, Giorgio Tasca, Mauro Monforte, Agata Katia Patanella, Giulia Bisogni, Emiliana Meleo, Salvatore La Spada, Marcella Zollino, Mario Sabatelli
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by loss of motor neurons in the primary motor cortex, brainstem, and spinal cord. Recently, missense variants in MATR3 were identified in familial and sporadic ALS patients, but very few additional ALS patients have been reported so far. The p.S85C MATR3 variant was previously associated to a different phenotype, namely a distal myopathy associated with dysphagia and dysphonia. Here, we assessed the contribution of MATR3 variants in a cohort of 322 Italian ALS patients...
October 6, 2016: Neurobiology of Aging
https://www.readbyqxmd.com/read/28006856/the-thoracic-outlet-syndromes-part-2-the-arterial-venous-neurovascular-and-disputed-thoracic-outlet-syndromes
#9
Mark A Ferrante, Nicole D Ferrante
The thoracic outlet syndromes (TOSs) are a group of etiologically and clinically distinct disorders with 1 feature in common: compression of 1 or more neurovascular elements as they traverse the thoracic outlet. The medical literature reflects 5 TOSs: arterial, venous, traumatic neurovascular, true neurogenic, and disputed. Of these, the first 4 demonstrate all of the features expected of a syndrome, whereas disputed TOS does not, causing many experts doubt its existence altogether. Thus, some categorize disputed TOS as cervicoscapular pain syndrome rather than as a type of TOS...
December 22, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/28006844/the-thoracic-outlet-syndromes-part-1-overview-of-the-thoracic-outlet-syndromes-and-review-of-true-neurogenic-thoracic-outlet-syndrome
#10
Mark A Ferrante, Nicole D Ferrante
The thoracic outlet syndromes (TOSs) are a group of etiologically and clinically distinct disorders with 1 feature in common: compression of 1 or more neurovascular elements as they traverse the thoracic outlet. The medical literature reflects 5 TOSs: arterial, venous, traumatic neurovascular, true neurogenic, and disputed. Of these, the first 4 demonstrate all of the features expected of a syndrome, whereas disputed TOS does not, causing many experts to doubt its existence altogether. Thus, some categorize disputed TOS as a cervicoscapular pain syndrome rather than as a type of TOS...
December 22, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/28002866/botulinum-toxin-injections-in-musculoskeletal-disorders
#11
Ivan R B Godoy, Dean M Donahue, Martin Torriani
Botulinum toxin (BTX) is used for multiple clinical indications due to its ability to induce temporary chemodenervation and muscle paralysis. This property has supported its application in treating a variety of musculoskeletal conditions, especially those involving muscular hyperactivity and contractures such as cerebral palsy and dystonia. However, off-label use of BTX injection in other musculoskeletal disorders is gaining increased acceptance, such as in neurogenic thoracic outlet syndrome, epicondylitis, and shoulder pain after stroke...
November 2016: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/28000839/il-1%C3%AE-impedes-the-chondrogenic-differentiation-of-synovial-fluid-mesenchymal-stem-cells-in-the-human-temporomandibular-joint
#12
Wenjing Liu, Yangpeng Sun, Yiqing He, Hong Zhang, Youhua Zheng, Yu Yao, Zhiguang Zhang
Mesenchymal stem cell-based therapy has great therapeutic potential for temporomandibular joint (TMJ) cartilage repair. However, the behavior of mesenchymal stem cells in the inflammatory milieu following their delivery remains poorly understood. Synovial fluid-derived mesenchymal stem cells (SFMSCs) are a promising resource for TMJ cartilage repair, as they are easily obtained from patients with TMJ disorders (TMD). In this study, we obtained SFMSCs from patients with TMD and expanded them in vitro; we then stimulated the cells with interleukin (IL)‑8, IL-1β, IL-6, IL-10, tumor necrosis factor (TNF)-α and IL-12p...
February 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27939368/dissociating-oral-motor-capabilities-evidence-from-patients-with-movement-disorders
#13
Anja Staiger, Theresa Schölderle, Bettina Brendel, Wolfram Ziegler
Abnormal articulation rate is a frequent symptom in neurogenic speech disorders. Performance rates in speech-like or nonspeech tasks involving the vocal motor apparatus are commonly accepted predictors of speech motor function in general and of articulation rate in particular. However, theoretical arguments and behavioral observations in populations with disordered speech indicate that different oral motor behaviors may be governed by distinct mechanisms. The objective of the present study was to expand our knowledge of the relationship between speech movements, on the one hand, and speech-like and nonspeech oral motor behaviors, on the other, by using a rate paradigm...
December 8, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27924350/-use-of-intracutaneous-or-subcutaneous-botulinum-toxin-for-postherpetic-neuralgia
#14
L Halb, B J Amann, H Bornemann-Cimenti
BACKGROUND: Botulinum neurotoxin (BoNT), a toxin of the anaerobic spore-forming bacterium Clostridium botulinum is used as a drug for alleviating muscle spasticity. Other indications include the cosmetic application in facial muscles, hyperhidrosis and neurogenic bladder disorders. It has been approved since 2010 as the first prophylactic treatment for chronic migraine. The analgesic effect of BoNT was observed early on and is currently the subject of intensive research. Painful postherpetic neuralgia is a common complication of an infection with herpes zoster virus...
December 6, 2016: Der Nervenarzt
https://www.readbyqxmd.com/read/27917533/human-spinal-ejaculation-generator
#15
Clément Chéhensse, Patricia Facchinetti, Stéphane Bahrami, Philippe Andrey, Jean-Marc Soler, Fabrice Chrétien, Jacques Bernabé, Pierre Clément, Pierre Denys, François Giuliano
OBJECTIVE: A spinal ejaculation generator (SEG) has been identified in the rat with lumbar galaninergic interneurons playing a pivotal role (Science 2002;297:1566-1569). The aim was to evidence a SEG in humans. METHODS: Spatial distribution of galaninergic neurons was studied in postmortem spinal cord segments of 6 men and compared with that of 6 women for evidencing sexual dimorphism. Based on the identified segmental distribution of galaninergic neurons, the ability for penile vibratory stimulation (PVS) to elicit ejaculation when the concerned spinal segments were injured was studied in 384 patients with clinically complete spinal cord injury (SCI) and consequent anejaculation...
December 5, 2016: Annals of Neurology
https://www.readbyqxmd.com/read/27917111/scale-invariant-disordered-nanotopography-promotes-hippocampal-neuron-development-and-maturation-with-involvement-of-mechanotransductive-pathways
#16
Carsten Schulte, Maddalena Ripamonti, Elisa Maffioli, Martino A Cappelluti, Simona Nonnis, Luca Puricelli, Jacopo Lamanna, Claudio Piazzoni, Alessandro Podestà, Cristina Lenardi, Gabriella Tedeschi, Antonio Malgaroli, Paolo Milani
The identification of biomaterials which promote neuronal maturation up to the generation of integrated neural circuits is fundamental for modern neuroscience. The development of neural circuits arises from complex maturative processes regulated by poorly understood signaling events, often guided by the extracellular matrix (ECM). Here we report that nanostructured zirconia surfaces, produced by supersonic cluster beam deposition of zirconia nanoparticles and characterized by ECM-like nanotopographical features, can direct the maturation of neural networks...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27916677/differential-copper-binding-to-alpha-synuclein-and-its-disease-associated-mutants-affect-the-aggregation-and-amyloid-formation
#17
Priyatosh Ranjan, Dhiman Ghosh, Deepthi S Yarramala, Subhadeep Das, Samir K Maji, Ashutosh Kumar
BACKGROUND: Copper is an essential trace element required for the proper functioning of various enzymes present in the central nervous system. An imbalance in the copper homeostasis results in the pathology of various neurodegenerative disorders including Parkinson's Disease. Hence, residue specific interaction of Cu(2+) to α-Syn along with the familial mutants H50Q and G51D needs to be studied in detail. METHODS: We investigated the residue specific mapping of Cu(2+) binding sites and binding strength using solution-state NMR and ITC respectively...
February 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27916623/multiple-beneficial-effects-of-melanocortin-mc4-receptor-agonists-in-experimental-neurodegenerative-disorders-therapeutic-perspectives
#18
REVIEW
Daniela Giuliani, Alessandra Ottani, Laura Neri, Davide Zaffe, Paolo Grieco, Jerzy Jochem, Gian Maria Cavallini, Anna Catania, Salvatore Guarini
Melanocortin peptides induce neuroprotection in acute and chronic experimental neurodegenerative conditions. Melanocortins likewise counteract systemic responses to brain injuries. Furthermore, they promote neurogenesis by activating critical signaling pathways. Melanocortin-induced long-lasting improvement in synaptic activity and neurological performance, including learning and memory, sensory-motor orientation and coordinated limb use, has been consistently observed in experimental models of acute and chronic neurodegeneration...
December 1, 2016: Progress in Neurobiology
https://www.readbyqxmd.com/read/27891557/exogenous-expression-of-nt-3-and-trkc-genes-in-bone-marrow-stromal-cells-elevated-the-survival-rate-of-the-cells-in-the-course-of-neural-differentiation
#19
Houri Edalat, Zahra Hajebrahimi, Vahid Pirhajati, Mahmoud Tavallaei, Mansoureh Movahedin, Seyed Javad Mowla
Bone marrow stromal cells (BMSCs) are attractive cellular sources for cell therapy of many diseases, specifically neurodegenerative ones. The potential capability of BMSCs could be further augmented by enhancing their neuroprotective property, differentiation potential, and survival rate subsequent to transplantation. Therefore, a concurrent upregulation of neurotrophin-3 (NT-3) and its high affinity receptor, tyrosin kinase C (TrkC), was utilized in our study. BMSCs were cotransfected with pDsRed1-N1-NT-3 and pCMX-TrkC plasmids before induction of neural differentiation...
November 28, 2016: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/27882348/humanized-neuronal-chimeric-mouse-brain-generated-by-neonatally-engrafted-human-ipsc-derived-primitive-neural-progenitor-cells
#20
Chen Chen, Woo-Yang Kim, Peng Jiang
The creation of a humanized chimeric mouse nervous system permits the study of human neural development and disease pathogenesis using human cells in vivo. Humanized glial chimeric mice with the brain and spinal cord being colonized by human glial cells have been successfully generated. However, generation of humanized chimeric mouse brains repopulated by human neurons to possess a high degree of chimerism have not been well studied. Here we created humanized neuronal chimeric mouse brains by neonatally engrafting the distinct and highly neurogenic human induced pluripotent stem cell (hiPSC)-derived rosette-type primitive neural progenitors...
November 17, 2016: JCI Insight
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