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https://www.readbyqxmd.com/read/28649105/-aging-and-homeostasis-age-associated-diseases-and-clinical-application-of-nmn-nicotinamide-mononucleotide
#1
Junichiro Irie, Hiroshi Itoh
Sirtuins are NAD(+)-dependent deacetylase and have drawn much attention as important regulators of aging and longevity. Because NAD(+) decline during the aging process, the approach to regulating aging using NAD(+) precursor such as nicotinamide mononucleotide (NMN) to replenish cellular NAD(+) through the activation of sirtuins have been investigated. In various animal models, NMN has been shown to mitigate age-associated physiological changes in liver, adipose tissue, muscle, pancreas, kidney, retina, and central nerve system...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28648089/evidence-of-activation-of-vagal-afferents-by-non-invasive-vagus-nerve-stimulation-an-electrophysiological-study-in-healthy-volunteers
#2
Romain Nonis, Kevin D'Ostilio, Jean Schoenen, Delphine Magis
Background Benefits of cervical non-invasive vagus nerve stimulation (nVNS) devices have been shown in episodic cluster headache and preliminarily suggested in migraine, but direct evidence of vagus nerve activation using such devices is lacking. Vagal somatosensory evoked potentials (vSEPs) associated with vagal afferent activation have been reported for invasive vagus nerve stimulation (iVNS) and non-invasive auricular vagal stimulation. Here, we aimed to show and characterise vSEPs for cervical nVNS. Methods vSEPs were recorded for 12 healthy volunteers who received nVNS over the cervical vagus nerve, bipolar electrode/DS7A stimulation over the inner tragus, and nVNS over the sternocleidomastoid (SCM) muscle...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28647810/distal-nerve-transfer-versus-supraclavicular-nerve-grafting-comparison-of-elbow-flexion-outcome-in-neonatal-brachial-plexus-palsy-with-c5-c7-involvement
#3
Carlos O Heise, Mario G Siqueira, Roberto S Martins, Luciano H Foroni, Hugo Sterman-Neto
PURPOSE: Ulnar and median nerve transfers to arm muscles have been used to recover elbow flexion in infants with neonatal brachial plexus palsy, but there is no direct outcome comparison with the classical supraclavicular nerve grafting approach. METHODS: We retrospectively analyzed patients with C5-C7 neonatal brachial plexus palsy submitted to nerve surgery and recorded elbow flexion recovery using the active movement scale (0-7) at 12 and 24 months after surgery...
June 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28646909/the-morphological-regeneration-and-functional-restoration-of-bladder-defects-by-a-novel-scaffold-and-adipose-derived-stem-cells-in-a-rat-augmentation-model
#4
Qiong Wang, Dong-Dong Xiao, Hao Yan, Yang Zhao, Shi Fu, Juan Zhou, Zhong Wang, Zhe Zhou, Ming Zhang, Mu-Jun Lu
BACKGROUND: Due to the multilineage differentiation ability and paracrine role of adipose-derived stem cells (ASCs) for bladder defect repair, various scaffolds have been applied in combination with ASCs to promote bladder regeneration and restore bladder function. However, the low survival rate of ASCs and the difficulty of promoting bladder functional recovery are still unsolved. To explore these problems, we investigated the feasibility of a novel scaffold seeded with ASCs in a rat model of bladder augmentation...
June 24, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28646592/influence-of-inspiratory-resistive-loading-on-expiratory-muscle-fatigue-in-healthy-humans
#5
Carli M Peters, Joseph F Welch, Paolo B Dominelli, Yannick Molgat-Seon, Lee M Romer, Donald C McKenzie, A William Sheel
Expiratory resistive loading elicits inspiratory as well as expiratory muscle fatigue, suggesting parallel co-activation of the inspiratory muscles during expiration. It is unknown whether the expiratory muscles are similarly co-activated to the point of fatigue during inspiratory resistive loading (IRL). The purpose of this study was to determine whether IRL elicits expiratory as well as inspiratory muscle fatigue. Healthy male subjects (n = 9) underwent isocapnic IRL (60% maximal inspiratory pressure, 15 breaths∙min(-1) , 0...
June 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28646510/compound-muscle-action-potential-duration-in-critical-illness-neuromyopathy
#6
Christopher L Kramer, Andrea J Boon, C Michel Harper, Brent P Goodman
BACKGROUND: We sought to determine the specificity of compound muscle action potential (CMAP) durations and amplitudes in a large critical illness neuromyopathy (CINM) cohort relative to controls with other neuromuscular conditions. METHODS: Fifty-eight patients with CINM seen over a 17-year period were retrospectively studied. Electrodiagnostic findings of the CINM cohort were compared with patients with axonal peripheral neuropathy and myopathy due to other causes...
June 23, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28645314/neuromuscular-function-during-knee-extension-exercise-after-cold-water-immersion
#7
Hitoshi Wakabayashi, Titis Wijayanto, Yutaka Tochihara
BACKGROUND: Human adaptability to cold environment has been focused on in the physiological anthropology and related research area. Concerning the human acclimatization process in the natural climate, it is necessary to conduct a research assessing comprehensive effect of cold environment and physical activities in cold. This study investigated the effect of cold water immersion on the exercise performance and neuromuscular function during maximal and submaximal isometric knee extension...
June 23, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28645175/perturbation-to-cholesterol-at-the-neuromuscular-junction-confers-botulinum-neurotoxin-a-sensitivity-to-neonatal-mice
#8
Baskaran Thyagarajan, Joseph G Potian, Joseph J McArdle, Padmamalini Baskaran
Botulinum neurotoxin A (BoNT/A) cleaves SNAP25 at the motor nerve terminals (MNT) and inhibits stimulus evoked acetylcholine release (SEAR). This causes skeletal muscle paralysis. However, younger neonatal mice (<P7; less than 7 days old) are resistant to the neuroparalytic effects of BoNT/A. That is, in vivo injection of BoNT/A at the innervations of Extensor digitorum longus (EDL) muscle in the hindlimbs inhibited the toe spread reflex within 24 hours following BoNT/A injection in adult mouse and in older (> P7) neonatal mice younger than 7 days-age remained unaffected by BoNT/A injection...
June 22, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28644548/repetitive-peripheral-magnetic-stimulation-for-activities-of-daily-living-and-functional-ability-in-people-after-stroke
#9
REVIEW
Ryo Momosaki, Naoki Yamada, Erika Ota, Masahiro Abo
BACKGROUND: Repetitive peripheral magnetic stimulation (rPMS) is a form of therapy that creates painless stimulation of deep muscle structures to improve motor function in people with physical impairment from brain or nerve disorders. Use of rPMS for people after stroke has been identified as a feasible approach to improve activities of daily living and functional ability. However, no systematic reviews have assessed the findings of available trials. The effect and safety of this intervention for people after stroke currently remain uncertain...
June 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28644430/the-clinical-landscape-for-sma-in-a-new-therapeutic-era
#10
REVIEW
K Talbot, E F Tizzano
Despite significant advances in basic research, the treatment of degenerative diseases of the nervous system remains one of the greatest challenges for translational medicine. The childhood onset motor neuron disorder spinal muscular atrophy (SMA) has been viewed as one of the more tractable targets for molecular therapy, due to a detailed understanding of the molecular genetic basis of the disease. In SMA, inactivating mutations in the SMN1 gene can be partially compensated for by limited expression of SMN protein from a variable number of copies of the SMN2 gene, which provides both a molecular explanation for phenotypic severity and a target for therapy...
June 23, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28643890/anatomical-evaluation-of-the-thoracolumbar-nerves-related-to-the-transversus-abdominis-plane-block-technique-in-the-dog
#11
F E Castañeda-Herrera, E F Buriticá-Gaviria, D F Echeverry-Bonilla
Transversus abdominis plane (TAP) is a fascial plane containing the thoracolumbar nerve branches that innervate the abdominal wall. Limited information is available on the anatomical organization of these nerve branches in the dog, which is of great importance for the success of the TAP block anaesthetic technique. The aim of this study was to describe the origin and conformation of thoracolumbar nerves running through the TAP in 20 hemi-abdominal walls of 10 adult mongrel dog cadavers with an average body weight of 12...
June 23, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28643050/application-of-transoral-continuous-intraoperative-neuromonitoring-in-natural-orifice-transluminal-endoscopic-surgery-for-thyroid-disease-a-preliminary-study
#12
Han-Kun Chen, Chun-Liang Chen, Kuo-Shan Wen, Yi-Feng Lin, Kai-Yuan Lin, Yih-Huei Uen
BACKGROUND: The novel concept of continuous intraoperative neuromonitoring (Cont-IONM) through stimulation of the vagal nerve has been used in thyroidectomies to prevent imminent injury of the recurrent laryngeal nerve (RLN). This article reports on this technology and the results of using transoral Cont-IONM in natural orifice transluminal endoscopic surgery for thyroid disease. METHODS: Cont-IONM of the RLN was achieved through automatic cyclical stimulation of the vagal nerve using a C2 monitor and delta stimulating electrode...
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28642652/diagnosis-and-treatment-of-posterior-interosseous-nerve-entrapment-systematic-review
#13
REVIEW
Marco Aurélio DE Moraes, Rubens Guilherme Gonçalves, João Baptista Gomes Dos Santos, João Carlos Belloti, Flávio Faloppa, Vinícius Ynoe DE Moraes
Compressive syndromes of the radial nerve have different presentations. There is no consensus on diagnostic and therapeutic methods. The aim of this review is to summarize such methods. Eletronic searches related terms, held in databases (1980-2016): Pubmed (via Medline), Lilacs (via Scielo) and Google Scholar. Through pre-defined protocol, we identified relevant studies. We excluded case reports. Aspects of diagnosis and treatment were synthesized for analysis and tables. Quantitative analyzes were followed by their dispersion variables...
January 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28642614/ultrasound-mediated-piezoelectric-differentiation-of-neuron-like-pc12-cells-on-pvdf-membranes
#14
Marcus Hoop, Xiang-Zhong Chen, Aldo Ferrari, Fajer Mushtaq, Gagik Ghazaryan, Theo Tervoort, Dimos Poulikakos, Bradley Nelson, Salvador Pané
Electrical and/or electromechanical stimulation has been shown to play a significant role in regenerating various functionalities in soft tissues, such as tendons, muscles, and nerves. In this work, we investigate the piezoelectric polymer polyvinylidene fluoride (PVDF) as a potential substrate for wireless neuronal differentiation. Piezoelectric PVDF enables generation of electrical charges on its surface upon acoustic stimulation, inducing neuritogenesis of PC12 cells. We demonstrate that the effect of pure piezoelectric stimulation on neurite generation in PC12 cells is comparable to the ones induced by neuronal growth factor (NGF)...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642160/a-novel-missense-variant-gln220arg-of-gnb4-encoding-guanine-nucleotide-binding-protein-subunit-beta-4-in-a-japanese-family-with-autosomal-dominant-motor-and-sensory-neuropathy
#15
Shiroh Miura, Takuya Morikawa, Ryuta Fujioka, Kazuhito Noda, Kengo Kosaka, Takayuki Taniwaki, Hiroki Shibata
Dominant intermediate Charcot-Marie-Tooth disease F (CMTDIF) is an autosomal dominant hereditary form of Charcot-Marie-Tooth disease (CMT) caused by variations in the guanine nucleotide-binding protein, subunit beta-4 gene (GNB4). We examined two Japanese familial cases with CMT. Case 1 was a 49-year-old male whose chief complaint was slowly progressive gait disturbance and limb dysesthesia that appeared at the age of 47. On neurological examination, he showed hyporeflexia or areflexia, distal limb muscle weakness, and distal sensory impairment with lower dominancy...
June 19, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28640120/working-hand-syndrome-a-new-definition-of-non-classified-polyneuropathy-condition
#16
Gökhan Özdemir
The aim of this paper was to define an unexplained non-classified polyneuropathy condition as a new neurological disease. This new diagnosis of occupation related polyneuropathy has been named as "WORKING HAND SYNDROME (WHS)."This study collected and compared clinic and electrophysiological analyze data from healthy controls, WHS patients, carpal tunnel syndrome (CTS) patients and polyneuropathy patients. The WHS patients presented to the clinic with pain, numbness, tingling, and burning sensations in their hands that increased significantly during rest and nighttime...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28640016/h2o2-induces-muscle-nociception-via-transient-receptor-potential-ankyrin-1-receptors
#17
Daisuke Sugiyama, Sinyoung Kang, Nicholas Arpey, Preeyaphan Arunakul, Yuriy M Usachev, Timothy J Brennan
BACKGROUND: H2O2 has a variety of actions in skin wounds but has been rarely studied in deep muscle tissue. Based on response to the transient receptor potential ankyrin 1 antagonists after plantar incision, we hypothesized that H2O2 exerts nociceptive effects via the transient receptor potential ankyrin 1 in muscle. METHODS: Nociceptive behaviors in rats (n = 269) and mice (n = 16) were evaluated after various concentrations and volumes of H2O2 were injected into the gastrocnemius muscle or subcutaneous tissue...
June 21, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28639940/genetic-specification-of-left-right-asymmetry-in-the-diaphragm-muscles-and-their-motor-innervation
#18
Camille Charoy, Sarah Dinvaut, Yohan Chaix, Laurette Morlé, Isabelle Sanyas, Muriel Bozon, Karine Kindbeiter, Bénédicte Durand, Jennifer M Skidmore, Lies De Groef, Motoaki Seki, Lieve Moons, Christiana Ruhrberg, James F Martin, Donna M Martin, Julien Falk, Valerie Castellani
The diaphragm muscle is essential for breathing in mammals. Its asymmetric elevation during contraction correlates with morphological features suggestive of inherent left-right (L/R) asymmetry. Whether this asymmetry is due to L versus R differences in the muscle or in the phrenic nerve activity is unknown. Here, we have combined the analysis of genetically modified mouse models with transcriptomic analysis to show that both the diaphragm muscle and phrenic nerves have asymmetries, which can be established independently of each other during early embryogenesis in pathway instructed by Nodal, a morphogen that also conveys asymmetry in other organs...
June 22, 2017: ELife
https://www.readbyqxmd.com/read/28638932/-treatment-of-recurrent-laryngeal-nerve-paralysis
#19
A H Müller
Whereas static vocal fold medialization or lateralization are currently the standard procedures, new dynamic treatment methods such as reinnervation and laryngeal pacing focus on better toning and remobilization of the paralyzed vocal folds. End-to-end or jump anastomoses of the recurrent laryngeal nerve can preserve muscle mass and avoid atrophy, thus enabling subsequent dynamic therapeutic options. Prognostic evaluation and the time point of therapeutic intervention are important issues in the management of patients with recurrent laryngeal nerve paralysis...
June 20, 2017: HNO
https://www.readbyqxmd.com/read/28638701/reinnervation-of-denervated-muscle-by-implantation-of-nerve-muscle-endplate-band-graft-to-the-native-motor-zone-of-the-target-muscle
#20
Liancai Mu, Stanislaw Sobotka, Jingming Chen, Themba Nyirenda
INTRODUCTION: Motor endplate reinnervation is critical for restoring motor function of the denervated muscle. We developed a novel surgical technique called nerve-muscle-endplate band grafting (NMEG) for muscle reinnervation. METHODS: Experimentally denervated sternomastoid muscle in the rat was reinnervated by transferring a NMEG from the ipsilateral sternohyoid muscle to the native motor zone (NMZ) of the target muscle. A NMEG pedicle contained a block of muscle (~ 6 × 6 × 3 mm), a nerve branch with axon terminals, and a motor endplate band with numerous neuromuscular junctions...
June 2017: Brain and Behavior
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