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https://www.readbyqxmd.com/read/28446779/functional-neuronal-differentiation-of-injury-induced-muscle-derived-stem-cell-like-cells-with-therapeutic-implications
#1
Kinga Vojnits, Haiying Pan, Xiaojing Dai, Hao Sun, Qingchun Tong, Radbod Darabi, Johnny Huard, Yong Li
Mammalian skeletal muscles contain a number of heterogeneous cell populations. Our previous study characterized a unique population of myogenic lineage stem cells that can be isolated from adult mammalian skeletal muscles upon injury. These injury-induced muscle-derived stem cell-like cells (iMuSCs) displayed a multipotent state with sensitiveness and strong migration abilities. Here, we report that these iMuSCs have the capability to form neurospheres that represent multiple neural phenotypes. The induced neuronal cells expressed various neuron-specific proteins, their mRNA expression during neuronal differentiation recapitulated embryonic neurogenesis, they generated action potentials, and they formed functional synapses in vitro...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28445518/use-of-human-fat-grafting-in-the-prevention-of-perineural-adherence-experimental-study-in-athymic-mouse
#2
Mario Cherubino, Igor Pellegatta, Alessandro Crosio, Luigi Valdatta, Stefano Geuna, Rosalba Gornati, Pierluigi Tos
Perineural adherences represent a problem after surgery involving peripheral neural system. Fat-grafting with adipose derived stem cells (ASCs) with their pro-regenerative characteristics can be important to prevent the neural damage or to facilitate the neural regeneration. Our idea was to use the fat-grafting as an anti-adherence device and test its efficacy on a postsurgical scar animal model and comparing to an antiadhesive gel. 32 athymic mice were operated under magnification, we exposed both sciatic nerves...
2017: PloS One
https://www.readbyqxmd.com/read/28444416/control-of-dna-integrity-in-skeletal-muscle-under-physiological-and-pathological-conditions
#3
REVIEW
Yara Bou Saada, Vlada Zakharova, Boris Chernyak, Carla Dib, Gilles Carnac, Svetlana Dokudovskaya, Yegor S Vassetzky
Skeletal muscle is a highly oxygen-consuming tissue that ensures body support and movement, as well as nutrient and temperature regulation. DNA damage induced by reactive oxygen species is present in muscles and tends to accumulate with age. Here, we present a summary of data obtained on DNA damage and its implication in muscle homeostasis, myogenic differentiation and neuromuscular disorders. Controlled and transient DNA damage appears to be essential for muscular homeostasis and differentiation while uncontrolled and chronic DNA damage negatively affects muscle health...
April 25, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28444094/jumping-in-aquatic-environment-after-sciatic-nerve-compression-nociceptive-evaluation-and-morphological-characteristics-of-the-soleus-muscle-of-wistar-rats
#4
Jéssica Aline Malanotte, Camila Mayumi Martin Kakihata, Jhenifer Karvat, Rose Meire Costa Brancalhão, Lucinéia de Fátima Chasko Ribeiro, Gladson Ricardo Flor Bertolini
Objective: To evaluate the effect of jumping in aquatic environment on nociception and in the soleus muscle of trained and not trained Wistar rats, in the treatment of compressive neuropathy of the sciatic nerve. Methods: Twenty-five Wistar rats were distributed into five groups: Control, Lesion, Trained + Lesion, Lesion + Exercise, and Trained + Lesion + Exercise. The training was jumping exercise in water environment for 20 days prior to injury, and treatment after the injury...
January 2017: Einstein
https://www.readbyqxmd.com/read/28440464/proteomic-profiling-of-mdx-4cv-serum-reveals-highly-elevated-levels-of-the-inflammation-induced-plasma-marker-haptoglobin-in-muscular-dystrophy
#5
Sandra Murphy, Paul Dowling, Margit Zweyer, Michael Henry, Paula Meleady, Rustam R Mundegar, Dieter Swandulla, Kay Ohlendieck
X-linked muscular dystrophy is caused by primary abnormalities in the Dmd gene and is characterized by the almost complete loss of the membrane cytoskeletal protein dystrophin, which triggers sarcolemmal instability, abnormal calcium homeostasis, increased proteolysis and impaired excitation‑contraction coupling. In addition to progressive necrosis, crucial secondary pathologies are represented by myofibrosis and the invasion of immune cells in damaged muscle fibres. In order to determine whether these substantial changes within the skeletal musculature are reflected by an altered rate of protein release into the circulatory system or other plasma fluctuations, we used label‑free mass spectrometry to characterize serum from the mdx‑4cv model of Duchenne muscular dystrophy...
April 18, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28436144/unacylated-ghrelin-enhances-satellite-cell-function-and-relieves-the-dystrophic-phenotype-in-duchenne-muscular-dystrophy-mdx-model
#6
Simone Reano, Elia Angelino, Michele Ferrara, Valeria Malacarne, Hana Sustova, Omar Sabry, Emanuela Agosti, Sara Clerici, Giulia Ruozi, Lorena Zentilin, Flavia Prodam, Stefano Geuna, Mauro Giacca, Andrea Graziani, Nicoletta Filigheddu
Muscle regeneration depends on satellite cells, quiescent precursors that, in consequence of injury or in pathological states such as muscular dystrophies, activate, proliferate, and differentiate to repair the damaged tissue. A subset of satellite cells undergoes self-renewal, thus preserving the satellite cell pool and its regenerative potential. Unacylated ghrelin (UnAG) is a circulating hormone that protects muscle from atrophy, promotes myoblast differentiation, and enhances ischemia-induced muscle regeneration...
April 24, 2017: Stem Cells
https://www.readbyqxmd.com/read/28435079/polyurethane-acrylates-as-effective-substrates-for-sustained-in-vitro-culture-of-human-myotubes
#7
Yosephine Andriani, Jason Chua Min-Wen, Benjamin Chua Yan-Jiang, Phang In Yee, Ng Shyh-Chang, Tan Wui Siew
Muscular disease has debilitating effects with severe damage leading to death. Our knowledge of muscle biology, disease and treatment is largely derived from non human cell models, even though non human cells are known to differ from human cells in their biochemical responses. Attempts to develop highly sought after in vitro human cell models have been plagued by early cell delamination and difficulties in achieving human myotube culture in vitro. In this work, we developed polyurethane acrylate (PUA) materials to support long term in vitro culture of human skeletal muscle tissue...
April 20, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28425181/effects-of-different-aerobic-exercise-frequencies-on%C3%A2-streptozotocin-nicotinamide-induced-type-2-diabetic-rats-continuous-versus-short-bouts-and-weekend-warrior-exercises
#8
Nuray Alaca, Serap Uslu, Guldal Gulec Suyen, Umit Ince, Mustafa Serteser, Hızır Kurtel
BACKGROUND: Exercise training is known to exert multiple beneficial effects on type 2 diabetes mellitus (T2DM). In this study, we aimed at exploring the effects of aerobic exercise frequencies on diabetic parameters, the histopathological structure of skeletal muscle, diabetic myopathy and mitochondrial enzyme activities in an experimental model of T2DM. METHODS: T2DM was induced by using nicotinamide (110 mg/kg) and streptozotocin (65 mg/kg) in Sprague Dawley rats (n: 35)...
April 20, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28412011/-nicolau-livedoid-dermatitis-with-severe-neurological-involvement-in-a-child
#9
F-Z Elfatoiki, A Ennajdi, W Gueddari, S Chiheb
BACKGROUND: Nicolau syndrome is a rare condition consisting in tissue ischemia and necrosis following intramuscular, intra-articular or subcutaneous injection. PATIENTS AND METHODS: Immediately after gluteal intramuscular injection of benzathine-penicillin, a 10-year-old male child presented an extensive painful violaceous lesion on the left buttock associated with urinary incontinence and left lower-limb paresis. Additional underlying muscular damage was supported by high serum levels of creatine kinase and lactate dehydrogenase...
April 12, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28409035/the-use-of-coupled-plasma-filtration-adsorption-in-traumatic-rhabdomyolysis
#10
Mario Pezzi, Silvia Renda, Anna Maria Giglio, Anna Maria Scozzafava, Simona Paola Tiburzi, Patrizia Casella, Fabrizio Iannelli, Mario Verre
Severe musculoskeletal injuries induce the release of sarcoplasmic elements such as muscle enzymes, potassium, and myoglobin in the systemic circulation. The circulating myoglobin damages the glomerulus and renal tubules. Conventional haemodialysis is not able to remove myoglobin, due to its high molecular weight (17,8 kilodaltons [kDa]). We treated four traumatic rhabdomyolysis patients with Coupled Plasma Filtration Adsorption (CPFA) in order to remove myoglobin followed by 14 hours of Continuous Veno-Venous Hemofiltration (CVVH)...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28408096/local-treatment-of-a-pharyngocutaneous-fistula-secondary-to-osteoradionecrosis
#11
Olga González-Antolín
Radionecrosis is a late, and difficult to treat,complication of radiotherapy performed on head and neck tumours, and it is difficult to treat. This process causes significant damage, not only in the skin, but also in muscular, nervous, vascular, and bone structures. This, in turn, leads to airway and digestive tract involvement, as well as a functional loss and a cosmetic defect that usually requires reconstructive surgery. Therefore, this process is associated with a significant loss in the quality of life of patients and involves a long hospital stay for treatment, as well as the necessary support measures...
April 10, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/28400725/cortical-mechanisms-of-tongue-sensorimotor-functions-in-humans-a-review-of-the-magnetoencephalography-approach
#12
REVIEW
Hitoshi Maezawa
The tongue plays important roles in a variety of critical human oral functions, including speech production, swallowing, mastication and respiration. These sophisticated tongue movements are in part finely regulated by cortical entrainment. Many studies have examined sensorimotor processing in the limbs using magnetoencephalography (MEG), which has high spatiotemporal resolution. Such studies have employed multiple methods of analysis, including somatosensory evoked fields (SEFs), movement-related cortical fields (MRCFs), event-related desynchronization/synchronization (ERD/ERS) associated with somatosensory stimulation or movement and cortico-muscular coherence (CMC) during sustained movement...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28392896/injury-to-skeletal-muscle-of-mice-following-acute-and-sub-acute-pregabalin-exposure
#13
Mohammad Moshiri, Seyed Adel Moallem, Armin Attaranzadeh, Zahra Saberi, Leila Etemad
OBJECTIVES: Pregabalin (PGB) is a new antiepileptic drug that has received FDA approval for patient who suffers from central neuropathic pain, partial seizures, generalized anxiety disorder, fibromyalgia and sleep disorders. This study was undertaken to evaluate the possible adverse effects of PGB on the muscular system of mice. MATERIALS AND METHODS: To evaluate the effect of PGB on skeletal muscle, the animals were exposed to a single dose of 1, 2 or 5 g /kg or daily doses of 20, 40 or 80 mg/kg for 21 days, intraperitoneally (IP)...
March 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28391962/su9516-increases-%C3%AE-7%C3%AE-1-integrin-and-ameliorates-disease-progression-in-the-mdx-mouse-model-of-duchenne-muscular-dystrophy
#14
Apurva Sarathy, Ryan D Wuebbles, Tatiana M Fontelonga, Ashley R Tarchione, Lesley A Mathews Griner, Dante J Heredia, Andreia M Nunes, Suzann Duan, Paul D Brewer, Tyler Van Ry, Grant W Hennig, Thomas W Gould, Andrés E Dulcey, Amy Wang, Xin Xu, Catherine Z Chen, Xin Hu, Wei Zheng, Noel Southall, Marc Ferrer, Juan Marugan, Dean J Burkin
Duchenne muscular dystrophy (DMD) is a fatal muscle disease caused by mutations in the dystrophin gene, resulting in a complete loss of the dystrophin protein. Dystrophin is a critical component of the dystrophin glycoprotein complex (DGC), which links laminin in the extracellular matrix to the actin cytoskeleton within myofibers and provides resistance to shear stresses during muscle activity. Loss of dystrophin in DMD patients results in a fragile sarcolemma prone to contraction-induced muscle damage. The α7β1 integrin is a laminin receptor protein complex in skeletal and cardiac muscle and a major modifier of disease progression in DMD...
April 5, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28386694/effect-of-alcohol-after-muscle-damaging-resistance-exercise-on-muscular-performance-recovery-and-inflammatory-capacity-in-women
#15
Danielle E Levitt, Hui-Ying Luk, Anthony A Duplanty, Brian K McFarlin, David W Hill, Jakob L Vingren
PURPOSE: To investigate the effect of acute alcohol consumption on muscular performance recovery, assessed by maximal torque production, and on inflammatory capacity, assessed by lipopolysaccharide (LPS)-stimulated cytokine production, following muscle-damaging resistance exercise in women. METHODS: Thirteen recreationally resistance-trained women completed two identical exercise bouts (300 maximal single-leg eccentric leg extensions) followed by alcohol (1.09 g ethanol kg(-1) fat-free body mass) or placebo ingestion...
April 6, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28371289/prolonged-cold-ischemia-time-results-in-local-and-remote-organ-dysfunction-in-a-murine-model-of-vascularized-composite-transplantation
#16
Néha Datta, Sean G Devaney, Ronald W Busuttil, Kodi Azari, Jerzy W Kupiec-Weglinski
Vascularized composite allotransplantation (VCA) is a viable reconstructive option for complex tissue defects. Although grafts with large muscular component may be uniquely susceptible to ischemia/reperfusion (I/R) syndrome, the safe cold ischemia time in VCA has not been established. We investigated the effects of cold ischemia on innate immune response and recipient survival in a murine orthotopic hindlimb transplantation model. Surprisingly, mice receiving grafts exposed to 6h or longer of cold storage demonstrated reduced survival and massive elevations in serum creatinine, BUN and creatine kinase, as compared to 1h of cold storage recipients...
March 30, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28361355/redox-status-alterations-during-the-competitive-season-in-%C3%A3-lite-soccer-players-focus-on-peripheral-leukocyte-derived-ros
#17
Matteo Becatti, Amanda Mannucci, Victoria Barygina, Gabriele Mascherini, Giacomo Emmi, Elena Silvestri, Daniel Wright, Niccolò Taddei, Giorgio Galanti, Claudia Fiorillo
It is well known that exercise training can deeply affect redox homeostasis by enhancing antioxidant defenses. However, exhaustive exercise can induce excessive reactive oxygen species (ROS) production, leading to oxidative stress-related tissue injury and impaired muscle contractility. Hence, ROS represent important signaling molecules whose level has to be maintained to preserve normal cellular function, but which can also accumulate in response to repetitive muscle contraction. In fact, low levels of oxidants have been suggested to be essential for muscle contraction...
March 30, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28346707/periurethral-muscle-derived-mononuclear-cell-injection-improves-urethral-sphincter-restoration-in-rats
#18
Marcelo Pitelli Turco, Alex Balduino de Souza, Isida de Campos Sousa, Paula Fratini, Mariana Matera Veras, Marcio Nogueira Rodrigues, José de Bessa, Marina Pandolphi Brolio, Katia Ramos Moreira Leite, Homero Bruschini, Miguel Srougi, Maria Angélica Miglino, Cristiano Mendes Gomes
AIMS: Investigate the effect of a novel cell-based therapy with skeletal muscle-derived mononuclear cells (SMDMCs) in a rat model of stress urinary incontinence. METHODS: Male Wistar-Kyoto rats' hind limb muscles were enzymatically dissociated, and SMDMCs were isolated without needing expansion. The cell population was characterized. Twenty female rats underwent urethrolysis. One week later, 10 rats received periurethral injection of 10(6) cells (SMDMC group), and 10 rats received saline injections (Saline group)...
March 27, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28315916/muscular-damage-in-a-patient-with-hepatitis-b-induced-by-beta-l-2-deoxythymidine-and-detected-by-18-f-fdg-pet-ct
#19
Jinhua Zi, Changyun Xu, Xuemei Zhang
A 58 years old man under 2'-Deoxy-L-thymidine treatment for his hepatitis B was admitted to our hospital complaining for the last 2 months of recurrent upper abdomen discomfort, fatigue and weight loss of 10 kilograms and general muscular soreness, for 2 weeks. He had elevated creatine kinase (CK), myoglobin, CK-MB and other related or common laboratory findings. Fluorine-18- fluorodeoxyglucose positron emission tomography/ computed tomography ((18)F-FDG PET/CT) showed a diffuse, homogenous, moderately elevated glucose uptake in all muscle groups...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28315675/low-intensity-training-and-the-c5a-complement-antagonist-nox-d21-rescue-the-mdx-phenotype-through-modulation-of-inflammation
#20
Janek Hyzewicz, Jun Tanihata, Mutsuki Kuraoka, Yuko Nitahara-Kasahara, Teiva Beylier, Urs T Ruegg, Axel Vater, Shin'ichi Takeda
Inflammatory events occurring in dystrophic muscles contribute to the progression of Duchenne muscular dystrophy (DMD). Low-intensity training (LIT) attenuates the phenotype of mdx mice, an animal model for DMD. Therefore, we postulated that LIT could have anti-inflammatory properties. We assessed levels of inflammatory cytokines and infiltrated immune cells in gastrocnemius muscle of mdx mice after LIT. We detected high levels of complement component C5a, chemokine ligand (CCL) 2, CD68(+) monocytes/macrophages, and proinflammatory M1 macrophages in muscles of mdx mice...
March 15, 2017: American Journal of Pathology
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