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Anna E Tschiffely, Ashraful Haque, Francis J Haran, Craig A Cunningham, Melissa L Mehalick, Todd May, Keith Stuessi, Peter B Walker, Jacob N Norris
Objective: The purpose of this study is to utilize a natural history approach to describe and understand symptom recovery in personnel diagnosed with a blast-related mild traumatic brain injury (mTBI) resulting from an improvised explosive device blast. Participants and Design: The population included military personnel who experienced a blast mTBI while mounted (vehicle; n = 176) or dismounted (on foot; n = 37) (N = 213). Patients had no co-morbid psychiatric or muscle-skeletal issues and were treated within 72 h of injury...
March 1, 2018: Military Medicine
Giovanna Trinchese, Gina Cavaliere, Chiara De Filippo, Serena Aceto, Marina Prisco, Jong Tai Chun, Eduardo Penna, Rossella Negri, Laura Muredda, Andrea Demurtas, Sebastiano Banni, Roberto Berni-Canani, Giuseppina Mattace Raso, Antonio Calignano, Rosaria Meli, Luigi Greco, Marianna Crispino, Maria P Mollica
Scope: Milk from various species differs in nutrient composition. In particular, human milk (HM) and donkey milk (DM) are characterized by a relative high level of triacylglycerol enriched in palmitic acid in sn-2 position. These dietary fats seem to exert beneficial nutritional properties through N-acylethanolamine tissue modulation. The aim of this study is to compare the effects of cow milk (CM), DM, and HM on inflammation and glucose and lipid metabolism, focusing on mitochondrial function, efficiency, and dynamics in skeletal muscle, which is the major determinant of resting metabolic rate...
2018: Frontiers in Physiology
H Lee Sweeney, David W Hammers
SUMMARYMuscle cells are designed to generate force and movement. There are three types of mammalian muscles-skeletal, cardiac, and smooth. Skeletal muscles are attached to bones and move them relative to each other. Cardiac muscle comprises the heart, which pumps blood through the vasculature. Skeletal and cardiac muscles are known as striated muscles, because the filaments of actin and myosin that power their contraction are organized into repeating arrays, called sarcomeres, that have a striated microscopic appearance...
February 1, 2018: Cold Spring Harbor Perspectives in Biology
Liang Ma, Peilin Jia, Zhongming Zhao
Recently, genome-wide association studies (GWAS) have identified 11 loci associated with adipose-related traits across different populations. However, their functional roles still remain largely unknown. In this study, we aimed to explore the splicing regulation of these GWAS signals in a tissue-specific fashion. For adipose-related GWAS signals, we selected six adipose-related tissues (adipose subcutaneous, artery tibial, blood, heart left ventricle, muscle-skeletal, and thyroid) with the sample size greater than 80 for splicing quantitative trait loci (QTL) analysis using GTEx released datasets...
January 10, 2018: Scientific Reports
Mahdi Ghorbani, Sayyed Bijan Jia, Mohsen Khosroabadi, Hamid Reza Sadoughi, Courtney Knaup
AIM: The aim of this study is to evaluate the effect of soft tissue composition on dose distribution and spread-out Bragg peak (SOBP) characteristics in proton therapy. SUBJECTS AND METHODS: Proton beams with nominal energies of 70, 120 and 210 MeV were considered. The soft tissues and tissue equivalent materials implemented in this study are: 9-component soft tissue, 4-component soft tissue, adipose tissue, muscle (skeletal), lung tissue, breast tissue, A-150 tissue equivalent plastic, perspex and water...
October 2017: Journal of Cancer Research and Therapeutics
M Kopanska, J Czech, P Zagata, L Dobrek, P Thor, G Formicki
Acrylamide is a chemical compound that typically forms in starchy food products during high-temperature cooking, including frying, baking and roasting. Acrylamide is a known lethal neurotoxin. Its discovery in some cooked starchy foods in 2002 prompted concerns about the carcinogenicity of those foods. Little is known about acrylamide's influence on the peripheral nerves. In our research we measured acrylamide's influence on the acetylcholinesterase activity in hypothalamus, heart muscle, skeletal muscles of the thigh and smooth muscle of the small intestine (males, Swiss strain) in relation to the thiol groups and malondialdehyde concentration...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Marie Sjögren, Ana I Duarte, Andrew C McCourt, Liliya Shcherbina, Nils Wierup, Maria Björkqvist
Accumulating evidence suggests altered energy metabolism as a key feature in Huntington's disease (HD) pathology. Hyper-catabolism, including weight loss and muscle atrophy, is seen in HD patients and HD mouse models. Metabolic hormones are key players, not only in energy metabolism, but also in neurodegenerative processes. Ghrelin, a gut peptide-hormone, plays an important role in regulating energy metabolism, stimulating appetite, and affects brain function and increases neuronal survival. The R6/2 mouse model of HD has previously been shown to exhibit progressive weight loss, dysregulated glucose metabolism, skeletal muscle atrophy and altered body composition...
October 24, 2017: Scientific Reports
In Je Kim, Kwi Young Kang
To evaluate the relationship between skeletal muscle mass and bone mineral density (BMD) and to determine the association between low skeletal muscle mass and low BMD in urban dwelling young adults. This study was based on data from the 2008-2011 Korea National Health and Nutrition Examination Surveys. The subjects were 1702 20-49-year-old men and 2192 premenopausal women (age 20-55 years). BMD at the lumbar spine, femoral neck, and total hip and the appendicular skeletal muscle mass (ASM) were measured by dual-energy X-ray absorptiometry...
December 2017: Calcified Tissue International
Manoel Benício Teixeira Ribeiro, Vinicius Guzzoni, Jeffrey M Hord, Gisele Nunes Lopes, Rita de Cássia Marqueti, Rosângela Vieira de Andrade, Heloisa Sobreiro Selistre-de-Araujo, João Luiz Q Durigan
Sarcopenia is a complex multifactorial process, some of which involves fat infiltration. Intramyocellular lipid (IMCL) accumulation is postulated to play a role on sarcopenia during aging, which is believed to be due alterations in glucose homeostasis in the skeletal muscle. Sarcopenia, along with intramuscular lipids, is associated with physical inactivity. Resistance training (RT) has been indicated to minimize the age-induced muscle skeletal adaptations. Thus, we aimed to investigate the effects of RT on mRNA levels of regulatory components related to intramyocellular lipid, glucose metabolism and fiber size in soleus and gastrocnemius muscles of aged rats...
August 17, 2017: Scientific Reports
Steve M Ratchford, Kaleen M Lavin, Ryan K Perkins, Bozena Jemiolo, Scott W Trappe, Todd A Trappe
Although aspirin is one of the most common anti-inflammatory drugs in the world, the effect of aspirin on human skeletal muscle inflammation is almost completely unknown. This study examined the potential effects and related time course of an orally consumed aspirin dose on the inflammatory PGE2/COX pathway in human skeletal muscle. Skeletal muscle biopsies were taken from the vastus lateralis of 10 healthy adults (5M/5F, 25±2y) before and 2, 4, and 24h after consuming a standard dose of aspirin (975mg) and partitioned for analysis of 1) in vivo PGE2 levels in resting skeletal muscle and 2) ex vivo skeletal muscle PGE2 production when stimulated with the COX substrate arachidonic acid (5μM)...
July 13, 2017: Journal of Applied Physiology
Win Kyaw Phyu, Kien Chai Ong, Kum Thong Wong
Enterovirus A71 (EV-A71) causes hand-foot-and-mouth disease (HFMD), which may be complicated by fatal encephalomyelitis. Although fecal-oral or oral-oral routes are important in person-to-person transmission, how viral shedding and exposure may predispose individuals to infection remains unknown. We investigated person-to-person transmission by using a model of HFMD and encephalomyelitis based on EV-A71 oral infection of 2-week-old hamsters. Animals (index animals) infected with 10(4) 50% cell culture infective doses of virus uniformly developed severe disease four days post-infection (dpi), whereas littermate contacts developed severe disease after six to seven days of exposure to index animals...
July 12, 2017: Emerging Microbes & Infections
Jérome Chal, Olivier Pourquié
Skeletal muscle is the largest tissue in the body and loss of its function or its regenerative properties results in debilitating musculoskeletal disorders. Understanding the mechanisms that drive skeletal muscle formation will not only help to unravel the molecular basis of skeletal muscle diseases, but also provide a roadmap for recapitulating skeletal myogenesis in vitro from pluripotent stem cells (PSCs). PSCs have become an important tool for probing developmental questions, while differentiated cell types allow the development of novel therapeutic strategies...
June 15, 2017: Development
Luciana D Silva, Tatiana Bering, Gifone A Rocha
PURPOSE OF REVIEW: The aim of this study was to review the most recent aspects of nutrition and its impact on health-related quality of life (HRQOL) in patients with chronic hepatitis C (CHC). RECENT FINDINGS: Low HRQOL scores have been found in all stages of hepatitis C virus (HCV) infection. Of the factors linked to HRQOL, three aspects should be emphasized, nutritional status, physical activity and mental health status. Regarding the nutrition and metabolic conditions, a broad spectrum of nutritional disorders may impact on HRQOL of patients with CHC...
September 2017: Current Opinion in Clinical Nutrition and Metabolic Care
Bruno P Nunes, Alexandre D P Chiavegatto Filho, Sanghamitra Pati, Doralice S Cruz Teixeira, Thaynã R Flores, Fabio A Camargo-Figuera, Tiago N Munhoz, Elaine Thumé, Luiz A Facchini, Sandro R Rodrigues Batista
OBJECTIVES: The study aims to evaluate the magnitude of multimorbidity in Brazilian adults, as well to measure their association with individual and contextual factors stratified by Brazilian states and regions. METHODS: A national-based cross-sectional study was carried out in 2013 with Brazilian adults. Multimorbidity was evaluated by a list of 22 physical and mental morbidities (based on self-reported medical diagnosis and Patient Health Questionnaire-9 for depression)...
June 9, 2017: BMJ Open
Ami Mankodi, Noura Azzabou, Thomas Bulea, Harmen Reyngoudt, Hirity Shimellis, Yupeng Ren, Eunhee Kim, Kenneth H Fischbeck, Pierre G Carlier
The purpose of this study was to examine exercise effects on muscle water T2 in patients with Duchenne muscular dystrophy (DMD). In 12 DMD subjects and 19 controls, lower leg muscle fat (%) was measured by Dixon and muscle water T2 and R2 (1/T2) by the tri-exponential model. Muscle water R2 was measured again at 3 hours after an ankle dorsiflexion exercise. The muscle fat fraction was higher in DMD participants than in controls (p < .001) except in the tibialis posterior muscle. Muscle water T2 was measured independent of the degree of fatty degeneration in DMD muscle...
August 2017: Neuromuscular Disorders: NMD
Francesco Carini, Margherita Mazzola, Chiara Fici, Salvatore Palmeri, Massimo Messina, Provvidenza Damiani, Giovanni Tomasello
BACKGROUND AND AIM OF WORK: posture is the position of the body in the space, and is controlled by a set of anatomical structures. The maintenance and the control of posture are a set of interactions between muscle-skeletal, visual, vestibular, and skin system. Lately there are numerous studies that correlate the muscle-skeletal and the maintenance of posture. In particular, the correction of defects and obstruction of temporomandibular disorders, seem to have an impact on posture. The aim of this work is to collect information in literature on posture and the influence of the stomatognathic system on postural system...
April 28, 2017: Acta Bio-medica: Atenei Parmensis
Anders Gudiksen, Henriette Pilegaard
The purpose of the present study was to examine whether lack of skeletal muscle peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC-1 α ) affects the switch in substrate utilization from a fed to fasted state and the fasting-induced pyruvate dehydrogenase (PDH) regulation in skeletal muscle. Skeletal muscle-specific PGC-1 α knockout (MKO) mice and floxed littermate controls were fed or fasted for 24 h. Fasting reduced PDHa activity, increased phosphorylation of all four known sites on PDH-E1 α and increased pyruvate dehydrogenase kinase (PDK4) and sirtuin 3 (SIRT3) protein levels, but did not alter total acetylation of PDH-E1 α Lack of muscle PGC-1 α did not affect the switch from glucose to fat oxidation in the transition from the fed to fasted state, but was associated with lower and higher respiratory exchange ratio (RER) in the fed and fasted state, respectively...
April 2017: Physiological Reports
Allison M Keeler, Donghai Liu, Marina Zieger, Lang Xiong, Jeffrey Salemi, Karl Bellvé, Barry J Byrne, David D Fuller, Ronghua ZhuGe, Mai K ElMallah
Pompe disease is an autosomal recessive disorder caused by a deficiency of acid α-glucosidase (GAA), an enzyme responsible for hydrolyzing lysosomal glycogen. Deficiency of GAA leads to systemic glycogen accumulation in the lysosomes of skeletal muscle, motor neurons, and smooth muscle. Skeletal muscle and motor neuron pathology are known to contribute to respiratory insufficiency in Pompe disease, but the role of airway pathology has not been evaluated. Here we propose that GAA enzyme deficiency disrupts the function of the trachea and bronchi and this lower airway pathology contributes to respiratory insufficiency in Pompe disease...
June 1, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
Eva Sauer, Antje Extra, Philipp Cachée, Cornelius Courts
The identification of organ tissues in traces recovered from scenes and objects with regard to violent crimes involving serious injuries can be of considerable relevance in forensic investigations. Molecular genetic approaches are provably superior to histological and immunological assays in characterizing organ tissues, and micro-RNAs (miRNAs), due to their cell type specific expression patterns and stability against degradation, emerged as a promising molecular species for forensic analyses, with a range of tried and tested indicative markers...
May 2017: Forensic Science International. Genetics
Patricia Blanco-Piñeiro, M Pino Díaz-Pereira, Aurora Martínez
OBJECTIVE: An analysis of the salient characteristics of research papers published between 1989 and 2015 that evaluate the relationship between postural quality during musical performance and various performance quality and health factors, with emphasis on musculoskeletal health variables. METHODS: Searches of Medline, Scopus and Google Scholar for papers that analysed the subject of the study objective. The following MeSH descriptors were used: posture; postural balance; muscle, skeletal; task performance and analysis; back; and spine and music...
January 2017: Journal of Bodywork and Movement Therapies
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