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https://www.readbyqxmd.com/read/28648117/alteration-of-sarcoplasmic-reticulum-ca-2-atpase-expression-in-lower-limb-ischemia-caused-by-atherosclerosis-obliterans
#1
J Fodor, A Gomba-Tóth, T Oláh, E Zádor, Zs Cs Tóth, I Ioannis, B Molnár, I Kovács, L Csernoch
Atherosclerosis is a disease caused by a build-up of fatty plaques and cholesterol in the arteries. The lumen of the vessels is obliterated resulting in restricted blood supply to tissues. In ischemic conditions, the cytosolic Ca(2+) level of skeletal muscle may increase, indicating the alteration of Ca(2+) removal mechanisms. Ca(2+) is transported from cytosol into the sarcoplasmic reticulum by Ca(2+) ATPase (SERCA), with its 1a isoform expressed in adult, while its 1b isoform in neonatal and regenerating fast-twitch skeletal muscle...
June 26, 2017: Physiology International
https://www.readbyqxmd.com/read/28642676/international-society-of-sports-nutrition-position-stand-protein-and-exercise
#2
REVIEW
Ralf Jäger, Chad M Kerksick, Bill I Campbell, Paul J Cribb, Shawn D Wells, Tim M Skwiat, Martin Purpura, Tim N Ziegenfuss, Arny A Ferrando, Shawn M Arent, Abbie E Smith-Ryan, Jeffrey R Stout, Paul J Arciero, Michael J Ormsbee, Lem W Taylor, Colin D Wilborn, Doug S Kalman, Richard B Kreider, Darryn S Willoughby, Jay R Hoffman, Jamie L Krzykowski, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review related to the intake of protein for healthy, exercising individuals. Based on the current available literature, the position of the Society is as follows:An acute exercise stimulus, particularly resistance exercise, and protein ingestion both stimulate muscle protein synthesis (MPS) and are synergistic when protein consumption occurs before or after resistance exercise.For building muscle mass and for maintaining muscle mass through a positive muscle protein balance, an overall daily protein intake in the range of 1...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28640774/the-difference-between-countermovement-and-squat-jump-performances-a-review-of-underlying-mechanisms-with-practical-applications
#3
Bas Van Hooren, Julia Zolotarjova
Van Hooren, B and Zolotarjova, J. The difference between countermovement and squat jump performances: a review of underlying mechanisms with practical applications. J Strength Cond Res 31(7): 2011-2020, 2017-Two movements that are widely used to monitor athletic performance are the countermovement jump (CMJ) and squat jump (SJ). Countermovement jump performance is almost always better than SJ performance, and the difference in performance is thought to reflect an effective utilization of the stretch-shortening cycle...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28631809/anabolic-steroids-for-treating-pressure-ulcers
#4
REVIEW
Cho Naing, Maxine A Whittaker
BACKGROUND: Pressure ulcers, also known as bed sores, pressure sores or decubitus ulcers develop as a result of a localised injury to the skin or underlying tissue, or both. The ulcers usually arise over a bony prominence, and are recognised as a common medical problem affecting people confined to a bed or wheelchair for long periods of time. Anabolic steroids are used as off-label drugs (drugs which are used without regulatory approval) and have been used as adjuvants to usual treatment with dressings, debridement, nutritional supplements, systemic antibiotics and antiseptics, which are considered to be supportive in healing of pressure ulcers...
June 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28623037/muscle-recruitment-and-coordination-with-an-ankle-exoskeleton
#5
Katherine M Steele, Rachel W Jackson, Benjamin R Shuman, Steven H Collins
Exoskeletons have the potential to assist and augment human performance. Understanding how users adapt their movement and neuromuscular control in response to external assistance is important to inform the design of these devices. The aim of this research was to evaluate changes in muscle recruitment and coordination for ten unimpaired individuals walking with an ankle exoskeleton. We evaluated changes in the activity of individual muscles, cocontraction levels, and synergistic patterns of muscle coordination with increasing exoskeleton work and torque...
May 18, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28621415/building-functional-units-of-movement-generation-and-movement-sensation-in-the-embryo
#6
Peleg Hasson, Talila Volk, Adi Salzberg
The musculoskeletal and proprioceptive sensory systems exhibit intricate crosstalk between force generation, force sensation and force transmission, all of which are critical for coordinated animal locomotion. Recent developmental studies of the musculoskeletal and proprioceptive units of the invertebrate Drosophila embryo, have revealed several common molecular and structural principles mediating the formation of each of these systems. These common principles, as well as the differences between the developmental programs of the two systems, are discussed...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28617826/cf2-transcription-factor-is-involved-in-the-regulation-of-mef2-rna-levels-nuclei-number-and-muscle-fiber-size
#7
Juan J Arredondo, Jorge Vivar, Sara Laine-Menéndez, Leticia Martínez-Morentin, Margarita Cervera
CF2 and Mef2 influence a variety of developmental muscle processes at distinct stages of development. Nevertheless, the exact nature of the CF2-Mef2 relationship and its effects on muscle building remain yet to be resolved. Here, we explored the regulatory role of CF2 in the Drosophila embryo muscle formation. To address this question and not having proper null CF2 mutants we exploited loss or gain of function strategies to study the contribution of CF2 to Mef2 transcription regulation and to muscle formation...
2017: PloS One
https://www.readbyqxmd.com/read/28611938/anatomic-study-of-the-vascular-perfusion-of-the-sternum-and-its-clinical-relevance-in-deep-sternal-wound-infection
#8
Nick Spindler, Florian Kaatz, Christine Feja, Christian Etz, Friedrich-Wilhelm Mohr, Ingo Bechmann, Christoph Josten, Stefan Langer, Sabine Loeffler
Introduction: Deep sternal wound infections (DSWI) are a rare but devastating complication after median sternotomy. Minor perfusion in bone and soft tissue, especially after recruiting the internal mammary artery for bypass supports the development of wound infection and nonunion of the sternal bone. The aim of the study was the macroscopic and radiological presentation of the vascular system supplying the sternum, in particular the compensating blood supply routes in the event that the internal mammary artery is no longer available after use as a bypass vessel...
2017: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/28605701/an-application-based-on-the-decision-tree-to-classify-the-marbling-of-beef-by-hyperspectral-imaging
#9
Lía Velásquez, J P Cruz-Tirado, Raúl Siche, Roberto Quevedo
The aim of this study was to develop a system to classify the marbling of beef using the hyperspectral imaging technology. The Japanese standard classification of the degree of marbling of beef was used as reference and twelve standards were digitized to obtain the parameters of shape and spatial distribution of marbling of each class. A total of 35 samples M. longissmus dorsi muscle were scanned by the hyperspectral imaging system of 400-1000 nm in reflectance mode. The wavelength of 528nm was selected to segment the sample and the background, and 440nm was used for classified the samples...
June 6, 2017: Meat Science
https://www.readbyqxmd.com/read/28595527/creatine-supplementation-and-skeletal-muscle-metabolism-for-building-muscle-mass-review-of-the-potential-mechanisms-of-action
#10
Farnaz Farshidfar, Mark A Pinder, Semone B Myrie
Creatine, a very popular supplement among athletic populations, is of growing interest for clinical applications. Since over 90% of creatine is stored in skeletal muscle, the effect of creatine supplementation on muscle metabolism is a widely studied area. While numerous studies over the past few decades have shown that creatine supplementation has many favorable effects on skeletal muscle physiology and metabolism, including enhancing muscle mass (growth/hypertrophy); the underlying mechanisms are poorly understood...
June 5, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28586096/spinal-cord-multi-parametric-magnetic-resonance-imaging-for-survival-prediction-in-amyotrophic-lateral-sclerosis
#11
G Querin, M M El Mendili, T Lenglet, S Delphine, V Marchand-Pauvert, H Benali, P-F Pradat
BACKGROUND AND PURPOSE: Assessing survival is a critical issue in patients with amyotrophic lateral sclerosis (ALS). Neuroimaging seems to be promising in the assessment of disease severity and several studies also suggest a strong relationship between spinal cord (SC) atrophy described by magnetic resonance imaging (MRI) and disease progression. The aim of the study was to determine the predictive added value of multimodal SC MRI on survival. METHODS: Forty-nine ALS patients were recruited and clinical data were collected...
June 6, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28583067/pfasum-a-substitution-matrix-from-pfam-structural-alignments
#12
Frank Keul, Martin Hess, Michael Goesele, Kay Hamacher
BACKGROUND: Detecting homologous protein sequences and computing multiple sequence alignments (MSA) are fundamental tasks in molecular bioinformatics. These tasks usually require a substitution matrix for modeling evolutionary substitution events derived from a set of aligned sequences. Over the last years, the known sequence space increased drastically and several publications demonstrated that this can lead to significantly better performing matrices. Interestingly, matrices based on dated sequence datasets are still the de facto standard for both tasks even though their data basis may limit their capabilities...
June 5, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28576271/physical-rehabilitation-for-the-management-of-canine-hip-dysplasia
#13
REVIEW
David L Dycus, David Levine, Denis J Marcellin-Little
Hip dysplasia is among the most common orthopedic conditions affecting dogs. Joint laxity is responsible for abnormal development of the femoral head and acetabulum, leading to excessive wear of the articular cartilage. Wear leads to secondary osteoarthritis. Rehabilitation is either conservative or after surgical management. Conservative rehabilitation therapies are directed at decreasing pain, improving hip range of motion (ROM), and building or maintaining muscle mass. Postoperatively, rehabilitation focuses on decreasing postoperative pain and inflammation, improving comfort and limb use, and protecting the surgical site...
July 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28567127/path-loss-measurement-and-channel-modeling-with-muscular-tissue-characteristics
#14
Yu-Ping Qin, Shuang Zhang, Hai-Yan Liu, Yi-He Liu, You-Zhi Li, Xue Peng, Xiu Ma, Qi-Li Li, Xuan Huang
BACKGROUND: The galvanic coupling intra-body communication has low radiation and strong anti-interference ability, so it has many advantages in the wireless communication. METHOD: In order to analyze the effect of muscle tissue's characteristics upon the communication channel, we selected the muscle of pig buttock as the experimental sample, and used it to study the attenuation property with the galvanic coupling intra-body communication channel along the parallel direction and the transverse direction relative to the muscular fibre line as well as on the surface of destroyed muscular fibre; the study frequency ranges from 1kHz to 10MHz...
2017: Open Biomedical Engineering Journal
https://www.readbyqxmd.com/read/28555705/role-of-anti-inflammatory-cytokines-on-muscle-mass-and-performance-changes-in-elderly-men-and-women
#15
A P Rossi, S Budui, E Zoico, C Caliari, G Mazzali, F Fantin, M D'Urbano, R Paganelli, M Zamboni
OBJECTIVES: Investigate the presence of a correlation between systemic inflammatory profile of community-dwelling individuals and the loss of muscular mass and performance in old age over a 4.5y follow-up, focusing on the role of anti-inflammatory cytokines in muscular changes in elderly. DESIGN: Longitudinal clinical study. SETTING: Subjects were randomly selected from lists of 11 general practitioners in the city of Verona, Italy. PARTICIPANTS: The study included 120 subjects, 92 women and 28 men aged 72...
2017: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/28555329/t-cells-in-allergic-asthma-key-players-beyond-the-th2-pathway
#16
REVIEW
Beatriz Leόn
Asthma is a common chronic lung disease that affects 300 million people worldwide. It causes the airways of the lungs to swell and narrow due to inflammation (swelling and excess mucus build-up in the airways) and airway constriction (tightening of the muscles surrounding the airways). Atopic asthma is the most common form of asthma, and is triggered by inhaled allergens that ultimately promote the activation of the Th2-like T cells and the development of Th2-mediated chronic inflammation. Different subsets of T cells, including T follicular helper cells, tissue-resident T, cells and Th2 effector cells, play different functions during allergic immune response...
July 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28554310/ion-channel-and-neurotransmitter-modulators-as-electroceutical-approaches-to-the-control-of-cancer
#17
Jack Tuszynski, Tatiana M Tilli, Michael Levin
The activities of individual cells must be tightly coordinated in order to build and maintain complex 3-dimensional body structures during embryogenesis and regeneration. Thus, one way to view cancer is within systems biology as a network disorder affecting the ability of cells to properly interact with a morphodynamic field of instructive signals that keeps proliferation and migration orchestrated toward the anatomical needs of the host organism. One layer of this set of instructive microenvironmental cues is bioelectrical...
May 29, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28549273/body-weight-supported-bedside-treadmill-training-facilitates-ambulation-in-icu-patients-an-interventional-proof-of-concept-study
#18
Juultje Sommers, Denise C Wieferink, Dave A Dongelmans, Frans Nollet, Raoul H H Engelbert, Marike van der Schaaf
PURPOSE: Early mobilisation is advocated to improve recovery of intensive care unit (ICU) survivors. However, severe weakness in combination with tubes, lines and machinery are practical barriers for the implementation of ambulation with critically ill patients. The aim of this study was to explore the feasibility of Body Weight-Supported Treadmill Training (BWSTT) in critically ill patients in the ICU. METHODS: A custom build bedside Body Weight-Supported Treadmill was used and evaluated in medical and surgical patients in the ICU...
May 13, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28542339/bioenergetic-profile-of-human-coronary-artery-smooth-muscle-cells-and-effect-of-metabolic-intervention
#19
Mingming Yang, Amy E Chadwick, Caroline Dart, Tomoko Kamishima, John M Quayle
Bioenergetics of artery smooth muscle cells is critical in cardiovascular health and disease. An acute rise in metabolic demand causes vasodilation in systemic circulation while a chronic shift in bioenergetic profile may lead to vascular diseases. A decrease in intracellular ATP level may trigger physiological responses while dedifferentiation of contractile smooth muscle cells to a proliferative and migratory phenotype is often observed during pathological processes. Although it is now possible to dissect multiple building blocks of bioenergetic components quantitatively, detailed cellular bioenergetics of artery smooth muscle cells is still largely unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28530462/using-yoga-nidra-to-improve-stress-in-psychiatric-nurses-in-a-pilot-study
#20
Roberta Anderson, Kristine Mammen, Padmini Paul, Allisyn Pletch, Kathleen Pulia
Given today's hurried and stressful heathcare system, nurses need mechanisms to take care of themselves, promote their own wellness, and build resilience in managing sick patients. Yoga is one such mechanism; it can decrease anxiety and improve sleep and quality of life. In this pilot study, nine nurses participated in 6 weekly sessions of yoga nidra. Measures of sleep, stress, and muscle fatigue were obtained to determine whether yoga had a positive impact upon quality of life and stress. Although based on a small sample of nurses, results indicated positive findings for both perceived stress level and muscle fatigue...
June 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
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