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Muscle protein intake

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https://www.readbyqxmd.com/read/28192673/the-benefit-of-a-supplement-with-the-antioxidant-melatonin-on-redox-status-and-muscle-damage-in-resistance-trained-athletes
#1
Roberto C Leonardo-Mendonça, Javier Ocaña-Wilhelmi, Tomás de Haro, Carlos de Teresa-Galván, Eduardo Guerra-Hernández, Iryna Rusanova, Marisol Fernández-Ortiz, Ramy Ka Sayed, Germaine Escames, Darío Acuña-Castroviejo
Previous data showed that the administration of high doses of melatonin improved the circadian system in athletes. Here, we investigated in the same experimental paradigm whether the antioxidant properties of melatonin has also beneficial effects against exercise-induced oxidative stress and muscle damage in athletes. Twenty-four athletes were treated with 100 mg.day-1 of melatonin or placebo 30 min before bedtime during four weeks in a randomized double-blind scheme. Exercise intensity was higher during the study that before starting it...
February 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28183454/frailty-and-nutrition-from-epidemiological-and-clinical-evidence-to-potential-mechanisms
#2
REVIEW
Mary Yannakoulia, Eva Ntanasi, Costas A Anastasiou, Nikolaos Scarmeas
Frailty is a geriatric condition characterized by unintentional weight loss, low muscle strength, feeling of exhaustion, reduced physical activity capacity and slow walking speed. Theoretically, nutrition is a factor closely related to the frailty syndrome: all frailty criteria are more or less affected by poor eating habits, whereas frailty itself may have a negative effect on eating and, thus, on the nutritional status. Indeed, research data suggest an association between frailty and specific constituents of diet, namely protein and energy intake, as well as intakes of specific micronutrients...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28179224/dietary-protein-is-associated-with-musculoskeletal-health-independently-of-dietary-pattern-the-framingham-third-generation-study
#3
Kelsey M Mangano, Shivani Sahni, Douglas P Kiel, Katherine L Tucker, Alyssa B Dufour, Marian T Hannan
Background: Above-average dietary protein, as a single nutrient, improves musculoskeletal health. Evaluating the link between dietary protein and musculoskeletal health from a whole-diet perspective is important, as dietary guidelines focus on dietary patterns.Objective: We examined the prospective association of novel dietary protein food clusters (derived from established dietary pattern techniques) with appendicular lean mass (ALM), quadriceps strength (QS), and bone mineral density (BMD) in 2986 men and women, aged 19-72 y, from the Framingham Third Generation Study...
February 8, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28177923/protein-calorie-malnutrition-nutritional-intervention-and-personalized-cancer-care
#4
Anju Gangadharan, Sung Eun Choi, Ahmed Hassan, Nehad M Ayoub, Gina Durante, Sakshi Balwani, Young Hee Kim, Andrew Pecora, Andre Goy, K Stephen Suh
Cancer patients often experience weight loss caused by protein calorie malnutrition (PCM) during the course of the disease or treatment. PCM is expressed as severe if the patient has two or more of the following characteristics: obvious significant muscle wasting, loss of subcutaneous fat; nutritional intake of <50% of recommended intake for 2 weeks or more; bedridden or otherwise significantly reduced functional capacity; weight loss of >2% in 1 week, 5% in 1 month, or 7.5% in 3 months. Cancer anorexia-cachexia syndrome (CACS) is a multifactorial condition of advanced PCM associated with underlying illness (in this case cancer) and is characterized by loss of muscle with or without loss of fat mass...
February 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28177714/effects-of-high-protein-intake-on-bone-turnover-in-long-term-bed-rest-in-women
#5
Martina Heer, Natalie Baecker, Petra Frings-Meuthen, Sonja Graf, Sara R Zwart, Gianni Biolo, Scott M Smith
PURPOSE: Bed rest (BR) causes bone loss, even in otherwise healthy subjects. Several studies suggest that ambulatory subjects may benefit from high protein intake to stimulate protein synthesis and to maintain muscle mass. However, increasing protein intake above the recommended daily intake without adequate calcium- and potassium intake may increase bone resorption. We hypothesized that a regimen of high protein intake (HiPROT), applied in an isocaloric manner during BR with calcium and potassium intake meeting recommended values, would prevent any effect of BR on bone turnover...
January 19, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28175999/dietary-proteins-and-amino-acids-in-the-control-of-the-muscle-mass-during-immobilization-and-aging-role-of-the-mps-response
#6
REVIEW
Jason M Cholewa, Dominique Dardevet, Fernanda Lima-Soares, Kassiana de Araújo Pessôa, Paulo Henrique Oliveira, João Ricardo Dos Santos Pinho, Humberto Nicastro, Zhi Xia, Christian Emmanuel Torres Cabido, Nelo Eidy Zanchi
Dietary proteins/essential amino acids (EAAs) are nutrients with anabolic properties that may increase muscle mass or attenuate muscle loss during immobilization and aging via the stimulation of muscle protein synthesis (MPS). An EAA's anabolic threshold, capable to maximize the stimulation of MPS has been hypothesized, but during certain conditions associated with muscle loss, this anabolic threshold seems to increase which reduces the efficacy of dietary EAAs to stimulate MPS. Preliminary studies have demonstrated that acute ingestion of dietary proteins/EAA (with a sufficient amount of leucine) was capable to restore the postprandial MPS during bed rest, immobilization or aging; however, whether these improvements translate into chronic increases (or attenuates loss) of muscle mass is equivocal...
February 7, 2017: Amino Acids
https://www.readbyqxmd.com/read/28166780/effect-of-a-high-protein-diet-and-or-resistance-exercise-on-the-preservation-of-fat-free-mass-during-weight-loss-in-overweight-and-obese-older-adults-a-randomized-controlled-trial
#7
Amely M Verreijen, Mariëlle F Engberink, Robert G Memelink, Suzanne E van der Plas, Marjolein Visser, Peter J M Weijs
BACKGROUND: Intentional weight loss in obese older adults is a risk factor for accelerated muscle mass loss. We investigated whether a high protein diet and/or resistance exercise preserves fat free mass (FFM) during weight loss in overweight and obese older adults. METHODS: We included 100 overweight and obese adults (55-80 year) in a randomized controlled trial (RCT) with a 2 × 2 factorial design and intention-to-treat analysis. During a 10-week weight loss program all subjects followed a hypocaloric diet...
February 6, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28163108/consumption-of-protein-enriched-milk-has-minor-effects-on-inflammation-in-older-adults-a-12-week-double-blind-randomized-controlled-trial
#8
Gyrd O Gjevestad, Inger Ottestad, Anne Sofie Biong, Per Ole Iversen, Kjetil Retterstøl, Truls Raastad, Bjørn S Skålhegg, Stine M Ulven, Kirsten B Holven
INTRODUCTION: Aging is associated with increased levels of circulating inflammatory markers and reduced muscle mass and strength. OBJECTIVE: We investigated whether intake of protein-enriched milk for 12 weeks would influence markers of inflammation among adults≥70years of age with reduced physical strength. METHODS: In a double-blind randomized controlled intervention study, subjects were randomly allocated into two groups, receiving a protein-enriched milk (2×20g protein/d, n=14, mean (±SD) age 76...
February 2, 2017: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/28155245/scriptaid-enhances-skeletal-muscle-insulin-action-and-cardiac-function-in-obese-mice
#9
Vidhi Gaur, Timothy Connor, Kylie Venardos, Darren C Henstridge, Sheree D Martin, Courtney Swinton, Shona Morrison, Kathryn Aston-Mourney, Stefan M Gehrig, Roelof van Ewijk, Gordon S Lynch, Mark A Febbraio, Gregory R Steinberg, Mark Hargreaves, Ken R Walder, Sean L McGee
AIMS/HYPOTHESIS: Current drugs used to treat metabolic diseases such as obesity and type 2 diabetes have limited efficacy in directly normalising muscle insulin action, while exercise is effective in enhancing this aspect of metabolic disease. We recently identified Scriptaid as a compound that can replicate aspects of the exercise adaptive response, through disruption of the class IIa HDAC corepressor complex. The Aim of this study was to determine the effect of Scriptaid on muscle insulin action in obesity...
February 2, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28155181/nutrition-frailty-and-sarcopenia
#10
Alfonso J Cruz-Jentoft, Eva Kiesswetter, Michael Drey, Cornel C Sieber
Frailty and sarcopenia are important concepts in the quest to prevent physical dependence, as geriatrics are shifting towards identifications of early stages of disability. Definitions of both sarcopenia and frailty are still developing, and both concepts clearly overlap in their physical aspects. Malnutrition (both undernutrition and obesity) plays a key role in the pathogenesis of frailty and sarcopenia. The quality of the diet along the lifespan has a close relation with the incidence of both entities, and nutritional interventions may be able to reduce the incidence or revert either of them...
February 2, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28149429/physiological-nutritional-and-performance-profiles-of-brazilian-jiu-jitsu-athletes
#11
Leonardo V Andreato, Jonatas Fs Santos, João Vdc Esteves, Valeria Lg Panissa, Ursula F Julio, Emerson Franchini
This study analysed the physiological, nutritional and performance profiles of athletes practicing Brazilian jiu-jitsu. To this end, 15 athletes that practiced Brazilian jiu-jitsu (aged: 28 ± 5 years; 8 brown belts and 7 black belts; training experience: 11 ± 4 years) underwent anthropometric measurements (body composition and somatotype), dietary evaluation (24 h recall) and physical fitness tests (movement time, dynamometer handgrip, kimono grip strength, vertical jump and sit-and-reach tests). The athletes had 12...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28144165/osteosarcopenic-obesity-in-women-impact-prevalence-and-management-challenges
#12
REVIEW
Pegah JafariNasabian, Julia E Inglis, Owen J Kelly, Jasminka Z Ilich
Osteosarcopenic obesity syndrome (OSO) has recently been identified as a condition encompassing osteopenia/osteoporosis, sarcopenia and obesity. OSO is especially deleterious in older adults (even if they are not obese by conventional measures), due to age-related redistribution of fat and its infiltration into bone and muscle. Osteoporosis and bone fractures in elderly increase the risk of sarcopenia, which, through decreased mobility, increases the risk of more falls and fractures, creating a vicious cycle...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28143855/-nutraceuticals-in-relation-to-human-skeletal-muscle-and-exercise
#13
Colleen Siobhan Deane, Daniel J Wilkinson, Bethan E Phillips, Kenneth Smith, Timothy Etheridge, Philip J Atherton
Skeletal muscles have a fundamental role in locomotion and whole body metabolism, with muscle mass and quality being linked to improved health and even lifespan. Optimising nutrition in combination with exercise is considered an established, effective ergogenic practice for athletic performance. Importantly, exercise and nutritional approaches also remain arguably the most effective countermeasure for muscle dysfunction associated with ageing and numerous clinical conditions e.g. cancer cachexia, COPD and organ failure, via engendering favourable adaptations such as increased muscle mass and oxidative capacity...
January 31, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28139795/sunlight-exposure-is-just-one-of-the-factors-which-influence-vitamin-d-status
#14
M Abboud, M S Rybchyn, R Rizk, D R Fraser, R S Mason
Studies on the determinants of vitamin D status have tended to concentrate on input - exposure to ultraviolet B radiation and the limited sources in food. Yet, vitamin D status, determined by circulating concentrations of 25-hydroxyvitamin D (25(OH)D), can vary quite markedly in groups of people with apparently similar inputs of vitamin D. There are small effects of polymorphisms in the genes for key proteins involved in vitamin D production and metabolism, including 7-dehydrocholesterol reductase, which converts 7-dehydrocholesterol, the precursor of vitamin D, to cholesterol, CYP2R1, the main 25-hydroxylase of vitamin D, GC, coding for the vitamin D binding protein which transports 25(OH)D and other metabolites in blood and CYP24A1, which 24-hydroxylates both 25(OH)D and the hormone, 1,25-dihydroxyvitamin D...
January 31, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28133708/tadalafil-improves-lean-mass-and-endothelial-function-in-nonobese-men-with-mild-ed-luts-in-vivo-and-in-vitro-characterization
#15
Antonio Aversa, Simona Fittipaldi, Davide Francomano, Viviana M Bimonte, Emanuela A Greco, Clara Crescioli, Luigi Di Luigi, Andrea Lenzi, Silvia Migliaccio
PURPOSE: Phosphodiesterase type-5 inhibitor administration in diabetic men with erectile dysfunction (ED) is associated with reduced waist circumference. We evaluated potential effects of daily tadalafil administration on body composition and investigated its possible mechanism(s) of action in C2C12 skeletal muscle cells in vitro. METHODS: Forty-three men on stable caloric intake (mean age 48.5 ± 7; BMI 25.5 ± 0.9 kg/m(2)) complaining mild ED and/or low urinary tract symptoms (LUTS) were randomly assigned to receive tadalafil (TAD) 5 mg/daily (once-a-day=OAD-TAD; n = 23) or 20 mg on-demand (on-demand=OD-TAD; n = 20) for 2 months...
January 30, 2017: Endocrine
https://www.readbyqxmd.com/read/28132725/sufficient-levels-of-25-hydroxyvitamin-d-and-protein-intake-required-to-increase-muscle-mass-in-sarcopenic-older-adults-the-provide-study
#16
Sjors Verlaan, Andrea B Maier, Jürgen M Bauer, Ivan Bautmans, Kirsten Brandt, Lorenzo M Donini, Marcello Maggio, Marion E T McMurdo, Tony Mets, Chris Seal, Sander L J Wijers, Cornel Sieber, Yves Boirie, Tommy Cederholm
BACKGROUND: Inadequate nutritional intake and altered response of aging muscles to anabolic stimuli from nutrients contribute to the development of sarcopenia. Nutritional interventions show inconsistent results in sarcopenic older adults, which might be influenced by their basal nutritional status. OBJECTIVE: To test if baseline serum 25-hydroxyvitamin D (25(OH)D) concentrations and dietary protein intake influenced changes in muscle mass and function in older adults who received nutritional intervention...
January 17, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28131569/histidine-deficiency-has-a-negative-effect-on-lactational-performance-of-dairy-cows
#17
F Giallongo, M T Harper, J Oh, C Parys, I Shinzato, A N Hristov
A 10-wk randomized complete block design experiment with 24 Holstein cows was conducted to investigate the long-term effects of feeding a His-deficient diet on lactational performance of dairy cows. Cows were blocked by days in milk, milk yield, and parity, and randomly assigned to 1 of the following 2 treatments: (1) His-adequate diet [HAD; providing +166 g/d over metabolizable protein (MP) requirements, according to the National Research Council (2001) and digestible His (dHis) supply of 68 g/d, or 2.5% of MP requirements] and (2) His-deficient diet (HDD; +37 g/d over MP requirements and dHis supply of 49 g/d, or 1...
January 25, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28120474/effect-of-black-cumin-seeds-on-growth-performance-nutrient-utilisation-immunity-gut-health-and-nitrogen-excretion-by-broiler-chickens
#18
Pawan Kumar, Amlan Kumar Patra, Guru Prasad Mandal, Indranil Samanta, Saktipada Pradhan
BACKGROUND: Use of antibiotic growth promoters (AB) as feed additives in broiler chickens poses risky due to cross-resistance amongst pathogens and residues in tissues. The study aims to evaluate the supplementation of black cumin seed (BCS) as a natural growth promoter on nutrient utilisation, intestinal microbiota and morphology, immunity, anti-oxidant status, protein deposition in muscles, and nitrogen excretion by chickens. RESULTS: Broiler chickens were fed BCS at 0, 5, 10 and 20 g kg(-1) diet...
January 25, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28117137/reducing-the-dietary-acid-load-how-a-more-alkaline-diet-benefits-patients-with-chronic-kidney-disease
#19
Caroline Passey
It has been proposed that a low-protein diet will slow progression of chronic kidney disease although studies have not always supported this belief. The accepted practice is that 60% to 70% of protein comes from high biological value (HBV) protein, but this limits patient choice and patients struggle to follow the diet. When a diet with only 30% HBV protein was trialed, there was a significant increase in serum bicarbonate, and patients preferred the diet. The dietary advice given in predialysis clinics was changed...
January 20, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28116152/the-effects-of-compliance-with-nutritional-counselling-on-body-composition-parameters-in-head-and-neck-cancer-patients-under-radiotherapy
#20
D Hopanci Bicakli, O Ozkaya Akagunduz, R Meseri Dalak, M Esassolak, R Uslu, M Uyar
Background. Radiotherapy (RT) has been associated with increased risk of malnutrition in cancer patients, particularly in those with head and neck cancer (HNC). The aim of this prospective study was to evaluate the effects of compliance of patients with individual dietary counselling on body composition parameters in HNC patients under RT. Material and Methods. Sixty-nine consecutive patients (mean age: 61.0 ± 13.8) were prospectively followed. Bioelectrical impedance analysis (BIA) was performed to determine body composition parameters before, in the middle of, and at the end of RT...
2017: Journal of Nutrition and Metabolism
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