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Muscle protein intake

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https://www.readbyqxmd.com/read/28422532/effects-of-post-exercise-protein-intake-on-muscle-mass-and-strength-during-resistance-training-is-there-an-optimal-ratio-between-fast-and-slow-proteins
#1
Marina Fabre, Christophe Hausswirth, Eve Tiollier, Odeline Molle, Julien Louis, Alexandre Durguerian, Nathalie Neuveux, Xavier Bigard
While effects of the two classes of proteins found in milk (i.e. soluble proteins, including whey, and casein) on muscle protein synthesis have been well investigated after a single bout of resistance exercise (RE), the combined effects of these two proteins on the muscle responses to resistance training (RT) have not yet been investigated. Therefore, the aim of this study was to examine the effects of protein supplementation varying by the ratio between milk soluble proteins (fast-digested protein) and casein (slow-digested protein) on the muscle to a 9-week RT program...
April 19, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28422289/dietary-tuna-dark-muscle-protein-attenuates-hepatic-steatosis-and-increases-serum-high-density-lipoprotein-cholesterol-in-obese-type-2-diabetic-obese-kk-a-y-mice
#2
Hayato Maeda, Ryota Hosomi, Mari Fukuda, Yuki Ikeda, Munehiro Yoshida, Kenji Fukunaga
Tuna muscle consists of light and dark muscle in approximately equal proportions. However, besides for the light muscle of tuna, cod, sardine, and salmon, few researches have assessed the health-promoting functions of fish protein. Therefore, we evaluated the mechanisms underlying the alteration of lipid storage and cholesterol metabolism following the intake of tuna dark muscle protein (TDMP) by obese type-2 diabetic/obese mice. Four-week-old male KK-A(y) mice were separated into 2 dietary groups, with one group receiving a casein-based diet and the other receiving a diet with the substitution of part of the protein (50%, w/w) by TDMP (TDMP diet) for 4 wk...
April 19, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28421192/exercise-and-protein-intake-a-synergistic-approach-against-sarcopenia
#3
REVIEW
Anna Maria Martone, Emanuele Marzetti, Riccardo Calvani, Anna Picca, Matteo Tosato, Luca Santoro, Angela Di Giorgio, Antonio Nesci, Alex Sisto, Angelo Santoliquido, Francesco Landi
Sarcopenia, the age-dependent loss of muscle mass and function/strength, is increasingly recognized as a major risk factor for adverse outcomes in frail older people. As such, the skeletal muscle is a relevant target for interventions aimed at preventing or postponing the occurrence of negative health-related events in late life. The association among physical inactivity, insufficient intake of energy and protein, and poor muscle health in older adults suggests that physical exercise and targeted nutritional supplementation may offer substantial therapeutic gain against sarcopenia and its negative correlates...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28408889/effects-of-sesame-sesamum-indicum-l-supplementation-on-creatine-kinase-lactate-dehydrogenase-oxidative-stress-markers-and-aerobic-capacity-in-semi-professional-soccer-players
#4
Carlos V da Silva Barbosa, Alexandre S Silva, Caio V C de Oliveira, Nayara M L Massa, Yasmim R F de Sousa, Whyara K A da Costa, Ayice C Silva, Plínio Delatorre, Rhayane Carvalho, Valdir de Andrade Braga, Marciane Magnani
Nutritional intervention with antioxidants rich foods has been considered a strategy to minimize the effects of overtraining in athletes. This experimental, randomized, and placebo-controlled study evaluated the effects of consumption of sesame (Sesamum indicum L.) on muscle damage markers, oxidative stress, systemic inflammation, and aerobic performance in male semi-professional soccer players. Twenty athletes were randomly assigned to groups that received 40 g (two tablespoons) per day of sesame or a placebo during 28 days of regular training (exposed to routine training that includes loads of heavy training in the final half of the season)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28388381/protein-requirements-of-the-critically-ill-pediatric-patient
#5
Jorge A Coss-Bu, Jill Hamilton-Reeves, Jayshil J Patel, Claudia R Morris, Ryan T Hurt
This article includes a review of protein needs in children during health and illness, as well as a detailed discussion of protein metabolism, including nitrogen balance during critical illness, and assessment and prescription/delivery of protein to critically ill children. The determination of protein requirements in children has been difficult and challenging. The protein needs in healthy children should be based on the amount needed to ensure adequate growth during infancy and childhood. Compared with adults, children require a continuous supply of nutrients to maintain growth...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28388379/variation-in-protein-origin-and-utilization-research-and-clinical-application
#6
Douglas Paddon-Jones, Jorge A Coss-Bu, Claudia R Morris, Stuart M Phillips, Jan Wernerman
Muscle health can be rapidly compromised in clinical environments. Modifiable strategies to preserve metabolic homeostasis in adult patient populations include physical activity and pharmacologic support; however, optimizing dietary practices, or more specifically protein intake, is a necessary prerequisite for any other treatment strategy to be fully effective. Simply increasing protein intake is a well-intentioned but often unfocused strategy to protect muscle health in an intensive care setting. Protein quality is a frequently overlooked factor with the potential to differentially influence health outcomes...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28388378/protein-turnover-and-metabolism-in-the-elderly-intensive-care-unit-patient
#7
Stuart M Phillips, Roland N Dickerson, Frederick A Moore, Douglas Paddon-Jones, Peter J M Weijs
Many intensive care unit (ICU) patients do not achieve target protein intakes particularly in the early days following admittance. This period of iatrogenic protein undernutrition contributes to a rapid loss of lean, in particular muscle, mass in the ICU. The loss of muscle in older (aged >60 years) patients in the ICU may be particularly rapid due to a perfect storm of increased catabolic factors, including systemic inflammation, disuse, protein malnutrition, and reduced anabolic stimuli. This loss of muscle mass has marked consequences...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28388371/experimental-and-outcome-based-approaches-to-protein-requirements-in-the-intensive-care-unit
#8
Peter J M Weijs, Roland N Dickerson, Daren K Heyland, Frederick A Moore, Saúl J Rugeles, Stephen A McClave
Insight into protein requirements of intensive care unit (ICU) patients is urgently needed, but at present, it is unrealistic to define protein requirements for different diagnostic groups of critical illness or at different stages of illness. No large randomized controlled trials have randomized protein delivery, adequately addressed energy intake, and evaluated relevant clinical outcomes. As a pragmatic approach, experimental studies have focused on protein requirements of heterogeneous ICU patients. Data are scarce and the absolute value of protein requirements therefore is an approximation...
April 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28387575/nutritional-considerations-for-bouldering
#9
Edward J Smith, Ryan Storey, Mayur K Ranchordas
Bouldering competitions are held up to International level and governed by the International Federation of Sport Climbing. Bouldering has been selected to feature at the 2020 Olympic Games in Tokyo, however, physiological qualities and nutritional requirements to optimise performance remain inadequately defined due to large gaps in the literature. The primary goals of training include optimising the capacity of the anaerobic energy systems and developing sport-specific strength, with emphasis on the isometric function of the forearm flexors responsible for grip...
April 7, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28386239/skeletal-muscle-myomir-are-differentially-expressed-by-endurance-exercise-mode-and-combined-essential-amino-acid-and-carbohydrate-supplementation
#10
Lee M Margolis, Holly L McClung, Nancy E Murphy, Christopher T Carrigan, Stefan M Pasiakos
Skeletal muscle microRNAs (myomiR) expression is modulated by exercise, however, the influence of endurance exercise mode, combined with essential amino acid and carbohydrate (EAA+CHO) supplementation are not well defined. This study determined the effects of weighted versus non-weighted endurance exercise, with or without EAA+CHO ingestion on myomiR expression and their association with muscle protein synthesis (MPS). Twenty five adults performed 90 min of metabolically-matched (2.2 VO2 L·m(-1)) load carriage (LC; performed on a treadmill wearing a vest equal to 30% of individual body mass) or cycle ergometry (CE) exercise, during which EAA+CHO (10 g EAA and 46 g CHO) or non-nutritive control (CON) drinks were consumed...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28368955/combined-carbohydrate-and-protein-ingestion-during-australian-rules-football-matches-and-training-sessions-does-not-reduce-fatigue-or-accelerate-recovery-throughout-a-week-long-junior-tournament
#11
Nathan A Lee, James W Fell, Nathan W Pitchford, Andrew H Hall, Michael D Leveritt, Cecilia M Kitic
Australian Rules football (ARF) is a physically demanding sport that can induce high levels of fatigue. Fatigue may be intensified during periods where multiple matches are played with limited recovery time. Combined carbohydrate and protein (CHO+PRO) intake during physical activity may provide performance and recovery benefits. The aim of this study was to investigate whether CHO+PRO ingestion during ARF matches and training sessions throughout a tournament would enhance performance or recovery in comparison to CHO-only ingestion...
March 31, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28368329/vitamin-a-oral-supplementation-induces-oxidative-stress-and-suppresses-il-10-and-hsp70-in-skeletal-muscle-of-trained-rats
#12
Lyvia Lintzmaier Petiz, Carolina Saibro Girardi, Rafael Calixto Bortolin, Alice Kunzler, Juciano Gasparotto, Thallita Kelly Rabelo, Cristiane Matté, José Claudio Fonseca Moreira, Daniel Pens Gelain
Exercise training intensity is the major variant that influences the relationship between exercise, redox balance, and immune response. Supplement intake is a common practice for oxidative stress prevention; the effects of vitamin A (VA) on exercise training are not yet described, even though this molecule exhibits antioxidant properties. We investigated the role of VA supplementation on redox and immune responses of adult Wistar rats subjected to swimming training. Animals were divided into four groups: sedentary, sedentary + VA, exercise training, and exercise training + VA...
April 2, 2017: Nutrients
https://www.readbyqxmd.com/read/28367976/proteomic-signature-of-muscle-fibre-hyperplasia-in-response-to-faba-bean-intake-in-grass-carp
#13
Er-Meng Yu, Hao-Fang Zhang, Zhi-Fei Li, Guang-Jun Wang, Hong-Kai Wu, Jun Xie, De-Guang Yu, Yun Xia, Kai Zhang, Wang-Bo Gong
Fish muscle growth is important for the rapidly developing global aquaculture industry, particularly with respect to production and quality. Changes in muscle fibre size are accomplished by altering the balance between protein synthesis and proteolysis. However, our understanding regarding the effects of different protein sources on fish muscle proteins is still limited. Here we report on the proteomic profile of muscle fibre hyperplasia in grass carp fed only with whole faba bean. From the results, a total of 99 significantly changed proteins after muscle hyperplasia increase were identified (p < 0...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28361840/patient-perceived-barriers-to-lifestyle-interventions-in-cirrhosis
#14
Michael Ney, Leah Gramlich, Vanessa Mathiesen, Robert J Bailey, Mark Haykowsky, Mang Ma, Juan G Abraldes, Puneeta Tandon
BACKGROUND/AIMS: Sarcopenia, muscle weakness, and physical frailty are independent predictors of mortality in cirrhosis. These adverse prognostic factors are potentially modifiable with lifestyle interventions, including adequate nutritional intake and physical activity. Our aim was to identify patient-perceived barriers and enablers to these interventions. PATIENTS AND METHODS: Adult patients with cirrhosis were prospectively recruited from two tertiary care liver clinics...
March 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28359800/baicalin-against-obesity-and-insulin-resistance-through-activation-of-akt-as160-glut4-pathway
#15
Penghua Fang, Mei Yu, Lei Zhang, Dan Wan, Mingyi Shi, Yan Zhu, Ping Bo, Zhenwen Zhang
Obesity may cause several metabolic complications, including insulin resistance and type 2 diabetes mellitus. Despite great advances in medicine, people still keep exploring novel and effective drugs for treatment of obesity and insulin resistance. The aim of this study was to survey if baicalin might ameliorate obesity-induced insulin resistance and to explore its signal mechanisms in skeletal muscles of mice. Diet-induced obese (DIO) mice were given 50 mg/kg baicalin intraperitoneally (i.p.) once a day for 21 days, and C2C12 myotubes were treated with 100, 200, 400 μM baicalin for 12 h in this study...
March 27, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28359098/attenuation-of-resting-but-not-load-mediated-protein-synthesis-in-prostate-cancer-patients-on-androgen-deprivation
#16
Erik D Hanson, André R Nelson, Daniel W D West, John A Violet, Lannie O'Keefe, Stuart M Phillips, Alan Hayes
Context: Androgen deprivation therapy (ADT) is a common prostate cancer (PCa) treatment but results in muscular atrophy. Periodic increases in muscle protein synthesis (MPS) that occur after resistance exercise or protein intake may ameliorate this muscle loss, but the impact of these anabolic stimuli during ADT is unclear. Objective: To determine the acute MPS response to whey protein supplementation with and without resistance exercise during ADT. Design: Acute response in PCa patients vs age-matched controls (CON)...
March 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28351173/effects-of-forage-feeding-versus-grain-feeding-on-the-growth-performance-and-meat-quality-of-yangzhou-geese
#17
Y Song, Y Li, S Zheng, W Dai, X Shen, Y Zhang, W Zhao, G Chang, Q Xu, G Chen
1. Highly palatable and nutritious meat products can be produced through dietary interventions. Previous studies have shown that forage feeding has a significant impact on the growth performance and nutrition of cattle in various regions, but whether the same effects can be induced in geese remains unclear. 2. A total of 360 Yangzhou goslings were divided according to body weight at 29 d old, assigned to one of 4 treatments and raised in separate pens (30 geese per pen, 3 replicates per treatment). The treatments applied were A) grazing, no grain supplemental diet, B) grazing, late grain supplemental diet (64 to 70 d), C) grazing, grain supplemental diet and D) confined, grain supplemental diet...
March 29, 2017: British Poultry Science
https://www.readbyqxmd.com/read/28346813/protein-supplementation-does-not-affect-myogenic-adaptations-to-resistance-training
#18
Paul T Reidy, Christopher S Fry, Sherry Igbinigie, Rachel R Deer, Kristofer Jennings, Mark B Cope, Ratna Mukherjea, Elena Volpi, Blake B Rasmussen
It has been proposed that protein supplementation during resistance exercise training enhances muscle hypertrophy. The degree of hypertrophy during training is controlled in part through activation of satellite cells and myonuclear accretion. PURPOSE: To determine the efficacy of protein supplementation (and the type of protein) during traditional resistance training on myofiber cross-sectional-area, satellite cell content and myonuclear addition. METHODS: Healthy young men participated in supervised whole body progressive resistance training 3d/wk for 12 weeks...
February 14, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28346572/effectiveness-of-cardiac-rehabilitation-for-prevention-and-treatment-of-sarcopenia-in-patients-with-cardiovascular-disease-a-retrospective-cross-sectional-analysis
#19
H Harada, H Kai, H Niiyama, Y Nishiyama, A Katoh, N Yoshida, Y Fukumoto, H Ikeda
OBJECTIVE: Sarcopenia is a syndrome characterized by progressive and generalized loss of skeletal muscle mass and strength, with the risk of frailty and poor quality of life. This study aimed to clarify the clinical characteristics of sarcopenia and to investigate the effects of comprehensive cardiac rehabilitation (CCR), including nutrition, physical exercise and medication, in patients with cardiovascular disease (CVD). METHODS: We retrospectively studied 322 inpatients with CVD (age 72±12 years)...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28341147/cadmium-stimulates-myofibroblast-differentiation-and-mouse-lung-fibrosis
#20
Xin Hu, Jolyn Fernandes, Dean P Jones, Young-Mi Go
Increasing evidence suggests that Cd at levels found in the human diet can cause oxidative stress and activate redox-sensitive transcription factors in inflammatory signaling. Following inflammation, tissue repair often involves activation of redox-sensitive transcription factors in fibroblasts. In lungs, epithelial barrier remodeling is required to restore gas exchange and barrier function, and aberrant myofibroblast differentiation leads to pulmonary fibrosis. Contributions of exogenous exposures, such as dietary Cd, to pulmonary fibrosis remain incompletely defined...
March 21, 2017: Toxicology
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