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Muscle protein intake

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https://www.readbyqxmd.com/read/29783856/increased-aqp7-abundance-in-skeletal-muscle-from-obese-men-with-type-2-diabetes
#1
Janne Lebeck, Esben Søndergaard, Søren Nielsen
AQP7 facilitates the transport of glycerol across cell membranes. In mice, fasting and refeeding regulate adipose tissue AQP7 abundance and a role in controlling triglyceride accumulation in adipose tissue has been proposed. AQP7 is also expressed in skeletal muscle, where its function remains to be determined. Here, the abundance of AQP7 in abdominal subcutaneous adipose tissue (SAT) and skeletal muscle was evaluated in the overnight fasted and postprandial state in eight lean and eight obese men with type 2 diabetes (T2D)...
May 21, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29779250/soy-protein-supplement-intake-for-12-months-has-no-effect-on-sexual-maturation-and-may-improve-nutritional-status-in-pre-pubertal-children
#2
Sandra M Duitama, Javier Zurita, Diana Cordoba, Paola Duran, Leopold Ilag, Wilson Mejia
AIM: To evaluate the intake of a soy protein-based supplement (SPS) and its effects on the sexual maturation and nutritional status of prepubertal children who consumed it for a year. METHODS: Healthy children (n = 51) were recruited and randomly assigned to consume the lunch fruit juice with (n = 29) or without (n = 22) addition of 45 g of a commercial soy protein-based supplement (SPS) over 12 months. Nutritional assessment including anthropometry (bodyweight, height, triceps skinfold thickness, mid-upper arm circumference), body mass index (BMI), upper arm muscle area, arm muscle circumference, upper arm area, upper arm fat area data were derived from measures using usual procedures; age and gender-specific percentiles were used as reference...
May 20, 2018: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29767729/a-comparative-study-on-the-excretion-of-urinary-metabolites-in-goats-and-sheep-to-evaluate-spot-sampling-applied-to-protein-nutrition-trials
#3
A C S Dos Santos, S A Santos, G G P Carvalho, L D S Mariz, M S L Tosto, S C Valadares Filho, J A G Azevedo
The main objective of this study was to establish a protocol to validate urine spot samples to estimate N excretion and microbial synthesis in goat and sheep; and to study factors that affect daily creatinine and purine derivatives urinary excretion. Also a performance trial was carried out to compare goat and sheep slaughtered after different feedlot periods. Twelve Boer goats (20.6 kg±3.4 initial BW) and twelve Dorper sheep (18.4 kg±2.3 initial BW), all 4-month-old, males, were used. Eight animals (four goats and four sheep) were randomly allocated to be slaughtered at 28, 56 and 84 days in feedlot...
May 15, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29758402/lactation-related-changes-in-tissue-expression-of-pedf-in-dairy-cows
#4
H Sadri, B Saremi, S Dänicke, J Rehage, M Mielenz, A Hosseini, H Sauerwein
Pigment epithelium-derived factor (PEDF) is evolving as metabolic regulatory protein. Albeit mostly considered in only pathological conditions related to excess energy intake resulting in obesity and insulin resistance, PEDF is likely to be involved in other physiological processes such as the homeorhetic adaptation of metabolism to lactation. We aimed to characterize the expression of PEDF and its association to the concomitant mobilization of body reserves during lactation in nonobese subjects. This mobilization is particularly distinct in dairy cows, and we therefore assessed the mRNA expression of PEDF and its putative receptors in different tissues in 2 trials with dairy cows fed with or without conjugated linoleic acids (CLAs)...
April 17, 2018: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29758013/selenium-dependent-antioxidant-enzymes-actions-and-properties-of-selenoproteins
#5
REVIEW
Evangelos Zoidis, Isidoros Seremelis, Nikolaos Kontopoulos, Georgios P Danezis
Unlike other essential trace elements that interact with proteins in the form of cofactors, selenium (Se) becomes co-translationally incorporated into the polypeptide chain as part of 21st naturally occurring amino acid, selenocysteine (Sec), encoded by the UGA codon. Any protein that includes Sec in its polypeptide chain is defined as selenoprotein. Members of the selenoproteins family exert various functions and their synthesis depends on specific cofactors and on dietary Se. The Se intake in productive animals such as chickens affect nutrient utilization, production performances, antioxidative status and responses of the immune system...
May 14, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29752915/increase-in-insulin-secretion-and-decrease-in-muscle-degradation-by-fat-free-milk-intake-are-attenuated-by-physical-exercise
#6
Tetsuo Yamada, Masami Matsuzaki, Akira Tanaka
BACKGROUND: Protein intake, particularly branched chain amino acids (BCAAs), and exercise have opposing actions on insulin secretion, but the same action on protein anabolism. We examined the effects of BCAA-rich fat-free milk intake and/or exercise on levels of insulin secretion and indices related to muscle protein metabolism in order to assess the potency of dietary and exercise therapies against metabolic and locomotive disorders. METHODS: Eight adult female volunteers participated in all four 24 h experiments; control diet intake with or without exercise, and fat-free milk-containing diet intake with or without exercise...
May 9, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29751507/effects-of-whey-protein-supplementation-pre-or-post-resistance-training-on-muscle-mass-muscular-strength-and-functional-capacity-in-pre-conditioned-older-women-a-randomized-clinical-trial
#7
Hellen C G Nabuco, Crisieli M Tomeleri, Paulo Sugihara Junior, Rodrigo R Fernandes, Edilaine F Cavalcante, Melissa Antunes, Alex S Ribeiro, Denilson C Teixeira, Analiza M Silva, Luís B Sardinha, Edilson S Cyrino
Aging is associated with sarcopenia and dynapenia, with both processes contributing to functional dependence and mortality in older adults. Resistance training (RT) and increased protein intake are strategies that may contribute to health improvements in older adults. Therefore, the aim was to investigate the effects of whey protein (WP) supplementation consumed either immediately pre- or post-RT on skeletal muscle mass (SMM), muscular strength, and functional capacity in pre-conditioned older women. Seventy older women participated in this investigation and were randomly assigned to one of three groups: whey protein pre-RT and placebo post-RT (WP-PLA, n = 24), placebo pre-RT and whey protein post-RT (PLA-WP, n = 23), and placebo pre- and post-RT (PLA-PLA, n = 23)...
May 3, 2018: Nutrients
https://www.readbyqxmd.com/read/29734150/association-between-increases-in-normalized-protein-catabolic-rate-and-increases-in-creatinine-generation-rate-in-dialysis-patients
#8
Norio Hanafusa, Daigo Kamei, Misao Tsukada, Naoko Miwa, Mizuki Komatsu, Shunji Shiohira, Masayuki Okazaki, Ryota Watanabe, Hiroshi Kawaguchi, Ken Tsuchiya, Kosaku Nitta
The older dialysis population is growing, and malnutrition and wasting syndrome are great concerns in this population. The management of these syndromes includes appropriate nutritional intake and physical activity. However, whether management in the form of an increase in protein intake has a beneficial effect on muscle mass has not been demonstrated. In this study, we investigated an association between changes of normalized protein catabolic rate (nPCR), as a proxy for protein intake and percent creatinine generation rate (%CGR), as a proxy for muscle mass in patients receiving hemodialysis...
2018: Contributions to Nephrology
https://www.readbyqxmd.com/read/29722584/no-difference-between-the-effects-of-supplementing-with-soy-protein-versus-animal-protein-on-gains-in-muscle-mass-and-strength-in-response-to-resistance-exercise
#9
Mark Messina, Heidi Lynch, Jared M Dickinson, Katharine E Reed
Much attention has been given to determining the influence of total protein intake and protein source on gains in lean body mass (LBM) and strength in response to resistance exercise training (RET). Acute studies indicate that whey protein, likely related to its higher leucine content, stimulates muscle protein synthesis (MPS) to a greater extent than proteins such as soy and casein. Less clear is the extent to which the type of protein supplemented impacts strength and LBM in longer term studies (≥6 weeks)...
May 3, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29718224/the-association-of-diet-and-exercise-with-body-composition-in-pediatric-crohn-s-disease
#10
Dale Lee, James D Lewis, Justine Shults, Robert N Baldassano, Jin Long, Rita Herskovitz, Babette Zemel, Mary B Leonard
Background: In pediatric Crohn's disease, fat mass improves over time with treatment, but lean mass deficits persist. This observational study of the associations of physical activity and dietary intake with lean mass and muscle strength in children with Crohn's disease was ancillary to a previously reported randomized clinical trial of an intervention to improve bone health. Methods: In this study, 138 participants were followed at baseline and at 6, 12, and 24 months with evaluation of lean and fat mass using DXA, muscle strength (peak torque), Crohn's characteristics, dietary intake, time in moderate to vigorous physical activity (MVPA), and serum insulin-like growth factor-1 (IGF-1) and tumor necrosis factor-alpha (TNF-α)...
April 27, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29708079/barriers-to-cancer-nutrition-therapy-excess-catabolism-of-muscle-and-adipose-tissues-induced-by-tumour-products-and-chemotherapy
#11
Dalton L Schiessel, Vickie E Baracos
Cancer-associated malnutrition is driven by reduced dietary intake and by underlying metabolic changes (such as inflammation, anabolic resistance, proteolysis, lipolysis and futile cycling) induced by the tumour and activated immune cells. Cytotoxic and targeted chemotherapies also elicit proteolysis and lipolysis at the tissue level. In this review, we summarise specific mediators and chemotherapy effects that provoke excess proteolysis in muscle and excess lipolysis in adipose tissue. A nutritionally relevant question is whether and to what degree these catabolic changes can be reversed by nutritional therapy...
April 30, 2018: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/29703782/adipose-and-skeletal-muscle-thermogenesis-studies-from-large-animals
#12
REVIEW
John-Paul Fuller-Jackson, Belinda A Henry
The balance between energy intake and energy expenditure establishes and preserves a 'set-point' body weight. The latter is comprised of three major components including metabolic rate, physical activity and thermogenesis. Thermogenesis is defined as the cellular dissipation of energy via heat production. This process has been extensively characterised in brown adipose tissue (BAT), wherein uncoupling protein 1 (UCP1) creates a proton leak across the inner mitochondrial membrane, diverting protons away from ATP synthesis and resulting in heat dissipation...
June 2018: Journal of Endocrinology
https://www.readbyqxmd.com/read/29702029/the-influence-of-habitual-protein-intake-on-body-composition-and-muscular-strength-in-career-firefighters
#13
Katie R Hirsch, Andrew J Tweedell, Craig R Kleinberg, Gena R Gerstner, T J Barnette, Jacob A Mota, Abbie E Smith-Ryan, Eric D Ryan
OBJECTIVE: The aim of this research was to determine the relationship among protein (PRO) intake, body composition, and muscle strength in overweight and obese firefighters. A secondary objective was to evaluate differences in body composition and muscle strength among overweight and obese firefighters with low (L; < 0.8 g·kg-1 ), moderate (M; 0.8-1.0 g·kg-1 ), and high (H; > 1.0 g·kg-1 ) PRO intake. METHODS: Relative PRO intake [r_PRO] was evaluated from 3-day dietary logs, self-reported by 43 overweight and obese male career firefighters (mean ± standard deviation; age = 37...
April 27, 2018: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29698745/evolution-regulation-and-function-of-porcine-selenogenome
#14
REVIEW
Xiao-Dong Chen, Ze-Ping Zhao, Ji-Chang Zhou, Xin Gen Lei
Much less research on regulation and function of selenoproteins has been conducted in domestic pigs than in rodents or humans, although pigs are an excellent model of human nutrition and medicine and pork is a widely consumed meat in the world. Phylogenetically, the 25 identified porcine selenoproteins fell into two primitive groups, and might be further divided into three parallel branches. Despite a high similarity to that of humans and rodents, the porcine selenoproteome exhibited the closest evolutionary relationship with that of sheep and cattle among eight domestic species...
April 23, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29698111/arachidonic-acid-supplementation-transiently-augments-the-acute-inflammatory-response-to-resistance-exercise-in-trained-men
#15
James F Markworth, Randall F D'Souza, Kirsten M M Aasen, Sarah M Mitchell, Brenan R Durainayagam, Andrew J Sinclair, Jonathan M Peake, Ingrid Marie Egner, Truls Raastad, David Cameron-Smith, Cameron J Mitchell
Strenuous exercise can result in skeletal muscle damage, leading to the systemic mobilization, activation and intramuscular accumulation of blood leukocytes. Eicosanoid metabolites of arachidonic acid (ARA) are potent inflammatory mediators, but whether changes in dietary ARA intake influence exercise-induced inflammation is not known. This study investigated the effect of 4 weeks of dietary supplementation with 1.5 g/day ARA (n=9, 24 {plus minus} 1.5 years) or corn-soy oil placebo (n=10, 26 {plus minus} 1...
April 26, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29687691/side-effects-of-anabolic-steroids-used-by-athletes-at-unaizah-gyms-saudi-arabia-a-pilot-study
#16
Amer A Almaiman, Sulaiman H Almaiman, Elsayed I Elagamy, Osama Al Wutayd, Mohammed Almarzuqi, Rayyan Alzunaidi, Sami Alhatlani, Eltayeb E Eid
BACKGROUND: A large number of Saudi athletes are recently shown to use androgenic anabolic steroid (AAS) products to achieve rapid muscle growth without realizing the serious health risks of these drugs. Aim of this study was to elucidate the side effects encountered with prolonged use of AAS products by Saudi athletes. METHODS: A cross-sectional study was conducted, in which 16 regular gym members, 12 of them used AAS, were asked to answer a questionnaire and provide blood samples following current AAS course completion...
April 20, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29687650/effect-of-protein-supplementation-during-diet-induced-weight-loss-on-muscle-mass-and-strength-a-randomized-controlled-study
#17
Gordon I Smith, Paul K Commean, Dominic N Reeds, Samuel Klein, Bettina Mittendorfer
OBJECTIVE: High protein (particularly leucine-rich whey protein) intake is recommended to mitigate the adverse effect of weight loss on muscle mass. The effectiveness of this approach is unknown. METHODS: Seventy middle-aged (50-65 years old) postmenopausal women with obesity were randomized to (1) weight maintenance (WM), (2) weight loss and the recommended daily allowance for protein (0.8 g/kg/d) (WL group), or (3) weight loss plus whey protein supplementation (total protein: 1...
May 2018: Obesity
https://www.readbyqxmd.com/read/29684966/-nutritional-assessment-and-management-for-patients-with-chronic-liver-disease
#18
REVIEW
Tae Hee Lee
When liver disease is severe, the prognosis can be worse if the patient is malnourished. Adequate nutritional support for patients with liver diseases can improve the patient's condition and prognosis. In the case of liver cirrhosis, malnutrition can occur due to a variety of causes, including poor oral intake, maldigestion, malabsorption, associated renal disease, and metabolic abnormalities. For a nutritional assessment, it is important to check the dietary intake, change in body composition, including anthropometry, and a functional assessment of muscle...
April 25, 2018: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29679905/qing-brick-tea-qbt-aqueous-extract-protects-monosodium-glutamate-induced-obese-mice-against-metabolic-syndrome-and-involves-up-regulation-transcription-factor-nuclear-factor-erythroid-2-related-factor-2-nrf2-antioxidant-pathway
#19
Wenqi Gao, Changyi Xiao, Jun Hu, Biaoxin Chen, Chunyan Wang, Bangping Cui, Pengyi Deng, Jian Yang, Zhifang Deng
BACKGROUND: Qing brick tea (QBT), traditional and popular beverage for Chinese people, is an important post-fermentation dark tea. Our present study was performed to investigate the ameliorative effects of QBT aqueous extract on metabolic syndrome (Mets) in monosodium glutamate-induced obese mice and the potential mechanisms. METHOD: Monosodium glutamate-induced obese mice were used to evaluate the anti-Mets effects of QBT. Content levels of malonaldehyde (MDA), reactive oxygen species (ROS) and protein carbonylation, antioxidant enzyme activities of superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT), glutathione reductase (GR) in the skeletal muscle were assessed by commercial kits, respectively...
April 18, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29675640/effects-of-combined-whole-body-electromyostimulation-and-protein-supplementation-on-local-and-overall-muscle-fat-distribution-in-older-men-with-sarcopenic-obesity-the-randomized-controlled-franconia-sarcopenic-obesity-franso-study
#20
Wolfgang Kemmler, Alexandra Grimm, Michael Bebenek, Matthias Kohl, Simon von Stengel
The primary aim of the project was to determine the combined effect of whole-body electromyostimulation (WB-EMS) and protein supplements on local and overall muscle/fat distribution in older man with sarcopenic obesity (SO). Community-dwelling (cdw) men ≥ 70 years with SO were randomly allocated to a WB-EMS and protein supplementation (n = 33) or a non-intervention control group (CG: n = 34). WB-EMS was conducted 1.5 sessions of 20 min/week for 16 weeks. Whey protein supplementation aimed to ensure a daily intake of 1...
April 19, 2018: Calcified Tissue International
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