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Protein and resistance exercise

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https://www.readbyqxmd.com/read/28078614/resistance-exercise-reduces-seizure-occurrence-attenuates-memory-deficits-and-restores-bdnf-signaling-in-rats-with-chronic-epilepsy
#1
Alexandre Aparecido de Almeida, Sérgio Gomes da Silva, Glauber Menezes Lopim, Diego Vannucci Campos, Jansen Fernandes, Francisco Romero Cabral, Ricardo Mario Arida
Epilepsy is a disease characterized by recurrent, unprovoked seizures. Cognitive impairment is an important comorbidity of chronic epilepsy. Human and animal model studies of epilepsy have shown that aerobic exercise induces beneficial structural and functional changes and reduces the number of seizures. However, little is yet understood about the effects of resistance exercise on epilepsy. We evaluated the effects of a resistance exercise program on the number of seizures, long-term memory and expression/activation of signaling proteins in rats with epilepsy...
January 11, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28070459/pre-versus-post-exercise-protein-intake-has-similar-effects-on-muscular-adaptations
#2
Brad Jon Schoenfeld, Alan Aragon, Colin Wilborn, Stacie L Urbina, Sara E Hayward, James Krieger
The purpose of this study was to test the anabolic window theory by investigating muscle strength, hypertrophy, and body composition changes in response to an equal dose of protein consumed either immediately pre- versus post-resistance training (RT) in trained men. Subjects were 21 resistance-trained men (>1 year RT experience) recruited from a university population. After baseline testing, participants were randomly assigned to 1 of 2 experimental groups: a group that consumed a supplement containing 25 g protein and 1 g carbohydrate immediately prior to exercise (PRE-SUPP) (n = 9) or a group that consumed the same supplement immediately post-exercise (POST-SUPP) (n = 12)...
2017: PeerJ
https://www.readbyqxmd.com/read/28066938/effect-of-gender-and-exercise-on-haematological-and-biochemical-parameters-in-holsteiner-horses
#3
A Andriichuk, H Tkachenko
The objective of this study was to assess the influence of exercise of average intensity in the haematological and biochemical values, as well as acidic resistance of erythrocytes in mares and stallions of Holsteiner breed. A total of seventeen horses of Holstein breed (seven mares and 10 stallions aged 6 years) were used in this study. The blood samples were assessed for haematocrit (HCT) value, haemoglobin concentration (HGB), the amount of red blood cells (RBC), white blood cells (WBC), platelets (PLT), leucogram, mean corpuscular haemoglobin concentration (MCHC), mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), red cell distribution width (RDW) and platelet distribution width (PDW)...
January 8, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28064225/influence-of-mechanical-force-on-bone-matrix-proteins-in-ovariectomised-mice-and-osteoblast-like-mc3t3-e1-cells
#4
Meng Zhang, Shintaro Ishikawa, Tomoko Inagawa, Hideshi Ikemoto, Shiyu Guo, Masataka Sunagawa, Tadashi Hisamitsu
AIM: To investigate the effect of mechanical stress on periostin and semaphorin-3A expression in a murine model of postmenopausal osteoporosis and in osteoblast-like MC3T3-E1 cells. MATERIALS AND METHODS: Female mice were divided into three groups and treated with a sham operation, ovariectomy (OVX) or OVX plus treadmill training (OVX+Run). After 10 weeks, tibias were used for histological analysis. MC3T3-E1 cells were burdened by mechanical stress using a centrifuge or were treated with periostin, and the production of biologically-active semaphorin-3A was examined in vitro...
2, 2017: In Vivo
https://www.readbyqxmd.com/read/28039193/short-term-intense-exercise-training-reduces-stress-markers-and-alters-the-transcriptional-response-to-exercise-in-skeletal-muscle
#5
James Matthew Hinkley, Adam R Konopka, Miranda K Suer, Matthew P Harber
The purpose of this investigation was to examine the influence of short-term intense endurance training on cycling performance, along with the acute and chronic signaling responses of skeletal muscle stress and stability markers. Ten recreationally active subjects (25 ± 2 yr, 79 ± 3 kg, 47 ± 2 ml·kg·min-1) were studied before and after a 12-day cycling protocol to examine the effects of short-term intense (70-100% VO2max) exercise training on resting and exercise-induced regulation of molecular factors related to skeletal muscle cellular stress and protein stability...
December 30, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28003538/whey-protein-supplementation-and-higher-total-protein-intake-do-not-influence-bone-quantity-in-overweight-and-obese-adults-following-a-36-wk-exercise-and-diet-intervention
#6
Christian S Wright, Aoibheann M McMorrow, Eileen M Weinheimer-Haus, Wayne W Campbell
BACKGROUND: Controversy exists concerning the effects of higher total protein intake (TPro) on bone health, which may be associated with reduced bone mineral density (BMD). However, whey protein (WP) may induce bone formation because of its basic component, milk basic protein. OBJECTIVE: This study assessed the effects of WP supplementation, TPro, and change in TPro (postsupplementation - presupplementation) on BMD and bone mineral content (BMC; total body, lumbar spine, total femur, and femoral neck) in overweight and class I obese middle-aged adults following an exercise intervention...
December 21, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/28002874/high-serum-alanine-aminotransferase-is-associated-with-the-risk-of-colorectal-adenoma-in-korean-men
#7
Chang Mo Moon, Kyung Eun Yun, Seungho Ryu, Yoosoo Chang, Dong Il Park
BACKGROUND AND AIM: An elevated alanine aminotransferase (ALT) is frequently observed in subjects with metabolic syndrome, which is associated with the risk of colorectal adenoma (CRA). However, the relationship between ALT and CRA remains unclear. Therefore, we aimed to investigate whether high serum ALT is associated with the risk of CRA in a metabolically healthy population. METHODS: We conducted this cross-sectional study in 27,717 asymptomatic Korean adults who underwent a health checkup...
December 21, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28002685/effects-of-blood-flow-restriction-on-biomarkers-of-myogenesis-in-response-to-resistance-exercise
#8
Andrew S Layne, Kelly Larkin-Kaiser, R Gavin MacNeil, Marvin Dirain, Bhanuprasad Sandesara, Todd M Manini, Thomas W Buford
We investigated the acute myogenic response to resistance exercise with and without blood-flow restriction (BFR). Six men and women (age, 22 ± 1 years) performed unilateral knee extensions at 40% of 1-repetition maximum with or without (CNTRL) BFR applied via pressure cuff inflated to 220 mm Hg. Muscle biopsies were collected at 4 h and 24 h postexercise. Addition of BFR increased myoD and c-Met messenger RNA expression relative to CNTRL. Expression of hepatocyte growth factor protein was significantly higher following CNTRL...
January 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27999852/effect-of-a-high-protein-energy-restricted-diet-combined-with-resistance-training-on-metabolic-profile-in-older-individuals-with-metabolic-impairments
#9
T Amamou, E Normandin, J Pouliot, I J Dionne, M Brochu, E Riesco
Adequate protein intake and resistance training are effective strategies to maintain muscle mass, but the effect of their combination on metabolic profile during weight loss remains to be determined in older adults. The main objective of this study was to determine the effect of a 16-week high-protein caloric restriction combined with resistance training on chronic disease risk factors in obese older individuals with metabolic impairments. A total of 26 overweight adults aged between 60 and 75 years (BMI 32...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27993842/exercise-induced-biochemical-changes-and-their-potential-influence-on-cancer-a-scientific-review
#10
Robert James Thomas, Stacey A Kenfield, Alfonso Jimenez
AIM: To review and discuss the available international literature regarding the indirect and direct biochemical mechanisms that occur after exercise, which could positively, or negatively, influence oncogenic pathways. METHODS: The PubMed, MEDLINE, Embase and Cochrane libraries were searched for papers up to July 2016 addressing biochemical changes after exercise with a particular reference to cancer. The three authors independently assessed their appropriateness for inclusion in this review based on their scientific quality and relevance...
December 19, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27993175/carbohydrate-intake-and-resistance-based-exercise-are-current-recommendations-reflective-of-actual-need
#11
Kurt A Escobar, Trisha A VanDusseldorp, Chad M Kerksick
Substantial research has been completed examining the impact of carbohydrate (CHO) intake on endurance exercise, whereas its role in resistance-based exercise performance, adaptation and cell signalling has yet to be fully characterised. This empirical shortcoming has precluded the ability to establish specific CHO recommendations for resistance exercise. This results in recommendations largely stemming from findings based on endurance exercise and/or anecdotal evidence despite the distinct energetic demands and molecular responses mediating adaptation from endurance- and resistance-based exercise...
December 20, 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27983587/role-of-redox-signaling-and-inflammation-in-skeletal-muscle-adaptations-to-training
#12
REVIEW
Maria Carmen Gomez-Cabrera, Jose Viña, Li Li Ji
The inflammatory response to exercise-induced muscle damage has been extensively described. Exercise has important modulatory effects on immune function. These effects are mediated by diverse factors including pro-inflammatory cytokines, classical stress hormones, and hemodynamic effects leading to cell redistribution. As has been reported regarding oxidative stress, inflammation can have both detrimental and beneficial effects in skeletal muscle. In this review we will address the role of inflammation on protein metabolism in skeletal muscle...
December 13, 2016: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/27982685/responses-of-skeletal-muscle-hypertrophy-in-wistar-rats-to-different-resistance-exercise-models
#13
T F Luciano, S de Oliveira Marques, B L da Silva Pieri, D Roxo de Souza, L V Araújo, R T Nesi, D da Luz Scheffer, V H Comin, R A Pinho, A P Muller, C T de Souza
This study aimed to compare the effects of three different resistance exercise models on the quadriceps muscle cross-sectional area, as well as on mTOR phosphorylation and other pivotal molecules involved in the upstream regulation of mTOR. Twenty-four male Wistar rats were divided into untrained (control), endurance resistance training, strength resistance training, and hypertrophy resistance training (HRT) groups (n = 6). After 12 weeks of training, the red portion of the quadriceps was removed for histological and western blot analyses...
December 16, 2016: Physiological Research
https://www.readbyqxmd.com/read/27981357/overexpression-of-protein-kinase-stk25-in-mice-exacerbates-ectopic-lipid-accumulation-mitochondrial-dysfunction-and-insulin-resistance-in-skeletal-muscle
#14
Urszula Chursa, Esther Nuñez-Durán, Emmelie Cansby, Manoj Amrutkar, Silva Sütt, Marcus Ståhlman, Britt-Marie Olsson, Jan Borén, Maria E Johansson, Fredrik Bäckhed, Bengt R Johansson, Carina Sihlbom, Margit Mahlapuu
AIMS/HYPOTHESIS: Understanding the molecular networks controlling ectopic lipid deposition and insulin responsiveness in skeletal muscle is essential for developing new strategies to treat type 2 diabetes. We recently identified serine/threonine protein kinase 25 (STK25) as a critical regulator of liver steatosis, hepatic lipid metabolism and whole body glucose and insulin homeostasis. Here, we assessed the role of STK25 in control of ectopic fat storage and insulin responsiveness in skeletal muscle...
December 16, 2016: Diabetologia
https://www.readbyqxmd.com/read/27955950/resistive-training-and-molecular-regulators-of-vascular-metabolic-risk-in-chronic-stroke
#15
Alice S Ryan, Guoyan Li, Charlene Hafer-Macko, Frederick M Ivey
BACKGROUND: Peroxisome proliferator-activated receptor (PPAR)-γ coactivator (PGC-1α) gene and Sirtuin-1 (SIRT-1) respond to physiological stimuli and regulate insulin resistance. Inflammatory markers tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), C-reactive protein (CRP), and the soluble forms of intracellular adhesion molecule (sICAM-1) and vascular CAM-1 (sVCAM-1) are associated with increased risk of diabetes and coronary heart disease. Resistive training (RT) reduces hyperinsulinemia and improves insulin action in chronic stroke...
December 9, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27951413/immunometabolic-parameters-in-overweight-dogs-during-weight-loss-with-or-without-an-exercise-program
#16
A D Vitger, B M Stallknecht, J E Miles, S L Hansen, A Vegge, C R Bjørnvad
The influence of physical activity on metabolic health in overweight dogs is unknown. This study was conducted to evaluate biomarkers of immunometabolic health in relation to changes in physical activity and adiposity. Client-owned overweight dogs participated in a 12-wk intervention based on caloric restriction combined with a training program (fitness and diet [FD] group, n = 8), or caloric restriction alone (diet-only [DO] group, n = 8). Physical activity was monitored by accelerometry. All dogs were fed the same diet and achieved similar weight loss...
November 11, 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/27941030/molecular-mechanisms-of-ros-production-and-oxidative-stress-in-diabetes
#17
REVIEW
Philip Newsholme, Vinicius Fernandes Cruzat, Kevin Noel Keane, Rodrigo Carlessi, Paulo Ivo Homem de Bittencourt
Oxidative stress and chronic inflammation are known to be associated with the development of metabolic diseases, including diabetes. Oxidative stress, an imbalance between oxidative and antioxidative systems of cells and tissues, is a result of over production of oxidative-free radicals and associated reactive oxygen species (ROS). One outcome of excessive levels of ROS is the modification of the structure and function of cellular proteins and lipids, leading to cellular dysfunction including impaired energy metabolism, altered cell signalling and cell cycle control, impaired cell transport mechanisms and overall dysfunctional biological activity, immune activation and inflammation...
December 15, 2016: Biochemical Journal
https://www.readbyqxmd.com/read/27935521/leucine-supplementation-enhances-integrative-myofibrillar-protein-synthesis-in-free-living-older-men-consuming-lower-and-higher-protein-diets-a-parallel-group-crossover-study
#18
Caoileann H Murphy, Nelson I Saddler, Michaela C Devries, Chris McGlory, Steven K Baker, Stuart M Phillips
BACKGROUND: Leucine co-ingestion with lower-protein (LP)-containing meals may overcome the blunted muscle protein synthetic response to food intake in the elderly but may be effective only in individuals who consume LP diets. OBJECTIVE: We examined the impact of leucine co-ingestion with mixed macronutrient meals on integrated 3-d rates of myofibrillar protein synthesis (MyoPS) in free-living older men who consumed higher protein (HP) (1.2 g · kg(-1) · d(-1)) or LP (0...
December 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27928217/effects-of-a-high-protein-and-omega-3-enriched-diet-with-or-without-creatine-supplementation-on-markers-of-soreness-and-inflammation-during-5-consecutive-days-of-high-volume-resistance-exercise-in-females
#19
Sara Hayward, Colin D Wilborn, Lem W Taylor, Stacie L Urbina, Jordan J Outlaw, Cliffa A Foster, Michael D Roberts
We examined if two different dietary interventions affected markers of soreness and inflammation over a 5-day high-volume resistance training protocol in females that resistance-trained 8 weeks prior. Twenty-eight females (age: 20 ± 1 yr; body mass: 63.5 ± 1.6 kg, height: 1.67 ± 0.01 m) completed 4 weeks of pre-training (weeks 1-4) followed by a subsequent 4-week training period along with a dietary intervention (weeks 5-8). Dietary interventions from weeks 5-8 included: a) no intervention (CTL, n = 10) b) a higher-protein diet supplemented with hydrolyzed whey protein (50 g/d) and omega-3 fatty acids (900 mg/d) (DI, n = 8), and c) the DI condition as well as creatine monohydrate (5 g/d) (DI+C, n = 10)...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27923980/humanin-skeletal-muscle-protein-levels-increase-after-resistance-training-in-men-with-impaired-glucose-metabolism
#20
Eva-Karin Gidlund, Ferdinand von Walden, Mika Venojärvi, Ulf Risérus, Olli J Heinonen, Jessica Norrbom, Carl Johan Sundberg
Humanin (HN) is a mitochondrially encoded and secreted peptide linked to glucose metabolism and tissue protecting mechanisms. Whether skeletal muscle HN gene or protein expression is influenced by exercise remains unknown. In this intervention study we show, for the first time, that HN protein levels increase in human skeletal muscle following 12 weeks of resistance training in persons with prediabetes. Male subjects (n = 55) with impaired glucose regulation (IGR) were recruited and randomly assigned to resistance training, Nordic walking or a control group...
December 2016: Physiological Reports
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