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https://www.readbyqxmd.com/read/29053943/inflammation-status-of-healthy-young-men-initial-and-specific-responses-to-resistance-training
#1
Johanna K Ihalainen, Heikki Peltonen, Göran Paulsen, Juha P Ahtiainen, Ritva S Taipale, Mari Hämäläinen, Eeva Moilanen, Antti A Mero
PURPOSE: Our primary aim was to study the effects of a 4 wk preparatory resistance training (RT) period followed by 12 wks of two specific RT protocols (either hypertrophic-strength, HS, or strength-hypertrophy-power, SHP, training) on inflammation markers and the possible relationship of the changes in abdominal fat and lean mass to the changes in inflammation status. METHODS: A total of 82 healthy men were included in the study. Maximal concentric leg press strength (1RM), total body lean mass, total body and abdominal fat mass, circulating high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), interleukin-1 receptor antagonist (IL-1ra), monocyte chemoattractant protein 1 (MCP-1), and selected adipocytokines (resistin, adiponectin and leptin) concentrations were measured before (PRE) and after 4 (wk4) and 16 weeks (wk16) of RT...
October 20, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29049000/oral-nutrition-as-a-form-of-pre-operative-enhancement-in-patients-undergoing-surgery-for-colorectal-cancer-a-systematic-review
#2
Emma R J Bruns, Tanja E Argillander, Baukje Van Den Heuvel, Christianne J Buskens, Peter Van Duijvendijk, Renate M Winkels, Annette Kalf, Edwin S Van Der Zaag, Eelco B Wassenaar, Willem A Bemelman, Barbara C Van Munster
BACKGROUND: Nutritional status has major impacts on the outcome of surgery, in particular in patients with cancer. The aim of this review was to assess the merit of oral pre-operative nutritional support as a part of prehabilitation in patients undergoing surgery for colorectal cancer. METHODS: A systematic literature search and meta-analysis was performed according to the Preferred Reporting of Systematic Reviews and Meta-Analyses (PRISMA) recommendations in order to review all trials investigating the effect of oral pre-operative nutritional support in patients undergoing colorectal surgery...
October 19, 2017: Surgical Infections
https://www.readbyqxmd.com/read/29046921/pioglitazone-reduces-cold-induced-brown-fat-glucose-uptake-despite-induction-of-browning-in-cultured-human-adipocytes-a-randomised-controlled-trial-in-humans
#3
Rebecca K C Loh, Melissa F Formosa, Nina Eikelis, David A Bertovic, Mitchell J Anderson, Shane A Barwood, Shane Nanayakkara, Neale D Cohen, Andre La Gerche, Anne T Reutens, Kenneth S Yap, Thomas W Barber, Gavin W Lambert, Martin H Cherk, Stephen J Duffy, Bronwyn A Kingwell, Andrew L Carey
AIMS/HYPOTHESIS: Increasing brown adipose tissue (BAT) activity is a possible therapeutic strategy to increase energy expenditure and glucose and lipid clearance to ameliorate obesity and associated comorbidities. The thiazolidinedione (TZD) class of glucose-lowering drugs increase BAT browning in preclinical experimental models but whether these actions extend to humans in vivo is unknown. The aim of this study was to determine the effect of pioglitazone treatment on adipocyte browning and adaptive thermogenesis in humans...
October 18, 2017: Diabetologia
https://www.readbyqxmd.com/read/29045325/effects-of-two-years-of-calorie-restriction-on-aerobic-capacity-and-muscle-strength
#4
Susan B Racette, James Rochon, Mary L Uhrich, Dennis T Villareal, Sai Krupa DAS, Luigi Fontana, Manjushri Bhapkar, Corby K Martin, Leanne M Redman, Paul J Fuss, Susan B Roberts, William E Kraus
PURPOSE: Calorie restriction (CR) improves health span and delays age-related diseases in many species. The multicenter Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE) study was the first randomized controlled trial of CR in nonobese humans. The aim of this investigation was to determine the effects of CR on V˙O2max and muscle strength in the CALERIE trial. METHODS: Healthy, normal-weight, and mildly overweight women and men (n = 218, mean ± SE age = 37...
November 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29044801/differential-physiological-responses-to-central-leptin-overexpression-in-male-and-female-rats
#5
Isabelle Côté, Sara M Green, Hale Z Toklu, Drake Morgan, Christy S Carter, Nihal Tümer, Philip J Scarpace
Brains of females are more sensitive to the acute catabolic actions of leptin. However, sex differences in the long-term physiological responses to central leptin receptor modulation are unknown. To this end, we centrally delivered a viral vector to overexpress leptin (Leptin), a neutral leptin receptor antagonist (Leptin-Antagonist), or a green fluorescence protein (Control). We examined chronic changes in body weight and composition in male and female rats. Females displayed greater and sustained responses to Leptin whereas males rapidly lost physiological effects and developed leptin resistance confirmed by lower acute leptin-mediated phosphorylation of STAT3 (P-STAT3)...
October 17, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29042425/cardiovascular-and-metabolic-consequences-of-testosterone-supplements-in-young-and-old-male-spontaneously-hypertensive-rats-implications-for-testosterone-supplements-in-men
#6
Carolina Dalmasso, Chetan N Patil, Licy L Yanes Cardozo, Damian G Romero, Rodrigo O Maranon
BACKGROUND: The safety of testosterone supplements in men remains unclear. In the present study, we tested the hypothesis that in young and old male spontaneously hypertensive rats (SHR), long-term testosterone supplements increase blood pressure and that the mechanism is mediated in part by activation of the renin-angiotensin system. METHODS AND RESULTS: In untreated males, serum testosterone exhibited a sustained decrease after 5 months of age, reaching a nadir by 18 to 22 months of age...
October 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29040389/the-anti-epileptic-ketogenic-diet-alters-hippocampal-transporter-levels-and-reduces-adiposity-in-aged-rats
#7
Abbi R Hernandez, Caesar M Hernandez, Keila T Campos, Leah M Truckenbrod, Yasemin Sakarya, Joseph A McQuail Ph D, Christy S Carter, Jennifer L Bizon, Andrew P Maurer, Sara N Burke
Nutritional ketosis is induced by high fat/low carbohydrate dietary regimens, which produce high levels of circulating ketone bodies, shifting metabolism away from glucose utilization. While ketogenic diets (KD) were initially introduced to suppress seizures, they are garnering attention for their potential to treat a myriad of neurodegenerative and metabolic disorders that are associated with advanced age. The feasibility and physiological impact of implementing a long-term KD in old animals, however, has not been systematically examined...
October 12, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29040301/surveying-predictors-of-late-life-longitudinal-change-in-daily-activity-energy-expenditure
#8
Vincenzo Valiani, Sandrine Sourdet, Dale A Schoeller, Dawn C Mackey, Douglas C Bauer, Nancy W Glynn, Yosuke Yamada, Tamara B Harris, Todd M Manini
BACKGROUND: Total daily energy expenditure (TEE) is composed of resting metabolic rate (RMR), post-prandial thermogenesis and activity energy expenditure (AEE). Higher AEE is strongly associated with lower mortality and physical limitations among older adults, but factors that predict changes in AEE in septu and octogenarians are not clearly understood. OBJECTIVE: To identify factors associated with late-life longitudinal change in AEE. DESIGN: Energy expenditure was re-assessed in 83 participants (average age at baseline, 74...
2017: PloS One
https://www.readbyqxmd.com/read/29040226/propranolol-and-oxandrolone-therapy-accelerated-muscle-recovery-in-burned-children
#9
Tony Chao, Craig Porter, David N Herndon, Aikaterina Siopi, Henry Ideker, Ronald P Mlcak, Labros S Sidossis, Oscar E Suman
INTRODUCTION: Severe burns result in prolonged hypermetabolism and skeletal muscle catabolism. Rehabilitative exercise training (RET) programs improved muscle mass and strength in severely burned children. The combination of RET with β-blockade or testosterone analogues showed improved exercise-induced benefits on body composition and muscle function. However, the effect of RET combined with multiple drug therapy on muscle mass, strength, cardiorespiratory fitness and protein turnover are unknown...
October 16, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29038669/body-composition-is-altered-in-pre-diabetic-patients-with-impaired-fasting-glucose-tolerance-results-from-the-nhanes-survey
#10
Valerie Julian, Romain Blondel, Bruno Pereira, David Thivel, Yves Boirie, Martine Duclos
BACKGROUND: Previous studies suggest that type 2 diabetes mellitus (T2DM) is associated with a loss of muscle mass but the impact of fasting blood glucose (FBG) on body composition remains underappreciated in pre-diabetic subjects. The aim of this study was to determine the influence of FBG on lean mass (LM), fat mass (FM) and their distribution (trunk vs. appendicular), separately in middle-aged men and women. METHODS: One thousand nine hundred and eleven (1,911) men (63...
November 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29037389/lower-critical-temperature-and-cold-induced-thermogenesis-of-lean-and-overweight-humans-are-inversely-related-to-body-mass-and-basal-metabolic-rate
#11
Kimberly J Nahon, Mariëtte R Boon, Fleur Doornink, Ingrid M Jazet, Patrick C N Rensen, Gustavo Abreu-Vieira
It is colloquially stated that body size plays a role in the human response to cold, but the magnitude and details of this interaction are unclear. To explore the inherent influence of body size on cold-exposed metabolism, we investigated the relation between body composition and resting metabolic rate in humans at thermoneutrality and during cooling within the nonshivering thermogenesis range. Body composition and resting energy expenditure were measured in 20 lean and 20 overweight men at thermoneutrality and during individualized cold exposure...
October 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29036016/exercise-preserves-physical-function-in-prostate-cancer-patients-with-bone-metastases
#12
Daniel A Galvão, Dennis R Taaffe, Nigel Spry, Prue Cormie, David Joseph, Suzanne K Chambers, Raphael Chee, Carolyn Peddle-McIntyre, Nicolas H Hart, Freerk T Baumann, James Denham, Michael Baker, Robert U Newton
PURPOSE: The presence of bone metastases has excluded participation of cancer patients in exercise interventions and is a relative contraindication to supervised exercise in the community setting due to concerns of fragility fracture. We examined the efficacy and safety of a modular multi-modal exercise program in prostate cancer patients with bone metastases. METHODS: Between 2012 and 2015, 57 prostate cancer patients (70.0±8.4 years; BMI 28.7±4.0 kg/m) with bone metastases (pelvis 75...
October 14, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29035601/skinfold-prediction-equations-fail-to-provide-an-accurate-estimate-of-body-composition-in-elite-rugby-union-athletes-of-caucasian-and-polynesian-ethnicity
#13
Adam Zemski, Elizabeth Broad, Gary Slater
Body composition in elite rugby union athletes is routinely assessed using surface anthropometry, which can be utilised to provide estimates of absolute body composition using regression equations. This study aims to assess the ability of available skinfold equations to estimate body composition in elite rugby union athletes, who have unique physique traits and divergent ethnicity. The development of sport-specific and ethnicity-sensitive equations was also pursued. Forty-three male international Australian rugby union athletes of Caucasian and Polynesian descent underwent surface anthropometry and dual-energy X-ray absorptiometry (DEXA) assessment...
October 16, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29035404/-biological-significance-of-chromium-iii-for-the-human-organism
#14
REVIEW
Anna Piotrowska, Wanda Pilch, Łukasz Tota, Gabriel Nowak
Currently, chromium is probably the most controversial transition metal. In recent publications it is clearly stated that it is not an essential micronutrient and should be considered to have a pharmacological effect. Conflicting scientific reports along with a huge amount of dietary supplements, as well as dietary and sports nutrients available on the market have prompted the authors to investigate the available information on the range of possible application, efficacy and safety of products containing salts or chelates of chromium III...
October 12, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/29033242/weight-trajectories-from-birth-and-bone-mineralization-at-7-years-of-age
#15
Teresa Monjardino, Teresa Rodrigues, Hazel Inskip, Nicholas Harvey, Cyrus Cooper, Ana Cristina Santos, Raquel Lucas
OBJECTIVE: To assess whether different trajectories of weight gain since birth influence bone mineral content (BMC) and areal bone mineral density (aBMD) at 7 years of age. STUDY DESIGN: We studied a subsample of 1889 children from the Generation XXI birth cohort who underwent whole-body dual-energy radiograph absorptiometry. Weight trajectories identified through normal mixture modeling for model-based clustering and labeled "normal weight gain," "weight gain during infancy," "weight gain during childhood," and "persistent weight gain" were used...
October 12, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29032157/effects-of-fat-and-exoskeletal-mass-on-the-mass-scaling-of-metabolism-in-carabidae-beetles
#16
Bartosz W Schramm, Agnieszka Gudowska, Andrzej Antoł, Anna Maria Labecka, Ulf Bauchinger, Jan Kozłowski, Marcin Czarnoleski
The rate at which organisms metabolize resources and consume oxygen is tightly linked to body mass. Typically, there is a sub-linear allometric relationship between metabolic rates and body mass (mass-scaling exponent b<1). The origin of this pattern remains one of the most intriguing and hotly debated topics in evolutionary physiology. A decrease in mass-specific metabolic rates in larger organisms might reflect disproportionate increases in body components with low metabolic activity, such as storage and skeletal tissues...
October 12, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/29031721/cdkal1-a-type-2-diabetes-susceptibility-gene-regulates-mitochondrial-function-in-adipose-tissue
#17
Colin J Palmer, Raphael J Bruckner, Joao A Paulo, Lawrence Kazak, Jonathan Z Long, Amir I Mina, Zhaoming Deng, Katherine B LeClair, Jessica A Hall, Shangyu Hong, Peter-James H Zushin, Kyle L Smith, Steven P Gygi, Susan Hagen, David E Cohen, Alexander S Banks
OBJECTIVES: Understanding how loci identified by genome wide association studies (GWAS) contribute to pathogenesis requires new mechanistic insights. Variants within CDKAL1 are strongly linked to an increased risk of developing type 2 diabetes and obesity. Investigations in mouse models have focused on the function of Cdkal1 as a tRNA(Lys) modifier and downstream effects of Cdkal1 loss on pro-insulin translational fidelity in pancreatic β-cells. However, Cdkal1 is broadly expressed in other metabolically relevant tissues, including adipose tissue...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29031552/agrp-knockdown-blocks-long-term-appetitive-but-not-consummatory-feeding-behaviors-in-siberian-hamsters
#18
REVIEW
M Alex Thomas, Vy Tran, Vitaly Ryu, Bingzhong Xue, Timothy J Bartness
Arcuate hypothalamus-derived agouti-related protein (AgRP) and neuropeptide Y (NPY) are critical for maintaining energy homeostasis. Fasting markedly upregulates AgRP/NPY expression and circulating ghrelin, and exogenous ghrelin treatment robustly increases acute food foraging and food intake, and chronic food hoarding behaviors in Siberian hamsters. We previously demonstrated that 3rd ventricular AgRP injection robustly stimulates acute and chronic food hoarding, largely independent of food foraging and intake...
October 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29030644/how-to-prevent-the-detrimental-effects-of-two-months-of-bed-rest-on-muscle-bone-and-cardiovascular-system-an-rct
#19
Andreas Kramer, Albert Gollhofer, Gabriele Armbrecht, Dieter Felsenberg, Markus Gruber
Physical inactivity leads to a deconditioning of the skeletal, neuromuscular and cardiovascular system. It can lead to impaired quality of life, loss of autonomy, falls and fractures. Regular exercise would be a logical remedy, but the generally recommended high-volume endurance and strength training programs require a lot of time and equipment. In this randomized controlled study with 23 healthy participants, we established that a short, intensive jump training program can prevent the large musculoskeletal and cardiovascular deconditioning effects caused by two months of physical inactivity during bed rest, particularly the loss of bone mineral mass and density, lean muscle mass, maximal leg strength and peak oxygen uptake...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29030560/risk-of-sarcopenia-and-osteoporosis-in-male-tuberculosis-survivors-korea-national-health-and-nutrition-examination-survey
#20
Chang-Jin Choi, Whan-Seok Choi, Churl-Min Kim, Sook-Young Lee, Kyung-Soo Kim
Short-term prospective studies have suggested that pulmonary tuberculosis (TB) preludes permanent loss of lean tissue and fat mass even when TB treatment is effective. The aim of this study was to estimate the risk of sarcopenia and osteoporosis among Korean male TB survivors. Data of the population-based, Korea National Health and Nutrition Examination Survey (KNHANES) (2008-2011) were analyzed, including 3,228 males aged 50 years or older who underwent chest X-ray (CXR) and dual-energy x-ray absorptiometry (DEXA)...
October 13, 2017: Scientific Reports
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