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Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme

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https://www.readbyqxmd.com/read/28514599/a-bioenergetics-systems-evaluation-of-ketogenic-diet-liver-effects
#1
Lewis J Hutfles, Heather M Wilkins, Scott J Koppel, Ian W Weidling, J Eva Selfridge, Eephie Tan, John P Thyfault, Chad Slawson, Aron W Fenton, Hao Zhu, Russell H Swerdlow
Ketogenic diets induce hepatocyte fatty acid oxidation and ketone body production. To further evaluate how ketogenic diets affect hepatocyte bioenergetic infrastructure, we analyzed livers from C57Bl/6J male mice maintained for one month on a ketogenic or standard chow diet. Compared to the standard diet, the ketogenic diet increased cytosolic and mitochondrial protein acetylation and also altered protein succinylation patterns. SIRT3 protein decreased while SIRT5 protein increased, and gluconeogenesis, oxidative phosphorylation, and mitochondrial biogenesis pathway proteins were variably and likely strategically altered...
May 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28514598/the-communal-relation-of-mthfr-mtr-ace-gene-polymorphisms-and-hyperhomocysteinemia-as-conceivable-risk-of-coronary-artery-disease
#2
Rizwan Masud, Haider Zaigham Baqai
Homocysteine and its modulating genes have strongly emerged as novel biomarkers for coronary artery disease (CAD). In present study, we investigated whether polymorphisms in homocysteine pathway genes and the plasma levels of homocysteine, folate and vitamin B12, independently or in combination, are associated with CAD risk. A total of 504 participants were recruited (cases n = 254, controls n = 250, respectively). Tetra primer allele refractory mutation system (ARMS) PCR was used for resolving the genotypes of 5'10' methylenetetrahydrofolate reductase 'MTHFR' polymorphisms (rs1801133, rs1801131), 5' methyl tetrahydrofolate homocysteine methyltransferase 'MTR' polymorphism (rs1805087), paroxanse1 'PON1' polymorphism (rs662), and cystathionine beta synthase 'CBS' polymorphism (rs5742905)...
May 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28511023/efficacy-of-docosahexaenoic-acid-choline-vitamin-e-dha-cho-ve-in-paediatric-nash-a-randomized-controlled-clinical-trial
#3
Evelyn Zöhrer, Alisi Anna, Jörg Jahnel, Antonella Moscla, Claudia Della Corte, Annalisa Crudele, Günter Fauler, Valerio Nobili
Non-alcoholic steatohepatitis (NASH), a progressive form of non-alcoholic fatty liver disease (NAFLD), is one of the most common hepatic diseases in children. We conducted a randomized controlled clinical trial on children with biopsy-proven NASH based on a combinatorial nutritional approach compared to placebo. Participants were assigned to lifestyle modification plus placebo, or lifestyle modification plus a mix containing docosahexaenoic acid, choline and vitamin E (DHA-CHO-VE). Forty children and adolescents concluded the trial...
May 16, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28511020/acute-high-intensity-interval-running-increases-markers-of-gastrointestinal-damage-and-permeability-but-not-gastrointestinal-symptoms
#4
Jamie N Pugh, Samuel G Impey, Dominic A Doran, Simon C Fleming, James P Morton, Graeme L Close
Purpose To investigate the effects of high-intensity interval (HIIT) running on markers of gastrointestinal (GI) damage and permeability alongside subjective symptoms of GI discomfort. Methods Eleven male runners completed an acute bout of HIIT (eighteen 400 m runs at 120% VO<sub>2max</sub> ) where markers of GI permeability, intestinal damage and GI discomfort symptoms were assessed and compared with resting conditions. Results Compared to rest, HIIT significantly increased serum lactulose:rhamnose ratio (0...
May 16, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28511018/daytime-increase-in-caloric-intake-without-change-in-total-24-hr-caloric-intake-can-increase-adiposity-but-not-total-bodyweight-in-rats-with-inverted-feeding-pattern
#5
Lanni Sarmento da Rocha, Rhowena Jane Barbosa de Matos, Julliet Araújo de Souza, Ana Carolina Oliveira Costa, Sandra Lopes de Souza, Giselia de Santana Muniz, Elizabeth Nascimento
GOAL: To evaluate the effect of the food availability period on body weight, self-selection of macronutrients, adiposity, lipoprotein and serum glucose profiles without changing energy intake. METHODS: Young male rats were divided into two groups according to the availability of food during the light and dark phases of the cycle forming two groups: control (CG) and group with inverted feeding pattern (IFPG). Before inversion of food availability on the 80th day, circadian food intake was measured every four hours over 24 hours during three days...
May 16, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28489955/isometric-and-dynamic-strength-and-neuromuscular-attributes-as-predictors-of-vertical-jump-performance-in-11%C3%A2-13-year-old-male-athletes
#6
Brandon John McKinlay, Phillip J Wallace, Raffy Dotan, Devon Long, Craig Tokuno, David A Gabriel, Bareket Falk
In explosive contractions, neural activation is a major factor in determining the rate of torque development, while the latter is an important determinant of jump performance. However, the contribution of neuromuscular activation and rate of torque development to jump performance in children and youth is unclear. PURPOSE: To examine the relationships between the rate of neuromuscular activation, peak torque, rate of torque development, and jump performance in young male athletes. METHODS: Forty-one 12...
May 10, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28475846/resistance-exercise-attenuates-skeletal-muscle-oxidative-stress-systemic-pro-inflammatory-state-and-cachexia-in-walker-256-tumor-bearing-rats
#7
Camila Souza Padilha, Fernando H Borges, Lilian Eslaine Costa Mendes da Silva, Fernando Tadeu Trevisan Frajacomo, Alceu Afonso Jordao, José Alberto Duarte, Rubens Cecchini, Flávia Alessandra Guarnier, Rafael Deminice
The aim of this study was to investigate the effects of resistance exercise training (RET) on oxidative stress, systemic inflammatory markers and muscle wasting in Walker-256 tumor-bearing rats. Male (Wistar) rats were divided into 4 groups: sedentary controls (n=9); tumor-bearing (n=9); exercised (n=9); and tumor-bearing exercised (n=10). Exercised and tumor-bearing exercised rats were exposed to resistance exercise of climbing a ladder apparatus with weights tied to their tails during 6-wks. The physical activity of control and tumor-bearing rats was confined to the space of the cage...
May 5, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28467857/one-night-of-sleep-restriction-following-heavy-exercise-impairs-3-km-cycling-time-trial-performance-in-the-morning
#8
John D Chase, Paul A Roberson, Michael J Saunders, Trent A Hargens, Christopher J Womack, Nicholas D Luden
The goal of this project was to examine the influence of a single night of sleep restriction following heavy exercise on cycling time trial performance (TT) and skeletal muscle function in the morning. Seven recreational cyclists (age, 24 ± 7 yrs; VO2peak, 62 ± 4 ml・kg-1・min-1) completed two phases, each consisting of evening (EX1) and next-morning (EX2) exercise sessions. EX1 and EX2 were separated by an assigned sleep condition; a full night of rest (CON, 7.1 ± 0.3 hrs of sleep) or sleep restriction through early waking (SR, 2...
May 3, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28460195/chronic-probiotic-supplementation-with-or-without-glutamine-does-not-influence-the-ehsp72-response-to-a-multi-day-ultra-endurance-exercise-event
#9
Hannah Marshall, Bryna Cr Chrismas, Craig A Suckling, Justin D Roberts, Josh Foster, Lee Taylor
Probiotic and glutamine supplementation increases tissue Hsp72, but their influence on extracellular Hsp72 (eHsp72) has not been investigated. The aim of this study was to investigate the effect of chronic probiotic supplementation, with or without glutamine, on eHsp72 concentration before and after an ultramarathon. Thirty-two participants were split into three independent groups, where they ingested probiotic capsules (PRO, n = 11), probiotic + glutamine powder (PGLn, n = 10) or no supplementation (CON, n = 11), over a 12-week period prior to commencement of the Marathon des Sables (MDS)...
May 1, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28460190/exercise-improves-femoral-whole-bone-and-tissue-level-biomechanical-properties-in-hyperphagic-oletf-rats
#10
Laura C Ortinau, Melissa A Linden, R Scott Rector, Pamela S Hinton
An often-overlooked comorbidity of type 2 diabetes (T2D) is increased fracture risk. Since traditional T2D therapies focus solely on glucose homeostasis, there is an increased need for effective treatment strategies that improve both metabolic and bone health. The current study evaluated if previously reported protective effects of exercise (EX) on cortical bone geometry and biomechanical properties are due to the prevention of obesity compared to obese Otsuka Long-Evans Tokushima Fatty (OLETF) rats or the unique skeletal effects of exercise...
May 1, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28460182/effect-of-acute-nitrate-and-citrulline-supplementation-on-muscle-microvascular-response-to-ischemia-reperfusion-in-healthy-humans
#11
Thibault Le Roux-Mallouf, Florence Vibert, Stéphane Doutreleau, Samuel Verges
Nitric oxide (NO) is implicated in vasomotor control mechanisms altering the diameter of the vessels under various physiological and pathological conditions. There are two main NO production pathways, one NO synthase (NOS) independent (nitrate-nitrite-NO) and the other is NOS dependent (citrulline-arginine-NO). The objective of the study was to evaluate the effect of acute nitrate and citrulline supplementation on post ischemic vascular response in healthy subjects. Fourteen subjects performed two leg vascular occlusion tests, 3 days apart...
May 1, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28453944/dietary-intake-and-cardiometabolic-biomarkers-in-relation-to-insulin-resistance-and-hypertension-in-a-middle-aged-and-elderly-population-in-beijing-china
#12
Jia Wang, Zhongxin Hong, Li Wu, Bingjie Ding, Yanxia Bi, Zhongyi Gu, Wei Li
OBJECTIVE: To investigate the relationships of dietary intake and cardiometabolic biomarkers with insulin resistance and hypertension in rural middle-aged and elderly people in China. METHODS: One hundred and eight middle-aged and elderly adults were recruited in Zhangfang village in May 2014. We measured blood pressure, anthropometric parameters, and biochemical indexes, including high-sensitivity C-reactive protein (hsCRP), soluble intercellular adhesion molecule-1 (sICAM-1), glucose, insulin, and blood lipids...
April 28, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28407476/measurement-of-sodium-concentration-in-sweat-samples-comparison-of-five-analytical-techniques
#13
Eric D B Goulet, Audrey Asselin, Jonathan Gosselin, Lindsay B Baker
PURPOSE: Sweat sodium concentration (SSC) can be determined using different analytical techniques (ATs), which may have implications for athletes and scientists. This study compared the SSC measured with five ATs: ion chromatography (IChr), flame photometry (FP), direct (DISE) and indirect (IISE) ion selective electrode and ion conductivity (IC). METHODS: Seventy sweat samples collected from 14 athletes were analyzed with 5 instruments: the 883 Basic IC Plus (IChr, reference instrument), AAnalyst 200 (FP), Cobas 6000 (IISE), Sweat-Chek (IC) and B-722 Laqua Twin (DISE)...
April 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28407474/the-impact-of-low-and-no-caloric-sweeteners-on-glucose-absorption-incretin-secretion-and-glucose-tolerance
#14
Catherine B Chan, Zohre Hashemi, Fatheema B Subhan
The consumption of non-nutritive, low, or no-calorie sweeteners (LCS) is increasing globally. Previously thought to be physiologically inert, there is a growing body of evidence that LCS not only provide a sweet taste but may also elicit metabolic effects in the gastrointestinal tract. This review provides a brief overview of the chemical and receptor-binding properties and effects on chemosensation of different LCS but focuses on the extent to which LCS stimulates glucose transport, incretin and insulin secretion, and effects on glucose tolerance...
April 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28388366/ellagic-acid-protects-against-neuron-damage-in-ischemic-stroke-through-regulating-the-ratio-of-bcl-2-bax-expression
#15
Qing-Shan Liu, Ran Deng, Shuran Li, Xu Li, Keqin Li, Kebaituli Gulibanumu, Xueli Li, Rui Liu
To research the effects of ellagic acid (EA), a low molecular weight polyphenol, on neuron cells and function, and to evaluate whether EA can be safely utilized by humans as a functional food or therapeutic agent, an oxygen-glucose deprivation and reoxygenation (ODG/R) model in primary cultured rat cortical neurons were created in this work. Administration of EA significantly decreased the volume of cerebrum infarction and the neurological deficit scores of the rats; EA treatment also increased the number of Bcl-2-positive cells and the ratio of Bcl-2-positive to Bax-positive neurons in semidarkness zone near brain ischemic focus in the PCI model...
April 7, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28376310/improving-patient-s-home-cooking-a-case-series-of-participation-in-a-remote-culinary-coaching-program
#16
Rani Polak, David M Pober, Maggi A Budd, Julie K Silver, Edward M Phillips, Martin J Abrahamson
This case series describes and examines the outcomes of a remote culinary coaching program, aimed at improving nutrition through home cooking. Participants (n=4) improved attitudes about the perceived ease of home cooking (p<0.01) and self-efficacy to perform various culinary skills (p=0.02); and also in confidence to continue e-learning culinary skills and consume healthier food. We believe this program might be a viable response to the need for effective and scalable health related culinary interventions...
April 4, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28371585/validity-of-field-assessments-to-predict-peak-muscle-power-in-preschoolers
#17
Sara King-Dowling, Nicole A Proudfoot, John Cairney, Brian W Timmons
BACKGROUND: Field-based fitness assessments are time- and cost-efficient. However, no studies to date have reported the predictive value of field-based musculoskeletal fitness assessments in preschoolers. The purpose of this study was to determine the validity of two field assessments to predict peak muscle power in preschool-aged children. METHODS: Four-hundred nineteen 3- to 5-year olds participated (208 girls, 211 boys; mean age: 4.5±0.9 years). Peak power (PP) was evaluated using a modified 10-second Wingate protocol as the criterion standard...
April 3, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28363036/shrimp-oil-extracted-from-the-shrimp-processing-waste-reduces-the-development-of-insulin-resistance-and-metabolic-phenotypes-in-diet-induced-obese-rats
#18
Sandhya Nair, Jacques Gagnon, Claude Pelletier, Nadia Tchoukanova, Junzeng Zhang, H Stephen Ewart, Vanya Ewart, Guangling Jiao, Yanwen Wang
Diet-induced obesity, insulin resistance, impaired glucose tolerance, chronic inflammation and oxidative stress represent the main features of type 2 diabetes mellitus. The present study was conducted to examine the efficacy and mechanisms of shrimp oil on glucose homeostasis in obese rats. Male CD rats fed a high-fat diet (60 kcal% fat) and 20% fructose-drinking water were divided into four groups and treated with the dietary replacement of 0, 10% (SO10), 15% (SO15), or 20% (SO20) of lard with shrimp oil for 10 weeks...
March 31, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28340302/does-the-type-of-activity-break-from-prolonged-sitting-differentially-impact-on-post-prandial-blood-glucose-reductions-an-exploratory-analysis
#19
Robyn N Larsen, Paddy C Dempsey, Francis Dillon, Megan Grace, Bronwyn A Kingwell, Neville Owen, David W Dunstan
Frequent breaks in prolonged sitting are associated beneficially with glycaemic control. However, the contribution of energy expenditure to these relationships has not been well characterised. In this exploratory analysis, data from three laboratory trials that standardised test meals, cohort characteristics (overweight/obese, sedentary), and break frequency and duration were pooled. Higher energy expenditures of different types of breaks (standing, light- or moderate-intensity walking) were associated with lower post-prandial glucose and insulin responses in a dose-dependent manner...
March 24, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28334548/waist-circumference-is-associated-with-liver-fat-in-black-and-white-adolescents
#20
SoJung Lee, Jennifer L Kuk, Chris Boesch, Silva Arslanian
We examined whether waist circumference (WC) is associated with liver fat in black and white adolescents. Liver fat was measured using a 3T proton magnetic resonance spectroscopy (1H-MRS) in 152 overweight/obese adolescents (94 black and 58 white, BMI >85th percentile, 12-18 yrs) without liver diseases or diabetes. WC was measured at the last rib. Total and visceral adipose tissue (VAT) were measured by DXA and MRI, respectively. The proportion of fatty liver (defined as liver fat >5.0% by 1H-MRS) was lower (P<0...
March 23, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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