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Journal of Nutrition

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https://www.readbyqxmd.com/read/27903833/meal-distribution-of-dietary-protein-and-leucine-influences-long-term-muscle-mass-and-body-composition-in-adult-rats
#1
Layne E Norton, Gabriel J Wilson, Christopher J Moulton, Donald K Layman
BACKGROUND: Protein quantity and quality at a meal affect muscle protein synthesis (MPS); however, long-term effects of protein distribution at individual meals on adult muscle mass remain unknown. OBJECTIVE: We used a precise feeding protocol in adult rats to determine if optimizing postmeal MPS response by modifying the meal distribution of protein, and the amino acid leucine (Leu), would affect muscle mass. METHODS: Two studies were conducted with the use of male Sprague-Dawley rats (∼300 g) trained to consume 3 meals/d, then assigned to diet treatments with identical macronutrient contents (16% of energy from protein, 54% from carbohydrates, and 30% from fat) but differing in protein quality or meal distribution...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27903832/predictors-of-the-size-of-the-exchangeable-zinc-pool-differ-between-children-and-adults
#2
Leland V Miller, K Michael Hambidge, Janet C King, Jamie E Westcott, Nancy F Krebs
BACKGROUND: The size of the rapidly exchanging pool of body zinc has been suggested as having potential utility as a biomarker of zinc status. Knowledge of the relations of exchangeable zinc pool (EZP) size to relevant variables is necessary to adequately evaluate its use as a biomarker. OBJECTIVE: We used regression analysis to investigate associations of EZP with age, sex, body size, and zinc nutrition variables. METHODS: Data were compiled from 18 isotope tracer studies of zinc absorption in 247 children and adults (248 observations) in which EZP and relevant variables (e...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27903831/dietary-mung-bean-protein-reduces-hepatic-steatosis-fibrosis-and-inflammation-in-male-mice-with-diet-induced-nonalcoholic-fatty-liver-disease
#3
Hitoshi Watanabe, Yuka Inaba, Kumi Kimura, Shun-Ichiro Asahara, Yoshiaki Kido, Michihiro Matsumoto, Takayasu Motoyama, Nobuhiko Tachibana, Shuichi Kaneko, Mitsutaka Kohno, Hiroshi Inoue
BACKGROUND: As the prevalence of nonalcoholic fatty liver disease (NAFLD), including steatosis and nonalcoholic steatohepatitis, is increasing, novel dietary approaches are required for the prevention and treatment of NAFLD. OBJECTIVE: We evaluated the potential of mung bean protein isolate (MuPI) to prevent NAFLD progression. METHODS: In Expts. 1 and 2, the hepatic triglyceride (TG) concentration was compared between 8-wk-old male mice fed a high-fat diet (61% of energy from fat) containing casein, MuPI, and soy protein isolate and an MuPI-constituent amino acid mixture as a source of amino acids (18% of energy) for 4 wk...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27903830/early-life-sugar-consumption-affects-the-rat-microbiome-independently-of-obesity
#4
Emily E Noble, Ted M Hsu, Roshonda B Jones, Anthony A Fodor, Michael I Goran, Scott E Kanoski
BACKGROUND: The gut microbiome has been implicated in various metabolic and neurocognitive disorders and is heavily influenced by dietary factors, but there is a paucity of research on the effects of added sugars on the gut microbiome. OBJECTIVE: With the use of a rodent model, our goal was to determine how added-sugar consumption during the juvenile and adolescent phase of development affects the gut microbiome. METHODS: Forty-two juvenile male Sprague-Dawley rats [postnatal day (PND) 26; 50-70 g] were given access to 1 of 3 different 11%-carbohydrate solutions designed to model a range of monosaccharide ratios commonly consumed in sugar-sweetened beverages: 1) 35% fructose:65% glucose, 2) 50% fructose:50% glucose, 3) 65% fructose:35% glucose, and 4) control (no sugar)...
November 30, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27881597/assessment-of-regression-models-for-adjustment-of-iron-status-biomarkers-for-inflammation-in-children-with-moderate-acute-malnutrition-in-burkina-faso
#5
Bernardette Cichon, Christian Ritz, Christian Fabiansen, Vibeke Brix Christensen, Suzanne Filteau, Henrik Friis, Pernille Kæstel
BACKGROUND: Biomarkers of iron status are affected by inflammation. In order to interpret them in individuals with inflammation, the use of correction factors (CFs) has been proposed. OBJECTIVE: The objective of this study was to investigate the use of regression models as an alternative to the CF approach. METHODS: Morbidity data were collected during clinical examinations with morbidity recalls in a cross-sectional study in children aged 6-23 mo with moderate acute malnutrition...
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27881596/combined-iron-deficiency-and-low-aerobic-fitness-doubly-burden-academic-performance-among-women-attending-university
#6
Samuel P Scott, Mary Jane De Souza, Karsten Koehler, Laura E Murray-Kolb
BACKGROUND: Academic success is a key determinant of future prospects for students. Cognitive functioning has been related to nutritional and physical factors. Here, we focus on iron status and aerobic fitness in young-adult female students given the high rate of iron deficiency and declines in fitness reported in this population. OBJECTIVES: We sought to explore the combined effects of iron status and fitness on academic success and to determine whether these associations are mediated by cognitive performance...
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27881595/decisive-decisions-on-production-compared-with-market-strategies-to-improve-diets-in-rural-africa
#7
Jessica C Fanzo
No abstract text is available yet for this article.
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27881594/hepatic-activity-and-transcription-of-betaine-homocysteine-methyltransferase-methionine-synthase-and-cystathionine-synthase-in-periparturient-dairy-cows-are-altered-to-different-extents-by-supply-of-methionine-and-choline
#8
Zheng Zhou, Timothy A Garrow, Xianwen Dong, Daniel N Luchini, Juan J Loor
BACKGROUND: Compared with choline, Met enhances milk yield and feed intake, and elicits a better immuno-metabolic status in periparturient cows. It is unknown whether hepatic activity and transcription of betaine-homocysteine methyltransferase (BHMT), 5-methyltetrahydrofolate-homocysteine methyltransferase (MTR), and cystathionine β-synthase (CBS) are responsive to Met and choline supply. OBJECTIVE: This study sought to characterize hepatic BHMT, MTR, and CBS transcription and activity in response to Met and choline supplementation...
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27881593/dairy-food-intake-is-associated-with-reproductive-hormones-and-sporadic-anovulation-among-healthy-premenopausal-women
#9
Keewan Kim, Jean Wactawski-Wende, Kara A Michels, Torie C Plowden, Ellen N Chaljub, Lindsey A Sjaarda, Sunni L Mumford
BACKGROUND: Dairy food intake has been associated with infertility; however, little is known with regard to associations with reproductive hormones or anovulation. OBJECTIVE: We investigated whether intakes of dairy foods and specific nutrients were associated with reproductive hormone concentrations across the cycle and the risk of sporadic anovulation among healthy women. METHODS: We prospectively measured serum reproductive hormones ≤8 times/menstrual cycle for 2 cycles from 259 regularly menstruating women (mean age: 27...
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27881592/the-c-3%C3%AE-epimer-of-25-hydroxycholecalciferol-from-endogenous-and-exogenous-sources-supports-normal-growth-and-bone-mineral-density-in-weanling-rats
#10
Marija Djekic-Ivankovic, Paula Lavery, Sherry Agellon, Hope A Weiler
BACKGROUND: The C-3α epimer of 25-hydroxycholecalciferol [3-epi-25(OH)D3] is elevated in infants. OBJECTIVES: We tested whether increasing cholecalciferol intake results in a dose-response in plasma 3-epi-25(OH)D3 We also examined bone and mineral metabolism in response to 3-epi-25(OH)D3 treatment. METHODS: Sprague Dawley rats (4 wk old) were randomly assigned (n = 6/group of each sex) to AIN-93G diets with cholecalciferol at 1 (control), 2, or 4 IU/g diet for objective 1 and to diets with 3-epi-25(OH)D3 at 0...
November 23, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27852871/whole-body-docosahexaenoic-acid-synthesis-secretion-rates-in-rats-are-constant-across-a-large-range-of-dietary-%C3%AE-linolenic-acid-intakes
#11
Anthony F Domenichiello, Alex P Kitson, Adam H Metherel, Chuck T Chen, Kathryn E Hopperton, P Mark Stavro, Richard P Bazinet
BACKGROUND: Docosahexaenoic acid (DHA) is an ω-3 (n-3) polyunsaturated fatty acid (PUFA) thought to be important for brain function. Although the main dietary source of DHA is fish, DHA can also be synthesized from α-linolenic acid (ALA), which is derived from plants. Enzymes involved in DHA synthesis are also active toward ω-6 (n-6) PUFAs to synthesize docosapentaenoic acid n-6 (DPAn-6). It is unclear whether DHA synthesis from ALA is sufficient to maintain brain DHA. OBJECTIVE: The objective of this study was to determine how different amounts of dietary ALA would affect whole-body DHA and DPAn-6 synthesis rates...
November 16, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27852870/biological-activities-of-extracellular-vesicles-and-their-cargos-from-bovine-and-human-milk-in-humans-and-implications-for-infants
#12
REVIEW
Janos Zempleni, Ana Aguilar-Lozano, Mahrou Sadri, Sonal Sukreet, Sonia Manca, Di Wu, Fang Zhou, Ezra Mutai
Extracellular vesicles (EVs) in milk harbor a variety of compounds, including lipids, proteins, noncoding RNAs, and mRNAs. Among the various classes of EVs, exosomes are of particular interest, because cargo sorting in exosomes is a regulated, nonrandom process and exosomes play essential roles in cell-to-cell communication. Encapsulation in exosomes confers protection against enzymatic and nonenzymatic degradation of cargos and provides a pathway for cellular uptake of cargos by endocytosis of exosomes. Compelling evidence suggests that exosomes in bovine milk are transported by intestinal cells, vascular endothelial cells, and macrophages in human and rodent cell cultures, and bovine-milk exosomes are delivered to peripheral tissues in mice...
November 16, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27807042/mice-fed-a-high-fat-diet-supplemented-with-resistant-starch-display-marked-shifts-in-the-liver-metabolome-concurrent-with-altered-gut-bacteria
#13
Dorothy A Kieffer, Brian D Piccolo, Maria L Marco, Eun Bae Kim, Michael L Goodson, Michael J Keenan, Tamara N Dunn, Knud Erik Bach Knudsen, Roy J Martin, Sean H Adams
BACKGROUND: High-amylose-maize resistant starch type 2 (HAMRS2) is a fermentable dietary fiber known to alter the gut milieu, including the gut microbiota, which may explain the reported effects of resistant starch to ameliorate obesity-associated metabolic dysfunction. OBJECTIVE: Our working hypothesis was that HAMRS2-induced microbiome changes alter gut-derived signals (i.e., xenometabolites) reaching the liver via the portal circulation, in turn altering liver metabolism by regulating gene expression and other pathways...
November 2, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27807041/almond-consumption-during-energy-restriction-lowers-truncal-fat-and-blood-pressure-in-compliant-overweight-or-obese-adults
#14
Jaapna Dhillon, Sze-Yen Tan, Richard D Mattes
BACKGROUND: Inclusion of almonds in an energy-restricted diet has been reported both to enhance or to have no effect on weight loss. Their effects specifically on visceral body fat stores during energy restriction have not been widely examined. In addition, almond consumption has been associated with reduced blood pressure (BP), but whether this is linked to or independent of changes in body composition has to our knowledge not been examined. OBJECTIVE: We evaluated the effects of consuming almonds as part of an energy-restricted diet on body composition, specifically visceral adipose tissue (VAT) and BP, compared to a nut-free energy-restricted diet...
November 2, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27807040/a-combined-intervention-of-zinc-multiple-micronutrients-and-albendazole-does-not-ameliorate-environmental-enteric-dysfunction-or-stunting-in-rural-malawian-children-in-a-double-blind-randomized-controlled-trial
#15
Alfred Z Wang, Robert J Shulman, Audrey H Crocker, Chrissie Thakwalakwa, Kenneth M Maleta, Sridevi Devaraj, Mark J Manary, Indi Trehan
BACKGROUND: Environmental enteric dysfunction (EED) and linear growth stunting affect many rural agrarian children in the developing world and contribute to the persistently high rates of stunting that are observed worldwide. Effective interventions to consistently ameliorate EED are lacking. OBJECTIVE: We tested whether a bundle of safe and affordable interventions would decrease EED and stunting over 12-24 wk in a cohort of rural Malawian children 12-35 mo old...
November 2, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27807039/the-use-of-digital-images-in-24-hour-recalls-may-lead-to-less-misestimation-of-portion-size-compared-with-traditional-interviewer-administered-recalls
#16
Sharon I Kirkpatrick, Nancy Potischman, Kevin W Dodd, Deirdre Douglass, Thea P Zimmerman, Lisa L Kahle, Frances E Thompson, Stephanie M George, Amy F Subar
BACKGROUND: The Automated Self-Administered 24-hour (ASA24) dietary recall system enhances the feasibility of collecting high-quality intake data in population-based studies. OBJECTIVE: The aim of this study was to assess the accuracy of portion size reporting in the ASA24 compared with interviewer-administered recalls. METHODS: True intake for 3 meals was ascertained in 81 adults aged 20-70 y from the Washington, DC area. Participants were randomly assigned to complete an unannounced ASA24 or an interviewer-administered Automated Multiple-Pass Method (AMPM) recall the following day...
November 2, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27807038/metabolomic-changes-in-serum-of-children-with-different-clinical-diagnoses-of-malnutrition
#17
Valeria Di Giovanni, Celine Bourdon, Dominic X Wang, Swapna Seshadri, Edward Senga, Christian J Versloot, Wieger Voskuijl, Richard D Semba, Indi Trehan, Ruin Moaddel, M Isabel Ordiz, Ling Zhang, John Parkinson, Mark J Manary, Robert Hj Bandsma
BACKGROUND: Mortality in children with severe acute malnutrition (SAM) remains high despite standardized rehabilitation protocols. Two forms of SAM are classically distinguished: kwashiorkor and marasmus. Children with kwashiorkor have nutritional edema and metabolic disturbances, including hypoalbuminemia and hepatic steatosis, whereas marasmus is characterized by severe wasting. The metabolic changes underlying these phenotypes have been poorly characterized, and whether homeostasis is achieved during hospital stay is unclear...
November 2, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27807037/two-days-of-calorie-deprivation-induced-by-underfeeding-and-aerobic-exercise-degrades-mood-and-lowers-interstitial-glucose-but-does-not-impair-cognitive-function-in-young-adults
#18
Harris R Lieberman, Asma S Bukhari, John A Caldwell, Marques A Wilson, Caroline R Mahoney, Stefan M Pasiakos, James P McClung, Tracey J Smith
BACKGROUND: In studies assessing the effects of acute undernutrition on cognitive function, volunteers are sedentary and findings are equivocal, even though glucose concentrations fall substantially. However, military personnel and endurance athletes often are underfed when physical demands, and consequently energy expenditure, are substantial. OBJECTIVE: The objective of this study was to determine whether 2 d of near-total calorie deprivation combined with aerobic exercise degraded cognitive performance and mood...
November 2, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27798347/associations-between-vitamin-d-and-cardiovascular-disease-risk-factors-in-african-americans-are-partly-explained-by-circulating-adipokines-and-c-reactive-protein-the-jackson-heart-study
#19
Rumana J Khan, Samson Y Gebreab, Pia Riestra, Mario Sims, Amadou Gaye, Ruihua Xu, Sharon K Davis
BACKGROUND: Although it is recognized that vitamin D deficiency is associated with cardiovascular disease (CVD) risk factors, and is more common in African Americans (AAs), the pathologic mechanisms by which vitamin D may influence these risk factors are poorly understood. OBJECTIVES: We explored the association between vitamin D status, as reflected by serum 25-hydroxyvitamin D [25(OH)D] concentrations, and CVD risk factors including mean arterial pressure (MAP), fasting plasma glucose (FPG), plasma HDL cholesterol, and waist circumference (WC) in adult AAs...
October 26, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27798343/whole-grain-fiber-composition-influences-site-of-nutrient-digestion-standardized-ileal-digestibility-of-amino-acids-and-whole-body-energy-utilization-in-grower-pigs
#20
Janelle M Fouhse, Jun Gao, Thava Vasanthan, Marta Izydorczyk, Aaron D Beattie, Ruurd T Zijlstra
BACKGROUND: Variant chemical composition and physical structure of whole grains may change the site of energy digestion from the small to the large intestine. OBJECTIVE: We determined the site of nutrient digestion, standardized ileal digestibility (SID) of amino acids (AAs), and net energy (NE) value of barley cultivars that vary in nutrient composition compared with wheat. METHODS: Ileal-cannulated barrows (27.7 kg initial body weight) were fed diets containing 800 g whole grains/kg alongside a basal and nitrogen-free diet for calculations in a 6 (period) × 7 (diet) Youden square...
October 26, 2016: Journal of Nutrition
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