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Journal of Nutrition

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https://www.readbyqxmd.com/read/29070712/l-serine-enhances-light-induced-circadian-phase-resetting-in-mice-and-humans
#1
Shinobu Yasuo, Ayaka Iwamoto, Sang-Il Lee, Shotaro Ochiai, Rina Hitachi, Satomi Shibata, Nobuo Uotsu, Chie Tarumizu, Sayuri Matsuoka, Mitsuhiro Furuse, Shigekazu Higuchi
Background: The circadian clock is modulated by the timing of ingestion or food composition, but the effects of specific nutrients are poorly understood.Objective: We aimed to identify the amino acids that modulate the circadian clock and reset the light-induced circadian phase in mice and humans.Methods: Male CBA/N mice were orally administered 1 of 20 l-amino acids, and the circadian and light-induced phase shifts of wheel-running activity were analyzed. Antagonists of several neurotransmitter pathways were injected before l-serine administration, and light-induced phase shifts were analyzed...
October 25, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29093015/muscle-protein-synthesis-and-muscle-mass-in-healthy-older-men
#2
Daniel Tomé
No abstract text is available yet for this article.
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29070713/long-term-intake-of-a-high-protein-diet-affects-body-phenotype-metabolism-and-plasma-hormones-in-mice
#3
John P Vu, Leon Luong, William F Parsons, Suwan Oh, Daniel Sanford, Arielle Gabalski, John Rb Lighton, Joseph R Pisegna, Patrizia M Germano
Background: High-protein diets (HPDs) recently have been used to obtain body weight and fat mass loss and expand muscle mass. Several studies have documented that HPDs reduce appetite and food intake.Objective: Our goal was to determine the long-term effects of an HPD on body weight, energy intake and expenditure, and metabolic hormones.Methods: Male C57BL/6 mice (8 wk old) were fed either an HPD (60% of energy as protein) or a control diet (CD; 20% of energy as protein) for 12 wk. Body composition and food intakes were determined, and plasma hormone concentrations were measured in mice after being fed and after overnight feed deprivation at several time points...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29070711/dietary-b-vitamin-intake-is-associated-with-lower-urinary-monomethyl-arsenic-and-oxidative-stress-marker-15-f2t-isoprostane-among-new-hampshire-adults
#4
Caitlin G Howe, Zhigang Li, Michael S Zens, Thomas Palys, Yu Chen, Jacqueline Y Channon, Margaret R Karagas, Shohreh F Farzan
Background: Arsenic exposure has been associated with an increased risk of cardiovascular disease (CVD). Growing evidence suggests that B vitamins facilitate arsenic metabolism and may protect against arsenic toxicity. However, to our knowledge, few studies have evaluated this in US populations.Objective: Our objective was to examine whether higher B vitamin intake is associated with enhanced arsenic metabolism and lower concentrations of preclinical markers of CVD among New Hampshire adults.Methods: We used weighted quantile sum (WQS) regression to evaluate the collective impact of 6 dietary B vitamins (thiamin, riboflavin, folate, niacin, and vitamins B-6 and B-12) on 1) the proportion of arsenic metabolites in urine and 2) 6 CVD-related markers [including urinary 15-F2t-isoprostane (15-F2t-IsoP)] among 418 participants (26-75 y of age) from the New Hampshire Health Study...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29070710/carbohydrate-taste-sensitivity-is-associated-with-starch-intake-and-waist-circumference-in-adults
#5
Julia Yq Low, Kathleen E Lacy, Robert L McBride, Russell Sj Keast
Background: Recent studies have proposed that humans may perceive complex carbohydrates and that sensitivity to simple carbohydrates is independent of sensitivity to complex carbohydrates. Variation in oral complex carbohydrate sensitivity may influence food consumption.Objective: This study aimed to investigate the associations between oral complex carbohydrate sensitivity, anthropometry, and dietary intake in adults.Methods: We assessed oral sensitivity to complex carbohydrates (maltodextrin and oligofructose) by measuring detection thresholds (DTs) and suprathreshold intensity perceptions (STs) for 34 participants, including 16 men (mean ± SEM age : 26...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29070709/increased-protein-consumption-during-the-day-from-an-energy-restricted-diet-augments-satiety-but-does-not-reduce-daily-fat-or-carbohydrate-intake-on-a-free-living-test-day-in-overweight-women
#6
Jess A Gwin, Kevin C Maki, Heather J Leidy
Background: Higher-protein (HP) energy-restriction diets improve weight management to a greater extent than normal-protein (NP) versions. Potential mechanisms of action with regard to assessment of eating behaviors across the day have not been widely examined during energy restriction.Objectives: The objectives of this study were to test whether the consumption of an HP energy-restriction diet reduces carbohydrate and fat intakes through improvements in daily appetite, satiety, and food cravings compared with NP versions and to test whether protein type within the NP diets alters protein-related satiety...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29070708/vitamin-a-status-in-children-mathematical-modeling-provides-new-progress-on-an-old-problem
#7
Janet A Novotny
No abstract text is available yet for this article.
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29046404/cranberry-reduces-the-risk-of-urinary-tract-infection-recurrence-in-otherwise-healthy-women-a-systematic-review-and-meta-analysis
#8
REVIEW
Zhuxuan Fu, DeAnn Liska, David Talan, Mei Chung
Background: Cranberry (Vaccinium spp.) has been advocated for treatment of urinary tract infection (UTI); however, its efficacy is controversial. Women have a 50% risk of UTI over their lifetime, and ∼20-30% experience a subsequent UTI recurrence.Objective: We conducted this meta-analysis to assess the effect of cranberry on the risk of UTI recurrence in otherwise healthy women.Methods: Literature published before January 2011 was obtained from 2 published systematic reviews, and we conducted updated searches in EMBASE and MEDLINE (through July 2017)...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29021371/consumption-of-a-double-fortified-salt-affects-perceptual-attentional-and-mnemonic-functioning-in-women-in-a-randomized-controlled-trial-in-india
#9
RANDOMIZED CONTROLLED TRIAL
Michael J Wenger, Laura E Murray-Kolb, Julie Eh Nevins, Sudha Venkatramanan, Gregory A Reinhart, Annie Wesley, Jere D Haas
Background: Iron deficiency and iron deficiency anemia have been shown to have negative effects on aspects of perception, attention, and memory.Objective: The purpose of this investigation was to assess the extent to which increases in dietary iron consumption are related to improvements in behavioral measures of perceptual, attentional, and mnemonic function.Methods: Women were selected from a randomized, double-blind, controlled food-fortification trial involving ad libitum consumption of either a double-fortified salt (DFS) containing 47 mg potassium iodate/kg and 3...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/29021369/new-evidence-against-chromium-as-an-essential-trace-element
#10
REVIEW
John B Vincent
Nearly 60 y ago, chromium, as the trivalent ion, was proposed to be an essential element, but the results of new studies indicate that chromium currently can only be considered pharmacologically active and not an essential element. Regardless, articles still continue to appear in the literature claiming chromium is an essential element. Chromium has been marketed as an agent to reduce body mass and develop muscle; however, such marketing claims are no longer allowed in the United States because these claims, similar to claims of essential status, are not supported by experiments...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28931584/use-of-a-super-child-approach-to-assess-the-vitamin-a-equivalence-of-moringa-oleifera-leaves-develop-a-compartmental-model-for-vitamin-a-kinetics-and-estimate-vitamin-a-total-body-stores-in-young-mexican-children
#11
Veronica Lopez-Teros, Jennifer Lynn Ford, Michael H Green, Guangwen Tang, Michael A Grusak, Luis Quihui-Cota, Tawanda Muzhingi, Mariela Paz-Cassini, Humberto Astiazaran-Garcia
Background: Worldwide, an estimated 250 million children <5 y old are vitamin A (VA) deficient. In Mexico, despite ongoing efforts to reduce VA deficiency, it remains an important public health problem; thus, food-based interventions that increase the availability and consumption of provitamin A-rich foods should be considered.Objective: The objectives were to assess the VA equivalence of 2H-labeled Moringa oleifera (MO) leaves and to estimate both total body stores (TBS) of VA and plasma retinol kinetics in young Mexican children...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28855419/protein-ingestion-before-sleep-increases-overnight-muscle-protein-synthesis-rates-in-healthy-older-men-a-randomized-controlled-trial
#12
RANDOMIZED CONTROLLED TRIAL
Imre Wk Kouw, Andrew M Holwerda, Jorn Trommelen, Irene Fleur Kramer, Jacqueline Bastiaanse, Shona L Halson, Will Kwh Wodzig, Lex B Verdijk, Luc Jc van Loon
Background: The loss of skeletal muscle mass with aging has been attributed to the blunted anabolic response to protein intake. Presleep protein ingestion has been suggested as an effective strategy to compensate for such anabolic resistance.Objective: We assessed the efficacy of presleep protein ingestion on dietary protein digestion and absorption kinetics and overnight muscle protein synthesis rates in older men.Methods: In a randomized, double-blind, parallel design, 48 older men (mean ± SEM age: 72 ± 1 y) ingested 40 g casein (PRO40), 20 g casein (PRO20), 20 g casein plus 1...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28835387/supplementing-breakfast-with-a-vitamin-d-and-leucine-enriched-whey-protein-medical-nutrition-drink-enhances-postprandial-muscle-protein-synthesis-and-muscle-mass-in-healthy-older-men
#13
RANDOMIZED CONTROLLED TRIAL
Audrey Chanet, Sjors Verlaan, Jérôme Salles, Christophe Giraudet, Véronique Patrac, Véronique Pidou, Corinne Pouyet, Nordine Hafnaoui, Adeline Blot, Noël Cano, Nicolas Farigon, Anke Bongers, Marion Jourdan, Yvette Luiking, Stéphane Walrand, Yves Boirie
Background: A promising strategy to help older adults preserve or build muscle mass is to optimize muscle anabolism through providing an adequate amount of high-quality protein at each meal.Objective: This "proof of principle" study investigated the acute effect of supplementing breakfast with a vitamin D and leucine-enriched whey protein medical nutrition drink on postprandial muscle protein synthesis and longer-term effect on muscle mass in healthy older adults.Methods: A randomized, placebo-controlled, double-blind study was conducted in 24 healthy older men [mean ± SD: age 71 ± 4 y; body mass index (in kg/m2) 24...
December 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28978679/proline-precursors-and-collagen-synthesis-biochemical-challenges-of-nutrient-supplementation-and-wound-healing
#14
REVIEW
Vance L Albaugh, Kaushik Mukherjee, Adrian Barbul
Wound healing is a complex process marked by highly coordinated immune fluxes into an area of tissue injury; these are required for re-establishment of normal tissue integrity. Along with this cascade of cellular players, wound healing also requires coordinated flux through a number of biochemical pathways, leading to synthesis of collagen and recycling or removal of damaged tissues. The availability of nutrients, especially amino acids, is critical for wound healing, and enteral supplementation has been intensely studied as a potential mechanism to augment wound healing-either by increasing tensile strength, decreasing healing time, or both...
November 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28978678/pufa-status-and-methylmercury-exposure-are-not-associated-with-leukocyte-telomere-length-in-mothers-or-their-children-in-the-seychelles-child-development-study
#15
Alison J Yeates, Sally W Thurston, Huiqi Li, Maria S Mulhern, Emeir M McSorley, Gene E Watson, Conrad F Shamlaye, J J Strain, Gary J Myers, Philip W Davidson, Edwin van Wijngaarden, Karin Broberg
Background: Leukocyte telomere length (TL) is associated with age-related diseases and early mortality, but there is a lack of data on the determinants of TL in early life. Evidence suggests that dietary intake of marine n-3 (ω-3) polyunsaturated fatty acids (PUFAs) is protective of telomere attrition, yet the effect of methylmercury exposure, also found in fish, on TL is unknown.Objective: The aim of this study was to investigate the associations between prenatal PUFA status, methylmercury exposure, and TL in mothers and children in the SCDS (Seychelles Child Development Study), for whom fish consumption is high...
November 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28978676/diet-quality-is-linked-to-insulin-resistance-among-adults-in-china
#16
Zhihong Wang, Linda S Adair, Jianwen Cai, Penny Gordon-Larsen, Anna Maria Siega-Riz, Bing Zhang, Barry M Popkin
Background: Little is known about the impact of Chinese diet quality changes on diabetes-related markers.Objective: The present study examined the association of changes in overall diet quality with various biomarkers of diabetes among adults in China.Methods: The current analysis used longitudinal diet data from 1991 to 2006 and fasting blood samples from 2009 for 4734 adults aged 18-65 y from the China Health and Nutrition Survey. Dietary intake was assessed by using 3 consecutive 24-h recalls and household food weighing...
November 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28954841/consumption-of-iron-biofortified-beans-positively-affects-cognitive-performance-in-18-to-27-year-old-rwandan-female-college-students-in-an-18-week-randomized-controlled-efficacy-trial
#17
Laura E Murray-Kolb, Michael J Wenger, Samuel P Scott, Stephanie E Rhoten, Mercy G Lung'aho, Jere D Haas
Background: Evidence shows that iron deficiency in adulthood may affect cognitive performance, possibly by disrupting neurotransmitter regulation or brain energy metabolism. Women of reproductive age (WRA) are among those who are most vulnerable to iron deficiency; however, they have been largely ignored in the literature relating iron status to cognition.Objective: Our aim was to determine the efficacy of iron-biofortified beans in improving cognition in WRA compared with control beans.Methods: A double-blind, randomized intervention study was conducted in 150 women aged 18-27 y with low iron status (ferritin <20 μg/L)...
November 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28954840/a-high-carbohydrate-high-fiber-low-fat-diet-results-in-weight-loss-among-adults-at-high-risk-of-type-2-diabetes
#18
RANDOMIZED CONTROLLED TRIAL
Allison C Sylvetsky, Sharon L Edelstein, Geoffrey Walford, Edward J Boyko, Edward S Horton, Uzoma N Ibebuogu, William C Knowler, Maria G Montez, Marinella Temprosa, Mary Hoskin, Kristina I Rother, Linda M Delahanty
Background: Weight loss is a key factor in reducing diabetes risk. The Diabetes Prevention Program (DPP) is a completed clinical trial that randomly assigned individuals at high risk of diabetes to a placebo (PLBO), metformin (MET), or intensive lifestyle intervention (ILS) group, which included physical activity (PA) and reduced dietary fat intake.Objective: We aimed to evaluate the associations between diet and weight at baseline and to identify specific dietary factors that predicted weight loss among DPP participants...
November 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28954839/young-pigs-consuming-lysozyme-transgenic-goat-milk-are-protected-from-clinical-symptoms-of-enterotoxigenic-escherichia-coli-infection
#19
Lydia C Garas, Caitlin A Cooper, Matthew W Dawson, Jane-Ling Wang, James D Murray, Elizabeth A Maga
Background: Diarrheal diseases in infancy and childhood are responsible for substantial morbidity and mortality in developing nations. Lysozyme, an antimicrobial component of human milk, is thought to play a role in establishing a healthy intestinal microbiota and immune system. Consumption of breast milk has been shown to prevent intestinal infections and is a recommended treatment for infants with diarrhea.Objective: This study aimed to examine the ability of lysozyme-rich goat milk to prevent intestinal infection...
November 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28931585/fatty-acid-proportions-in-plasma-cholesterol-esters-and-phospholipids-are-positively-correlated-in-various-swedish-populations
#20
Matti Marklund, Ronnie Pingel, Fredrik Rosqvist, Anna Karin Lindroos, Jan W Eriksson, Bengt Vessby, Jan Oscarsson, Lars Lind, Ulf Risérus
Background: Fatty acid (FA) proportions in cholesterol esters (CEs) and plasma phospholipids are widely used as dietary biomarkers. Information on how proportions in these fractions correlate could have implications for interpretation and use of FA biomarkers in observational and interventional studies.Objective: We investigated correlations between FA proportions in CEs and phospholipids in free-living individuals and assessed how diet-induced alterations of FA proportions correlate between fractions.Methods: Spearman's rank correlation coefficients (rs) between FA proportions (percentage of total FAs) in circulating CEs and phospholipids were calculated separately in 8 individual study populations including Swedish females and males (N = 2052; age range: 11-84 y), and pooled by inverse-variance weighted meta-analysis...
November 2017: Journal of Nutrition
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