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Journal of Nutrition

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https://www.readbyqxmd.com/read/28446633/lactose-intolerance-lct-13910c-t-genotype-is-associated-with-plasma-25-hydroxyvitamin-d-concentrations-in-caucasians-a-mendelian-randomization-study
#1
Ohood Alharbi, Ahmed El-Sohemy
Background: The LCT-13910C>T gene variant is associated with lactose intolerance (LI) in different ethnic groups. Individuals with LI often limit or avoid dairy consumption, a major dietary source of vitamin D in North America, which may lead to inadequate vitamin D intake.Objective: The objective was to determine the prevalence of genotypes predictive of LI in different ethnic groups living in Canada and to determine whether the LCT genotype is associated with plasma 25(OH)D concentrations.Methods: Blood samples were drawn from a total of 1495 men and women aged 20-29 y from the Toronto Nutrigenomics and Health Study for genotyping and plasma 25(OH)D analysis...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28446632/dietary-methionine-restriction-regulates-liver-protein-synthesis-and-gene-expression-independently-of-eukaryotic-initiation-factor-2-phosphorylation-in-mice
#2
Ashley P Pettit, William O Jonsson, Albert R Bargoud, Emily T Mirek, Frederick F Peelor, Yongping Wang, Thomas W Gettys, Scot R Kimball, Benjamin F Miller, Karyn L Hamilton, Ronald C Wek, Tracy G Anthony
Background: The phosphorylation of eukaryotic initiation factor 2 (p-eIF2) during dietary amino acid insufficiency reduces protein synthesis and alters gene expression via the integrated stress response (ISR).Objective: We explored whether a Met-restricted (MR) diet activates the ISR to reduce body fat and regulate protein balance.Methods: Male and female mice aged 3-6 mo with either whole-body deletion of general control nonderepressible 2 (Gcn2) or liver-specific deletion of protein kinase R-like endoplasmic reticulum kinase (Perk) alongside wild-type or floxed control mice were fed an obesogenic diet sufficient in Met (0...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28446631/combined-vitamin-b-12-and-balanced-protein-energy-supplementation-affect-homocysteine-remethylation-in-the-methionine-cycle-in-pregnant-south-indian-women-of-low-vitamin-b-12-status
#3
Sarita Devi, Arpita Mukhopadhyay, Pratibha Dwarkanath, Tinku Thomas, Julian Crasta, Annamma Thomas, C N Sheela, Jean W Hsu, Grace J Tang, Farook Jahoor, Anura V Kurpad
Background: Low-quality dietary protein intake and vitamin B-12 deficiency could interact to decrease methionine transmethylation and remethylation rates during pregnancy and may affect epigenetic modifications of the fetal genome.Objective: The objective of this randomized, partially open-labeled intervention trial was to examine the effect of supplemental high-quality protein and vitamin B-12 on third-trimester methionine kinetics in pregnant Indian women with a low vitamin B-12 status.Methods: Pregnant women with low serum vitamin B-12 concentrations (<200 pmol/L) were randomly assigned to 1 of 3 groups: the first group received balanced protein-energy supplementation of 500 mL milk/d plus a 10-μg vitamin B-12 tablet/d (M+B-12 group; n = 30), the second group received milk (500 mL/d) plus a placebo tablet (M+P group; n = 30), and the third group received a placebo tablet alone (P group; n = 33)...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28446630/texture-based-differences-in-eating-rate-reduce-the-impact-of-increased-energy-density-and-large-portions-on-meal-size-in-adults
#4
Keri McCrickerd, Charlotte Mh Lim, Claudia Leong, Edwin M Chia, Ciaran G Forde
Background: Large portions and high dietary energy density promote overconsumption at meal times. This could be reduced by eating slowly.Objective: Two studies investigated whether texture-based reductions in eating rate and oral processing moderate consumption at breakfast in combination with variations in energy density and portion size.Methods: Adults attended 4 breakfast sessions (2 × 2 repeated-measures design) to consume rice porridge, combining a 45% reduction in eating rate [thin porridge (140 g/min) compared with thick porridge (77 g/min)] with a 77% increase in energy density (0...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28446629/vitamin-d-receptor-and-megalin-gene-polymorphisms-are-associated-with-longitudinal-cognitive-change-among-african-american-urban-adults
#5
May A Beydoun, Salman M Tajuddin, Greg A Dore, Jose-Atilio Canas, Hind A Beydoun, Michele K Evans, Alan B Zonderman
Background: The link between longitudinal cognitive change and polymorphisms in the vitamin D receptor (VDR) and MEGALIN [or LDL receptor-related protein 2 (LRP2)] genes remains unclear, particularly among African-American (AA) adults.Objectives: We aimed to evaluate associations of single nucleotide polymorphisms (SNPs) for VDR [rs11568820 (Cdx-2:T/C), rs1544410 (BsmI:G/A), rs7975232 (ApaI:A/C), rs731236 (TaqI:G/A)] and LRP2 [rs3755166:G/A,rs2075252:C/T, rs2228171:C/T] genes with longitudinal cognitive performance change in various domains of cognition...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28446628/plasma-ferritin-and-hepcidin-are-lower-at-4-months-postpartum-among-women-with-elevated-c-reactive-protein-or-%C3%AE-1-acid-glycoprotein
#6
Josh M Jorgensen, Zhenyu Yang, Bo Lönnerdal, Caroline J Chantry, Kathryn G Dewey
Background: Ferritin and hepcidin are markers of iron status that typically increase during inflammation or infection. The postpartum period is a physiologically unique life stage in which the relations between these proteins and other markers of inflammation have not been extensively studied.Objective: We aimed to determine whether 2 markers of inflammation [high-sensitivity C-reactive protein (CRP) and α1-acid glycoprotein (AGP)] were associated with ferritin or hepcidin in postpartum women in California...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28446627/silicon-alleviates-nonalcoholic-steatohepatitis-by-reducing-apoptosis-in-aged-wistar-rats-fed-a-high-saturated-fat-high-cholesterol-diet
#7
Alba Garcimartín, M Elvira López-Oliva, Jorge A Sántos-López, Rosa A García-Fernández, Adrián Macho-González, Sara Bastida, Juana Benedí, Francisco J Sánchez-Muniz
Background: Lipoapoptosis has been identified as a key event in the progression of nonalcoholic fatty liver disease (NAFLD), and hence, antiapoptotic agents have been recommended as a possible effective treatment for nonalcoholic steatohepatitis (NASH). Silicon, included in meat as a functional ingredient, improves lipoprotein profiles and liver antioxidant defenses in aged rats fed a high-saturated fat, high-cholesterol diet (HSHCD). However, to our knowledge, the antiapoptotic effect of this potential functional meat on the liver has never been tested...
April 26, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424262/magnesium-reduces-hepatic-lipid-accumulation-in-yellow-catfish-pelteobagrus-fulvidraco-and-modulates-lipogenesis-and-lipolysis-via-ppara-jak-stat-and-ampk-pathways-in-hepatocytes
#8
Chuan-Chuan Wei, Kun Wu, Yan Gao, Li-Han Zhang, Dan-Dan Li, Zhi Luo
Background: Magnesium influences hepatic lipid deposition in vertebrates, but the underlying mechanism is unknown.Objective: We used yellow catfish and their isolated hepatocytes to test the hypothesis that magnesium influences lipid deposition by modulating lipogenesis and lipolysis.Methods: Juvenile yellow catfish (mean ± SEM weight: 3.43 ± 0.02 g, 3 mo old, mixed sex) were fed a 0.14- (low), 0.87- (intermediate) or 2.11- (high) g Mg/kg diet for 56 d. Primary hepatocytes were incubated for 48 h in control or MgSO4-containing medium with or without 2-h pretreatment with an inhibitor (AG490, GW6471, or Compound C)...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424261/zinc-absorption-from-milk-is-affected-by-dilution-but-not-by-thermal-processing-and-milk-enhances-absorption-of-zinc-from-high-phytate-rice-in-young-dutch-women
#9
Elise F Talsma, Diego Moretti, Sou Chheng Ly, Renske Dekkers, Ellen Ghm van den Heuvel, Aditia Fitri, Esther Boelsma, Tjeerd Jan Stomph, Christophe Zeder, Alida Melse-Boonstra
Background: Milk has been suggested to increase zinc absorption. The effect of processing and the ability of milk to enhance zinc absorption from other foods has not been measured directly in humans.Objective: We aimed to assess zinc absorption from 1) milk undergoing various processing and preparatory steps and 2) from intrinsically labeled high-phytate rice consumed with milk or water.Methods: Two randomized crossover studies were conducted in healthy young women [age:18-25 y; body mass index (in kg/m(2)): 20-25]: 1) a milk study (n = 19) comparing the consumption of 800 mL full-fat ultra-high temperature (UHT) milk [heat-treated milk (HTM)], full-fat UHT milk diluted 1:1 with water [heat-treated milk and water (MW)], water, or unprocessed (raw) milk (UM), each extrinsically labeled with (67)Zn, and 2) a rice study (n = 18) comparing the consumption of 90 g intrinsically (67)Zn-labeled rice with 600 mL of water [rice and water (RW)] or full-fat UHT milk [rice and milk (RM)]...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424260/upregulation-of-zinc-absorption-matches-increases-in-physiologic-requirements-for-zinc-in-women-consuming-high-or-moderate-phytate-diets-during-late-pregnancy-and-early-lactation
#10
K Michael Hambidge, Leland V Miller, Manolo Mazariegos, Jamie Westcott, Noel W Solomons, Victor Raboy, Jennifer F Kemp, Abhik Das, Norman Goco, Ty Hartwell, Linda Wright, Nancy F Krebs
Background: Estimated physiologic requirements (PRs) for zinc increase in late pregnancy and early lactation, but the effect on dietary zinc requirements is uncertain.Objective: The aim of this study was to determine changes in daily fractional absorbed zinc and total absorbed zinc (TAZ) from ad libitum diets of differing phytate contents in relation to physiologic zinc requirements during pregnancy and lactation.Methods: This was a prospective observational study of zinc absorption at 8 (phase 1) and 34 (phase 2) wk of gestation and 2 (phase 3) and 6 (phase 4) mo of lactation...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424259/maternal-vitamin-d-insufficiency-early-in-pregnancy-is-associated-with-increased-risk-of-preterm-birth-in-ethnic-minority-women-in-canada
#11
Negar Tabatabaei, Nathalie Auger, Catherine M Herba, Shuqin Wei, Catherine Allard, Guy D Fink, William D Fraser
Background: Maternal vitamin D insufficiency (plasma 25-hydroxyvitamin D [25(OH)D] <75 nmol/L) may play a role in ethnic disparities in rates of preterm and spontaneous preterm births.Objective: We explored the relation between maternal plasma 25(OH)D concentration in the first trimester (8-14 wk of gestation) and the risk of preterm and spontaneous preterm births (<37 wk of gestation) by ethnicity.Methods: We designed a case-control study that included 120 cases of preterm birth (<37 wk of gestation) and 360 term controls (≥37 wk of gestation) of singleton pregnancies from the 3D cohort, a multicenter study in 2456 pregnant women in Quebec, Canada...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424258/serum-hepcidin-concentrations-decline-during-pregnancy-and-may-identify-iron-deficiency-analysis-of-a-longitudinal-pregnancy-cohort-in-the-gambia
#12
Amat Bah, Sant-Rayn Pasricha, Momodou W Jallow, Ebrima A Sise, Rita Wegmuller, Andrew E Armitage, Hal Drakesmith, Sophie E Moore, Andrew M Prentice
Background: Antenatal anemia is a risk factor for adverse maternal and fetal outcomes and is prevalent in sub-Saharan Africa. Less than half of antenatal anemia is considered responsive to iron; identifying women in need of iron may help target interventions. Iron absorption is governed by the iron-regulatory hormone hepcidin.Objective: We sought to characterize changes in hepcidin and its associations with indexes of iron stores, erythropoiesis, and inflammation at weeks 14, 20, and 30 of gestation and to assess hepcidin's diagnostic potential as an index of iron deficiency...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424257/an-animal-source-food-supplement-increases-micronutrient-intakes-and-iron-status-among-reproductive-age-women-in-rural-vietnam
#13
Andrew G Hall, Tu Ngu, Hoang T Nga, Phi N Quyen, Pham T Hong Anh, Janet C King
Background: Few studies have examined the impact of local animal-source foods (ASFs) on the nutritional status of reproductive-age women in developing countries.Objective: We hypothesized that a midmorning snack of local ASF for 6 mo would reduce dietary micronutrient deficiencies [usual intake less than the estimated average requirement (EAR)] and improve blood biomarkers of iron, zinc, and vitamins A and B-12 status among nonpregnant, reproductive-age women in rural Vietnam.Methods: One hundred seventeen women, 18-30 y old, were randomly assigned to receive either an ASF (mean: 144 kcal, 8...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424256/dietary-patterns-and-type-2-diabetes-a-systematic-literature-review-and-meta-analysis-of-prospective-studies
#14
Franziska Jannasch, Janine Kröger, Matthias B Schulze
Background: Different methodologic approaches for constructing dietary patterns and differences in their composition limit conclusions on healthful patterns for diabetes prevention.Objective: We summarized evidence from prospective studies that examined associations of dietary patterns with type 2 diabetes by considering different methodologic approaches.Methods: The literature search (MEDLINE and Web of Science) identified prospective studies (cohorts or trials) that associated dietary patterns with diabetes incidence in nondiabetic and apparently healthy participants...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424255/analysis-of-milk-from-mothers-who-delivered-prematurely-reveals-few-changes-in-proteases-and-protease-inhibitors-across-gestational-age-at-birth-and-infant-postnatal-age
#15
Veronique Demers-Mathieu, Søren Drud Nielsen, Mark A Underwood, Robyn Borghese, David C Dallas
Background: Peptidomics research has demonstrated that protease activity is higher in breast milk from preterm-delivering mothers than from term-delivering mothers. However, to our knowledge, the effect of the degree of prematurity and postnatal age on proteases and protease inhibitors in human milk remains unknown.Objective: We aimed to determine the change of proteases and protease inhibitors in milk from mothers who delivered prematurely across gestational age (GA) and postnatal age.Methods: Milk samples were collected from 18 mothers aged 26-40 y who delivered preterm infants and who lacked mastitis...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28404840/household-coverage-with-adequately-iodized-salt-varies-greatly-between-countries-and-by-residence-type-and-socioeconomic-status-within-countries-results-from-10-national-coverage-surveys
#16
REVIEW
Jacky M Knowles, Greg S Garrett, Jonathan Gorstein, Roland Kupka, Ruth Situma, Kapil Yadav, Rizwan Yusufali, Chandrakant Pandav, Grant J Aaron
Background: Household coverage with iodized salt was assessed in 10 countries that implemented Universal Salt Iodization (USI).Objective: The objective of this paper was to summarize household coverage data for iodized salt, including the relation between coverage and residence type and socioeconomic status (SES).Methods: A review was conducted of results from cross-sectional multistage household cluster surveys with the use of stratified probability proportional to size design in Bangladesh, Ethiopia, Ghana, India, Indonesia, Niger, the Philippines, Senegal, Tanzania, and Uganda...
April 12, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28404839/coverage-of-nutrition-interventions-intended-for-infants-and-young-children-varies-greatly-across-programs-results-from-coverage-surveys-in-5-countries
#17
REVIEW
Magali Leyvraz, Grant J Aaron, Alia Poonawala, Marti J van Liere, Dominic Schofield, Mark Myatt, Lynnette M Neufeld
Background: The efficacy of a number of interventions that include fortified complementary foods (FCFs) or other products to improve infant and young child feeding (IYCF) is well established. Programs that provide such products free or at a subsidized price are implemented in many countries around the world. Demonstrating the impact at scale of these programs has been challenging, and rigorous information on coverage and utilization is lacking.Objective: The objective of this article is to review key findings from 11 coverage surveys of IYCF programs distributing or selling FCFs or micronutrient powders in 5 countries...
April 12, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28404838/assessing-coverage-of-population-based-and-targeted-fortification-programs-with-the-use-of-the-fortification-assessment-coverage-toolkit-fact-background-toolkit-development-and-supplement-overview
#18
REVIEW
Valerie M Friesen, Grant J Aaron, Mark Myatt, Lynnette M Neufeld
Food fortification is a widely used approach to increase micronutrient intake in the diet. High coverage is essential for achieving impact. Data on coverage is limited in many countries, and tools to assess coverage of fortification programs have not been standardized. In 2013, the Global Alliance for Improved Nutrition developed the Fortification Assessment Coverage Toolkit (FACT) to carry out coverage assessments in both population-based (i.e., staple foods and/or condiments) and targeted (e.g., infant and young child) fortification programs...
April 12, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28404837/preserving-mother-nature-s-best-food-for-preterm-infants
#19
Douglas G Burrin
No abstract text is available yet for this article.
April 12, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28404836/coverage-of-large-scale-food-fortification-of-edible-oil-wheat-flour-and-maize-flour-varies-greatly-by-vehicle-and-country-but-is-consistently-lower-among-the-most-vulnerable-results-from-coverage-surveys-in-8-countries
#20
REVIEW
Grant J Aaron, Valerie M Friesen, Svenja Jungjohann, Greg S Garrett, Lynnette M Neufeld, Mark Myatt
Background: Large-scale food fortification (LSFF) of commonly consumed food vehicles is widely implemented in low- and middle-income countries. Many programs have monitoring information gaps and most countries fail to assess program coverage.Objective: The aim of this work was to present LSFF coverage survey findings (overall and in vulnerable populations) from 18 programs (7 wheat flour, 4 maize flour, and 7 edible oil programs) conducted in 8 countries between 2013 and 2015.Methods: A Fortification Assessment Coverage Toolkit (FACT) was developed to standardize the assessments...
April 12, 2017: Journal of Nutrition
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