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Molecular, Genetic, and Biochemical Nutrition Commons™
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- Department of Nutrition and Health Sciences: Faculty Publications (29)
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Articles 31 - 47 of 47
Full-Text Articles in Molecular, Genetic, and Biochemical Nutrition
Food Insecurity And Housing Instability In Vulnerable Families, Christian King
Food Insecurity And Housing Instability In Vulnerable Families, Christian King
Department of Nutrition and Health Sciences: Faculty Publications
Reducing the prevalence of household food insecurity has been a long-standing objective of the federal government. Previous research has found many negative consequences of food insecurity for families and households but has not examined its relationship with housing instability. Using longitudinal data from the Fragile Families and Child Wellbeing Study, difference-in-difference models show that food insecurity is associated with housing instability. The association remains statistically significant after accounting for potential selection and unobserved heterogeneity using propensity score matching and excluding households that experienced prior housing instability from the sample. Examining potential mediating factors, I find that material hardship explains about …
Soft Drinks Consumption And Child Behaviour Problems: The Role Of Food Insecurity And Sleep Patterns, Christian King
Soft Drinks Consumption And Child Behaviour Problems: The Role Of Food Insecurity And Sleep Patterns, Christian King
Department of Nutrition and Health Sciences: Faculty Publications
Objective: To examine whether the association between soft drinks consumption and child behaviour problems differs by food security status and sleep patterns in young children.
Design: Cross-sectional observational data from the Fragile Families and Child Wellbeing Study (FFCWS), which collected information on food insecurity, soft drinks consumption, sleep patterns and child behaviour problems. Bivariate and multivariate ordinary least-squares regression analyses predicting child behaviour problems and accounting for socio-economic factors and household characteristics were performed.
Setting: Twenty urban cities in the USA with a population of 200 000 or more.
Subjects: Parental interviews of 2829 children who were about 5 years …
Effect Of Sex On Torque, Recovery, Emg, And Mmg Responses To Fatigue, E.C. Hill, Terry J. Housh, C. M. Smith, Kristen C. Cochrane, N.D.M. Jenkins, Joel T. Cramer, Richard J. Schmidt, G. O. Johnson
Effect Of Sex On Torque, Recovery, Emg, And Mmg Responses To Fatigue, E.C. Hill, Terry J. Housh, C. M. Smith, Kristen C. Cochrane, N.D.M. Jenkins, Joel T. Cramer, Richard J. Schmidt, G. O. Johnson
Department of Nutrition and Health Sciences: Faculty Publications
The purpose of the present investigation was to examine the effect of sex on maximal voluntary isometric contraction (MVIC) torque and the EMG and MMG responses as a result of fatiguing, intermittent, submaximal (65% of MVIC), isometric elbow flexion muscle contractions. Methods: Eighteen men and women performed MVIC trials before (pretest), after (posttest), and 5-min after (5-min recovery) performing 50 intermittent, submaximal isometric muscle contractions. Surface electromyographic (EMG) and mechanomyographic (MMG) signals were simultaneously recorded from the biceps brachii muscle. Results: As a result of the fatiguing workbout torque decreased similarly from pretest to posttest for both the men (24.0%) …
Effects Of Fatiguing Constant Versus Alternating Intensity Intermittent Isometric Muscle Actions On Maximal Torque And Neuromuscular Responses, C. M. Smith, Terry J. Housh, E.C. Hill, Kristen C. Cochrane, N.D.M. Jenkins, Richard J. Schmidt, G. O. Johnson
Effects Of Fatiguing Constant Versus Alternating Intensity Intermittent Isometric Muscle Actions On Maximal Torque And Neuromuscular Responses, C. M. Smith, Terry J. Housh, E.C. Hill, Kristen C. Cochrane, N.D.M. Jenkins, Richard J. Schmidt, G. O. Johnson
Department of Nutrition and Health Sciences: Faculty Publications
Objective: To determine the effects of constant versus alternating applications of torque during fatiguing, intermittent isometric muscle actions of the leg extensors on maximal voluntary isometric contraction (MVIC) torque and neuromuscular responses. Methods: Sixteen subjects performed two protocols, each consisting of 50 intermittent isometric muscle actions of the leg extensors with equal average load at a constant 60% MVIC or alternating 40 then 80% (40/80%) MVIC with a work-to-rest ratio of 6-s on and 2-s off. MVIC torque as well as electromyographic signals from the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) and mechanomyographic signals from the …
Combined Iron Deficiency And Low Aerobic Fitness Doubly Burden Academic Performance Among Women Attending University, Samuel P. Scott, Mary Jane Desouza, Karsten Koehler, Laura E. Murray-Kolb
Combined Iron Deficiency And Low Aerobic Fitness Doubly Burden Academic Performance Among Women Attending University, Samuel P. Scott, Mary Jane Desouza, Karsten Koehler, Laura E. Murray-Kolb
Department of Nutrition and Health Sciences: Faculty Publications
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.
Methods: Women (n = 105) aged 18–35 y were recruited for this cross-sectional study. Data were obtained for iron biomarkers, peak oxygen …
Low Resting Metabolic Rate In Exercise-Associated Amenorrhea Is Not Due To A Reduced Proportion Of Highly Active Metabolic Tissue Compartments, Karsten Koehler, Nancy I. Williams, Rebecca J. Mallinson, Emily A. Southmayd, Heather C.M. Allaway, Mary Jane De Souza
Low Resting Metabolic Rate In Exercise-Associated Amenorrhea Is Not Due To A Reduced Proportion Of Highly Active Metabolic Tissue Compartments, Karsten Koehler, Nancy I. Williams, Rebecca J. Mallinson, Emily A. Southmayd, Heather C.M. Allaway, Mary Jane De Souza
Department of Nutrition and Health Sciences: Faculty Publications
Exercising women with menstrual disturbances frequently display a low resting metabolic rate (RMR) when RMR is expressed relative to body size or lean mass. However, normalizing RMR for body size or lean mass does not account for potential differences in the size of tissue compartments with varying metabolic activities. To explore whether the apparent RMR suppression in women with exercise-associated amenorrhea is a consequence of a lower proportion of highly active metabolic tissue compartments or the result of metabolic adaptations related to energy conservation at the tissue level, RMR and metabolic tissue compartments were compared among exercising women with amenorrhea …
Low Energy Availability In Exercising Men Is Associated With Reduced Leptin And Insulin But Not With Changes In Other Metabolic Hormones, Karsten Koehler, Neele R. Hoerner, Jenna C. Gibbs, Christoph Zinner, Hans Braun, Mary Jane De Souza, Wilhelm Schaenzer
Low Energy Availability In Exercising Men Is Associated With Reduced Leptin And Insulin But Not With Changes In Other Metabolic Hormones, Karsten Koehler, Neele R. Hoerner, Jenna C. Gibbs, Christoph Zinner, Hans Braun, Mary Jane De Souza, Wilhelm Schaenzer
Department of Nutrition and Health Sciences: Faculty Publications
Low energy availability, defined as low caloric intake relative to exercise energy expenditure, has been linked to endocrine alterations frequently observed in chronically energy-deficient exercising women. Our goal was to determine the endocrine effects of low energy availability in exercising men. Six exercising men (VO2peak : 49.3 ± 2.4 ml · kg−1 · min−1) underwent two conditions of low energy availability (15 kcal · kg−1 fat-free mass [FFM] · day−1) and two energy-balanced conditions (40 kcal · kg−1 FFM · day−1) in randomized order. During one low energy availability and …
A Qualitative Phenomenological Exploration Of Teachers’ Experience With Nutrition Education, Elisha M. Hall, Weiwen Chai, Julie A. Albrecht
A Qualitative Phenomenological Exploration Of Teachers’ Experience With Nutrition Education, Elisha M. Hall, Weiwen Chai, Julie A. Albrecht
Department of Nutrition and Health Sciences: Faculty Publications
Background:
Nutrition education delivered by classroom teachers has become a popular intervention designed to combat childhood obesity. However, few qualitative studies have explored nutrition education with teachers.
Purpose:
The purpose of this study was to explore how elementary teachers describe their experience with nutrition education.
Methods:
A qualitative phenomenological approach was used. Semistructured interviews, observations, and document analysis were conducted with 10 teachers who delivered nutrition education in their classrooms. Inductive coding was used to determine invariant constituents, reduce constituents to categories, and cluster categories into themes. Reliability and validity were accomplished through intercoder agreement, audio recording, triangulation, bracketing, and …
The Expression Of Platelet-Activating Factor Is Induced By Low Extracellular Mg2+ In Aortic, Cerebral And Neonatal Coronary Vascular Smooth Muscle; Cross Talk With Ceramide Production, Nf–Kb And Proto-Oncogenes: Possible Links To Atherogenesis And Sudden Cardiac Death In Children And Infants, And Aging: Hypothesis, Review And Viewpoint, Burton M. Altura, Wenyan Li, Aimin Zhang, Tao Zheng, Nilank C. Shah, Gatha J. Shah, Bella T. Altura
The Expression Of Platelet-Activating Factor Is Induced By Low Extracellular Mg2+ In Aortic, Cerebral And Neonatal Coronary Vascular Smooth Muscle; Cross Talk With Ceramide Production, Nf–Kb And Proto-Oncogenes: Possible Links To Atherogenesis And Sudden Cardiac Death In Children And Infants, And Aging: Hypothesis, Review And Viewpoint, Burton M. Altura, Wenyan Li, Aimin Zhang, Tao Zheng, Nilank C. Shah, Gatha J. Shah, Bella T. Altura
The School of Health Sciences Publications and Research
An attempt is made, herein, to reconcile, and integrate, various phenomena associated with magnesium deficiency (MgD) in cardiovascular health, disease, and aging as well as reasons for the high incidence of sudden cardiac death in infants and young adults. With new experiments, we demonstrate, for the first time, that very low concentrations of platelet-activating factor (PAF), when added to primary cultured cerebral, neonatal coronary, and aortic vascular smooth muscle (VSM) cells (from three different mammals) promote rapid rises in free intracellular Ca2+ ions and a significant, concomitant reduction in free intracellular Mg2+ ions; these actions of PAF being curtailed with …
Sudden Cardiac Death In Infants, Children And Young Adults: Possible Roles Of Dietary Magnesium Intake And Generation Of Platelet-Activating Factor In Coronary Arteries, Burton M. Altura, Wenyan Li, Aimin Zhang, Tao Zheng, Nilank C. Shah, Gatha J. Shah, Bella T. Altura
Sudden Cardiac Death In Infants, Children And Young Adults: Possible Roles Of Dietary Magnesium Intake And Generation Of Platelet-Activating Factor In Coronary Arteries, Burton M. Altura, Wenyan Li, Aimin Zhang, Tao Zheng, Nilank C. Shah, Gatha J. Shah, Bella T. Altura
The School of Health Sciences Publications and Research
Magnesium (Mg) is a co-factor for more than 500 enzymes, and is the second most abundant intracellular cation after potassium. It is vital in numerous physiological, cellular and biochemical functions and systems necessary for life. Approximately 35 years ago, our laboratory suggested that a progressive, dietary deficiency and/or metabolic induced loss of Mg from the body, beginning early in life, particularly during development of the coronary arteries, could lead to coronary arterial vasospasm, ischemic heart disease, and sudden-cardiac death (SCD). Herein, we review evidence for a brand-new, novel hypothesis which combines knowledge suggesting a combined role for hypomagnesemia and platelet-activating …
Genotoxic Effects Of Magnesium Deficiency In The Cardiovascular System And Their Relationships To Cardiovascular Diseases And Atherogenesis, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Bella T. Altura
Genotoxic Effects Of Magnesium Deficiency In The Cardiovascular System And Their Relationships To Cardiovascular Diseases And Atherogenesis, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Bella T. Altura
The School of Health Sciences Publications and Research
The authors present evidence for a novel, new hypothesis whereby magnesium deficiency (MgD) acts as a genotoxic agent which probably causes numerous, hertofore, unrecognized consequences, even over a short-term, on the physiological, molecular and biochemical machinery of cardiovascular tissues and cells. The end result of these genotoxic effects of MgD probably plays important roles in the etiology and generation of diverse cardiovascular diseases, atherosclerosis, inflammation, and strokes via alterations in the epigenome of cardiovascular tissues and cells. The importance of adequate water-borne and dietary levels of Mg is emphasized.
Magnesium Deficiency Results In Oxidation And Fragmentation Of Dna, Down Regulation Of Telomerase Activity, And Ceramide Release In Cardiovascular Tissues And Cells: Potential Relationship To Atherogenesis, Cardiovascular Diseases And Aging, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Jose Luis Perez-Albela, Bella T. Altura
Magnesium Deficiency Results In Oxidation And Fragmentation Of Dna, Down Regulation Of Telomerase Activity, And Ceramide Release In Cardiovascular Tissues And Cells: Potential Relationship To Atherogenesis, Cardiovascular Diseases And Aging, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Jose Luis Perez-Albela, Bella T. Altura
The School of Health Sciences Publications and Research
The authors discuss the potential relationship between magnesium, cardiovascular diseases, and aging.
Insights Into The Possible Mechanisms By Which Platelet-Activating Factor And Paf-Receptors Function In Vascular Smooth Muscle In Magnesium Deficiency And Vascular Remodeling: Possible Links To Atherogenesis, Hypertension And Cardiac Failure, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Jose Luis Perez-Albela, Bella T. Altura
Insights Into The Possible Mechanisms By Which Platelet-Activating Factor And Paf-Receptors Function In Vascular Smooth Muscle In Magnesium Deficiency And Vascular Remodeling: Possible Links To Atherogenesis, Hypertension And Cardiac Failure, Burton M. Altura, Nilank C. Shah, Gatha J. Shah, Jose Luis Perez-Albela, Bella T. Altura
The School of Health Sciences Publications and Research
The authors discuss different studies concerning the relationship between platelet-activating factor (PAF) and PAF-receptors with atherosclerosis and hypertension.
The Apoa5 Rs662799 Polymorphism Is Associated With Dyslipidemia And The Severity Of Coronary Heart Disease In Chinese Women, Yanmei Wang, Zhan Lu, Jingxiao Zhang, Yang Yang, Jing Shen, Xiaoming Zhang, Yongyan Song
The Apoa5 Rs662799 Polymorphism Is Associated With Dyslipidemia And The Severity Of Coronary Heart Disease In Chinese Women, Yanmei Wang, Zhan Lu, Jingxiao Zhang, Yang Yang, Jing Shen, Xiaoming Zhang, Yongyan Song
Department of Nutrition and Health Sciences: Faculty Publications
Background: The APOA5 rs662799 polymorphism has been widely reported regarding its associations with the plasma lipid levels and the occurrence of coronary heart disease (CHD), whereas its relationship with the severity of CHD has not yet been explored.
Methods: Four hundred and seventy-eight angiografically defined subjects (325 CHD patients and 153 CHD-free controls) were enrolled in this study. The rs662799 polymorphism was genotyped, and the fasting lipid data were collected for all participants. The severity of CHD was evaluated for the CHD patients by using Gensini scores.
Results: The variant C allele of the rs662799 polymorphism was associated with lower …
Nutrigenomic Functions Of Ppars In Obesogenic Environments, Soonkyu Chung, Young Jun Kim, Soo Jin Yang, Yunkyoung Lee, Myoungsook Lee
Nutrigenomic Functions Of Ppars In Obesogenic Environments, Soonkyu Chung, Young Jun Kim, Soo Jin Yang, Yunkyoung Lee, Myoungsook Lee
Department of Nutrition and Health Sciences: Faculty Publications
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors that mediate the effects of several nutrients or drugs through transcriptional regulation of their target genes in obesogenic environments.This review consists of three parts. First, we summarize current knowledge regarding the role of PPARs in governing the development of white and brown/beige adipocytes from uncommitted progenitor cells. Next, we discuss the interactions of dietary bioactive molecules, such as fatty acids and phytochemicals, with PPARs for the modulation of PPAR-dependent transcriptional activities and metabolic consequences. Lastly, the effects of PPAR polymorphism on obesity and metabolic outcomes are discussed. In this review, we aim …
Carbohydrate Intake In Form Of Gel Is Associated With Increased Gastrointestinal Distress But Not With Performance Differences Compared With Liquid Carbohydrate Ingestion During Simulated Long-Distance Triathlon, Mahdi Sareban, David Zügel, Karsten Koehler, Paul Hartveg, Martina Zügel, Uwe Schumann, Jürgen Michael Steinacker, Gunnar Treff
Carbohydrate Intake In Form Of Gel Is Associated With Increased Gastrointestinal Distress But Not With Performance Differences Compared With Liquid Carbohydrate Ingestion During Simulated Long-Distance Triathlon, Mahdi Sareban, David Zügel, Karsten Koehler, Paul Hartveg, Martina Zügel, Uwe Schumann, Jürgen Michael Steinacker, Gunnar Treff
Department of Nutrition and Health Sciences: Faculty Publications
The ingestion of exogenous carbohydrates (CHO) during prolonged endurance exercise, such as long-distance triathlon, is considered beneficial with regard to performance. However, little is known about whether this performance benefit differs among different forms of CHO administration. To this end, the purpose of our study was to determine the impact of CHO ingestion from a semisolid source (GEL) on measures of performance and gastrointestinal (GI) comfort compared with CHO ingestion from a liquid source (LIQ). Nine well-trained triathletes participated in this randomized crossover study. Each participant completed a 60-min swim, 180-min bike exercise, and a 60-min all-out run in a …
Food Labeling And Consumer Associations With Health, Safety, And Environment, Joanna K. Sax, Neal Doran
Food Labeling And Consumer Associations With Health, Safety, And Environment, Joanna K. Sax, Neal Doran
Faculty Scholarship
The food supply is complicated and consumers are increasingly calling for labeling on food to be more informative. In particular, consumers are asking for the labeling of genetically modified organisms (GMO) food based on health, safety and environmental concerns. At issue is whether the labels that are sought would accurately provide the information desired. The present study examined consumer (n = 181) perceptions of health, safety and the environment for foods labeled organic, natural, fat free or low fat, GMO, or non-GMO. Findings indicated that respondents consistently believed that foods labeled GMO are less healthy, safe and environmentally-friendly compared to …