Publications by authors named "Nancy M DiMarco"

The aim of this study was to identify the effects of menopausal and body composition statuses on measures of total and regional body composition and dyslipidemia in women. Sedentary, non-smoking women (N = 212), not currently treated for dyslipidemia were grouped based on 2 categories: (1) menstrual status: premenopausal or postmenopausal and (2) body composition status: normal weight (NW; BMI < 25 kg/m² and body fat (BF) < 36%), normal weight obese (NWO; BMI < 25 kg/m² and BF > 36%), or obese (BMI > 25 kg/m² and BF > 36%), to determine differences in total and regional body composition and measures of lipid and lipoprotein-cholesterol concentrations. Overall, a greater prevalence of NWO was observed in postmenopausal versus premenopausal women.

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Iodine, an essential micronutrient, is required to produce thyroid hormones. Iodine deficiency disorders (IDD) comprise a range of adverse maternal and fetal outcomes, with the most significant irreversible effect resulting from neurodevelopmental deficits in fetal brain caused by deficient iodine status during early pregnancy. The objective of this scoping review was to summarize the studies that assessed iodine status of women of reproductive age in the USA.

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Background: Casein protein consumed before sleep has been suggested to offer an overnight supply of exogenous amino acids for anabolic processes. The purpose of this study was to compare supplemental casein consumed earlier in the day (DayTime, DT) versus shortly before bed (NightTime, NT) on body composition, strength, and muscle hypertrophy in response to supervised resistance training.

Methods: Thirteen males participated in a 10-week exercise and dietary intervention while receiving 35 g casein daily.

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Duplanty, AA, Levitt, DE, Hill, DW, McFarlin, BK, DiMarco, NM, and Vingren, JL. Resistance training is associated with higher bone mineral density among young adult male distance runners independent of physiological factors. J Strength Cond Res 32(6): 1594-1600, 2018-Low bone mineral density (BMD) in male distance runners is common and could be modulated by a host of biomarkers involved in the dynamic balance of bone tissue.

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Assessing the effects of grapes and grape powder extracted polyphenols on lipogenesis and glucose uptake in adipocytes may clarify the risk/benefit of recommending them to individuals with obesity and insulin resistance. We investigated the effect of grape powder extracted polyphenols (GPEP) on intracellular fat accumulation and glucose uptake during differentiation of 3T3-F442A preadipocytes. Total polyphenols were extracted and measured based on gallic acid equivalents (GAE).

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Increasing evidence suggests that the loss of functional stem cells may be important in the aging process. Our experiments were originally aimed at testing the idea that, in the specific case of age-related osteoporosis, declining function of osteogenic precursor cells might be at least partially responsible. To test this, aging female mice were transplanted with mesenchymal stem cells from aged or young male donors.

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It is the position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine that physical activity, athletic performance, and recovery from exercise are enhanced by optimal nutrition. These organizations recommend appropriate selection of foods and fluids, timing of intake, and supplement choices for optimal health and exercise performance. This updated position paper couples a rigorous, systematic, evidence-based analysis of nutrition and performance-specific literature with current scientific data related to energy needs, assessment of body composition, strategies for weight change, nutrient and fluid needs, special nutrient needs during training and competition, the use of supplements and ergogenic aids, nutrition recommendations for vegetarian athletes, and the roles and responsibilities of sports dietitians.

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This study was performed to evaluate the effect of a diet rich in taurine (2.0 g/100 g) on bone metabolism in ovariectomized (OVX) rats. All rats were fed deionized water during the experimental period.

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Objective: The purpose of the current study was to verify the occurrence of body size stigmatization in Hispanic preschoolers who are "at risk" for obesity and to examine potential predictors of body size stigmatization.

Methods And Procedures: At a local preschool, 70 lower-socioeconomic, Hispanic caregivers and their preschoolers participated. Preschoolers completed an attribution task including positive and negative adjectives to assess body size stigmatization.

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Objective: To determine the impact of written intervention materials on child feeding practices of mothers and on physical activity behaviors of preschoolers.

Design: Mothers were divided into 3 groups: newsletter (n = 30), booklet (n = 31), and control (n = 31). Questionnaires were completed before and after a 12-week intervention.

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The exercising woman with nutritional deficits and related menstrual irregularities is at risk of compromising long-term bone health, i.e., the female athlete triad.

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Childhood overweight among lower socioeconomic, Hispanic children has increased. Interviews regarding health status and play patterns were conducted with 76 predominantly Hispanic mothers of overweight toddlers and preschoolers served by Women, Infants, and Children (WIC). Most participants believed their child was healthy and half were unconcerned about their child's weight.

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Background: Elevated dietary fat increases oxidative metabolism and has been linked to increased oxidative stress, while exercise training may augment antioxidant capacity. Most studies examining oxidative stress in skeletal muscle employ extremely high levels of dietary fat and/or intense exercise training that may not adequately model human diet and activity patterns.

Aim: The purpose of this study was to examine the interaction between an elevated (40% of calories) monounsaturated fat diet and a moderate-intensity exercise program similar to recommended human exercise prescriptions, on skeletal muscle oxidative stress and antioxidant defenses.

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Purpose: To examine the effects of moderate intensity chronic exercise on tumor necrosis factor-alpha (TNFalpha) and inducible nitric oxide synthase (iNOS) responses to endotoxin in female Sprague-Dawley rats.

Methods: Rats were divided into two groups, exercise (n=17) and sedentary (n=24). Exercise (Ex) rats completed 12 weeks of motorized treadmill running 3 days/week for 15-25 min at 22-25 m/min, while sedentary (Sed) rats remained in their cages.

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