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Journal of the American College of Nutrition

Macarena Valladares, Elizabeth Durán, Alexis Matheus, Samuel Durán-Agüero, Ana María Obregón, Rodrigo Ramírez-Tagle
OBJECTIVE: To determine the association between academic performance and eating behavior in university students in Chile. METHODS: A total of 680 college students, 409 (60%) women and 271 (40%) men, were randomly recruited and the mean age of the entire sample was 26. The Three-Factor Eating Questionnaire (TFEQ), which evaluates 3 dimensions of eating behavior-cognitive restriction (limiting own intake), uncontrolled eating (inclination to eat), and emotional eating (control of food intake in the context of negative emotions)-was used...
October 13, 2016: Journal of the American College of Nutrition
Fatemeh Javadi, Arman Ahmadzadeh, Shahryar Eghtesadi, Naheed Aryaeian, Mozhdeh Zabihiyeganeh, Abbas Rahimi Foroushani, Shima Jazayeri
OBJECTIVE: Previous studies have shown that the bioflavonoid quercetin has anti-inflammatory and anti-nociceptive effects. We investigated the effect of quercetin supplementation on inflammation, disease severity, and clinical symptoms in women with rheumatoid arthritis (RA). METHODS: The present study was a randomized, double-blind, placebo-controlled clinical trial in which 50 women with RA were allocated into a quercetin (500 mg/day) or placebo group for 8 weeks...
October 6, 2016: Journal of the American College of Nutrition
Christopher M Lockwood, Michael D Roberts, Vincent J Dalbo, Abbie E Smith-Ryan, Kristina L Kendall, Jordan R Moon, Jeffrey R Stout
OBJECTIVE: The objective of this study was to compare the chronic effects of different whey protein forms on body composition and performance when supplemented with resistance training. METHODS: Resistance-trained men (N = 56, 21.4 ± 0.4 years, 79.5 ± 1.0 kg) participated in an 8-week resistance training regimen (2 upper-body sessions and 2 lower-body sessions per week) and received one of 4 double-blinded treatments: 30 g/serving carbohydrate placebo (PLA) or 30 g/serving protein from either (a) 80% whey protein concentrate (WPC), (b) high-lactoferrin-containing WPC (WPC-L), or (c) extensively hydrolyzed WPC (WPH)...
October 6, 2016: Journal of the American College of Nutrition
Jelena J Vulić, Jasna M Čanadanović-Brunet, Gordana S Ćetković, Sonja M Djilas, Vesna T Tumbas Šaponjac, Sladjana S Stajčić
OBJECTIVE: Goji fruit extracts, methanol (MGE) and hexane (HGE), were subjected to evaluation as potential source of phenolic antioxidants and antiradical activity. METHODS: Some phenolic compounds (gallic, protocatechuic, vanillic, chlorogenic, coumaric, caffeic and ferulic acid and catechin and rutin), vitamin C and carotenoids were identified and quantified by HPLC. Antioxidant activity was tested by measuring ability to scavenge DPPH and hydroxyl radicals. Also, reducing power of goji fruit extracts was determined...
October 6, 2016: Journal of the American College of Nutrition
Dominik D Alexander, Paula E Miller, Ashley J Vargas, Douglas L Weed, Sarah S Cohen
The possible relationship between dietary cholesterol and cardiac outcomes has been scrutinized for decades. However, recent reviews of the literature have suggested that dietary cholesterol is not a nutrient of concern. Thus, we conducted a meta-analysis of egg intake (a significant contributor to dietary cholesterol) and risk of coronary heart disease (CHD) and stroke. A comprehensive literature search was conducted through August 2015 to identify prospective cohort studies that reported risk estimates for egg consumption in association with CHD or stroke...
October 6, 2016: Journal of the American College of Nutrition
Nicholas A Ratamess, Jill A Bush, Jie Kang, William J Kraemer, Sidney J Stohs, Vincenzo G Nocera, Megan D Leise, Keith B Diamond, Sara C Campbell, Howard B Miller, Avery D Faigenbaum
OBJECTIVE: The purpose of this study was to examine the metabolic, lipolytic, and cardiovascular responses to supplementation with p-synephrine alone and in combination with caffeine during resistance exercise (RE). METHODS: Twelve healthy men performed a control RE protocol (6 × 10 repetitions of squats) and were randomly assigned (using a double-blind crossover design with random protocol sequencing) to a supplement sequence: p-synephrine (S; 100 mg), p-synephrine + caffeine (SCF; 100 mg of p-synephrine plus 100 mg of caffeine), or a placebo (P)...
August 2, 2016: Journal of the American College of Nutrition
Juristo Fonolla-Joya, Rebeca Reyes-García, Antonia García-Martín, Eduardo López-Huertas, Manuel Muñoz-Torres
OBJECTIVE: Nutritional strategies can be effective for the prevention of menopause-related diseases, such as osteoporosis and cardiovascular disease. Our aim was to evaluate the effects of a dairy product enriched in polyunsaturated fatty acids, calcium, oleic acid, and vitamins on cardiovascular markers and bone metabolism in postmenopausal women with moderate cardiovascular risk. METHODS: One hundred seventeen healthy postmenopausal women (aged 45 ± 7.7 years) were allocated to 2 groups: the intervention group (IG; n = 63), who consumed 0...
August 2016: Journal of the American College of Nutrition
Carmen Diaz-Toledo, Anne C Kurilich, Roberta Re, Martin S J Wickham, Lucy C Chambers
OBJECTIVE: A variety of potato dishes are regularly consumed worldwide, but the satiety value of these foods is not well established. The primary objective of this study was to compare the satiating effects of 4 equi-energy meals containing different potato preparations with an equi-energy pasta control meal. METHODS: This study used a randomized crossover design to assess the impact of 4 equi-energy potato-based meals (fried French fries, baked potato, mashed potato, or potato wedges) on subjective satiety sensations (visual analogue scale [VAS] ratings) and subsequent energy intake (ad libitum meal [kcal]), compared to a control pasta-based meal...
August 2016: Journal of the American College of Nutrition
Fereashteh Bahmani, Maryam Tajadadi-Ebrahimi, Fariba Kolahdooz, Marjan Mazouchi, Haleh Hadaegh, Atefeh-Sadat Jamal, Navid Mazroii, Shiva Asemi, Zatolla Asemi
OBJECTIVES: To our knowledge, no reports are available indicating the effects of synbiotic bread consumption on nitric oxide (NO), biomarkers of oxidative stress, and liver enzymes among patients with type 2 diabetes mellitus (T2DM). This study was performed to determine the effects of the daily consumption of synbiotic bread on NO, biomarkers of oxidative stress, and liver enzymes in patients with T2DM. METHODS: This randomized, double-blind, placebo-controlled trial was performed among 81 patients with diabetes, aged 35-70 years old...
August 2016: Journal of the American College of Nutrition
Abbaszadeh Sepideh, Parastouei Karim, Afshari Hossein, Rostami Leila, Mahmoudi Hamdollah, Ghamarchehreh Mohammad E, Sepandi Mojtaba, Samadi Mohammad, Ghanizadeh Ghader, Alavian Seyed Moayed
OBJECTIVE: Nonalcoholic fatty liver disease (NAFLD) is a condition defined by exceeding triglycerides accumulation in the liver. The condition can develop into fibrosis, cirrhosis, and hepatocellular carcinoma. Considering the ever-increasing prevalence of NAFLD, the aim of the present study was to investigate the effects of probiotic supplementation on glycemic and inflammatory indices in patients with NAFLD. METHODS: This randomized clinical trial was conducted on 42 patients with NAFLD who had been referred to a gastroenterology clinic...
August 2016: Journal of the American College of Nutrition
William B Grant
UNLABELLED: Rates of Alzheimer's disease (AD) are rising worldwide. The most important risk factors seem to be linked to diet. For example, when Japan made the nutrition transition from the traditional Japanese diet to the Western diet, AD rates rose from 1% in 1985 to 7% in 2008. Foods protective against AD include fruits, vegetables, grains, low-fat dairy products, legumes, and fish, whereas risk factors include meat, sweets, and high-fat dairy products. The evidence comes from ecological and observational studies as well as investigations of the mechanisms whereby dietary factors affect risk...
July 2016: Journal of the American College of Nutrition
Michael D Lewis
Traumatic brain injury (TBI), with its diverse heterogeneity and prolonged secondary pathogenesis, remains a clinical challenge. Clinical studies thus far have failed to identify an effective treatment strategy when a combination of targets controlling aspects of neuroprotection, neuroinflammation, and neuroregeneration is needed. Omega-3 fatty acids (n-3FA) offer the advantage of this approach. Although further clinical trial research is needed, there is a growing body of strong preclinical evidence and clinical experience that suggests that benefits may be possible from aggressively adding substantial amounts of n-3FA to optimize the nutritional foundation of TBI, concussion, and postconcussion syndrome patients...
July 2016: Journal of the American College of Nutrition
Ingrid Kohlstadt, Joel Gittelsohn, Yu Fang
OBJECTIVE: NutriBee was the first clinical nutrition intervention designed to bring the Institute of Medicine recommendations for 20 hours of experiential nutrition-themed learning to grades 4-7 into club and camp settings. We piloted NutriBee to assess acceptability and impact among early adolescents in diverse and disadvantaged communities in order to evaluate its future potential as a group medical nutrition intervention. METHODS: Nine communities across Guam, Maryland, Michigan, and New Mexico representing South Pacific Island, American Indian, urban African American, recently immigrated Hispanic, and rural Caucasian ethnic groups piloted NutriBee in nonclinical settings (clubs, schools, camps)...
July 2016: Journal of the American College of Nutrition
Anna Zasowska-Nowak, Piotr J Nowak, Piotr Bialasiewicz, Anna Prymont-Przyminska, Anna Zwolinska, Agata Sarniak, Anna Wlodarczyk, Jaroslaw Markowski, Krzysztof P Rutkowski, Dariusz Nowak
OBJECTIVE: Strawberries can improve oxidants-antioxidants balance and reduce some cardiovascular risk factors in obese subjects. Paraoxonase-1 (PON-1) is a high-density lipoprotein-associated enzyme with antioxidant properties that can protect from coronary artery disease in humans. We examined the effect of strawberry consumption on plasma PON-1 activity and lipid profile in healthy nonobese subjects. METHODS: Thirty-one subjects (body mass index [BMI] 24.4 ± 4...
July 2016: Journal of the American College of Nutrition
Catarina N Matias, Pedro B Júdice, Diana A Santos, João P Magalhães, Cláudia S Minderico, David A Fields, Luís B Sardinha, Analiza M Silva
OBJECTIVE: It is important for highly active individuals to easily and accurately assess their hydration level. Bioelectrical impedance (BIA) can potentially meet these needs but its validity in active individuals is not well established. We aim to validate total body water (TBW), extracellular water (ECW), and intracellular water (ICW) estimates obtained from 50 kHz BIA, bioelectrical impedance spectroscopy (BIS), and BIA-based models against dilution techniques in 2 populations: active adults and elite athletes...
July 2016: Journal of the American College of Nutrition
Lucivalda Pereira Magalhães Oliveira, Rosangela Passos de Jesus, Ramona Souza Silva Baqueiro Boulhosa, Thiago Onofre, Carlos Mauricio Cardeal Mendes, Leonardo Vinhas, Dan Linetzky Waitzberg, Denise Carneiro Lemaire, Lourianne N Cavalcante, Andre Castro Lyra, Luiz Guilherme C Lyra
OBJECTIVE: To investigate the prevalence of insulin resistance (IR) and its association with clinical parameters in patients with hepatitis C virus (HCV) genotype 1 without obesity or type 2 diabetes. METHODS: One hundred and twenty-seven HCV-infected patients admitted to the Nutrition and Hepatology Clinic were included. Statistical analysis was performed using the Mann-Whitney test, Fisher's exact test, and Poisson regression analysis. RESULTS: The prevalence of IR (homeostasis model assessment [HOMA]-IR ≥ 3...
July 2016: Journal of the American College of Nutrition
Michael T Dinwiddie, Paul D Terry, Jay Whelan, Rachel E Patzer
Animal studies have shown that dietary omega-3 polyunsaturated fatty acids (n-3) may play a role in the development of prostate cancer, but the results of epidemiologic studies have been equivocal. Associations in humans may vary depending on study design, measurement methodology of fatty acid intake, intake ranges, and stage of cancer development. To address this, we identified 36 published studies through PubMed (Medline) from 1993 through 2013 on long-chain n-3s and prostate cancer. Exposure measurements included dietary assessment and biomarker levels...
July 2016: Journal of the American College of Nutrition
Leila Azadbakht, Maryam Hajishafiee, Jafar Golshahi, Ahmad Esmaillzadeh
BACKGROUND AND OBJECTIVE: The high prevalence of obesity in the pediatric age groups draws attention to lifestyle factors including diet and physical activity. Data on obesity in adolescents and their snacking behavior are conflicting. This study aimed to assess the association of snacking behavior and obesity among female adolescents in Isfahan, Iran. SUBJECTS AND DESIGN: This cross-sectional study was carried out on 265 female Isfahanian students who were chosen by systematic cluster random sampling...
July 2016: Journal of the American College of Nutrition
Magda I Mohamad, Enas E El-Sherbeny, Meram M Bekhet
AIM: The aim of this study was to evaluate the effect of vitamin D supplementation in patients with type 2 diabetes mellitus (T2DM) with regard to their glycemic control and lipid profile. METHODS: One hundred subjects with T2DM were recruited and given 4500 IU/day of vitamin D for 2 months. 25-Hydroxyvitamin D [25(OH)D], fasting blood glucose (FBG), glycosylated hemoglobin A1c (HbA1c), and lipid profile were measured pre- and postsupplementation. RESULTS: There was a significant increase in the mean value of 25(OH)D level after supplementation (baseline level 16 ± 5...
July 2016: Journal of the American College of Nutrition
Neda Ghamarzad Shishavan, Bahram Pourghassem Gargari, Sousan Kolahi, Mehrzad Hajialilo, Mohammad Asghari Jafarabadi, Yousef Javadzadeh
OBJECTIVES: Rheumatoid arthritis (RA) is an autoimmune disease characterized by an increase in some autoantibodies and proteolytic enzymes, leading to joint destruction. Although recent investigations have considered vitamin K as an anti-inflammatory nutrient with an important role in bone metabolism, there is currently limited information on its efficacy in RA. We aimed to examine the effects of vitamin K1 (phylloquinone) on the biomarker of joint destruction and autoantibody in patients with RA...
July 2016: Journal of the American College of Nutrition
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