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nutritional epidemiology

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https://www.readbyqxmd.com/read/28535308/invited-commentary-the-contribution-to-the-field-of-nutritional-epidemiology-of-the-landmark-1985-publication-by-willett-et-al
#1
Amy F Subar, Lawrence H Kushi, Jennifer L Lerman, Laurence S Freedman
The semiquantitative food frequency questionnaire (FFQ) has been the primary source of dietary exposure data in epidemiology for decades. Although frequency instruments had been evaluated before the 1985 publication "Reproducibility and Validity of a Semiquantitative Food Frequency Questionnaire" by Willett et al. (Am J Epidemiol. 1985;122(1):51-65), that paper was the prototype for the development and validation of what was then a highly innovative method for collecting dietary data. This approach was adopted in nearly all subsequent cohort studies of diet and disease...
May 23, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28535176/invited-commentary-30-year-perspective-on-the-seven-countries-study
#2
Henry Blackburn
In a 1986 article (Am J Epidemiol. 1986;124(6):903-915), Keys et al. described and discussed 15-year findings from 15 cohorts of the Seven Countries Study (SCS), the first systematic study of diet, risk characteristics, disease-specific death rates, and their ecologic and individual associations both among and within whole populations of working men in regions with contrasting traditional diets. The SCS findings included 30-fold cohort differences in rates of death from coronary heart disease and 3-fold differences in rates of death from all causes, along with strong ecologic associations among diet, risk factors, and disease rates...
May 23, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28533006/association-between-preoperative-albumin-levels-and-length-of-stay-after-radical-cystectomy
#3
Rohan G Bhalla, Li Wang, Sam S Chang, Mark D Tyson
PURPOSE: Using contemporary population-based epidemiologic data, we measured the relationship between preoperative serum albumin level and hospital length of stay (LOS) after cystectomy and urinary diversion. MATERIALS & METHODS: Data was acquired from the 2014-2015 National Surgical Quality Improvement Program (NSQIP) database. We identified 1,582 adult patients who underwent a cystectomy between January 1st 2014 and December 31st 2015 and had a documented preoperative serum albumin level...
May 19, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28528692/insulin-like-growth-factor-igf-axis-in-cancerogenesis
#4
REVIEW
Aldona Kasprzak, Wojciech Kwasniewski, Agnieszka Adamek, Anna Gozdzicka-Jozefiak
Determination of the role of insulin-like growth factor (IGF) family components in carcinogenesis of several human tumors is based on numerous epidemiological and pre-clinical studies, experiments in vivo and in vitro and on attempts at application of drugs affecting the IGF axis. Investigative hypotheses in original studies were based on biological functions manifested by the entire family of IGF (ligands, receptors, linking proteins, adaptor molecules). In the context of carcinogenesis the most important functions of IGF family involve intensification of proliferation and inhibition of cell apoptosis and effect on cell transformation through synthesis of several regulatory proteins...
April 2017: Mutation Research
https://www.readbyqxmd.com/read/28526377/orange-juice-allied-to-a-reduced-calorie-diet-results-in-weight-loss-and-ameliorates-obesity-related-biomarkers-a-randomized-controlled-trial
#5
Carolina Ribeiro, Grace Dourado, Thais Cesar
OBJECTIVE: Assumptions have linked orange juice (OJ) consumption with weight gain and adverse effects on health due to its sugar content; however, epidemiologic studies have not shown increased risk for overweight or obesity with the consumption of 100% OJ. The aim of this study was to verify whether the combination of a reduced-calorie diet (RCD) and 100% OJ contribute to weight loss, promote changes in glucose and lipid metabolism, and improve diet quality in obese individuals. METHODS: A randomized controlled trial with 78 obese patients (age 36 ± 1 y, body mass index [BMI] 33 ± 3 kg/m(2)) were enrolled in two groups: Individuals in the OJ group submitted to an RCD that included OJ (500 mL/d), and individuals in the control group submitted to an RCD without OJ...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28522901/transition-of-early-phase-treatment-for-acute-pancreatitis-an-analysis-of-nationwide-epidemiological-survey
#6
EDITORIAL
Shin Hamada, Atsushi Masamune, Tooru Shimosegawa
Treatment of acute pancreatitis (AP) is one of the critical challenges to the field of gastroenterology because of its high mortality rate and high medical costs associated with the treatment of severe cases. Early-phase treatments for AP have been optimized in Japan, and clinical guidelines have been provided. However, changes in early-phase treatments and the relationship between treatment strategy and clinical outcome remain unclear. Retrospective analysis of nationwide epidemiological data shows that time for AP diagnosis has shortened, and the amount of initial fluid resuscitation has increased over time, indicating the compliance with guidelines...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28511080/cadmium-and-alzheimer-s-disease-mortality-in-u-s-adults-updated-evidence-with-a-urinary-biomarker-and-extended-follow-up-time
#7
Qing Peng, Kelly M Bakulski, Bin Nan, Sung Kyun Park
Cadmium has been linked to impaired cognitive function in adults and may cause behavioral, physiological and molecular abnormalities characteristic of Alzheimer's disease (AD) in animals. Evidence linking cadmium and AD in humans is limited, but supportive. In the most recent epidemiologic study, blood cadmium in U.S. adults was positively associated with elevated AD mortality 7-13 years later. The association between urinary cadmium - an arguably more appropriate biomarker for studying chronic diseases - and AD mortality has not yet been explored...
May 13, 2017: Environmental Research
https://www.readbyqxmd.com/read/28510585/the-prevalence-of-underweight-overweight-and-obesity-in-bangladeshi-adults-data-from-a-national-survey
#8
Tuhin Biswas, Sarah P Garnett, Sonia Pervin, Lal B Rawal
BACKGROUND: Over the two last decades Bangladesh, a low-income country, has experienced a rapid demographic and epidemiological transition. The population has increased substantially with rapid urbanization and changing pattern of disease, which at least in part, can be explained by nutritional changes. However, the nutritional status of the adult population has not been previously described. Hence, the objective of this study was to estimate the prevalence and explore socio-demographic determinants of underweight, overweight and obesity among the Bangladeshi adult population...
2017: PloS One
https://www.readbyqxmd.com/read/28497727/using-white-tailed-deer-odocoileus-virginianus-in-infectious-disease-research
#9
Mitchell Palmer, Rebecca J Cox, W Ray Waters, Tyler C Thacker, Diana L Whipple
Between 1940 and 2004, more than 335 emerging infectious disease events were reported in the scientific literature. Themajority (60%) of these events involved zoonoses, most of which (72%) were of wildlife origin or had an epidemiologically important wildlife host. Because this trend of increasing emerging diseases likely will continue, understanding the pathogenesis, transmission, and diagnosis of these diseases in the relevant wildlife host is paramount. Achieving this goal often requires using wild animals as research subjects, which are vastly different from the traditional livestock or laboratory animals used by most universities and institutions...
May 11, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28490271/validation-of-a-cardiovascular-disease-policy-micro-simulation-model-using-both-survival-and-receiver-operating-characteristic-curves
#10
Ankur Pandya, Stephen Sy, Sylvia Cho, Sartaj Alam, Milton C Weinstein, Thomas A Gaziano
BACKGROUND: Despite some advances, cardiovascular disease (CVD) remains the leading cause of death and healthcare costs in the United States. We therefore developed a comprehensive CVD policy simulation model that identifies cost-effective approaches for reducing CVD burden. This paper aims to: 1) describe our model in detail; and 2) perform model validation analyses. METHODS: The model simulates 1,000,000 adults (ages 35 to 80 years) using a variety of CVD-related epidemiological data, including previously calibrated Framingham-based risk scores for coronary heart disease and stroke...
May 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28487633/cochlear-homocysteine-metabolism-at-the-crossroad-of-nutrition-and-sensorineural-hearing-loss
#11
REVIEW
Teresa Partearroyo, Néstor Vallecillo, María A Pajares, Gregorio Varela-Moreiras, Isabel Varela-Nieto
Hearing loss (HL) is one of the most common causes of disability, affecting 360 million people according to the World Health Organization (WHO). HL is most frequently of sensorineural origin, being caused by the irreversible loss of hair cells and/or spiral ganglion neurons. The etiology of sensorineural HL (SNHL) is multifactorial, with genetic and environmental factors such as noise, ototoxic substances and aging playing a role. The nutritional status is central in aging disability, but the interplay between nutrition and SNHL has only recently gained attention...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28487232/potential-contribution-of-insecticide-exposure-and-development-of-obesity-and-type-2-diabetes
#12
REVIEW
Xiao Xiao, John M Clark, Yeonhwa Park
The introduction of insecticides has greatly improved agricultural productivity and human nutrition; however, the wide use of insecticides has also sparked growing concern over their health impacts. Increased rate of cancers, neurodegenerative disorders, reproductive dysfunction, birth defects, respiratory diseases, cardiovascular diseases and aging have been linked with insecticide exposure. Meanwhile, a growing body of evidence is suggesting that exposure to insecticides can also potentiate the risk of obesity and type 2 diabetes...
May 6, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28481907/relationship-between-anthropometric-parameters-and-open-angle-glaucoma-the-korea-national-health-and-nutrition-examination-survey
#13
Jae Yeun Lee, Tae-Woo Kim, Hyun Tae Kim, Mi Yeon Lee, Hye Won Min, Yu Sam Won, Hyun Seok Kwon, Ki Ho Park, Joon Mo Kim
AIMS: To evaluate the relationships between open-angle glaucoma (OAG) and various anthropometric measurements. DESIGN: Korea National Health and Nutrition Examination Survey (KNHANES), a population-based cross-sectional study using a complex, stratified, multistage, probability-cluster survey. METHODS: A total of 5,255 participants including 247 glaucoma patients, aged ≥ 19 years were included from the KNHANES V database. Glaucoma diagnosis was based on International Society of Geographical and Epidemiological Ophthalmology criteria...
2017: PloS One
https://www.readbyqxmd.com/read/28479137/crossover-designs-in-nutrition-and-dietetics-research
#14
Jeffrey E Harris, Hollie A Raynor
This article is the 12th installment in a statistical series exploring the importance of research design, epidemiologic methods, and statistical analysis as applied to nutrition and dietetics research. The purpose of this series is to assist registered dietitian nutritionists in interpreting nutrition research and aid nutrition researchers in applying scientific principles to produce high-quality nutrition research. This article focuses on the use of crossover designs in nutrition and dietetics research. The purpose is to distinguish the crossover design from the randomized clinical trial, define important terms, illustrate a 2×2 crossover design, discuss potential confounding variables in the crossover design, describe the analysis and interpretation of crossover data, present sample size considerations, provide examples of the use of the crossover design in nutrition and dietetics, and discuss additional considerations when the independent variable has more than two levels...
May 4, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28475157/dietary-patterns-and-obesity-among-chinese-adults-results-from-a-household-based-cross-sectional-study
#15
Yan Zou, Ronghua Zhang, Shichang Xia, Lichun Huang, Jia Meng, Yueqiang Fang, Gangqiang Ding
The key dietary pattern other than dietary factors influencing obesity has been reported by several large epidemiological studies. This study was carried out between 2010 and 2012 including 1613 adult residents in Zhejiang Province. Dietary patterns were extracted by factor analysis based on 24-h dietary recall. Associations with dietary patterns and obesity were examined and adjusted for age and gender by logistic regression. Five dietary patterns were identified by factor analysis with their eigenvalues greater than 1: 'cereal, animal, and plant food', 'high protein food', 'plant food', 'poultry', and 'beverage'...
May 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28469546/relative-validation-of-a-food-frequency-questionnaire-to-estimate-food-intake-in-an-adult-population
#16
Nina Steinemann, Leticia Grize, Katrin Ziesemer, Peter Kauf, Nicole Probst-Hensch, Christine Brombach
Background: Scientifically valid descriptions of dietary intake at population level are crucial for investigating diet effects on health and disease. Food frequency questionnaires (FFQs) are the most common dietary tools used in large epidemiological studies. Objective: To examine the relative validity of a newly developed FFQ to be used as dietary assessment tool in epidemiological studies. Design: Validity was evaluated by comparing the FFQ and a 4-day weighed food record (4-d FR) at nutrient and food group levels, Spearman's correlations, Bland-Altman analysis and Wilcoxon rank sum tests were used...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28465303/epidemiology-of-blindness-in-children
#17
REVIEW
Ameenat Lola Solebo, Lucinda Teoh, Jugnoo Rahi
An estimated 14 million of the world's children are blind. A blind child is more likely to live in socioeconomic deprivation, to be more frequently hospitalised during childhood and to die in childhood than a child not living with blindness. This update of a previous review on childhood visual impairment focuses on emerging therapies for children with severe visual disability (severe visual impairment and blindness or SVI/BL).For children in higher income countries, cerebral visual impairment and optic nerve anomalies remain the most common causes of SVI/BL, while retinopathy of prematurity (ROP) and cataract are now the most common avoidable causes...
May 2, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28464174/inverse-correlation-of-lymphoid-leukemia-incidence-and-anemia-prevalence-among-preschool-children
#18
Frank D Groves
OBJECTIVE: The relation between the prevalence of anemia and incidence of childhood acute lymphoblastic leukemia was explored using international cross-sectional data as well as US time-series data. METHODS: Lymphoid leukemia incidence rates for various countries from the International Agency for Research on Cancer were regressed on anemia prevalence rates from the World Health Organization in a cross-sectional analysis. Four decades of acute lymphoblastic leukemia incidence (from the Surveillance, Epidemiology, and End Results Program cancer registries) and anemia prevalence (from the National Health and Nutrition Examination Survey) also were examined in a time-series analysis...
May 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28459818/case-control-study-determination-of-potential-risk-factors-for-the-colonization-of-healthy-volunteers-with-streptococcus-gallolyticus-subsp-gallolyticus
#19
Jessika Dumke, Tanja Vollmer, Oke Akkermann, Cornelius Knabbe, Jens Dreier
Streptococcus gallolyticus subsp. gallolyticus was identified in humans and animals as commensal of the gut and can act as a causative agent of endocarditis and septicemia. A case-control study was performed to identify yet unknown risk factors for the transmission of this facultative pathogen. The prevalence in the gut of 99 healthy volunteers was determined using real-time polymerase chain reaction resulting in 62.5% S. gallolyticus subsp. gallolyticus positive excrements. Subsequent cultivation offered three isolates and epidemiological analysis based on MLST revealed sequence type (ST) 3 and ST 7, previously detected from bovine and endocarditis patients...
2017: PloS One
https://www.readbyqxmd.com/read/28452621/the-number-of-teeth-is-inversely-associated-with-metabolic-syndrome-a-korean-nationwide-population-based-study
#20
Hye-Sun Shin
BACKGROUND: The objectives of this research are to determine the relationship between the number of natural teeth and metabolic syndrome (MetS) in a representative sample of the Korean population. METHODS: From the Korea National Health and Nutrition Examination Survey, a cross- sectional study was conducted on 13,066 participants over the age of 19 years. The number of teeth was assessed by clinical oral examination. MetS was defined based on the Joint Interim Statement of the International Diabetes Federation Task Force on Epidemiology and Prevention...
April 28, 2017: Journal of Periodontology
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