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coffee and health

Idan Hecht, Asaf Achiron, Vitaly Man, Zvia Burgansky-Eliash
PURPOSE: Primary open angle glaucoma is a chronic optic neuropathy affecting millions of people worldwide and represents a major public health issue. Environmental factors, behaviors, and diet are intimately related to patient health and may play a role in the pathogenesis and progression of glaucoma. This study aims to review the literature, focusing on the last three years, regarding modifiable lifestyle interventions in the management of primary open angle glaucoma. METHODS: Electronic databases were searched for studies published between January 2013 and July 2016 on the topic of lifestyle interventions in primary open angle glaucoma...
October 14, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
Beatriz Sarriá, Sara Martínez-López, José Luis Sierra-Cinos, Luis García-Diz, Raquel Mateos, Laura Bravo-Clemente
PURPOSE: Preventive health effects of coffee could have a widespread impact on public health. Green coffee has more phenols than roasted, and thus is healthier, although with less acceptable organoleptic properties. Therefore, the effects of regularly consuming a green/roasted coffee blend (35/65) on the main components of MetS in humans were evaluated. METHODS: A crossover, randomized, controlled study was performed in 25 normocholesterolaemic and 27 hypercholesterolaemic men and women aged 18-45 years with BMI 18-25 kg/m(2)...
October 13, 2016: European Journal of Nutrition
Joseph J Knapik, Daniel W Trone, Susan McGraw, Ryan A Steelman, Krista G Austin, Harris R Lieberman
Data from the National Health and Nutrition Examination Survey (NHANES) indicate 89% of Americans regularly consume caffeine, but these data do not include military personnel. This cross-sectional study examined caffeine use in Navy and Marine Corps personnel, including prevalence, amount of daily consumption, and factors associated with use. A random sample of Navy and Marine Corps personnel was contacted and asked to complete a detailed questionnaire describing their use of caffeine-containing substances, in addition to their demographic, military, and lifestyle characteristics...
October 9, 2016: Nutrients
Jyotika Basdav, Firoza Haffejee, T Puckree
BACKGROUND: Introspection into the factors that affect student success at higher education institutions has gained significant momentum in recent years. Teaching and learning has come under the spotlight with quality enhancement and teaching development funding focussing on student support, enhancing the student environment, and enhancing academics as teachers. Included in this are aspects that try to understand the student. An aspect that is not receiving attention is student health, specifically headaches which could impact student success...
2016: SpringerPlus
Min-Hsiung Pan, Yen-Chen Tung, Guliang Yang, Shiming Li, Chi-Tang Ho
Obesity is a serious health problem in adults and children worldwide. However, the basic strategies for the management of obesity (diet, exercise, drugs and surgery) have limitations and side effects. Therefore, many researchers have sought to identify bioactive components in food. Tea and coffee are the most frequently consumed beverages in the whole world. Their health benefits have been studied for decades, especially those of green tea. The anti-obesity effect of tea and coffee has been studied for at least ten years...
October 10, 2016: Food & Function
Emily Urry, Alexander Jetter, Hans-Peter Landolt
BACKGROUND: Coffee consumption is a known inducer of cytochrome P450 1A2 (CYP1A2) enzyme activity. We recently observed that a group of type-2 diabetes patients consumed more caffeine (coffee) on a daily basis than non-type-2 diabetes controls. Here, we investigated whether type-2 diabetes cases may metabolize caffeine faster than non-type-2 diabetes controls. METHODS: To estimate CYP1A2 enzyme activity, an established marker of caffeine metabolism, we quantified the paraxanthine/caffeine concentration ratio in saliva in 57 type-2 diabetes and 146 non-type-2 diabetes participants in a case-control field study...
2016: Nutrition & Metabolism
Thuy Nguyen, Meredith Kuchera, Katie Smoot, Charles Diako, Beata Vixie, Carolyn F Ross
The objective of this study was to determine if Chardonnay grape seed pomace (GSP), a waste stream of wine production, could be used as a functional ingredient in brewed coffee. Two consumer panels were conducted to assess the acceptance of coffee at coffee replacement (w/w) values of 0% (control), 6.25%, 12.50%, 18.75%, or 25% GSP. The 1st consumer panel (n = 80) assessed the coffee samples served "black." The 2nd panel (n = 67) assessed the coffee samples with adjustment (that is, sweeteners, milk, and cream) options available...
October 5, 2016: Journal of Food Science
Marilyn C Cornelis, Tim Kacprowski, Cristina Menni, Stefan Gustafsson, Edward Pivin, Jerzy Adamski, Anna Artati, Chin B Eap, Georg Ehret, Nele Friedrich, Andrea Ganna, Idris Guessous, Georg Homuth, Lars Lind, Patrik K Magnusson, Massimo Mangino, Nancy L Pedersen, Maik Pietzner, Karsten Suhre, Henry Völzke, Murielle Bochud, Tim D Spector, Hans J Grabe, Erik Ingelsson
Caffeine is the most widely consumed psychoactive substance in the world and presents with wide interindividual variation in metabolism. This variation may modify potential adverse or beneficial effects of caffeine on health. We conducted a genome-wide association study (GWAS) of plasma caffeine, paraxanthine, theophylline, theobromine and paraxanthine/caffeine ratio among up to 9,876 individuals of European ancestry from six population-based studies. A single SNP at 6p23 (near CD83) and several SNPs at 7p21 (near AHR), 15q24 (near CYP1A2) and 19q13...
October 3, 2016: Human Molecular Genetics
Myueng Guen Oh, Mi Ah Han, Man Woo Kim, Chan Guk Park, Young Dae Kim, Jun Lee
BACKGROUND AND OBJECTIVES: The favourable effects of coffee on liver enzymes have been reported worldwide. This study investigated the association between coffee consumption and serum aminotransferase concentration in Korean adults. METHODS AND STUDY DESIGN: Data were obtained from the fourth and fifth Korea National Health and Nutrition Examination Surveys. Elevated alanine aminotransferase (ALT) and aspartate aminotransferase (AST) concentration were defined as >30 IU/L for men and >19 IU/L for women...
December 2016: Asia Pacific Journal of Clinical Nutrition
Giuseppe Grosso, Agnieszka Micek, Justyna Godos, Salvatore Sciacca, Andrzej Pajak, Miguel A Martínez-González, Edward L Giovannucci, Fabio Galvano
Coffee consumption has been associated with several benefits toward human health. However, its association with mortality risk has yielded contrasting results, including a non-linear relation to all-cause and cardiovascular disease (CVD) mortality and no association with cancer mortality. As smoking habits may affect the association between coffee and health outcomes, the aim of the present study was to update the latest dose-response meta-analysis of prospective cohort studies on the association between coffee consumption and mortality risk and conduct stratified analyses by smoking status and other potential confounders...
October 3, 2016: European Journal of Epidemiology
Susana Casal, Irene Rebelo
beverages, prepared in a multitude of ways around the world, are increasingly part of our daily lives. Although considered an unhealthy beverage for decades, is increasingly the headline of medical journals in association with a reduced risk for several diseases. What if this beverage could give us pleasure, while modulating mood and lowering the risk for several diseases of the modern society, including type 2 diabetes (T2D)? Based on the most recent epidemiological and research data, long-term consumption of beverages is associated with a lower risk of developing T2D in healthy individuals, probably involving multiple mechanisms, with interventions on glucose homeostasis, antioxidant activity, and inflammatory biomarkers...
October 3, 2016: Current Medicinal Chemistry
Thomas J Littlejohns, Ruth C Travis, Tim J Key, Naomi E Allen
BACKGROUND: The central role of prostate-specific antigen (PSA) testing in the diagnosis of prostate cancer leads to the possibility that observational studies that report associations between risk factors and prostate cancer could be affected by detection bias. This study aims to investigate whether reported risk factors for prostate cancer are associated with PSA testing in a large middle-aged population-based cohort in the UK. METHODS: The cross-sectional association between a wide range of sociodemographic, lifestyle, dietary and health characteristics with PSA testing was examined in 212,039 men aged 40-69 years in UK Biobank...
September 29, 2016: Cancer Epidemiology
Takemi Sugiyama, Theo Niyonsenga, Natasha J Howard, Neil T Coffee, Catherine Paquet, Anne W Taylor, Mark Daniel
Consistent associations have been observed between macro-level urban sprawl and overweight/obesity, but whether residential proximity to urban centres predicts adiposity change over time has not been established. Further, studies of local-area walkability and overweight/obesity have generated mixed results. This study examined 4-year change in adults' waist circumference in relation to proximity to city centre, proximity to closest suburban centre, and local-area walkability. Data were from adult participants (n=2080) of a cohort study on chronic conditions and health risk factors in Adelaide, Australia...
September 21, 2016: Preventive Medicine
Martin Oman Evans Ii, Brad Starley, Jack Carl Galagan, Joseph Michael Yabes, Sara Evans, Joseph John Salama
Background and Aims. Studies have shown effects of diet on gut microbiota. We aimed to identify foods associated with recurrent Clostridium difficile infection (CDI). Methods. In this cross-sectional survey, consecutive patients diagnosed with CDI were identified by electronic medical records. Colitis symptoms and positive Clostridium difficile assay were confirmed. Health-care onset-health-care facility associated CDI was excluded. Food surveys were mailed to 411 patients. Survey responses served as the primary outcome measure...
2016: Gastroenterology Research and Practice
Emily Urry, Alexander Jetter, Sebastian C Holst, Wolfgang Berger, Giatgen A Spinas, Wolfgang Langhans, Hans-Peter Landolt
OBJECTIVES: The purpose of this study was to examine the possible links between type 2 diabetes, daytime sleepiness, sleep quality and caffeine consumption. METHODS: In this case-control field study, comparing type 2 diabetic (n=134) and non-type 2 diabetic (n=230) participants, subjects completed detailed and validated questionnaires to assess demographic status, health, daytime sleepiness, sleep quality and timing, diurnal preference, mistimed circadian rhythms and habitual caffeine intake...
September 20, 2016: Journal of Psychopharmacology
Angela Aherrera, Asli Çarkoğlu, Mutlu Hayran, Gül Ergör, Toker Ergüder, Bekir Kaplan, Jolie Susan, Laura Zheng, Joanna E Cohen, Ana Navas-Acien
INTRODUCTION: In 2009, Turkey extended the smoke-free legislation to hospitality venues. Compliance, however, remains low in some hospitality venues. We identified characteristics associated with knowledge of health effects that can be prevented by the smoke-free law, the attitude towards and enforcement of the law. METHODS: In 2014, we conducted 400 interviews with hospitality venue owners and employees in 7 cities in Turkey. The venues were identified based on a random sampling strategy in a previous phase of the study...
September 19, 2016: Tobacco Control
Noel J Leigh, Ralph I Lawton, Pamela A Hershberger, Maciej L Goniewicz
BACKGROUND: E-cigarettes or electronic nicotine delivery systems (ENDS) are designed to deliver nicotine-containing aerosol via inhalation. Little is known about the health effects of flavoured ENDS aerosol when inhaled. METHODS: Aerosol from ENDS was generated using a smoking machine. Various types of ENDS devices or a tank system prefilled with liquids of different flavours, nicotine carrier, variable nicotine concentrations and with modified battery output voltage were tested...
September 15, 2016: Tobacco Control
Cathy Rompelberg, Minne B Heringa, Gerda van Donkersgoed, José Drijvers, Agnes Roos, Susanne Westenbrink, Ruud Peters, Greet van Bemmel, Walter Brand, Agnes G Oomen
Titanium dioxide (TiO2) is commonly applied to enhance the white colour and brightness of food products. TiO2 is also used as white pigment in other products such as toothpaste. A small fraction of the pigment is known to be present as nanoparticles (NPs). Recent studies with TiO2 NPs indicate that these particles can have toxic effects. In this paper, we aimed to estimate the oral intake of TiO2 and its NPs from food, food supplements and toothpaste in the Dutch population aged 2 to over 70 years by combining data on food consumption and supplement intake with concentrations of Ti and TiO2 NPs in food products and supplements...
September 13, 2016: Nanotoxicology
R S Scurachio, F Mattiucci, W G Santos, L H Skibsted, D R Cardoso
Caffeine metabolites were found to bind riboflavin with dissociation constant in the millimolar region by an exothermic process with positive entropy of reaction, which was found by (1)H NMR and fluorescence spectroscopy to occur predominantly by hydrogen bonding with water being released from riboflavin solvation shell upon caffeine metabolite binding to riboflavin. The caffeine metabolites 1-methyl uric acid and 1,7-dimethyl uric acid were shown by transient absorption laser flash photolysis to be efficient as quenchers of triplet riboflavin with second-order rate constant of 1...
October 2016: Journal of Photochemistry and Photobiology. B, Biology
Veronica Wendy Setiawan, Stephen J Pandol, Jacqueline Porcel, Pengxiao C Wei, Lynne R Wilkens, Loïc Le Marchand, Malcolm C Pike, Kristine R Monroe
BACKGROUND & AIMS: Pancreatitis is a source of substantial morbidity and health cost in the United States. Little is known about how diet might contribute to its pathogenesis. To characterize dietary factors that are associated with risk of pancreatitis by disease subtype, we conducted a prospective analysis of 145,886 African Americans, Native Hawaiians, Japanese Americans, Latinos, and whites in the Multiethnic Cohort. METHODS: In the Multiethnic Cohort (age at baseline, 45-75 y), we identified cases of pancreatitis using hospitalization claim files from 1993 through 2012...
September 5, 2016: Clinical Gastroenterology and Hepatology
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