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https://www.readbyqxmd.com/read/29333614/the-effect-of-risk-factor-misclassification-on-the-partial-population-attributable-risk
#1
Benedict H W Wong, Sarah B Peskoe, Donna Spiegelman
The partial population attributable risk (pPAR) is used to quantify the population-level impact of preventive interventions in a multifactorial disease setting. In this paper, we consider the effect of nondifferential risk factor misclassification on the direction and magnitude of bias of pPAR estimands and related quantities. We found that the bias in the uncorrected pPAR depends nonlinearly and nonmonotonically on the sensitivities, specificities, relative risks, and joint prevalence of the exposure of interest and background risk factors, as well as the associations between these factors...
January 15, 2018: Statistics in Medicine
https://www.readbyqxmd.com/read/29333111/diet-gut-microbiota-and-colorectal-cancer-prevention-a-review-of-potential-mechanisms-and-promising-targets-for-future-research
#2
Mingyang Song, Andrew T Chan
Diet plays an important role in the development of colorectal cancer. Emerging data have implicated the gut microbiota in colorectal cancer. Diet is a major determinant for the gut microbial structure and function. Therefore, it has been hypothesized that alterations in gut microbes and their metabolites may contribute to the influence of diet on the development of colorectal cancer. We review several major dietary factors that have been linked to gut microbiota and colorectal cancer, including major dietary patterns, fiber, red meat and sulfur, and obesity...
December 2017: Current Colorectal Cancer Reports
https://www.readbyqxmd.com/read/29324583/an-explanatory-and-predictive-model-of-the-variation-in-esophageal-cancer-incidence-on-the-basis-of-changes-in-the-exposure-to-risk-factors
#3
Clara Castro, Bárbara Peleteiro, Samantha Morais, Milton Severo, Maria José Bento, Nuno Lunet
Variations in the exposure to risk factors may be used to explain past cancer trends and to predict its future burden. This study aimed to develop a model to describe and predict the variation of esophageal cancer incidence in 1995-2005, taking into account changes in exposures to risk factors. We adapted an existing model to calculate the expected variation in the number of esophageal cancer cases, between 1995 and 2005, in Australia, Japan, Italy, Portugal, the UK, and the USA, because of changes in exposures to risk factors, taking into account the corresponding lag times...
January 10, 2018: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29319188/immunoprofile-of-%C3%AE-gal-and-b-antigen-specific-responses-differentiate-red-meat-allergic-patients-from-healthy-individuals
#4
Danijela Apostolovic, Rui Da Silva Rodrigues, Preethi Thomas, Maria Starkhammar, Carl Hamsten, Marianne van Hage
BACKGROUND: The Galactose-α-1,3-galactose (α-Gal) epitope is involved in red meat allergy. As α-Gal is structurally similar to the blood group B antigen, we explored the relationship between the immune responses to α-Gal- and the B-antigen in red meat allergic patients compared to healthy A/O or B blood donors. METHODS: Sera from 51 red meat allergic patients IgE positive to α-Gal and 102 healthy blood donors (51 blood group A/O; 51 blood group B), were included...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29317721/sex-differences-in-risk-factors-of-uncomplicated-colonic-diverticulosis-in-a-metropolitan-area-from-northern-china
#5
Fang Yang, Yanmin Zheng, Xihui Jiang, Zhengyan Su, Ya Wang, Lin Lin, Houning Lv, Jie Zhang, Jingwen Zhao, Bangmao Wang, Kui Jiang, Chao Sun
As the world's most populated and rapidly aging country, there is limited information on sex-related differences in factors regarding uncomplicated colonic diverticulosis in China. We aimed to investigate sex differences in individual risk factor in a northern metropolis. Patients with colonic diverticulosis who underwent indicated colonoscopy were queried with respect to medical history and demographic features. Demographic information, life style factors and co-morbidities were retrieved from a prospective dataset...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29316013/the-effect-of-transport-on-the-quality-of-rabbit-meat
#6
Joanna Składanowska-Baryza, Agnieszka Ludwiczak, Ewa Pruszyńska-Oszmałek, Paweł Kołodziejski, Marta Bykowska, Marek Stanisz
The analyzed material included 40 hybrid rabbits slaughtered at the age of 90 days. The control group was transported directly after weaning, while the transport group was transported directly prior to slaughter. The experiment was designed to assess the transport stress, carcass and meat quality implications, taking into account the muscle type and sex. The transported animals were characterized by a higher level of blood cortisol, glucose and triglycerides (P < 0.0001), and a lower level of insulin (P < 0...
January 8, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29315586/dietary-enzymatically-treated-artemisia-annua-l-improves-meat-quality-antioxidant-capacity-and-energy-status-of-breast-muscle-in-heat-stressed-broilers
#7
Xiaoli Wan, Hussain Ahmad, Lili Zhang, Zhiyue Wang, Tian Wang
BACKGROUND: Heat stress (HS) is detrimental to animal origin food production. Artemisia annua L., a natural source of phenolic compounds and flavonoids, exhibits antioxidant property. This study was conducted to evaluate the effects of dietary enzymatically treated Artemisia annua L. (EA) supplementation on meat quality, antioxidant capacity and energy status of breast muscle in heat-stressed broilers. RESULTS: The EA inclusion increased the redness value, reduced drip loss, decreased reactive oxygen metabolites and thiobarbituric acid-reactive substances, increased antioxidant enzyme activities, and reduced the ferric reducing antioxidant power and free radical scavenging abilities of breast muscle in heat-treated broilers...
January 9, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29304763/attributable-causes-of-colorectal-cancer-in-china
#8
Meng-Jia Gu, Qiu-Chi Huang, Cheng-Zhen Bao, Ying-Jun Li, Xiao-Qin Li, Ding Ye, Zhen-Hua Ye, Kun Chen, Jian-Bing Wang
BACKGROUND: Colorectal cancer is the 4th common cancer in China. Most colorectal cancers are due to modifiable lifestyle factors, but few studies have provided a systematic evidence-based assessment of the burden of colorectal cancer incidence and mortality attributable to the known risk factors in China. METHODS: We estimated the population attributable faction (PAF) for each selected risk factor in China, based on the prevalence of exposure around 2000 and relative risks from cohort studies and meta-analyses...
January 5, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29290351/red-meat-intake-in-chronic-kidney-disease-patients-two-sides-of-the-coin
#9
REVIEW
Denise Mafra, Natalia A Borges, Ludmila Ferreira Medeiros de Franca Cardozo, Juliana S Anjos, Ana Paula Black, Cristiane Moraes, Peter Bergman, Bengt Lindholm, Peter Stenvinkel
Red meat is an important dietary source of high biological value protein and micronutrients such as vitamins, iron, and zinc that exert many beneficial functions. However, high consumption of animal protein sources, especially red meat, results in an increased intake of saturated fat, cholesterol, iron, and salt, as well as an excessive acid load. Red meat intake may lead to an elevated production of uremic toxins by the gut microbiota, such as trimethylamine n-oxide (TMAO), indoxyl sulfate, and p-cresyl sulfate...
February 2018: Nutrition
https://www.readbyqxmd.com/read/29289998/molecular-signature-of-nitric-oxide-on-major-cancer-hallmarks-of-colorectal-carcinoma
#10
REVIEW
Paramita Mandal
Colorectal cancer (CRC) is the one of the most important diseases throughout the world. Several aetiological risk factors, viz. sedentary life style, smoking, alcohol intake, less physical activity, red meat, and microbiota, are associated with the development of CRC. Molecular pathophysiology of CRC implies inflammation, metastasis, apotosis and angiogenesis. Inflammation involves interaction between various immune cells, inflammatory cells, chemokines, cytokines, and pro-inflammatory mediators, such as cyclooxygenase (COX) and lipoxygenase (LOX) pathways, which may lead to signalling towards, tumour cell proliferation, growth, and invasion whereas nitric oxide (NO) has been associated with metastasis, apoptosis, and angiogenesis...
December 30, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/29282011/common-variants-in-glucuronidation-enzymes-and-membrane-transporters-as-potential-risk-factors-for-colorectal-cancer-a-case-control-study
#11
Sabrina Falkowski, Jean-Baptiste Woillard, Deborah Postil, Nicole Tubiana-Mathieu, Eric Terrebonne, Antoine Pariente, Denis Smith, Rosine Guimbaud, Claire Thalamas, Koukeb Rouguieg-Malki, Pierre Marquet, Nicolas Picard
BACKGROUND: Associations between polymorphisms of UDP-glucuronosyltransferases (UGTs) or efflux transporters (e.g., P-glycoprotein and MRP2) and different types of cancer have been described, whereas the role of influx transporters (e.g. OATP1B1 and OATP2B1) has been seldom explored. The GenColon study investigated potential associations between variant alleles of UGTs, efflux and influx transporters and CRC. METHODS: Three hundred CRC cases were matched with 300 controls for age, sex and enrolment site...
December 28, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29274927/red-and-processed-meat-consumption-and-breast-cancer-uk-biobank-cohort-study-and-meta-analysis
#12
Jana J Anderson, Narisa D M Darwis, Daniel F Mackay, Carlos A Celis-Morales, Donald M Lyall, Naveed Sattar, Jason M R Gill, Jill P Pell
AIM: Red and processed meat may be risk factors for breast cancer due to their iron content, administration of oestrogens to cattle or mutagens created during cooking. We studied the associations in UK Biobank and then included the results in a meta-analysis of published cohort studies. METHODS: UK Biobank, a general population cohort study, recruited participants aged 40-69 years. Incident breast cancer was ascertained via linkage to routine hospital admission, cancer registry and death certificate data...
December 21, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29273488/repeated-amblyomma-testudinarium-tick-bites-are-associated-with-elevated-anti-galactose-%C3%AE-1-3-galactose-carbohydrate-ige-antibody-levels-a-retrospective-cohort-study-in-a-single-institute
#13
Hideo Hashizume, Toshiharu Fujiyama, Takatsune Umayahara, Reiko Kageyama, Andrew F Walls, Takahiro Satoh
BACKGROUND: Alpha gal syndrome is a hypersensitivity reaction to red meat mediated by specific IgE antibody to galactose-α-1,3-galactose carbohydrate (alpha gal). Amblyomma tick bites are associated with this condition although the pathophysiology is not understood. OBJECTIVE: To clarify the mechanism of development of alpha gal syndrome after tick bites. METHODS: We compared alpha gal antibodies between patients with and without a history of tick bites and examined the histology of tick bite lesions between patients with and without detectable anti-alpha-gal IgE antibody...
December 19, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29273039/including-pork-in-the-mediterranean-diet-for-an-australian-population-protocol-for-a-randomised-controlled-trial-assessing-cardiovascular-risk-and-cognitive-function
#14
Alexandra T Wade, Courtney R Davis, Kathryn A Dyer, Jonathan M Hodgson, Richard J Woodman, Hannah A D Keage, Karen J Murphy
BACKGROUND: The Mediterranean diet is characterised by the high consumption of extra virgin olive oil, fruits, vegetables, grains, legumes and nuts; moderate consumption of fish, poultry, eggs and dairy; and low consumption of red meat and sweets. Cross sectional, longitudinal and intervention studies indicate that a Mediterranean diet may be effective for the prevention of cardiovascular disease and dementia. However, previous research suggests that an Australian population may find red meat restrictions difficult, which could affect long term sustainability of the diet...
December 22, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/29250751/changes-in-frequency-intake-of-foods-in-patients-undergoing-sleeve-gastrectomy-and-following-a-strict-dietary-control
#15
Jaime Ruiz-Tovar, Maryana Bozhychko, Jone Miren Del-Campo, Evangelina Boix, Lorea Zubiaga, Jose Luis Muñoz, Carolina Llavero
PURPOSE: Dietary intake and food preferences change after bariatric surgery, secondary to gastrointestinal symptoms and dietitian counseling. The aim of this study was to evaluate the changes in the frequency intake of different foods in patients undergoing sleeve gastrectomy and following a strict dietary control. PATIENTS AND METHODS: A prospective observational study of all the morbidly obese patients undergoing laparoscopic sleeve gastrectomy as bariatric procedure between 2007 and 2012 was performed...
December 17, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29249134/galactose-%C3%AE-1-3-galactose-syndrome-an-italian-survey
#16
D Villalta, L Cecchi, A Farsi, F Chiarini, P Minale, S Voltolini, E Scala, O Quercia, L Muratore, V Pravettoni, A M Calamari, G Cortellini, R Asero
Background. The term of α-Gal syndrome, which includes the delayed allergy to red meat and the allergic reactions following the administration of cetuximab, is associated to the presence of specific IgE to α-Gal. In Italy, only anecdotal cases were reported so far. The Association of Italian Allergists (AAITO) carried out a survey with the aim of evaluating presence, characteristics, clinical features, and distribution of the syndrome in Italy. Methods. A web structured questionnaire was made available on the website of AAIITO from July 2016 to January 2017...
November 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29247195/prevalence-of-metabolic-syndrome-and-its-associated-factors-among-multi-ethnic-adults-in-rural-areas-in-xinjiang-china
#17
Heng Guo, Xiang Gao, Rulin Ma, Jiaming Liu, Yusong Ding, Mei Zhang, Jingyu Zhang, Lati Mu, Jia He, Yizhong Yan, Jiaolong Ma, Shuxia Guo, Sheng Wei
Metabolic syndrome (MetS) has become a global public health problem affecting all nations and races. Few studies on the epidemic of metabolic syndrome (MetS) examined multi-ethnic adults in rural areas in Xinjiang, China. We thus investigated the prevalence and risk factors of MetS there. A cross-sectional study was performed in a representative sample of 15020 rural multi-ethnic adults from 2009 to 2010. Four widely used criteria (ATPIII\IDF\JIS\CDS) were used to measure the prevalence of MetS. Multiple logistic regression analysis was used to explore the risk factors of MetS...
December 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29244538/associations-between-dietary-patterns-and-longitudinal-quality-of-life-changes-in-colorectal-cancer-patients-the-colocare-study
#18
Biljana Gigic, Heiner Boeing, Reka Toth, Jürgen Böhm, Nina Habermann, Dominique Scherer, Petra Schrotz-King, Clare Abbenhardt-Martin, Stephanie Skender, Hermann Brenner, Jenny Chang-Claude, Michael Hoffmeister, Karen Syrjala, Paul B Jacobsen, Martin Schneider, Alexis Ulrich, Cornelia M Ulrich
Quality of life (QoL) is an important clinical outcome in cancer patients. We investigated associations between dietary patterns and QoL changes in colorectal cancer (CRC) patients. The study included 192 CRC patients with available EORTC QLQ-C30 data before and 12 months post-surgery and food frequency questionnaire data at 12 months post-surgery. Principal component analysis was used to identify dietary patterns. Multivariate regression models assessed associations between dietary patterns and QoL changes over time...
January 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29244165/processing-conditions-and-endpoint-temperature-effects-on-development-of-pink-defect-without-pink-generating-ligands-in-cooked-ground-turkey-breast
#19
James R Claus, Jong Youn Jeong
This study was conducted to characterize the pink pigments associated with storing presalted (2%) and ground turkey breast trim at different processing conditions. Four treatments included: treatment (no NaCl, stored for 7 d before being cooked), treatment 2 (NaCl added and stored for 7 d before being cooked), treatment 3 (NaCl added and immediately cooked), and treatment 4 (stored for 7 d before NaCl added and cooked). All treatments were cooked to 4 endpoint temperatures (71.1, 73.9, 76.7, and 79.4°C). Processing conditions affected the pink defect in cooked ground turkey breast...
December 13, 2017: Poultry Science
https://www.readbyqxmd.com/read/29244085/effects-of-cold-exposure-on-physiology-meat-quality-and-behavior-of-turkey-hens-and-toms-crated-at-transport-density
#20
Z A Henrikson, C J Vermette, K Schwean-Lardner, T G Crowe
The impact of cold exposure while crated at a density characteristic of transport (83 kg/m2) was assessed in 12-wk-old turkey hens and 16-wk-old toms. Turkeys (72 toms, 72 hens) were randomly divided into 3 male and 3 female groups: 2 moderate 20°C groups with either 30% or 80% RH and a cold group exposed to -18°C, with uncontrolled, high RH. Groups of 8 birds (one replicate unit) were observed in a climate-controlled chamber for 8 h prior to slaughter. Core body temperature (CBT), live shrink, heterophil-lymphocyte ratio (HLR), and change in blood glucose levels were assessed; meat quality measures included thigh and breast muscle pH and L*, a*, and b* color values...
December 13, 2017: Poultry Science
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