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https://www.readbyqxmd.com/read/28238104/microbial-carcinogenic-toxins-and-dietary-anti-cancer-protectants
#1
REVIEW
Trevor W Stone, L Gail Darlington
Several toxins are known which account for the ability of some bacteria to initiate or promote carcinogenesis. These ideas are summarised and evidence is discussed for more specific mechanisms involving chymotrypsin and the bacterial chymotryptic enzyme subtilisin. Subtilisin and Bacillus subtilis are present in the gut and environment and both are used commercially in agriculture, livestock rearing and meat processing. The enzymes deplete cells of tumour suppressors such as deleted in colorectal cancer (DCC) and neogenin, so their potential presence in the food chain might represent an important link between diet and cancer...
February 25, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28236708/comparative-study-on-the-occurrence-of-polycyclic-aromatic-hydrocarbons-in-breast-milk-and-infant-formula-and-risk-assessment
#2
Serena Santonicola, Alessandra De Felice, Luigi Cobellis, Nicola Passariello, Angela Peluso, Nicoletta Murru, Maria Carmela Ferrante, Raffaelina Mercogliano
The study compared the polycyclic aromatic hydrocarbons (PAH) profile of human milk collected from Italian mothers and different brands of infant formula available on Italian market. Levels of 14 PAHs most frequently occurred in food, PAH markers listed by Commission Regulation (EC) No. 1881/2006, and carcinogenic PAHs classified by the International Agency for Research on Cancer, were determined by high-pressure liquid chromatography with fluorescence detector. The average concentrations of total PAHs were 114...
February 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28236470/effect-of-alcohol-and-its-metabolites-in-lung-cancer-capua-study
#3
Sara M Álvarez-Avellón, Ana Fernández-Somoano, Eva M Navarrete-Muñoz, Jesús Vioque, Adonina Tardón
BACKGROUND AND OBJECTIVE: Alcohol and its metabolites play an important role in carcinogenesis. This effect could be modulated by polymorphisms in genes encoding enzymes involved in the metabolism of alcohol and folate. Therefore, we analyzed the effect of alcohol consumption and ADH1B Arg48His, ADH1B Arg370Cys, ADH1C Ile349Val, ALDH2 Glu540Lys, CYP2E1 RsaI, CYP2E1 DraI, CYP2E1 TaqI and MTHFR C677T polymorphisms on the risk of developing lung cancer. PATIENTS AND METHODS: We included 876 lung cancer cases and 840 controls of the CAPUA hospital-based case-control study...
February 21, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28235658/sources-and-health-risks-of-polycyclic-aromatic-hydrocarbons-during-haze-days-in-eastern-china-a-1-year-case-study-in-nanjing-city
#4
Fuxing Kang, Xuewei Mao, Xiyu Wang, Jian Wang, Bing Yang, Yanzheng Gao
The concentrations of 16 priority polycyclic aromatic hydrocarbons (PAHs) in ambient air were investigated for a 1-year period to assess their sources and health risks during haze days in Nanjing City, eastern China. The highest level of total PAHs (∑16 PAHs) in the gaseous phase during the haze days was 18.0±13.3µg/m(3). Their sources may be attributable to pyrogenic products (55.2%), petrochemical refining industry (8.7%), and petrol volatilization (36.1%). The incremental lifetime cancer risk during the haze days exceeded or was close to the priority level of risk (10(-4)), indicating that PAH pollution during the haze days has caused public health problems associated with the respiratory system...
February 21, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28229328/physical-exercise-vegetable-and-fruit-intake-and-health-related-quality-of-life-in-chinese-breast-cancer-survivors-a-cross-sectional-study
#5
Xiao-Huan Gong, Ji-Wei Wang, Jiang Li, Xue-Fen Chen, Li Sun, Zheng-Ping Yuan, Jin-Ming Yu
INTRODUCTION: Breast cancer has long-term effects on health-related quality of life (HRQOL) of cancer survivors after treatment. Few research studies have focused on the association between health behaviors and HRQOL of Chinese breast cancer survivors (BCS). The aim of this study was to examine the separate and combined influence of physical exercise, vegetable and fruit intake on health-related quality of life of BCS. METHODS: A cross-sectional study was conducted among BCS from April to July 2013, in Shanghai, China...
February 22, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28226554/effects-of-a-non-thermal-plasma-needle-device-on-hpv-16-positive-cervical-cancer-cell-viability-in-vitro
#6
Hollie A Ryan, Johanna Neuber, Shutong Song, Stephen J Beebe, Chunqi Jiang, Hollie A Ryan, Johanna Neuber, Shutong Song, Stephen J Beebe, Chunqi Jiang, Shutong Song, Johanna Neuber, Chunqi Jiang, Stephen J Beebe, Hollie A Ryan
Non-thermal atmospheric pressure plasma has been demonstrated to inactivate a wide range of surface-dwelling pathogenic microorganisms including airborne viral particles, vegetative bacteria and bacterial spores. This shows the promise of plasma-based decontamination procedures for broad-spectrum sterilization and disinfection and promotes the in-depth and systematic study of how plasma treatment conditions relate to pathogen inactivation efficiency. A wide knowledge gap nonetheless exists regarding whether certain plasma parameters and exposure conditions can alter the resistance of virus-linked cancer cells to treatment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217247/dietary-factors-can-protect-against-liver-cancer-development
#7
EDITORIAL
Lemonica Koumbi
Liver cancer is the third leading cause of cancer mortality worldwide with hepatocellular carcinoma (HCC) representing more than 90% of primary liver cancers. Most HCC patients are also suffering from chronic liver disease (CLD). Evidence is emerging that the composition of diet plays an important role in HCC and CLD development and may also have a chemoprotective role. In contrast to other types of cancer, there are few studies investigating the role of diet in hepatocarcinogenesis. From the available data it is evident that high intakes of red meat and dietary sugar positively correlate with HCC occurrence...
January 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28214186/characteristics-and-prognosis-of-japanese-colorectal-cancer-patients-the-biobank-japan-project
#8
Akiko Tamakoshi, Koshi Nakamura, Shigekazu Ukawa, Emiko Okada, Makoto Hirata, Akiko Nagai, Koichi Matsuda, Yoichiro Kamatani, Kaori Muto, Yutaka Kiyohara, Zentaro Yamagata, Toshiharu Ninomiya, Michiaki Kubo, Yusuke Nakamura
BACKGROUND: Colorectal cancer is the third most common cancer worldwide, and in Japan, it is estimated that about 10% of men and 8% of women will be diagnosed with colorectal cancer during their lifetime. METHODS: We focused on 5864 participants (3699 men and 2165 women) who had colorectal cancer and were registered with BioBank Japan (BBJ) between April 2003 and March 2008. Characteristics of colon and rectal cancer patients were calculated separately. Among the enrolled patients registered in BBJ within 90 days after diagnosis, we also calculated the 5-year cumulative and relative survival rates, and estimated the effect of lifestyle factors on all-cause mortality...
February 15, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28204814/fisetin-regulates-astrocyte-migration-and-proliferation-in%C3%A2-vitro
#9
Nan Wang, Fang Yao, Ke Li, Lanlan Zhang, Guo Yin, Mingjun Du, Bingyi Wu
Fisetin (3,3',4',7-tetrahydroxyflavone) is a plant flavonol found in fruits and vegetables that has been reported to inhibit migration and proliferation in several types of cancer. Reactive astrogliosis involves astrocyte migration and proliferation, and contributes to the formation of glial scars in central nervous system (CNS) disorders. However, the effect of fisetin on the migration and proliferation of astrocytes remains unclear. In this study, we found that fisetin inhibited astrocyte migration in a scratch-wound assay and diminished the phosphorylation of focal adhesion kinase (FAK; Tyr576/577 and paxillin (Tyr118)...
February 15, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28202499/dietary-phytochemical-intake-from-foods-and-health-outcomes-a-systematic-review-protocol-and-preliminary-scoping
#10
Yasmine C Probst, Vivienne X Guan, Katherine Kent
INTRODUCTION: Dietary phytochemicals are found in plant-based foods such as fruits, vegetables and grains and may be categorised in a nested hierarchical manner with many hundred individual phytochemicals identified to date. To associate phytochemical intakes with positive health outcomes, a fundamental step is to accurately estimate the dietary phytochemical intake from foods reported. The purpose of this systematic review protocol is to describe the process to be undertaken to summarise the evidence for food-based dietary phytochemical intakes and health outcomes for adults...
February 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28199302/untimely-expression-of-gametogenic-genes-in-vegetative-cells-causes-uniparental-disomy
#11
H Diego Folco, Venkata R Chalamcharla, Tomoyasu Sugiyama, Gobi Thillainadesan, Martin Zofall, Vanivilasini Balachandran, Jothy Dhakshnamoorthy, Takeshi Mizuguchi, Shiv I S Grewal
Uniparental disomy (UPD), in which an individual contains a pair of homologous chromosomes originating from only one parent, is a frequent phenomenon that is linked to congenital disorders and various cancers. UPD is thought to result mostly from pre- or post-zygotic chromosome missegregation. However, the factors that drive UPD remain unknown. Here we use the fission yeast Schizosaccharomyces pombe as a model to investigate UPD, and show that defects in the RNA interference (RNAi) machinery or in the YTH domain-containing RNA elimination factor Mmi1 cause high levels of UPD in vegetative diploid cells...
February 15, 2017: Nature
https://www.readbyqxmd.com/read/28196848/gps-based-exposure-to-greenness-and-walkability-and-accelerometry-based-physical-activity
#12
Peter James, Jaime E Hart, J Aaron Hipp, Jonathan Mitchell, Jacqueline Kerr, Philip M Hurvitz, Karen Glanz, Francine Laden
BACKGROUND: Physical inactivity is a risk factor for cancer that may be influenced by environmental factors. Indeed, dense and well-connected built environments and environments with natural vegetation may create opportunities for higher routine physical activity. However, studies have focused primarily on residential environments to define exposure and self-reported methods to estimate physical activity. The current study explores the momentary association between minute-level global positioning systems (GPS)-based greenness exposure and time-matched objectively measured physical activity...
February 14, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28196110/ethnic-variation-in-medical-and-lifestyle-risk-factors-for-b-cell-non-hodgkin-lymphoma-a-case-control-study-among-israelis-and-palestinians
#13
Geffen Kleinstern, Rania Abu Seir, Riki Perlman, Areej Khatib, Ziad Abdeen, Husein Elyan, Ronit Nirel, Gail Amir, Asad Ramlawi, Fouad Sabatin, Paolo Boffetta, Eldad J Dann, Meirav Kedmi, Martin Ellis, Arnon Nagler, Dina Ben Yehuda, Ora Paltiel
BACKGROUND: Risk factors for B-cell non-Hodgkin lymphoma (B-NHL) have not been assessed among Palestinian Arabs (PA) and Israeli Jews (IJ). METHODS: In a case-control study we investigated self-reported medical and lifestyle exposures, reporting odds ratios (ORs) and 95% confidence intervals [CIs], by ethnicity, for overall B-NHL and subtypes. RESULTS: We recruited 823 cases and 808 healthy controls. Among 307 PA/516 IJ B-NHL cases (mean age at diagnosis = 51 [±17] versus 60 [±15] years, respectively) subtype distributions differed, with diffuse large B-cell lymphoma (DLBCL) being prominent among PA (71%) compared to IJ (41%); follicular lymphoma (FL), was observed in 14% versus 28%, and marginal zone lymphoma, in 2% versus 14%, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28187735/prognostic-value-of-alcohol-consumption-and-some-other-dietary-habits-for-survival-in-a-cohort-of-chinese-men-with-lung-cancer
#14
Wentao Li, Lap Ah Tse, Joseph S K Au, Kai Shing Yu, Feng Wang, Ignatius Tak-Sun Yu
BACKGROUND: Alcohol consumption and some other dietary habits are thought to be associated with lung cancer incidence. However, the effects of these habits on lung cancer prognosis have been studied rarely. The purpose of this study was to address these gaps in knowledge. METHODS: We studied a cohort of 1052 Chinese men in Hong Kong who were diagnosed with primary lung cancer. Cox proportional hazards models were used to determine the prognostic values of consumption of alcohol, fresh fruits or vegetables, meat, and fried or preserved food...
February 10, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28187725/long-term-effects-of-a-web-based-cancer-aftercare-intervention-on-moderate-physical-activity-and-vegetable-consumption-among-early-cancer-survivors-a-randomized-controlled-trial
#15
Iris M Kanera, Roy A Willems, Catherine A W Bolman, Ilse Mesters, Peter Verboon, Lilian Lechner
BACKGROUND: The number of cancer survivors is growing. Negative physical and psychosocial consequences of cancer treatment can occur during survivorship. Following healthy lifestyle recommendations is beneficial to increase quality of life and to reduce the risk of cancer recurrence and comorbidities. To meet individual needs, web-based interventions can supply a large population of cancer survivors with easily accessible and personalized information. Evidence concerning the long-term effects of web-based cancer aftercare interventions on lifestyle outcomes is limited...
February 10, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28186459/bioactivity-of-carotenoids-chasms-of-knowledge
#16
Torsten Bohn
Carotenoid dietary intake, especially within fruits/vegetables and their plasma levels have been associated in many epidemiological studies with a reduced risk of several chronic diseases, including type-2 diabetes, cardiovascular diseases, several types of cancer, and agerelated macular degeneration. However, intervention trials with isolated carotenoids (as supplements) have fallen short of fulfi lling the hopes that were placed in these lipophilic pigments, often producing no positive or even adverse effects, such as increased lung cancer rate or total mortality...
February 10, 2017: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
https://www.readbyqxmd.com/read/28176652/mechanisms-for-inhibition-of-colon-cancer-cells-by-sulforaphane-through-epigenetic-modulation-of-microrna-21-and-human-telomerase-reverse-transcriptase-htert-down-regulation
#17
Samantha L Martin, Rishabh Kala, Trygve O Tollefsbol
Epigenetic modulations such as histone modifications are becoming increasingly valued for their ability to modify genes without altering the DNA sequence. Many bioactive compounds have been shown to alter genetic and epigenetic profiles in various forms of 6 cancers. Of the many dietary phytochemicals, sulforaphane (SFN), found in cruciferous vegetables such as kale, cabbage and broccoli sprouts, has been present as one of the most potent (histone deacetylase) HDAC inhibitors to date. Recently, it has been 9 identified that HDAC inhibitors may play a vital role in regulating microRNAs (miRNAs) in many human cancers...
February 5, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28165394/socio-demographic-determinants-of-diet-quality-in-australian-adults-using-the-validated-healthy-eating-index-for-australian-adults-heifa-2013
#18
Amanda Grech, Zhixian Sui, Hong Ying Siu, Miaobing Zheng, Margaret Allman-Farinelli, Anna Rangan
Diet quality indices have been shown to predict cardiovascular disease, cancer, Type 2 Diabetes, obesity and all-cause mortality. This study aimed to determine the socio-demographics of Australian adults with poor diet quality. Diet quality was assessed for participants of the 2011-2012 National Nutrition and Physical Activity Survey aged 18 years or above (n = 9435), with the validated 11-component Healthy Eating Index for Australians (HEIFA-2013), based on the 2013 Australian Dietary Guidelines. Differences in scores by demographics (ANOVA) and regression models for associations between the HEIFA-2013 score and demographic characteristics were conducted...
February 4, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28161788/get-healthy-after-breast-cancer-examining-the-feasibility-acceptability-and-outcomes-of-referring-breast-cancer-survivors-to-a-general-population-telephone-delivered-program-targeting-physical-activity-healthy-diet-and-weight-loss
#19
S Lawler, G Maher, M Brennan, A Goode, M M Reeves, E Eakin
PURPOSE: This pilot study assessed the feasibility, acceptability and outcomes of referring breast cancer survivors to the 'Get Healthy Service' (GHS), a state health-funded 6-month telephone-delivered lifestyle program. METHODS: Pre-post study with eligible and consenting women following treatment for stages I-III breast cancer referred by nurses in a cancer treatment centre to the GHS. Feasibility was assessed via GHS uptake and completion; acceptability was assessed via patient satisfaction and nurse feedback...
February 4, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28161636/diallyl-trisulfide-a-chemopreventive-agent-from-allium-vegetables-inhibits-alpha-secretases-in-breast-cancer-cells
#20
Violet A Kiesel, Silvia D Stan
Breast cancer affects one in eight women throughout the course of their lifetime creating a demand for novel prevention strategies against this disease. The Notch signaling pathway is often aberrantly activated in human malignancies including breast cancer. Alpha secretases, including ADAM (A Disintegrin and Metalloprotease) -10 and -17, are proteases that play a key role in the cleavage of cell surface molecules and subsequent ligand-mediated activation of Notch signaling pathway. High expression levels of ADAM10 and 17 have been clinically associated with a lower disease-free survival in breast cancer patients...
February 2, 2017: Biochemical and Biophysical Research Communications
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