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https://www.readbyqxmd.com/read/29458155/determining-risk-of-colorectal-cancer-and-starting-age-of-screening-based-on-lifestyle-environmental-and-genetic-factors
#1
Jihyoun Jeon, Mengmeng Du, Robert E Schoen, Michael Hoffmeister, Polly A Newcomb, Sonja I Berndt, Bette Caan, Peter T Campbell, Andrew T Chan, Jenny Chang-Claude, Graham G Giles, Jian Gong, Tabitha A Harrison, Jeroen R Huyghe, Eric J Jacobs, Li Li, Yi Lin, Loïc Le Marchand, John D Potter, Flora Qu, Stephanie A Bien, Niha Zubair, Robert J Macinnis, Daniel D Buchanan, John L Hopper, Yin Cao, Reiko Nishihara, Gad Rennert, Martha L Slattery, Duncan C Thomas, Michael O Woods, Ross L Prentice, Stephen B Gruber, Yingye Zheng, Hermann Brenner, Richard B Hayes, Emily White, Ulrike Peters, Li Hsu
BACKGROUND & AIMS: Guidelines for initiating colorectal cancer (CRC) screening are based on family history but do not consider lifestyle, environmental, or genetic risk factors. We developed models to determine risk of CRC, based on lifestyle and environmental factors and genetic variants, and to identify an optimal age to begin screening. METHODS: We collected data from 9748 CRC cases and 10,590 controls in the Genetics and Epidemiology of Colorectal Cancer Consortium and the Colorectal Transdisciplinary study, from 1992 through 2005...
February 16, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29456806/women-with-hereditary-breast-cancer-predispositions-should-avoid-using-their-smartphones-tablets-and-laptops-at-night
#2
EDITORIAL
Seyed Ali Reza Mortazavi, Seyed Mohammad Javad Mortazavi
Breast cancer is the most common malignancy among women, both in the developed and developing countries. Women with mutations in the BRCA1 and BRCA2 genes have an increased risk of breast and ovarian cancers. Recent studies show that short-wavelength visible light disturb the secretion of melatonin and causes circadian rhythm disruption. We have previously studied the health effects of exposure to different levels of radiofrequency electromagnetic fields (RF-EMFs) such as mobile phones, mobile base stations, mobile phone jammers, laptop computers, and radars...
February 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29456745/sp5-negatively-regulates-the-proliferation-of-hct116-cells-by-upregulating-the-transcription-of-p27
#3
Masaya Miyamoto, Tomoatsu Hayashi, Yoshihiro Kawasaki, Tetsu Akiyama
The Wnt signaling pathway is aberrantly activated in the majority of human colorectal tumors. β-catenin, a key component of the Wnt signaling pathway, interacts with the T-cell factor/lymphoid enhancer-binding factor family of transcription factors and activates transcription of Wnt target genes. Sp5 is one of the Wnt target genes, and its expression is commonly upregulated in colon cancer cells. The present study demonstrates that the expression of Sp5 is not upregulated in the colon cancer cell line HCT116, in which Wnt signaling is constitutively activated...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456730/the-regulation-and-function-of-microrna-377-rassf8-signaling-axis-in-gastric-cancer
#4
Xiaobo Bo, Yusheng Chen, Weizhong Sheng, Yuda Gong, Haiyu Wang, Weidong Gao, Bo Zhang
Gastric cancer is a major cause of cancer-associated mortality worldwide. The aberrant expression of microRNA (miRNA) is involved in tumorigenesis. Ras proteins transfer information from the extracellular environment to internal cellular compartments and are essential in numerous signal transduction pathways. To investigate the regulation, function and clinical significance of the miRNA377/Ras association domain family (RASSF) 8 signaling axis in gastric cancer, reverse transcription-quantitative polymerase chain reaction, immunohistochemistry, cell counting kit-8, western blotting, and Transwell assays were used...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456668/fpoa-induces-the-apoptosis-of-hepg2-cells
#5
Mingjie Song, Haiying Bao, Tolgor Bau
The triterpenoid 3-acetoxylanosta-8,24-dien-21-oic acid (FPOA) is isolated from the fruiting body of Fomitopsis pinicola . The present study reports that FPOA exerts cytotoxic activity and describes the molecular mechanism of FPOA-induced apoptosis on human HepG2 hepatoma cells. FPOA exhibited significant cytotoxic effects against HepG2, MCF-7 and HeLa cells. However, FPOA was particularly cytotoxic towards HepG2 cells, with a half maximal inhibitory concentration value of 42.10 µM, thus these cells were taken forward for further analysis...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456621/men-seeking-counselling-in-a-breast-cancer-risk-evaluation-clinic
#6
Ana Catarina Freitas, Ana Opinião, Sofia Fragoso, Hugo Nunes, Madalena Santos, Ana Clara, Sandra Bento, Ana Luis, Jorge Silva, Cecília Moura, Bruno Filipe, Patrícia Machado, Sidónia Santos, Saudade André, Paula Rodrigues, Joana Parreira, Fátima Vaz
Background: Hereditary breast and ovary cancer syndrome affects both genders but little is known about the uptake of genetic services by men. The objective of this study is to characterise the male population counselled through a multidisciplinary breast/ovarian program. Methods: Descriptive analysis of male patients counselled from January 2000 to December 2015. Data in this analysis include new cancer diagnoses during prospective follow up. Results: From 4,320 families registered, 362 male patients were identified: 236 (65...
2018: Ecancermedicalscience
https://www.readbyqxmd.com/read/29456210/appraising-the-outcome-and-complications-of-peritoneal-dialysis-patients-in-self-care-peritoneal-dialysis-and-assisted-peritoneal-dialysis-a-5-year-review-of-a-single-saudi-center
#7
Jamal Saleh Al Wakeel, Mohammed A Al Ghonaim, Abdullah Aldohayan, Saira Usama, Saad Al Obaili, Ahmad R Tarakji, Mohammad Alkhowaiter
Our objective is to study the outcomes and complications of peritoneal dialysis (PD) including comparison of self-care PD with home-care assisted PD during a five-year period. A retrospective study of PD data at King Saud University-affiliated hospital in Riyadh from January 1, 2009, to December 31, 2013. One hundred and eleven patients were included (female 55%). The average age was 47.4 (1-83) years. Twenty-one (18.91%) patients were on continuous ambulatory PD and 90 (81.08%) on automated PD. The mean time on PD was 23...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29456181/an-ultraconserved-element-containing-lncrna-preserves-transcriptional-dynamics-and-maintains-esc-self-renewal
#8
Alessandro Fiorenzano, Emilia Pascale, Miriam Gagliardi, Sara Terreri, Mariarosaria Papa, Gennaro Andolfi, Marco Galasso, Guidantonio Malagoli Tagliazucchi, Cristian Taccioli, Eduardo Jorge Patriarca, Amelia Cimmino, Maria Rosaria Matarazzo, Gabriella Minchiotti, Annalisa Fico
Ultraconserved elements (UCEs) show the peculiar feature to retain extended perfect sequence identity among human, mouse, and rat genomes. Most of them are transcribed and represent a new family of long non-coding RNAs (lncRNAs), the transcribed UCEs (T-UCEs). Despite their involvement in human cancer, the physiological role of T-UCEs is still unknown. Here, we identify a lncRNA containing the uc.170+, named T-UCstem1, and provide in vitro and in vivo evidence that it plays essential roles in embryonic stem cells (ESCs) by modulating cytoplasmic miRNA levels and preserving transcriptional dynamics...
February 8, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29456091/frequency-of-human-papillomavirus-infection-in-patients-with-gastrointestinal-cancer
#9
F Roesch-Dietlen, A D Cano-Contreras, Y J Sánchez-Maza, J M Espinosa-González, M Á Vázquez-Prieto, E J Valdés-de la O, F Díaz-Roesch, M Á Carrasco-Arroniz, A Cruz-Palacios, P Grube-Pagola, A Sumoza-Toledo, H Vivanco-Cid, G Mellado-Sánchez, A Meixueiro-Daza, C S Silva-Cañetas, M G Carrillo-Toledo, R Lagunes-Torres, M Amieva-Balmori, P C Gómez-Castaño, J U Reyes-Huerta, J M Remes-Troche
INTRODUCTION AND AIM: Cancer is the result of the interaction of genetic and environmental factors. It has recently been related to viral infections, one of which is human papillomavirus. The aim of the present study was to describe the frequency of human papillomavirus infection in patients with digestive system cancers. MATERIALS AND METHODS: A prospective, multicenter, observational study was conducted on patients with gastrointestinal cancer at 2public healthcare institutes in Veracruz...
February 15, 2018: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/29455668/function-of-the-c-met-receptor-tyrosine-kinase-in-carcinogenesis-and-associated-therapeutic-opportunities
#10
REVIEW
Yazhuo Zhang, Mengfang Xia, Ke Jin, Shufei Wang, Hang Wei, Chunmei Fan, Yingfen Wu, Xiaoling Li, Xiayu Li, Guiyuan Li, Zhaoyang Zeng, Wei Xiong
c-Met is a receptor tyrosine kinase belonging to the MET (MNNG HOS transforming gene) family, and is expressed on the surfaces of various cells. Hepatocyte growth factor (HGF) is the ligand for this receptor. The binding of HGF to c-Met initiates a series of intracellular signals that mediate embryogenesis and wound healing in normal cells. However, in cancer cells, aberrant HGF/c-Met axis activation, which is closely related to c-Met gene mutations, overexpression, and amplification, promotes tumor development and progression by stimulating the PI3K/AKT, Ras/MAPK, JAK/STAT, SRC, Wnt/β-catenin, and other signaling pathways...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455667/role-of-non-receptor-tyrosine-kinases-in-hematological-malignances-and-its-targeting-by-natural-products
#11
REVIEW
Kodappully S Siveen, Kirti S Prabhu, Iman W Achkar, Shilpa Kuttikrishnan, Sunitha Shyam, Abdul Q Khan, Maysaloun Merhi, Said Dermime, Shahab Uddin
Tyrosine kinases belong to a family of enzymes that mediate the movement of the phosphate group to tyrosine residues of target protein, thus transmitting signals from the cell surface to cytoplasmic proteins and the nucleus to regulate physiological processes. Non-receptor tyrosine kinases (NRTK) are a sub-group of tyrosine kinases, which can relay intracellular signals originating from extracellular receptor. NRTKs can regulate a huge array of cellular functions such as cell survival, division/propagation and adhesion, gene expression, immune response, etc...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455659/receptor-tyrosine-kinases-and-downstream-pathways-as-druggable-targets-for-cancer-treatment-the-current-arsenal-of-inhibitors
#12
REVIEW
Wagner Ricardo Montor, Andrei Ronaldo Oliveira Silva Escartin Salas, Fabiana Henriques Machado de Melo
Searching for targets that allow pharmacological inhibition of cell proliferation in over-proliferative states, such as cancer, leads us to finely understand the complex mechanisms orchestrating the perfect control of mitosis number, frequency and pace as well as the molecular arrangements that induce cells to enter functional quiescence and brings them back to cycling in specific conditions. Although the mechanisms regulating cell proliferation have been described several years ago, never before has so much light been shed over this machinery as during the last decade when therapy targets have been explored and molecules, either synthetic or in the form of antibodies with the potential of becoming cancer drugs were produced and adjusted for specific binding and function...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455644/mir-19b-enhances-proliferation-and-apoptosis-resistance-via-the-egfr-signaling-pathway-by-targeting-pp2a-and-bim-in-non-small-cell-lung-cancer
#13
Ulrich Baumgartner, Fabienne Berger, Ali Hashemi Gheinani, Sabrina Sofia Burgener, Katia Monastyrskaya, Erik Vassella
BACKGROUND: Epidermal growth factor receptor (EGFR) mutations enable constitutive active downstream signaling of PI3K/AKT, KRAS/ERK and JAK/STAT pathways, and promote tumor progression by inducing uncontrolled proliferation, evasion of apoptosis and migration of non-small cell lung cancer (NSCLC). In addition, such EGFR mutations increase the susceptibility of patients with NSCLC to tyrosine kinase inhibitor (TKI) therapy, but treated patients will invariably relapse with resistant disease...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455393/mangiferin-inhibits-cell-migration-and-invasion-through-rac1-wave2-signalling-in-breast-cancer
#14
Qing Deng, Yan-Xiao Tian, JianJun Liang
Breast tumour progression results from the advancement of the disease to a metastatic phenotype. Rac1 and Cdc42 belong to the Rho family of genes that, together with their downstream effectors, Wiskott-Aldrich Syndrome protein-family verprolin-homologous protein 2 (WAVE2) and Arp2/3, assume a vital part in cytoskeletal rearrangement and the arrangement of film projections that advance malignant cell relocation and invasion. Mangiferin is a characteristic polyphenolic compound from Mangifera indica L. (Anacardiaceae), ordinarily referred to as mango, that is consumed worldwide as a natural product, including culinary and seasoning applications...
February 17, 2018: Cytotechnology
https://www.readbyqxmd.com/read/29455319/development-and-pilot-testing-of-a-decision-aid-for-genomic-research-participants-notified-of-clinically-actionable-research-findings-for-cancer-risk
#15
Amanda M Willis, Sian K Smith, Bettina Meiser, Mandy L Ballinger, David M Thomas, Martin Tattersall, Mary-Anne Young
Germline genomic testing is increasingly used in research to identify genetic causes of disease, including cancer. However, there is evidence that individuals who are notified of clinically actionable research findings have difficulty making informed decisions regarding uptake of genetic counseling for these findings. This study aimed to produce and pilot test a decision aid to assist participants in genomic research studies who are notified of clinically actionable research findings to make informed choices regarding uptake of genetic counseling...
February 17, 2018: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/29455302/patient-experiences-of-a-physiotherapy-led-multidisciplinary-rehabilitative-intervention-after-successful-treatment-for-oesophago-gastric-cancer
#16
A E Bennett, L O'Neill, D Connolly, E M Guinan, L Boland, S L Doyle, J O'Sullivan, J V Reynolds, J Hussey
PURPOSE: To qualitatively explore the perceived impact of a 12-week rehabilitative intervention for oesophago-gastric cancer survivors on their physical, mental and social wellbeing. METHODS: Of the 21 participants who completed the intervention, 19 took part in a semi-structured focus group interview. Four audio-taped focus groups were held, ranging in size from two to eight participants. Focus groups were transcribed and analysed using a descriptive qualitative approach...
February 18, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29455268/family-history-of-cancer-in-first-degree-relatives-and-risk-of-gastric-cancer-and-its-precursors-in-a-western-population
#17
Minkyo Song, M Constanza Camargo, Stephanie J Weinstein, Ana F Best, Satu Männistö, Demetrius Albanes, Charles S Rabkin
BACKGROUND: Family history may inform risks of gastric cancer and preneoplastic lesions. METHODS: We examined associations with history of cancer in first-degree relatives for 307 incident gastric cancer cases among 20,720 male smokers in a prospective study in Finland. Cox regression was used to calculate gastric cancer hazard ratios (HR) and 95% confidence intervals (95% CI). Logistic regression was used to estimate odds ratios (OR) and 95% CIs for low serum pepsinogen, a marker of gastric atrophy...
February 17, 2018: Gastric Cancer
https://www.readbyqxmd.com/read/29455175/when-a-polyp-is-not-a-polyp-incidental-finding-of-a-sigmoid-schwannoma-at-first-colonoscopic-screening
#18
Alexandra Leonard, Lezah P McCarthy, Danielle M Pastor
Schwannomas, peripheral nerve sheath tumours arising from Schwann cells, are often associated with inherited disorders such as neurofibromatosis. Gastrointestinal schwannomas, while rare, have been reported in those without personal or family history of neurofibromatosis. Diagnoses of these lesions, however, typically follow evaluations prompted by symptomatic presentations associated with abdominal pain, rectal bleeding, change in bowel habits or positive results on faecal occult blood tests performed for colorectal cancer screening...
February 17, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29455168/experiences-of-australian-men-diagnosed-with-advanced-prostate-cancer-a-qualitative-study
#19
Suzanne K Chambers, Melissa K Hyde, Kirstyn Laurie, Melissa Legg, Mark Frydenberg, Ian D Davis, Anthony Lowe, Jeff Dunn
OBJECTIVE: To explore men's lived experience of advanced prostate cancer (PCa) and preferences for support. DESIGN: Cross-sectional qualitative study applying open-ended surveys and interviews conducted between June and November 2016. Interviews audio-recorded and transcribed verbatim and analysed from an interpretive phenomenological perspective. SETTING: Australia, nation-wide. PARTICIPANTS: 39 men diagnosed with advanced PCa (metastatic or castration-resistant biochemical regression) were surveyed with 28 men subsequently completing a semistructured in depth telephone interview...
February 17, 2018: BMJ Open
https://www.readbyqxmd.com/read/29454982/improved-genomic-resources-and-new-bioinformatic-workflow-for-the-carcinogenic-parasite-clonorchis-sinensis-biotechnological-implications
#20
REVIEW
Daxi Wang, Pasi K Korhonen, Robin B Gasser, Neil D Young
Clonorchis sinensis (family Opisthorchiidae) is an important foodborne parasite that has a major socioeconomic impact on ~35 million people predominantly in China, Vietnam, Korea and the Russian Far East. In humans, infection with C. sinensis causes clonorchiasis, a complex hepatobiliary disease that can induce cholangiocarcinoma (CCA), a malignant cancer of the bile ducts. Central to understanding the epidemiology of this disease is knowledge of genetic variation within and among populations of this parasite...
February 15, 2018: Biotechnology Advances
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