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https://www.readbyqxmd.com/read/28107765/lower-adenoma-miss-rate-with-fuse-vs-conventional-colonoscopy-with-proximal-retroflexion-a-randomized-back-to-back-trial
#1
Ioannis S Papanikolaou, Periklis Apostolopoulos, Georgios Tziatzios, Erasmia Vlachou, Athanasios D Sioulas, Dimitrios Polymeros, Andreas Karameris, Ioannis Panayiotides, Georgios Alexandrakis, George D Dimitriadis, Konstantinos Triantafyllou
Background and study aims Full-spectrum colonoscopy (FSC) promises to increase adenoma detection by providing a wider field of view. The aim of this study was to compare adenoma miss rates of FSC with those of conventional colonoscopy complemented by right-colon re-examination using scope retroflexion (CC/R). Patients and methods At two tertiary endoscopy facilities, patients who were scheduled for colonoscopy for the assessment of symptoms or for colorectal cancer screening/surveillance were randomized (1:1) to undergo same-day, back-to-back colonoscopies (FSC or CC/R first), performed by one of five endoscopists who had documented adenoma detection rates > 35 %...
January 20, 2017: Endoscopy
https://www.readbyqxmd.com/read/28101757/final-report-of-kscc0803-feasibility-study-of-capecitabine-as-adjuvant-chemotherapy-for-stage-iii-colon-cancer-in-japan
#2
Kazuhito Minami, Masaru Morita, Yasunori Emi, Masahiro Okamoto, Eiji Tanaka, Shigeyuki Nagata, Tetsuo Touyama, Kippei Ohgaki, Takaho Tanaka, Hiroshi Okumura, Toyokuni Suenaga, Shoji Tokunaga, Eiji Oki, Yoshihiro Kakeji, Yoshito Akagi, Hideo Baba, Shoji Natsugoe, Yoshihiko Maehara
BACKGROUND: The impact of oral capecitabine as adjuvant chemotherapy for Japanese patients with resected colon cancer was unclear. We previously planned and conducted a prospective feasibility study (KSCC0803) and reported on the safety of oral capecitabine as adjuvant chemotherapy for Japanese patients with resected stage III colon cancer. The purpose of the current study was to assess the survival results from that study. METHODS: The study subjects were Japanese patients with resected stage III colon cancer...
January 18, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28089750/long-noncoding-rna-ccat2-can-predict-metastasis-and-poor-prognosis-a-meta-analysis
#3
REVIEW
Yang-Hua Fan, Hua Fang, Chen-Xing Ji, Huan Xie, Bing Xiao, Xin-Gen Zhu
BACKGROUND: It has been reported that Colon cancer-associated transcript 2 (CCAT2) is dysregulated in various cancers. We performed this meta-analysis to clarify its promising functions as a prognosis marker in malignant tumors. METHODS: Electronic databases, including PubMed, Medline, OVID, Cochrane Library, and Web of Science, were searched from inception to October 20, 2016. The hazard ratio (HR) and 95% confidence interval (CI) were calculated to explore the relationship between CCAT2 expression and survival, which were extracted from the eligible studies...
January 13, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28087510/effectiveness-of-flexible-sigmoidoscopy-screening-in-men-and-women-and-different-age-groups-pooled-analysis-of-randomised-trials
#4
Øyvind Holme, Robert E Schoen, Carlo Senore, Nereo Segnan, Geir Hoff, Magnus Løberg, Michael Bretthauer, Hans-Olov Adami, Mette Kalager
OBJECTIVE:  To compare the effectiveness of flexible sigmoidoscopy in screening for colorectal cancer by patient sex and age. DESIGN:  Pooled analysis of randomised trials (the US Prostate, Lung, Colorectal and Ovarian cancer screening trial (PLCO), the Italian Screening for Colon and Rectum trial (SCORE), and the Norwegian Colorectal Cancer Prevention trial (NORCCAP)). DATA SOURCES:  Aggregated data were pooled from each randomised trial on incidence of colorectal cancer and mortality stratified by sex, age at screening, and colon subsite (distal v proximal)...
January 13, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28078114/colorectal-cancer-anatomic-distribution-patterns-remain-the-same-after-sessile-serrated-adenoma-polyp-considered-cancer-precursor-a-9-year-comparison-study-from-community-based-endoscopy-centers
#5
Juliana F Yang, Amy E Noffsinger, Deepak Agrawal, Qing-Hua Yang
BACKGROUND: The overall incidence of colorectal cancer (CRC) in the United States has steadily decreased. However, the incidence of right-sided CRC remains unchanged for the past two decades. The serrated neoplastic pathway (sessile serrated adenoma/polyp, SSA/P) has been considered an important pathway of colorectal carcinogenesis, especially in the right-sided CRC. The aim of this study was to compare CRC anatomic distribution patterns in a 9-year interval in the general population before and after SSA/P was recognized and treated as a CRC precursor...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28077427/serum-trimethylamine-n-oxide-carnitine-choline-and-betaine-in-relation-to-colorectal-cancer-risk-in-the-alpha-tocopherol-and-beta-carotene-study
#6
Kristin A Guertin, Xinmin S Li, Barry I Graubard, Demetrius Albanes, Stephanie J Weinstein, James J Goedert, Zeneng Wang, Stanley L Hazen, Rashmi Sinha
BACKGROUND: TMAO, a choline-derived metabolite produced by gut microbiota, and its biomarker precursors have not been adequately evaluated in relation to colorectal cancer risk. METHODS: We investigated the relationship between serum concentrations of TMAO and its biomarker precursors (choline, carnitine and betaine) and incident colorectal cancer risk in a nested case-control study of male smokers in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study...
January 11, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28076249/fecal-immunochemical-test-fit-for-colon-cancer-screening-variable-performance-with-ambient-temperature
#7
Chyke A Doubeni, Christopher D Jensen, Stacey A Fedewa, Virginia P Quinn, Ann G Zauber, Joanne E Schottinger, Douglas A Corley, Theodore R Levin
INTRODUCTION: Fecal immunochemical tests (FITs) are widely used in colorectal cancer (CRC) screening, but hemoglobin degradation, due to exposure of the collected sample to high temperatures, could reduce test sensitivity. We examined the relation of ambient temperature exposure with FIT positivity rate and sensitivity. METHODS: This was a retrospective cohort study of patients 50 to 75 years in Kaiser Permanente Northern California's CRC screening program, which began mailing FIT kits annually to screen-eligible members in 2007...
November 2016: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/28065664/racial-differences-in-stage-iv-colorectal-cancer-survival-in-younger-and-older-patients
#8
Kristin Wallace, Allan DeToma, David N Lewin, Shaoli Sun, Don Rockey, Carolyn D Britten, Jennifer D Wu, Aissatou Ba, Anthony J Alberg, Elizabeth G Hill
INTRODUCTION: African Americans (AAs) compared with European Americans (EAs) have poorer stage-specific survival from colorectal cancer (CRC). Recent reports have indicated that the racial difference in survival has worsened over time, especially among younger patients. To better characterize this association, we used population-based Surveillance, Epidemiology, and End Results registry data to evaluate the effect of race on stage IV CRC survival in patients aged < 50 and ≥ 50 years...
December 7, 2016: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28064442/tumor-derived-spheroids-relevance-to-cancer-stem-cells-and-clinical-applications
#9
REVIEW
Tatsuya Ishiguro, Hirokazu Ohata, Ai Sato, Kaoru Yamawaki, Takayuki Enomoto, Koji Okamoto
Recently, many types of in vitro three-dimensional (3D) culture systems have been developed to recapitulate the in vivo growth conditions of cancer. The cancer 3D culture methods aim to preserve the biological characteristics of original tumors better than conventional two-dimensional (2D) monolayer cultures, and include tumor-derived organoids, tumor-derived spheroids, organotypic multicellular spheroids, and multicellular tumor spheroids. The 3D culture methods differ in terms of cancer cell sources, protocols for cell handling, and the required time intervals...
January 8, 2017: Cancer Science
https://www.readbyqxmd.com/read/28064440/dietary-fibre-for-the-prevention-of-recurrent-colorectal-adenomas-and-carcinomas
#10
REVIEW
Yibo Yao, Tao Suo, Roland Andersson, Yongqing Cao, Chen Wang, Jingen Lu, Evelyne Chui
BACKGROUND: This is an update of the Cochrane review published in 2002.Colorectal cancer (CRC) is a major cause of morbidity and mortality in industrialised countries. Experimental evidence has supported the hypothesis that dietary fibre may protect against the development of CRC, although epidemiologic data have been inconclusive. OBJECTIVES: To assess the effect of dietary fibre on the recurrence of colorectal adenomatous polyps in people with a known history of adenomatous polyps and on the incidence of CRC compared to placebo...
January 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28062130/-municipal-distribution-of-the-incidence-of-the-most-common-tumours-in-an-area-with-high-cancer-mortality
#11
Manuel Jesús Viñas Casasola, Pablo Fernández Navarro, María Luisa Fajardo Rivas, José Luis Gurucelain Raposo, Juan Alguacil Ojeda
OBJECTIVE: To describe the geographic distribution patterns of the municipal incidence of the most common tumours in the Huelva province (Spain) as compared to the estimated incidence for all of Spain. METHODS: Relative risk (RR) was computed based on the conditional autoregressive model proposed by Besag, York and Mollié by applying the INLA tool to the cancer data for 2007-2011 for the following tumour locations: colon, rectum and anus (men and women); trachea, bronchia, and lungs, prostate and bladder in men; and breasts in women...
January 3, 2017: Gaceta Sanitaria
https://www.readbyqxmd.com/read/28054189/endoscopic-stenting-does-not-worsen-long-term-outcomes-amongst-patients-presenting-with-obstruction-from-colorectal-cancers
#12
Tian-Zhi Lim, Dedrick Kok Hong Chan, Ker-Kan Tan
BACKGROUND: Stenting has been increasingly adopted in colorectal cancer patients presenting with acute large bowel obstruction. However, long-term outcomes of stenting are lacking in the literature. Our study attempts to compare the long-term outcomes of colonic stenting and emergency surgery amongst left-sided colorectal cancer patients presenting with acute large bowel obstruction. METHODS: A retrospective review of all patients who presented with nonmetastatic colorectal cancer who underwent either endoscopic stenting or emergency surgery for acute large bowel obstruction was performed from January 2007 to April 2016...
January 4, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28050135/the-risk-of-colorectal-cancer-is-not-increased-after-a-diagnosis-of-urothelial-cancer-a-population-based-study
#13
C H Harlos, H Singh, Z Nugent, A Demers, S M Mahmud, P M Czaykowski
BACKGROUND: The data about whether patients with a prior urothelial cancer (uca) are at increased risk of colorectal cancer (crc) are conflicting. We used a competing risks analysis to determine the risk of crc after uca. METHODS: Historical cohorts were assembled by record linkage of Manitoba Cancer Registry and Manitoba Health databases. The incidence of crc for individuals with uca as their first cancer between 1987 and 2009 was compared with the incidence for randomly selected age-and sex-matched individuals without a cancer diagnosis at the index date (uca diagnosis date)...
December 2016: Current Oncology
https://www.readbyqxmd.com/read/28044213/polymorphisms-of-mthfr-c677t-and-a1298c-associated-with-survival-in-patients-with-colorectal-cancer-treated-with-5-fluorouracil-based-chemotherapy
#14
Chih-Ching Yeh, Ching-Yu Lai, Shih-Ni Chang, Ling-Ling Hsieh, Reiping Tang, Fung-Chang Sung, Yi-Kuei Lin
BACKGROUND: This study examined the association between methylenetetrahydrofolate reductase (MTHFR) polymorphisms and survival of patients with colorectal cancer (CRC) treated with 5-fluorouracil (5-FU)-based chemotherapy in Taiwan. METHODS: We genotyped MTHFR polymorphisms C677T (rs1801133) and A1298C (rs1801131) for 498 CRC patients treated with 5-FU-based chemotherapy after receiving surgery. Survival analyses on MTHFR polymorphisms were performed using log-rank test and Kaplan-Meier curve...
January 2, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28041974/low-expression-of-rassf10-is-associated-with-poor-survival-in-patients-with-colorectal-cancer
#15
Fei Wang, Peng Li, Ying Feng, Yi-Lin Hu, Yi-Fei Liu, Yi-Bing Guo, Xin-Lin Jiang, Qin-Sheng Mao, Wan-Jiang Xue
The Ras-association domain family member 10 (RASSF10) has been identified as a tumor suppressor in human colorectal cancer (CRC). However, the expression of RASSF10 in patients with CRC has not been evaluated for its potential use as a biomarker in the diagnosis and prognosis assessment of CRC. We analyzed the expression of RASSF10 mRNA (n=30) and protein (n=205) in CRC and matched non-cancerous colon tissue samples to explore the relationships among RASSF10 expression, clinical pathological factors, and prognosis in patients with CRC...
December 29, 2016: Human Pathology
https://www.readbyqxmd.com/read/28040692/prognostic-value-of-braf%C3%A2-and%C3%A2-kras%C3%A2-mutations-in-msi-and-mss-stage-iii-colon-cancer
#16
Julien Taieb, Karine Le Malicot, Qian Shi, Frédérique Penault Lorca, Olivier Bouché, Josep Tabernero, Enrico Mini, Richard M Goldberg, Gunnar Folprecht, Jean Luc Van Laethem, Daniel J Sargent, Steven R Alberts, Jean Francois Emile, Pierre Laurent Puig, Frank A Sinicrope
BACKGROUND: The prognostic value of BRAF and KRAS mutations within microsatellite-unstable (MSI) and microsatellite-stable (MSS) subgroups of resected colon carcinoma patients remains controversial. We examined this question in prospectively collected biospecimens from stage III colon cancer with separate analysis of MSI and MSS tumors from patients receiving adjuvant FOLFOX +/- cetuximab in two adjuvant therapy trials. METHODS: Three groups were defined: BRAF Mutant, KRAS Mutant, and double wild-type...
May 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28040638/consumption-of-lake-ontario-sport-fish-and-the-incidence-of-colorectal-cancer-in-the-new-york-state-angler-cohort-study-nysacs
#17
Catherine L Callahan, John E Vena, Joseph Green, Mya Swanson, Lina Mu, Matthew R Bonner
Fish consumption is hypothesized to reduce the risk of colorectal cancer. Nonetheless, consuming sport fish from the Great Lakes increases exposure to certain persistent organic pollutants, namely polychlorinated biphenyls (PCBs) and organochlorine insecticides, which may increase the risk of cancer. Evidence that exposure to persistent organic pollutants is associated with colorectal cancer is sparse. We examined colorectal cancer incidence in the New York State Angler Cohort Study (NYSACS), a prospective cohort of 17,110 anglers and spouses age 18-40 years at enrollment...
December 29, 2016: Environmental Research
https://www.readbyqxmd.com/read/28039328/outcome-of-24%C3%A2-years-national-surveillance-in-different-hereditary-colorectal-cancer-subgroups-leading-to-more-individualised-surveillance
#18
Lars Joachim Lindberg, Steen Ladelund, Birgitte Lidegaard Frederiksen, Lars Smith-Hansen, Inge Bernstein
BACKGROUND: Individuals with hereditary non-polyposis colorectal cancer (HNPCC) have a high risk of colorectal cancer (CRC). The benefits of colonic surveillance in Lynch syndrome and Amsterdam-positive (familial CRC type X familial colorectal cancer type X (FCCTX)) families are clear; only the interval between colonoscopies is debated. The potential benefits for families not fulfilling the Amsterdam criteria are uncertain. The aim of this study was to compare the outcome of colonic surveillance in different hereditary subgroups and to evaluate the surveillance programmes...
December 30, 2016: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28035461/is-early-colonoscopy-after-ct-diagnosed-diverticulitis-still-necessary
#19
Thomas Surya Suhardja, Shana Norhadi, Edward Zhenyu Seah, Stephen Rodgers-Wilson
PURPOSE: WHO GLOBOCAN 2012 data showed that Australia and New Zealand have the highest incidence rates of colorectal cancer in the world (Ferlay et al. 1). Current guidelines recommend that patients admitted for an episode of acute diverticulitis require an early follow-up colonoscopy to rule out colorectal malignancy as reported by Fozard et al. (Colorectal Dis 13:1-11, 2011). Recent studies however have indicated that this may not be warranted (Brar et al. Dis Colon rectum 56:1259-1264, 2013)...
December 29, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28031717/association-between-tlr-9-polymorphisms-and-colon-cancer-susceptibility-in-saudi-arabian-female-patients
#20
Abdelhabib Semlali, Narasimha Reddy Parine, Abdullah Al Amri, Arezki Azzi, Maha Arafah, Muhammad Kohailan, Jilani P Shaik, Majid Abdulrahman Almadi, Abdulrahman M Aljebreen, Othman Alharbi, Nahla Ali Azzam, Mahmoud Rouabhia, Mohammad Saud Alanazi
OBJECTIVE: The authors aimed to explore the relationship between the expression/polymorphisms of TLR-9 and susceptibility to colon cancer development in the Saudi Arabian population. METHODS: In total, blood samples from 115 patients with colon cancer and 102 participants without colon cancer were analyzed in this study. Three single-nucleotide polymorphisms (SNPs) were selected from the TLR-9 gene, including two sites within the TLR-9 gene's promoter region (rs352144 and rs187084) and one site in a TLR-9 intron region (rs5743839)...
2017: OncoTargets and Therapy
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