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https://www.readbyqxmd.com/read/28622686/alpha-glucosidase-inhibitor-use-is-associated-with-decreased-colorectal-neoplasia-risk-in-patients-with-type-2-diabetes-mellitus-receiving-colonoscopy-a-retrospective-study
#1
Yohei Horibe, Seiji Adachi, Tomohiko Ohno, Naoe Goto, Mitsuru Okuno, Midori Iwama, Osamu Yamauchi, Takao Kojima, Koshiro Saito, Takashi Ibuka, Ichiro Yasuda, Hiroshi Araki, Hisataka Moriwaki, Masahito Shimizu
PURPOSE: The purpose of this study was to clarify the factors that influence the incidence of colorectal neoplasia in patients with type 2 diabetes mellitus (DM). STUDY DESIGN AND SETTING: Among a total of 1176 patients who underwent total colonoscopy at our hospital, we retrospectively analyzed 168 patients with type 2 DM. Univariate and multivariate logistic regression analyses were then performed to identify the risk factors associated with colorectal neoplasia...
June 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28188977/lack-of-incremental-effect-of-histamine-receptor-antagonists-over-proton-pump-inhibitors-on-the-risk-of-neoplastic-progression-in-patients-with-barrett-s-esophagus-a-cohort-study
#2
Prashanthi N Thota, Kaveh Hajifathalian, Tanmayee Benjamin, Ashok Runkana, Rocio Lopez, Madhusudhan R Sanaka
AIMS: Long-term acid suppression lowers the risk of progression to esophageal adenocarcinoma (EAC) in patients with Barrett's esophagus (BE). With the recent reports about harmful effects of chronic proton pump inhibitor (PPI) use, there is renewed interest about alternative methods of acid suppression. Hence, our aim was to study the effect of H2 receptor antagonists (H2RA) on the risk of progression to neoplasia in our BE cohort. METHODS: This is a retrospective analysis of prospectively collected data of patients in our BE Registry from 2002 to 2015...
February 11, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28110571/-an-audit-of-the-hungarian-philadelphia-negative-chronic-myeloproliferative-neoplasia-registry-evaluation-of-the-essential-thrombocythaemic-patients
#3
Péter Dombi, Árpád Illés, Judit Demeter, Lajos Homor, Zsófia Simon, Miklós Udvardy, Éva Karádi, Ádám Kellner, Miklós Egyed
INTRODUCTION: In order to establish and use a national registry, several Hungarian hematology centers collected data of myeloproliferative neoplasia patients. AIM: The recent publication is an analysis of the data of registered essential thrombocythaemic patients. METHOD: an online electronic registry has been established, using 2008 World Health Organization's diagnostic criteria and thrombotic risk was evaluated according to Landolfi stratification...
January 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/27919915/chemoprevention-of-colorectal-cancer-in-individuals-with-previous-colorectal-neoplasia-systematic-review-and-network-meta-analysis
#4
REVIEW
Parambir S Dulai, Siddharth Singh, Evelyn Marquez, Rohan Khera, Larry J Prokop, Paul J Limburg, Samir Gupta, Mohammad Hassan Murad
OBJECTIVE:  To assess the comparative efficacy and safety of candidate agents (low and high dose aspirin, non-aspirin non-steroidal anti-inflammatory drugs (NSAIDs), calcium, vitamin D, folic acid, alone or in combination) for prevention of advanced metachronous neoplasia (that is, occurring at different times after resection of initial neoplasia) in individuals with previous colorectal neoplasia, through a systematic review and network meta-analysis. DATA SOURCES:  Medline, Embase, Web of Science, from inception to 15 October 2015; clinical trial registries...
December 5, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27859470/non-alcoholic-fatty-liver-diseases-and-risk-of-colorectal-neoplasia
#5
J S Ahn, D H Sinn, Y W Min, S N Hong, H S Kim, S-H Jung, S Gu, P-L Rhee, S W Paik, H J Son, G-Y Gwak
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is associated with colorectal neoplasia. Yet, NAFLD ranges from simple steatosis to steatohepatitis with advanced fibrosis. AIM: To investigate the risk of colorectal neoplasia according to the presence and severity of NAFLD. METHODS: A total of 26 540 asymptomatic adults who underwent same day first-time colonoscopy and abdominal ultrasonography as a health check-up programme were analysed...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27563018/the-role-of-common-pharmaceutical-agents-on-the-prevention-and-treatment-of-pancreatic-cancer
#6
REVIEW
Sunil Amin, Paolo Boffetta, Aimee L Lucas
Survival from pancreatic cancer remains poor. Conventional treatment has resulted in only marginal improvements in survival compared with survival in the previous several decades. Thus, considerable interest has emerged regarding the potential use of common pharmaceutical agents as chemopreventative and chemotherapeutic options. Aspirin, metformin, statins, β-blockers, and bisphosphonates have biologically plausible mechanisms to inhibit pancreatic neoplasia, whereas dipeptidyl-peptidase 4 inhibitors may promote it...
September 15, 2016: Gut and Liver
https://www.readbyqxmd.com/read/27189658/factors-predicting-adverse-events-associated-with-therapeutic-colonoscopy-for-colorectal-neoplasia-a-retrospective-nationwide-study-in-japan
#7
Ryota Niikura, Hideo Yasunaga, Atsuo Yamada, Hiroki Matsui, Kiyohide Fushimi, Yoshihiro Hirata, Kazuhiko Koike
BACKGROUND AND AIMS: Few large studies have evaluated the adverse events associated with therapeutic colonoscopy for colorectal neoplasia, including bleeding and bowel perforation. Our aim was to investigate factors associated with these events, using a Japanese national inpatient database. METHODS: We extracted data from the nationwide Japan Diagnosis Procedure Combination database for patients who underwent therapeutic colonoscopy for colorectal neoplasia between 2013 and 2014...
December 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/26957558/microrna-mir21-mir-21-and-ptgs2-expression-in-colorectal-cancer-and-patient-survival
#8
Kosuke Mima, Reiko Nishihara, Juhong Yang, Ruoxu Dou, Yohei Masugi, Yan Shi, Annacarolina da Silva, Yin Cao, Mingyang Song, Jonathan Nowak, Mancang Gu, Wanwan Li, Teppei Morikawa, Xuehong Zhang, Kana Wu, Hideo Baba, Edward L Giovannucci, Jeffrey A Meyerhardt, Andrew T Chan, Charles S Fuchs, Zhi Rong Qian, Shuji Ogino
PURPOSE: Prostaglandin-endoperoxide synthase 2 (PTGS2, cyclooxygenase-2; a target of aspirin) produces inflammatory mediator prostaglandin E2 (PGE2), and contributes to colorectal neoplasia development. PTGS2-driven inflammatory responses can induce tumor expression of microRNA MIR21 (miR-21) that can increase local PGE2 level by downregulating PGE2-metabolizing enzymes. We hypothesized that the prognostic association of tumor MIR21 expression level in colorectal carcinoma might depend on inflammatory tumor microenvironment and be stronger in tumors expressing high-level PTGS2...
August 1, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/26739617/predictors-of-advanced-colorectal-neoplasia-at-initial-and-surveillance-colonoscopy-after-positive-screening-immunochemical-faecal-occult-blood-test
#9
Edoardo Botteri, Cristiano Crosta, Vincenzo Bagnardi, Darina Tamayo, Angelica Maria Sonzogni, Giuseppe De Roberto, Annalisa de Leone, Albert Lowenfels, Patrick Maisonneuve
BACKGROUND: Characteristics such as gender and lifestyle are not taken in account in colorectal cancer screening and surveillance recommendations. AIMS: To identify factors associated with advanced neoplasia at initial and surveillance colonoscopy. METHODS: In this observational study, 750 individuals with positive faecal occult blood test, aged 50-74 years, underwent a first screening colonoscopy in 2007-2009. We collected anthropometric data as well as data on physical activity, smoking and drinking habits, fruit and vegetable consumption and low-dose aspirin use through a questionnaire...
March 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/26697360/tissue-specific-patterns-of-gene-expression-in-the-epithelium-and-stroma-of-normal-colon-in-healthy-individuals-in-an-aspirin-intervention-trial
#10
Sushma S Thomas, Karen W Makar, Lin Li, Yingye Zheng, Peiying Yang, Lisa Levy, Rebecca Y Rudolph, Paul D Lampe, Min Yan, Sanford D Markowitz, Jeannette Bigler, Johanna W Lampe, John D Potter
Regular aspirin use reduces colon adenoma and carcinoma incidence. UDP-glucuronosyltransferases (UGT) are involved in aspirin metabolism and clearance, and variant alleles in UGT1A6 have been shown to alter salicylic acid metabolism and risk of colon neoplasia. In a randomized, cross-over, placebo-controlled trial of 44 healthy men and women, homozygous for UGT1A6*1 or UGT1A6*2, we explored differences between global epithelial and stromal expression, using Affymetrix U133 + 2.0 microarrays and tested effects of 60-day aspirin supplementation (325 mg/d) on epithelial and stromal gene expression and colon prostaglandin E2 (PGE2) levels...
December 2015: Genomics Data
https://www.readbyqxmd.com/read/26686322/chemoprevention-of-colorectal-neoplasia
#11
Chris Wakeman, Jacqueline Keenan, Jimmy Eteuati, Paul Hollington, Tim Eglinton, Frank Frizelle
BACKGROUND: Colorectal cancer is a common and often fatal malignancy. Currently, the modifications that alter disease outcome include early symptom recognition, population screening as well as improved surgical and adjuvant treatments. Preventative strategies have been limited with little evidence that lifestyle changes significantly alter risk. There is however a growing awareness of a potential role for chemoprevention in some patient groups. This study aimed to review the literature associated with chemoprevention in colorectal cancer...
December 21, 2015: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/26584600/risk-of-advanced-adenomas-in-siblings-of-individuals-with-advanced-adenomas-a-cross-sectional-study
#12
MULTICENTER STUDY
Siew C Ng, James Y W Lau, Francis K L Chan, Bing Yee Suen, Yee Kit Tse, Aric J Hui, En Ling Leung-Ki, Jessica Y L Ching, Anthony W H Chan, Martin C S Wong, Simon S M Ng, Ka Fai To, Justin C Y Wu, Joseph J Y Sung
BACKGROUND & AIMS: The risk of colorectal neoplasms among siblings of patients with advanced adenomas is not clear. We determined the prevalence of advanced adenomas in the siblings of patients with advanced adenomas and compared it with that of siblings of individuals without these lesions. METHODS: In a blinded, cross-sectional study, colonoscopies were performed (from 2010 through 2014), at 2 hospitals in Hong Kong on 200 asymptomatic siblings of patients with advanced adenomas (exposed; mean age, 58...
March 2016: Gastroenterology
https://www.readbyqxmd.com/read/26557879/aspirin-in-the-21st-century-common-mechanisms-of-disease-and-their-modulation-by-aspirin-a-report-from-the-2015-scientific-conference-of-the-international-aspirin-foundation-28-august-london-uk
#13
Tom Smith, Pippa Hutchison, Karsten Schrör, Joan Clària, Angel Lanas, Paola Patrignani, Andrew T Chan, Farhat Din, Ruth Langley, Peter Elwood, Andrew Freedman, Ron Eccles
Professor Peter Rothwell of Oxford University chaired the annual Scientific Conference of the International Aspirin Foundation in London on 28 August 2015. It took the form of four sessions. Aspirin has more than one action in its effects on disease. Its acetylation of cyclooxygenase 2 (COX-2) in platelets leads to the blockade of pro-inflammatory chemicals and generation of anti-inflammatory mediators and increase in nitrous oxide (NO) production, which helps to preserve arterial endothelium. But platelets are not its only target...
2015: Ecancermedicalscience
https://www.readbyqxmd.com/read/26503631/spectral-biomarkers-for-chemoprevention-of-colonic-neoplasia-a-placebo-controlled-double-blinded-trial-with-aspirin
#14
RANDOMIZED CONTROLLED TRIAL
Hemant K Roy, Vladimir Turzhitsky, Ramesh Wali, Andrew J Radosevich, Borko Jovanovic, Gary Della'Zanna, Asad Umar, David T Rubin, Michael J Goldberg, Laura Bianchi, Mart De La Cruz, Andrej Bogojevic, Irene B Helenowski, Luz Rodriguez, Robert Chatterton, Silvia Skripkauskas, Katherine Page, Christopher R Weber, Xiaoke Huang, Ellen Richmond, Raymond C Bergan, Vadim Backman
OBJECTIVE: A major impediment to translating chemoprevention to clinical practice has been lack of intermediate biomarkers. We previously reported that rectal interrogation with low-coherence enhanced backscattering spectroscopy (LEBS) detected microarchitectural manifestations of field carcinogenesis. We now wanted to ascertain if reversion of two LEBS markers spectral slope (SPEC) and fractal dimension (FRAC) could serve as a marker for chemopreventive efficacy. DESIGN: We conducted a multicentre, prospective, randomised, double-blind placebo-controlled, clinical trial in subjects with a history of colonic neoplasia who manifested altered SPEC/FRAC in histologically normal colonic mucosa...
February 2017: Gut
https://www.readbyqxmd.com/read/26369679/new-insights-into-the-mechanism-of-action-of-aspirin-in-the-prevention-of-colorectal-neoplasia
#15
REVIEW
Luigia Di Francesco, Luilli Antonio López Contreras, Angela Sacco, Paola Patrignani
The results of clinical studies have shown that the chronic administration of aspirin, even at the lowdoses (75-100 mg daily) recommended for the prevention of cardiovascular disease, is associated with a reduction of cancer incidence and mortality, in particular colorectal cancer (CRC). The mechanism of action of aspirin as an antineoplastic agent remains controversial. However, data of clinical pharmacology and several features of the chemopreventive effect of aspirin, emerged from clinical trials, suggest that the antiplatelet effect of aspirin plays a central role in its anticancer effects...
2015: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/25927723/tissue-specific-patterns-of-gene-expression-in-the-epithelium-and-stroma-of-normal-colon-in-healthy-individuals-in-an-aspirin-intervention-trial
#16
RANDOMIZED CONTROLLED TRIAL
Sushma S Thomas, Karen W Makar, Lin Li, Yingye Zheng, Peiying Yang, Lisa Levy, Rebecca Yvonne Rudolph, Paul D Lampe, Min Yan, Sanford D Markowitz, Jeannette Bigler, Johanna W Lampe, John D Potter
BACKGROUND: Regular aspirin use reduces colon adenoma and carcinoma incidence. UDP-glucuronosyltransferases (UGT) are involved in aspirin metabolism and clearance, and variant alleles in UGT1A6 have been shown to alter salicylic acid metabolism and risk of colon neoplasia. METHODS: In a randomized, cross-over, placebo-controlled trial of 44 healthy men and women, homozygous for UGT1A6*1 or UGT1A6*2, we explored differences between global epithelial and stromal expression, using Affymetrix U133 + 2...
March 24, 2015: BMC Medical Genetics
https://www.readbyqxmd.com/read/25820865/assessing-individual-risk-for-high-risk-colorectal-adenoma-at-first-time-screening-colonoscopy
#17
Yin Cao, Bernard A Rosner, Jing Ma, Rulla M Tamimi, Andrew T Chan, Charles S Fuchs, Kana Wu, Edward L Giovannucci
Assessing risk of colorectal adenoma at first-time colonoscopy that are of higher likelihood of developing advanced neoplasia during surveillance could help tailor first-line colorectal cancer screening. We developed prediction models for high-risk colorectal adenoma (at least one adenoma ≥1 cm, or with advanced histology, or ≥3 adenomas) among 4,881 asymptomatic white men and 17,970 women who underwent colonoscopy as their first-time screening for colorectal cancer in two prospective US studies using logistic regressions...
October 1, 2015: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/25503930/sulindac-reversal-of-15-pgdh-mediated-resistance-to-colon-tumor-chemoprevention-with-nsaids
#18
Stephen P Fink, Dawn M Dawson, Yongyou Zhang, Adam Kresak, Earl G Lawrence, Peiying Yang, Yanwen Chen, Jill S Barnholtz-Sloan, Joseph E Willis, Levy Kopelovich, Sanford D Markowitz
Non-steroidal anti-inflammatory drugs prevent colorectal cancer by inhibiting cyclooxygenase (COX) enzymes that synthesize tumor-promoting prostaglandins. 15-hydroxyprostaglandin dehydrogenase (15-PGDH) is a tumor suppressor that degrades tumor-promoting prostaglandins. Murine knockout of 15-PGDH increases susceptibility to azoxymethane-induced colon tumors. It also renders these mice resistant to celecoxib, a selective inhibitor of inducible COX-2 during colon neoplasia. Similarly, humans with low colonic 15-PGDH are also resistant to colon adenoma prevention with celecoxib...
February 2015: Carcinogenesis
https://www.readbyqxmd.com/read/25501125/molecular-pathways-aspirin-and-wnt-signaling-a-molecularly-targeted-approach-to-cancer-prevention-and-treatment
#19
REVIEW
Manish K Gala, Andrew T Chan
The anti-inflammatory properties of aspirin have resulted in its widespread use as an analgesic, antipyretic, and cardioprotective agent. Beyond these applications, multiple observational studies and randomized controlled trials have demonstrated a chemopreventative role for aspirin, particularly in the development of colorectal neoplasia. Given the critical importance of Wnt dysregulation in colorectal carcinogenesis, the interplay between aspirin and canonical Wnt signaling has become a focus of investigation...
April 1, 2015: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/25293827/factors-associated-with-false-positive-and-false-negative-fecal-immunochemical-test-results-for-colorectal-cancer-screening
#20
Martin C S Wong, Jessica Y L Ching, Victor C W Chan, Thomas Y T Lam, Arthur K C Luk, Simon S M Ng, Joseph J Y Sung
BACKGROUND: Certain subgroups have higher rates of false fecal immunochemical test (FIT) results, yet few studies have addressed this topic. OBJECTIVE: To identify demographic factors associated with false-positive and false-negative FIT results in colorectal cancer screening. DESIGN: Retrospective database review of prospectively collected data. SETTING: A bowel cancer screening center in Hong Kong invited participants for colorectal cancer screening (2008-2012)...
March 2015: Gastrointestinal Endoscopy
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