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colorectal cancer, inflammatory bowel disease.

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https://www.readbyqxmd.com/read/28207290/fatty-acid-and-mineral-receptors-as-drug-targets-for-gastrointestinal-disorders
#1
Pawin Pongkorpsakol, Aekkacha Moonwiriyakit, Chatchai Muanprasat
Nutrient-sensing receptors, including fatty acid receptors (FFA1-FFA4), Ca(2+)-sensing receptors and Zn(2+)-sensing receptors, are involved in several biological processes. These receptors are abundantly expressed in the GI tract, where they have been shown to play crucial roles in regulating GI function. This review provides an overview of the GI functions of fatty acid and mineral receptors, including the regulation of gastric and enteroendocrine functions, GI motility, ion transport and cell growth. Recently, several lines of evidence have implicated these receptors as promising therapeutic targets for the treatment of GI disorders, for example, inflammatory bowel disease, colorectal cancer, metabolic syndrome and diarrheal diseases...
February 16, 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/28193514/microrna-301a-promotes-intestinal-inflammation-and-colitis-associated-cancer-development-by-inhibiting-btg1
#2
Chong He, Tianming Yu, Yan Shi, Caiyun Ma, Wenjing Yang, Leilei Fang, Mingming Sun, Wei Wu, Fei Xiao, Feifan Guo, Minhu Chen, Hong Yang, Jiaming Qian, Yingzi Cong, Zhanju Liu
BACKGROUND & AIMS: Intestinal tissues from patients with inflammatory bowel disease (IBD) and colorectal cancer have increased expression of microRNA-301a (MIR301A), compared to tissues from patients without IBD. We studied the mechanisms of MIR301A in progression of IBD in human tissues and mice. METHODS: We isolated intestinal epithelial cells (IECs) from colon biopsy samples of 153 patients with different stages of IBD activity, 6 patients with colitis-associated cancer (CAC), and 35 healthy individuals (controls), enrolled in the study in Shanghai, China...
February 10, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28175230/p709-inflammatory-bowel-disease-and-colorectal-cancer-analysis-of-a-single-center-retrospective-chart-review
#3
M Fragaki, M Bachlitzanaki, K Karmiris, A Theodoropoulou, E Vardas, G Paspatis
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172746/dop065-use-of-chromoendoscopy-versus-white-light-endoscopy-for-colorectal-cancer-surveillance-in%C3%A2-inflammatory-bowel-disease-patients-with-primary-sclerosing-cholangitis-a-six-year-experience
#4
K Hartery, K Williamson, R Chapman, N Atkinson, J East
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28165825/chemoprevention-of-colorectal-cancer-in-ulcerative-colitis-digging-deep-in-current-evidence
#5
Cristina Bezzio, Stefano Festa, Simone Saibeni, Claudio Papi
Patients with ulcerative colitis (UC) have an increased risk of developing colorectal cancer (CRC). Surveillance colonoscopy is currently recommended for patients with long-standing extensive colitis for reducing CRC risk. Chemoprevention is an attractive complementary strategy. Areas covered: Inflammation is a major determinant of CRC risk and is potentially modifiable. Reducing inflammation is supposed to reduce CRC risk. Several medications have been evaluated in this setting: 5-ASA, thiopurines, anti-TNFα agents and ursodeoxycholic acid (UCDA) in patients with associated primary sclerosing cholangitis (PSC)...
February 6, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28160571/the-oncoprotein-gankyrin-promotes-the-development-of-colitis-associated-cancer-through-activation-of-stat3
#6
Toshiharu Sakurai, Hiroaki Higashitsuji, Hiroshi Kashida, Tomohiro Watanabe, Yoriaki Komeda, Tomoyuki Nagai, Satoru Hagiwara, Masayuki Kitano, Naoshi Nishida, Takaya Abe, Hiroshi Kiyonari, Katsuhiko Itoh, Jun Fujita, Masatoshi Kudo
Although long-standing colonic inflammation due to refractory inflammatory bowel disease (IBD) promotes the development of colitis-associated cancer (CAC), the molecular mechanisms accounting for the development of CAC remains largely unknown. In this study, we investigated the role of gankyrin in the development of CAC since gankyrin is overexpressed in sporadic colorectal cancers. We analyzed gene expression of colon tissues obtained from 344 patients with IBD and CAC and found that expression of gankyrin was much higher in colonic mucosa of patients with refractory IBD than in those with IBD in remission...
February 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28155620/nlrp3-inhibitors-as-potential-therapeutic-agents-for-treatment-of-inflammatory-bowel-disease
#7
Agampodi Promoda Perera, Dale Kunde, Rajaraman Eri
BACKGROUND: Inflammatory bowel disease (IBD) is a group of intestinal disorders characterised by chronic relapsing inflammation of the small intestine and colon. IBD manifests as either ulcerative colitis or Crohn's disease and increases the risk of developing colorectal cancer. METHODS: Here, we have reviewed current treatment regimen for IBD utilising anti-inflammatory drugs, immune system suppressors and antibiotics or a combination of these. However, these therapeutics lead to a number of adverse effects, remission or significant non-responsiveness creating an urgent need to develop potent drugs with novel mechanisms of action for IBD...
February 1, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28147360/what-can-we-learn-from-epidemiological-studies-in-inflammatory-bowel-disease
#8
Dana Duricova
BACKGROUND: Population-based studies represent the whole spectrum of patient population and should represent the mainstay when evaluating patients' prognosis. A high number of CD patients need surgical intervention during the disease course. The disease course of inflammatory bowel diseases, including ulcerative colitis (UC) and Crohn's disease (CD), is quite varied and still quite unpredictable. Key Messages: According to earlier studies, up to 60% of patients undergo at least one operation after 10 years of CD duration...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28126349/full-spectrum-endoscopy-improves-surveillance-for-dysplasia-in-patients-with-inflammatory-bowel-diseases
#9
Rupert W Leong, Marie Ooi, Crispin Corte, Yunki Yau, Melissa Kermeen, Peter H Katelaris, Charles McDonald, Meng Ngu
BACKGROUND & AIMS: Inflammatory bowel diseases (IBD) increase the risk of colorectal cancer. Surveillance colonoscopy with chromoendoscopy is recommended, but conventional forward-viewing colonoscopy (FVC) detects dysplasia with low levels of sensitivity. Full-spectrum endoscopy (FUSE) incorporates 2 additional lateral cameras to the forward camera of the colonoscope, allowing endoscopists to view behind folds and in blind spots, which might increase dysplasia detection. We compared FUSE vs FVC in the detection of dysplasia in patients with IBD...
January 23, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28099821/medication-non-adherence-in-adult-patients-affected-by-inflammatory-bowel-disease-a-critical-review-and-update-of-the-determining-factors-consequences-and-possible-interventions
#10
Marco Vincenzo Lenti, Christian P Selinger
Achieving adherence to medications can be a serious challenge for patients affected by inflammatory bowel disease (IBD). Medical treatment is fundamental for inducing and maintaining remission, preventing flares and reducing the risk of colorectal cancer. Non-adherence may affect patients' quality of life resulting in unfavourable treatment outcomes, more hospitalizations and higher healthcare-related costs. Recognising and improving adherence is therefore a primary aim for the treatment of IBD. Areas covered: We critically discuss the current knowledge on medication non-adherence in adult patients affected by IBD, also mentioning a few issues concerning the paediatric and adolescent populations...
March 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28095263/chemoprevention-of-colorectal-cancer-in-inflammatory-bowel-disease
#11
Adam C Ehrlich, Shyam Patel, Andrew Meillier, Robin D Rothstein, Frank K Friedenberg
Patients with inflammatory bowel disease are at an increased risk of colorectal cancer when compared to the general population. Chronic inflammation is thought to be the underlying cause, and medications that reduce inflammation have the potential to reduce the risk of colorectal cancer. Areas covered: After conducting a PubMed search for relevant literature, we examined several classes of medications that have been studied as potential chemopreventive agents. These include 5-aminosalicylates, thiopurines, tumor necrosis factor antagonists, ursodeoxycholic acid, NSAIDs, and statins...
March 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28089726/hne-and-cholesterol-oxidation-products-in-colorectal-inflammation-and-carcinogenesis
#12
Daniela Rossin, Simone Calfapietra, Barbara Sottero, Giuseppe Poli, Fiorella Biasi
Consistent experimental data suggest the importance of inflammation-associated oxidative stress in colorectal cancer (CRC) pathogenesis. Inflammatory bowel disease with chronic intestinal inflammation is now considered a precancerous condition. Oxidative stress is an essential feature of inflammation. Activation of redox-sensitive pro-inflammatory cell signals and inflammatory mediators concur to establish a pro-tumoral environment. In this frame, lipid oxidation products, namely 4-hydroxynonenal and oxysterols, can be produced in big quantity so as to be able to exert their function as inducers of cell signaling pathways of proliferation and survival...
January 12, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28078646/mucosal-healing-in-ulcerative-colitis-a-comprehensive-review
#13
REVIEW
Pedro Boal Carvalho, José Cotter
Ulcerative colitis (UC) is a chronic inflammatory bowel disease characterized by periods of remission and periods of relapse. Patients often present with symptoms such as rectal bleeding, diarrhea and weight loss, and may require hospitalization and even colectomy. Long-term complications of UC include decreased quality of life and productivity and an increased risk of colorectal cancer. Mucosal healing (MH) has gained progressive importance in the management of UC patients. In this article, we review the endoscopic findings that define both mucosal injury and MH, and the strengths and limitations of the scoring systems currently available in clinical practice...
January 11, 2017: Drugs
https://www.readbyqxmd.com/read/28078433/a-meta-analysis-of-the-clinicopathological-characteristics-and-survival-outcomes-of-inflammatory-bowel-disease-associated-colorectal-cancer
#14
REVIEW
Ian S Reynolds, Aobhlinn O'Toole, Joseph Deasy, Deborah A McNamara, John P Burke
PURPOSE: The current study aims to use meta-analytical techniques to compare the clinicopathological characteristics and survival outcomes of inflammatory bowel disease (IBD) associated and sporadic colorectal carcinoma (CRC). Patients with IBD have an established increased risk of developing CRC. There is no consensus, however, on the clinicopathological characteristics and survival outcomes of IBD associated CRC when compared to sporadic CRC. METHODS: A comprehensive search for published studies comparing IBD associated and sporadic CRC was performed...
January 11, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28077799/kras-and-tp53-mutations-in-inflammatory-bowel-disease-associated-colorectal-cancer-a-meta-analysis
#15
Lijun Du, John J Kim, Jinhua Shen, Binrui Chen, Ning Dai
Although KRAS and TP53 mutations are common in both inflammatory bowel disease-associated colorectal cancer (IBD-CRC) and sporadic colorectal cancer (S-CRC), molecular events leading to carcinogenesis may be different. Previous studies comparing the frequency of KRAS and TP53 mutations in IBD-CRC and S-CRC were inconsistent. We performed a meta-analysis to compare the presence of KRAS and TP53 mutations among patients with IBD-CRC, S-CRC, and IBD without dysplasia. A total of 19 publications (482 patients with IBD-CRC, 4,222 with S-CRC, 281 with IBD without dysplasia) met the study inclusion criteria...
January 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28070659/diagnosis-treatment-and-consequences-of-anastomotic-leakage-in-colorectal-surgery
#16
Bodil Gessler, Olle Eriksson, Eva Angenete
PURPOSE: The aim of this study was to explore the choice of modality for diagnosis, treatments, and consequences of anastomotic leakage. METHODS: This is a retrospective study of consecutive patients who underwent surgery that included a colorectal anastomosis due to colorectal cancer, diverticulitis, inflammatory bowel disease (IBD), or benign polyps. RESULTS: A total of 600 patients were included during 2010-2012, and 60 (10%) had an anastomotic leakage...
January 9, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28070476/evaluating-screening-colonoscopy-quality-in-an-uninsured-urban-population-following-patient-navigation
#17
Keith Naylor, Cassandra Fritz, Blase Polite, Karen Kim
Patient navigation (PN) increases screening colonoscopy completion in minority and uninsured populations. However, colonoscopy quality is under-reported in the setting of PN and quality indicators have often failed to meet benchmark standards. This study investigated screening colonoscopy quality indicators after year-one of a PN initiative targeting the medically uninsured. This was a retrospective analysis of 296 outpatient screening colonoscopies. Patients were 45 to 75 years of age with no history of bowel cancer, inflammatory bowel disease, or colorectal surgery...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28066941/surveillance-for-dysplasia-in-patients-with-ulcerative-colitis-discrepancy-between-guidelines-and-practice
#18
Masaru Shinozaki, Kiyonori Kobayashi, Reiko Kunisaki, Tadakazu Hisamatsu, Makoto Naganuma, Kenichi Takahashi, Yasushi Iwao, Yasuo Suzuki, Mamoru Watanabe, Michio Itabashi, Akira Torii, Masakazu Takazoe, Akira Sugita
BACKGROUND AND AIM: The risk of developing colorectal cancer is higher in patients with ulcerative colitis (UC) than in the general population. Guidelines recommend surveillance colonoscopy (SCS) to reduce mortality; however, few studies have assessed physicians' adherence to guidelines. This study was aimed to clarify the current status of SCS and adherence to guidelines through the characteristics of cancer/dysplasia surveillance for UC patients in Japan. METHODS: A questionnaire was mailed to 541 physicians who attended meetings on inflammatory bowel disease...
January 9, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28062361/redox-signaling-in-the-gastrointestinal-tract
#19
REVIEW
Salvador Pérez, Raquel Taléns-Visconti, Sergio Rius-Pérez, Isabela Finamor, Juan Sastre
Redox signaling regulates physiological self-renewal, proliferation, migration and differentiation in gastrointestinal epithelium by modulating Wnt/β-catenin and Notch signaling pathways mainly through NADPH oxidases (NOXs). In the intestine, intracellular and extracellular thiol redox status modulates the proliferative potential of epithelial cells. Furthermore, commensal bacteria contribute to intestine epithelial homeostasis through NOX1- and dual oxidase 2-derived reactive oxygen species (ROS). The loss of redox homeostasis is involved in the pathogenesis and development of a wide diversity of gastrointestinal disorders, such as Barrett's esophagus, esophageal adenocarcinoma, peptic ulcer, gastric cancer, ischemic intestinal injury, celiac disease, inflammatory bowel disease and colorectal cancer...
March 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28050782/colorectal-cancer-in-inflammatory-bowel-diseases-a-population-based-study-in-utah
#20
N Jewel Samadder, John F Valentine, Stephen Guthery, Harminder Singh, Charles N Bernstein, Yuan Wan, Jathine Wong, Kenneth Boucher, Lisa Pappas, Kerry Rowe, Mary Bronner, Cornelia M Ulrich, Randall W Burt, Karen Curtin, Ken R Smith
BACKGROUND AND AIMS: The molecular, endoscopic, and histological features of IBD-associated CRC differ from sporadic CRC. The objective of this study was to describe the prevalence, clinical features, and prognosis of IBD-associated CRC compared to patients with sporadic CRC in a US statewide population-based cohort. METHODS: All newly diagnosed cases of CRC between 1996 and 2011 were obtained from Utah Cancer Registry. IBD was identified using a previously validated algorithm, from statewide databases of Intermountain Healthcare, University of Utah Health Sciences, and the Utah Population Database...
January 3, 2017: Digestive Diseases and Sciences
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