Orientin, a flavanoid, mitigates 1, 2 dimethylhydrazine-induced colorectal lesions in Wistar rats fed a high-fat diet

Publication date: Available online 27 September 2018Source: Toxicology ReportsAuthor(s): Kalaiyarasu Thangaraj, Karthi Natesan, Mariyappan Palani, Manju VaiyapuriAbstractOrientin, a c- glycosyl flavonoid found copiously in roobios tea and various medicinal plants is well known for its antioxidant, anti-inflammatory, and antitumor effects. The present study aims to investigate the anti-cancer efficacy of orientin on 1,2 dimethyl hydrazine induced colonic aberrant crypt foci (ACF) and cell proliferation in Wistar rats. Rats were randomly divided into six groups and fed with high fat diet. Group 1 left as untreated control. Group 2 administered with DMH (20 mg/kg body weight) for initial 4 weeks and left untreated. Group 3 received orientin (10 mg/kg body weight) alone for the entire period. Group 4 received orientin along with DMH for initial 4 weeks and left untreated; Group 5 administered DMH for initial 4 weeks and treated with orientin for remaining 12 weeks; Group 6 administered DMH and treated with orientin throughout the entire period. Our preclinical findings suggest that the administration of orientin decreases the occurrence of DMH induced colonic polyps and aberrant crypt foci, augments antioxidant defense and altered the activities of drug metabolizing phase I and phase II enzymes in colonic and hepatic tissues and thereby ensuring the detoxification of carcinogen. Furthermore, orientin attenuates the aberrant crypt foci formation and reinstates the DM...
Source: Toxicology Reports - Category: Toxicology Source Type: research

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The sequence of events leading to the development of colorectal cancer, currently the third most common malignancy in Western countries, is effectively disrupted by the resection of its precursor lesions. Colonoscopy is the mainstay in lesion detection, and endoscopic polypectomy is the conventional therapeutic response for the overwhelming majority of identified polyps. Approximately 2% of lesions are larger (>20  mm) and are laterally spreading lesions (LSLs). EMR is considered the standard of care for the majority of these because it has been proved to be safer, less resource-intensive, and less expensive than surgery.
Source: Gastrointestinal Endoscopy - Category: Gastroenterology Authors: Tags: Original article Source Type: research
ConclusionThe fluorescent marking clips were easily placed and recognized with a fluorescent laparoscope. This method is expected to be safe and risks of accidental puncture related to tattoo marking method can be reduced or almost eliminated.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
ConclusionsTherapeutic decision-making according to SCI or AEI can reduce surgery for endoscopically resectable colorectal neoplasms.
Source: Digestive Diseases and Sciences - Category: Gastroenterology Source Type: research
Medtronic is taking some very big steps with artificial intelligence. The Dublin-based company is launching GI Genius – a system it said is the first to use AI to detect colorectal polyps. The product’s launch is taking place during United European Gastroenterology Week in Barcelona, Spain. GI Genius was developed by Cosmo Pharmaceuticals and has CE mark. Medtronic is bringing the solution to the market through a distribution agreement with the Dublin-based Cosmo Pharmaceuticals. The GI Genius module uses advanced artificial intelligence to highlight the presence of pre-cancerous lesions...
Source: MDDI - Category: Medical Devices Authors: Tags: Digital Health Source Type: news
ConclusionThe fusion fascia of Fredet is useful to achieve CME and D3-L in right colon cancers with reduced risk of intraoperative complications. This structure is particularly suitable for minimally invasive surgery; therefore, we encourage awareness of the fascia of Fredet by colorectal surgeons.
Source: Surgical Endoscopy - Category: Surgery Source Type: research
Conclusions: We suggested that GB polyps are associated with proximal colon polyps. Colonoscopy may be a more effective strategy for screening proximal precancerous lesions among patients with GB polyps. The association between GB disease and colon polyps demands further prospective investigation. PMID: 31611916 [PubMed]
Source: Gastroenterology Research and Practice - Category: Gastroenterology Tags: Gastroenterol Res Pract Source Type: research
Colon polyp surveillance now accounts for 25% of all colonoscopies performed. The evidence that colonoscopy surveillance reduces colorectal cancer (CRC) incidence or mortality is weak. The biology of the baseline lesions and quality of the baseline exam are two primary factors contributing to post-colonoscopy CRC. Prior recommendations for surveillance were based largely on the likelihood that patients with adenomas would develop advanced adenomas, a surrogate for CRC. There is now evidence that baseline colonoscopy findings are strongly associated with the risk of incidence or death from CRC.
Source: Gastroenterology - Category: Gastroenterology Authors: Source Type: research
Abstract Colorectal cancer is one of the deadliest cancers worldwide. Effective screening, surveillance, and prevention can decrease its incidence, mortality and burden. This meta-analysis aims to provide a pooled estimation of 5-year survival rate for colorectal cancer based on topography codes and treatment in Iranian population. A systematic search for literature was done in international and national databases up to July 2018. Twenty-seven studies from 4929 articles met the eligible criteria. The overall pooled 5-year survival rate of colorectal cancer, colon, rectal and sigmoid were estimated 56% (95% CI: 49,...
Source: Neoplasma - Category: Cancer & Oncology Authors: Tags: Neoplasma Source Type: research
ConclusionsA focused training intervention was associated with a strong trend toward increased ADRs among certified endoscopists. While the described training interventions definitely show promise, further efforts around continuing professional developments activities are needed to more consistently improve ADRS among certified endoscopists.
Source: Surgical Endoscopy - Category: Surgery Source Type: research
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Source: Trials - Category: Research Source Type: clinical trials
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