http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Tests for hidden traces of blood ("occult blood") in the stool provide clues to colon cancer or precancerous lesions. For over 40 years, an enzymatic detection method has been used to detect the diseases. Now immunological tests have also become available. Epidemiologists from the German Cancer Research Center compared the two methods and have proven the superiority of immunological tests. They detect more than twice as many cancer cases and deliver fewer false positive results. http://medicalxpress.com/news/2013-05-colon-cancer-screening-immunological-superior.html Cancer Tue, 28 May 2013 10:06:20 EST news288954373 Obese men were more likely to have precancerous lesions detected in their benign prostate biopsies compared with non-obese men, and were at a greater risk for subsequently developing prostate cancer, according to researchers at Columbia University's Mailman School of Public Health. The findings will be published online in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research. http://medicalxpress.com/news/2013-04-obese-men-high-prostate-cancer.html Cancer Tue, 23 Apr 2013 13:46:34 EST news285943587 Head and neck cancers typically begin in squamous cells that line moist surfaces inside the mouth, nose and throat. Squamous cell carcinoma of the head and neck (HNSCC) is the sixth most common type of cancer in the United States, and it is sometimes preceded by the appearance of changes inside the oral cavity called precancerous lesions. The most common type of change is a white patch known as a leukoplakia. Because it often takes decades for leukoplakias to develop into HNSCC, there is a window of opportunity to recognize and revert precancerous changes, thus preventing this type of cancer. http://medicalxpress.com/news/2013-04-drug-neck-cancers.html Cancer Tue, 09 Apr 2013 09:35:39 EST news284718932 Colon cancer develops slowly. Precancerous lesions usually need many years to turn into a dangerous carcinoma. They are well detectable in an endoscopic examination of the colon called colonoscopy and can be removed during the same examination. Therefore, regular screening can prevent colon cancer much better than other types of cancer. Since 2002, colonoscopy is part of the national statutory cancer screening program in Germany for all insured persons aged 55 or older. http://medicalxpress.com/news/2013-03-safety-colonoscopy.html Cancer Fri, 01 Mar 2013 12:07:54 EST news281361995 (Medical Xpress)—A new drug combination shows promise in reducing the risk for patients with advanced oral precancerous lesions to develop squamous cell carcinoma of the head and neck. The results of the study, which included preclinical and clinical analyses, were published in Clinical Cancer Research, a journal of the American Association for Cancer Research. http://medicalxpress.com/news/2013-02-drug-combination-neck-cancer-high-risk.html Cancer Tue, 19 Feb 2013 14:10:01 EST news280504253 A new analysis has found that loading up on snack foods may increase cancer risk in individuals with an inborn susceptibility to colorectal and other cancers. Published early online in CANCER, a peer-reviewed journal of the American Cancer Society, the study suggests that an eating pattern low in snack foods could help these individuals—who have a condition called Lynch syndrome—lower their risk. http://medicalxpress.com/news/2012-12-snack-unhealthy-foods-affect-cancer.html Cancer Mon, 17 Dec 2012 00:00:01 EST news274903038 The causes underlying the development of certain types of common cancers have not yet been elucidated. In order to better determine the origin and the sequence of events responsible for the onset of colon cancer, the teams led by Thanos Halazonetis and Stylianos Antonarakis, professors at the University of Geneva (UNIGE), Switzerland, have sequenced the DNA of biopsied tissue from colon polyps. The results show that these precancerous lesions have a specific profile called 'mutator', which is associated with an increased frequency of acquisition of certain mutations. http://medicalxpress.com/news/2012-12-mechanism-colon-polyps.html Cancer Sun, 02 Dec 2012 02:22:43 EST news273637341 Use of colonoscopy for colorectal cancer screening could explain a significant decrease in the cancer's incidence over the past decade, according to a new study from researchers at the Stanford University School of Medicine. Although colonoscopy is now the most common colorectal cancer screening method, there has been conflicting evidence as to its effectiveness compared with sigmoidoscopy, a method that examines only a portion of the colon. http://medicalxpress.com/news/2012-10-colonoscopy-screening-decrease-colorectal-cancer.html Cancer Tue, 23 Oct 2012 15:52:31 EST news270226331 The compound licofelone inhibited oral cancer growth by inhibiting the cyclooxygenase and 5-lipoxygenase pathways, with no observable side effects, according to data from a rat study presented at the 11th Annual AACR International Conference on Frontiers in Cancer Prevention Research, held here Oct. 16-19, 2012. http://medicalxpress.com/news/2012-10-compound-dual-action-inhibits-oral.html Cancer Fri, 19 Oct 2012 07:34:48 EST news269850881 (HealthDay) -- Testing for HPV, the human papillomavirus linked to cervical cancer, can predict which women will stay cancer-free for a decade or more, a new study shows. http://medicalxpress.com/news/2012-07-hpv-pap-long-term.html Cancer Mon, 30 Jul 2012 19:30:01 EST news262891092 Study results presented at the American Association for Cancer Research's Pancreatic Cancer: Progress and Challenges conference, held here June 18-21, strongly suggest that a diet high in fat and calories can hasten the development of pancreatic cancer in humans. http://medicalxpress.com/news/2012-06-high-fatcalorie-diet-pancreatic-cancer.html Cancer Wed, 20 Jun 2012 15:30:01 EST news259417109 (HealthDay) -- Researchers who say they've linked type 2 diabetes with earlier development of precancerous colon lesions recommend people with the blood sugar disorder start colorectal screenings at a younger age than others. http://medicalxpress.com/news/2012-05-middle-aged-diabetics-earlier-colon.html Diabetes Tue, 22 May 2012 18:16:09 EST news256929332 Researchers report that unsedated transnasal endoscopy is a feasible, safe, and well-tolerated method to screen for esophageal disease in a primary care population. This study is the largest reported experience with transnasal endoscopy in the United States. The study appears in the May issue of GIE: Gastrointestinal Endoscopy, the monthly peer-reviewed scientific journal of the American Society for Gastrointestinal Endoscopy (ASGE). http://medicalxpress.com/news/2012-05-screening-esophageal-disease-unsedated-transnasal.html Cancer Thu, 10 May 2012 13:03:29 EST news255873797 (Medical Xpress) -- A team of scientists led by Johns Hopkins researchers have found that more than four in 10 people considered at high risk for hereditary pancreatic cancer have small pancreatic lesions long before they have any symptoms of the deadly disease. http://medicalxpress.com/news/2012-04-pancreatic-lesions-common-people-high.html Cancer Wed, 04 Apr 2012 06:50:01 EST news252739834 (HealthDay) -- Anal human papillomavirus (HPV) infection and precancerous lesions are common among gay and bisexual men, but most of these cases will not progress to anal cancer, a new analysis of earlier research shows. http://medicalxpress.com/news/2012-03-anal-lesions-dont-cancer-men.html Cancer Fri, 23 Mar 2012 09:40:01 EST news251713031 Female mouse fetuses exposed to very high doses of a common industrial chemical that makes plastics more pliable develop significant reproductive alterations and precancerous lesions as they grow up, according to a new toxicology study conducted at Brown University. http://medicalxpress.com/news/2012-03-highly-exposed-phthalates-fetuses-female.html Medical research Fri, 16 Mar 2012 13:10:46 EST news251122237 Genomic instability caused by an erosion of the protective caps on chromosomes, followed by activation of an enzyme that reinforces those caps, allows malignant cells to evade destruction and acquire more deadly characteristics, researchers report in an Online Now article at the journal Cell. http://medicalxpress.com/news/2012-02-telomere-failure-telomerase-prostate-cancer.html Cancer Tue, 21 Feb 2012 10:39:27 EST news249043161 A mutant protein found in nearly all pancreatic cancers plays a role not only in the cancer's development but in its continued growth, according to a new study from University of Michigan Comprehensive Cancer Center researchers. The finding suggests a possible target for developing new ways to treat this deadly disease. http://medicalxpress.com/news/2012-01-gene-linked-pancreatic-cancer-growth.html Cancer Tue, 31 Jan 2012 11:08:43 EST news247230516 Patients with recent use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDS), or anti-clotting drugs such as clopidogreal (Plavix) do not appear to have an increased risk of bleeding during or after removal of precancerous lesions in the digestive tract, according to results of a Mayo Clinic study. The findings, culled from a review of 1,382 procedures of patients treated at Mayo Clinic in Florida, are being presented at the annual meeting of the American College of Gastroenterology in Washington, D.C. http://medicalxpress.com/news/2011-11-anti-clotting-drugs-gi-procedure.html Cardiology Tue, 01 Nov 2011 13:39:20 EST news239373550 (Medical Xpress) -- From precancerous lesions in the bladder to polyps in the colon, pathologists are constantly examining tissue biopsies for diagnoses. Researchers at Cornell are pushing the limits of the well-established imaging technology called multiphoton microscopy by shrinking the microscopes so they can be inserted safely into a patient's body -- and minimizing the need for unnecessary biopsies. http://medicalxpress.com/news/2011-10-multiphoton-endoscope-minimize-biopsies.html Medical research Tue, 18 Oct 2011 07:59:23 EST news238143549 A University of North Carolina-led international study shows that among Kenyan men, circumcision is associated with a lower prevalence of human papillomavirus-associated precancerous lesions of the penis. Human papillomavirus - HPV - is a sexually transmitted virus that plays an important role in genital cancers in men and women, including cancers of the penis and cervix. http://medicalxpress.com/news/2011-07-male-circumcision-lowers-prevalence-penile.html Cancer Thu, 28 Jul 2011 11:50:04 EST news231070408