Popular Articles

Progress Seen In Some African HIV/AIDS Prevention, Treatment Programs, U.N. Special Envoy Says At World Economic Forum On Africa
Several African countries have successfully scaled up their HIV/AIDS prevention and treatment programs, U.N. Special Envoy for HIV and AIDS in Africa Elizabeth Mataka said during a media briefing at the World Economic Forum on Africa being held in Cape Town, South Africa, the ZANIS/Lusaka Times reports. Zambia and Botswana were among some of the countries that have made significant progress in southern Africa, according to Mataka.

Future Of Independent Sector Treatment Centres, UK
The future use of Independent Sector Treatment Centres (ISTCs) in the NHS, will be fairer and on the same terms as other providers of NHS services, Health Minister Mike O"Brien announced today.
News of the day
Beth Israel Patients To Get A Look At Online Doctors' Notes
A Beth Israel Deaconess Medical Center project called "open notes"" will make doctor"s notes available to as many as 35,000 patients online along with the rest of their medical records for a year, the Boston Globe reports.
Sexual Health

Is There Any Association Between COX2 And Colon Cancer?

Non-steroidal anti-inflammatory drugs (NSAIDs), which are known to reduce the risk of colon cancer, act directly on cyclooxygenase-2 (COX2) and reduce its activity. Population studies have found an association of inherited variations in the COX2 gene with colon cancer risk, but others were unable to replicate this finding. Similarly, variations in the uridine diphosphate glucuronosyltransferase 1A6 (UGT1A6) gene, which is also known to be key in the metabolism of NSAIDs, have been shown to modify the effect of NSAIDs on developing colon polyps, a precursor of colon cancer, but these modifications of NSAID effects have not been observed in risk of colon cancer. A research article published on May 14, 2009 in the World Journal of Gastroenterology addresses this problem. The research team led by Dr. Li from Case Western Reserve University examined the association of variants of the COX2 and UGT1A6 genes, and their interaction with NSAID consumption, on risk of colon cancer in attempt to more fully understand the relationship between genetic variation and the protective effect of NSAIDs on colon cancer risk. They found that no single nucleotide polymorphisms (SNPs) in either gene were individually statistically significantly associated with colon cancer, nor did they statistically significantly change the protective effect of NSAID consumption. Like others, the authors were unable to replicate the association of variants in the COX2 gene with colon cancer risk (P > 0.05), and they did not observe that these variants modify the protective effect of NSAIDs (P > 0.05). Their study does not support a role of COX2 and UGT1A6 genetic variations in the development of colon cancer. Reference: Thompson CL, Plummer SJ, Merkulova A, Cheng I, Tucker TC, Casey G, Li L. No association between cyclooxygenase-2 and uridine diphosphate glucuronosyltransferase 1A6 genetic polymorphisms and colon cancer risk. World J Gastroenterol 2009; 15(18): 2240-2244 http://www.wjgnet.com/1007-9327/15/2240.asp Correspondence to: Li Li, MD, PhD, Department of Family Medicine, Research Division, Case Western Reserve University, 11001 Cedar Ave., Suite 306, Cleveland, Ohio 44106-7136, United States. Lai-Fu Li World Journal of Gastroenterology


Add your comment:
Name:
Site address: http://
Your message:
Enter today\\\\'s date, 2 digits
(spam protection):