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MUHC researchers identify biomarkers that could leadto early diagnosis of colorectal cancer
Date:10/30/2013

This news release is available in French.

MONTREAL, October 30, 2013 Diagnosing colorectal cancer (CRC) is complex; it relies on significant invasive tests and subjective evaluations. This process may soon become much easier thanks to a medical breakthrough by scientists at the Research Institute of the McGill University Health Centre (RI-MUHC). The researchers have identified genetic changes in the colon lining, or mucosa, in colorectal cancer patients that could be used as biomarkers of the disease. That will allow doctors to diagnose patients earlier, more accurately and less invasively. The study, recently published online, in Cancer Prevention Research, has implications for the nearly one million people diagnosed annually worldwide.

"The gold standard of diagnosis is currently colonoscopy," says corresponding author of the study, Dr. Rima Rozen, a geneticist from the Departments of Human Genetics and Pediatrics at The Montreal Children's Hospital of the MUHC and McGill University. "This is an invasive procedure, where the physician looks for abnormal tissue or growths also known as polyps." Additionally, given surging demand for colonoscopies, this research may ultimately offer an alternative option for early diagnosis, paving the way for the reduction in wait time.

According to Dr. Rozen, who is also a researcher of the Medical Genetics and Genomics Axis at the RI-MUHC, having genetic biomarkers of CRC will enhance the diagnostic procedure. "This new method could help to avoid false negative findings, which can occur in 10 to 15 per cent of endoscopic procedures," she says. "The key is using the right genes. I believe the ones we have identified are good candidates."

Dr. Rozen and her colleagues first identified five possible abnormal mark
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Contact: Julie Robert
julie.robert@muhc.mcgill.ca
514-934-1934 x71381
McGill University Health Centre
Source:Eurekalert

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