New way to spot bowel cancer could save lives: study

PARIS, 21 aug 2008 – Researchers in Britain have developed a more accurate technique for spotting the most aggressive forms of bowel cancer, according to a new study.
The discovery will help doctors to rapidly identify patients who need chemotherapy, boosting their chances of survival, the study said.
"We only want to use chemotherapy where we think there's a good chance it will help. This test will help use determine that," said co-author Robert Wilson, a surgeon at The James Cook University Hospital in Middlesbrough, England.
Colorectal, or bowel, cancer is the third most deadly form of cancer worldwide, accounting for nearly 680,000 deaths in 2007, according to the World Health Organisation.
Almost three-quarters of all cases -- linked to diet and lifestyle -- occur in people aged 65 and over.
"There is a desperate need for more effective treatments for bowel cancer," noted Mark Matfield of the Association for International Cancer Research, commenting on the study.
"The problem is identifying which cancers need which treatment. This discovery may show us the way to do that and help save a lot of lives," he said.
Stem-cell researchers led by Christopher Hutchison of Durham University examined tissue samples from 700 bowel cancer patients.
They found that patients who had a stem cell marker protein called "Lamin A" were more likely to have an especially aggressive and tenacious form of the disease.
If detected in the early stages of the cancer's progression, the marker could signal the need for chemotherapy in addition to the more standard use of surgery to remove tumours, they concluded.
Scientists identify four stages in the development of bowel cancer. In the first two stages -- before patients develop lymph nodes -- patients normally have an operation to remove cancerous tissue.
They are rarely given chemotherapy, which can sometimes cause more harm then benefit.
But the new study shows that one third of these patients will express the Lamin A stem cell marker, and would thus be good candidates for the more aggressive form of treatment.
The study was published in the open-access science journal Public Library of Science One (PLoS One).

Alcohol linked to bowel cancer, says study

Tue Jul 31, 10:01 AM ET
Drinking wine or beer every day increases the risk of bowel cancer, according to a new study reported Tuesday.
The report, published by the International Journal of Cancer, says that drinking two large glasses of wine or two pints a day increases the risk of this disease by around quarter compared with non-drinkers.
One glass of wine or a pint of beer a day raises the risk by 10 percent.
"The research shows quite clearly that the more alcohol you drink the greater your risk of bowel cancer," said Professor Tim Key, an expert with Cancer Research UK told the Daily Telegraph.
The study was based on questioning of 478,000 people in 10 European countries over six years, of whom over 1,800 developed bowel cancer, which is the third most common form of the disease after lung and breast cancer.
Each year 35,000 people are diagnosed with bowel cancer and it kills 16,100 a year, the British newspaper reported.
The findings will raise question marks for those following widespread scientific advice that regular but modest consumption of red wine can help protect against heart attacks.
"The increase in risk is not large but it is important that people understand they can reduce their risk of a number of different cancers - including bowel cancer - by cutting down on alcohol," said Key.