Salute

Increased Risk of Large Bowel Cancer for Each 1 cm Rise in Waist Circumference

- BARCELONA, Spain, October 26, 2015 /PRNewswire/ --

Experts speaking at UEG Week 2015 in Barcelona today revealed compelling evidence of the link between excess body weight and risk of colorectal cancer (CRC).Professor John Mathers, from Newcastle University, presented data showing an overall increase of 18% in relative risk of CRC per 5 unit increase in BMI.

"In addition, in men,there is nowevidencethat increasing waist circumference in middle age is associated withincreasedbowel cancerrisk", says Prof. Mathers.CRC risk was increased by nearly 60% in men who gained at least 10 cm in waist circumference over 10 years."This increased cancer risk may be due to persistentinflammation inpeople withobesity".

Patients with Lynch Syndrome (LS) have a higher than normal risk of CRC because of an inherited defect in one of the genes responsible for repairing DNA. In people with Lynch Syndrome, CRC risk increases with higher body weight and for those who are obese the risk of CRC is doubled. Quite surprisingly, the increase in CRC risk with higher body weight in people with Lynch Syndrome was about twice as great as that seen in the general population.

Prof. Mathers said "There is now compelling evidence that improved lifestyle, particularly better dietary choices and being more physically active, can help to prevent obesity and this will lower CRC risk." In addition, for those people who are already too heavy, losing weight may reduce their CRC risk but this is an area which requires further study. In his studies with Lynch Syndrome patients, Prof. Mathers observed that aspirin lowered the excess CRC risk seen in patients with obesity, perhaps through its anti-inflammatory effects. "This is a very intriguing finding," said Prof Mathers "which suggests that dietary and other anti-inflammatory agents might be beneficial in reducing CRC risk in people with obesity."

"CRC is strongly associated with age, obesity and diet - and is driven by inflammation," explains Prof. Mathers. "We can now give the public clear advice on the benefits of staying physically active, eating a healthy diet and avoiding weight gain to lower CRC risk as we get older."

Notes to Editors:

For references visit: https://www.ueg.eu/press/releases/

Downloadable infographic: https://www.ueg.eu/fileadmin/user_upload/documents/Press/Images.Videos/Diet_and_GI_Diseases_Final.pdf

26 ottobre 2015 ADNKronos
Tag scienza - salute -
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