Eating salmon twice a week could protect against skin cancer, according to new research.
Omega-3 fatty acids found in oily fish - which include sardines, mackerel and trout - destroy malignant cells in skin and mouth tumours while leaving healthy ones alone, experiments show. The finding could even lead to the development of aerosols or gels containing the molecules that zap skin and mouth cancers. Experiments found the omega-3 fatty acids stopped induced cell death in both early and late stages of the diseases.
Professor Kenneth Parkinson, of Queen Mary, University of London, said: ‘We found the omega-3 fatty acid selectively inhibited the growth of the malignant and pre malignant cells at doses which did not affect the normal cells. Surprisingly, we discovered this was partly due to an over stimulation of a key growth factor (epidermal growth factor) which triggered cell death. This is a novel mechanism of action of these fatty acids.'
Britons are currently advised to eat fish at least twice a week, including one portion of oily fish. A portion is 140g or six ounces.
The finding published online in the journal Carcinogenesis suggests they could be used in both the treatment and prevention of certain skin and oral cancers.
Source - Daily Mail