Broccoli may prevent oral cancer as clinical tests set to start on humans
Source: www.mirror.co.uk Author: staff The much-maligned green vegetable deserves more respect as lab tests show extracts of sulforaphane reduced tumours in mice. Broccoli could soon protect people from cancer of the mouth, throat, neck and head in a new treatment known as “green chemoprevention.” Cruciferous vegetables such as broccoli, cabbage and garden cress have a high concentration of sulforaphane. Previous studies, including large-scale trials in China, have shown sulforaphane helps mitigate the effects of environmental carcinogens. Now lab tests have shown extracts made from broccoli sprout protected mice against oral cancer. American scientists now plan to carry out clinical trial on patients at high risk of a recurrence of head and neck cancer. They will be given capsules containing broccoli seed powder to determine if they can tolerate the regimen and whether it has enough of an impact on their oral lining to prevent cancer. Associate professor Dr Julie Bauman of the University of Pittsburgh said: “People who are cured of head and neck cancer are still at very high risk for a second cancer in their mouth or throat, and, unfortunately, these second cancers are commonly fatal. “So we’re developing a safe, natural molecule found in cruciferous vegetables to protect the oral lining where these cancers form.” The study involved testing sulforaphane in the laboratory when over several months mice predisposed to oral cancer were given the extract and found that it significantly reduced the incidence and number of tumours. Professor of medicine Dr Daniel Johnson at Pitt’s School [...]