Strawberries prevent esophageal cancer
Oncology / / May 14, 2016
Recent research in the field of medicine have shown slowing of precancerous lesions in people who regularly ate strawberries.
«Eating strawberries may help people at high risk of developing esophageal cancer, protect themselves from the disease," said researcher Tong Chen, MD, PhD, assistant professor of medicine at Ohio State University International Cancer Center, Columbia.
She presented the results of his small study by the American Association for Cancer Research meeting in Orlando (FL).
Animal studies have shown that strawberries had some advantages in the fight against cancer of the esophagus, Chen decided to study its effects on people.
in 2010 were diagnosed 16,640 new cases of esophageal cancer in the United States, of which 14,500 people died from the disease according to the American Cancer Society.risk factors for esophageal cancer include tobacco use and the combination of smoking and regular alcohol consumption.As a diet low in fruits and vegetables can also increase the risk of dise
To study were selected from a group of 36 men and women aged 54 years with precancerous lesions of the esophagus.
Chen instructed the men and women participating in the study, there are about 2 ounces of freeze-dried, dried in a special way, strawberries a day.It was necessary to increase the concentration needed to fight cancer cells substances in a berry.
"When you remove the water from the strawberry we increased the concentration of constituents in the ten times," says Chen
members were a daily record of the number of consumption of strawberry They were not recommended to change that -... Or in diet and lifestyle Most of the participants smoked, saysChen. All esophageal biopsy was done before and after the study.
at the beginning of the study, 31 participants in the experiment were pre-cancerous condition known as mild dysplasia and 5 observed moderate dysplasia.
Doctors can predict the likelihood that precancerous lesions will develop into cancerChen says. "at moderate dysplasia in 25% of cases of cancer will develop in about 15-20 years.And in 50% of cases of cancer will develop over the next 15-20 years. "
Strawberry slowed the progression of lesions in most cases. In 29 experimental observed decrease in precancerous lesions, said Dr. Chen. At 6-studied disease run unchanged, withthe risk of developing cancer.
One of the known agents, carcinogens that cause cancer and known as N-NMBA (nitrosomethylbenzylamine) associated with esophageal cancer, Chen said. He was found in pickled vegetables, fried bacon, and other products, she says. Tobacco smokealso contains the carcinogen.
'' We believe that strawberries can inhibit the activation of NMBA. "Tong Chen says.
Among the substances contained in the strawberries, which can help in the prevention and treatment of cancer, isolated vitamins, folic acid, minerals, their combination and ratio.
new study interesting, but preliminary, states Stephen Shibata, MD, Clinical Professor of Medical Oncology International Cancer Center in Duarte, California, analyzed the results of this study.
Many questions remain unanswered, he said."The basic idea of future research is to make sure that the result is not accidental. Watch the group of patients who did not receive a strawberry, but also were treated by other methods."
Perhaps, he says, that the patients in the study, of a different lifestyle and diet to the point where they joined the study.And so it is necessary to work out the other questions to be answered, he said, figuring out the optimal dose and duration of their strawberry consumption.
"I would not recommend people start manic and uncontrolled use strawberries, based on the results of this experiment," he says.More research is needed, including studies of different varieties of strawberries and strawberry.Meanwhile, a large number of fruits and vegetables in the diet is a good idea, he said.
«Research shows that eating a variety of non-starchy fruits and vegetables, and avoiding tobacco, alcohol, fatty and fried foods, are essential to reduce the risk of esophageal cancer," experts say.