Soy May Prevent Breast Cancer At One Time Aggravating

Tofu, tempeh or soy milk is a good source of protein include, low in calories, and low in saturated fat. Other studies say soy proven rewarding helps prevent cancer.

However, there was little doctors recommend women who are experiencing or are at risk of prevalent types of cancer called estrogen receptor positive to avoid soy-based foods because it contains isoflavones.

Some studies say can mimic the hormone estrogen isoflavones and accelerates tumor growth.

Current studies on animals at the Georgetown Lombardi Comprehensive Cancer Center in Washington DC has found a reason why there are two different effects onsoybean, preventing at once accelerate cancer growth.

Researchers found mice fed a soy isoflavones lifetime, particularly a type of soy isoflavones called genistein has a better immune system against cancer.

But the mice that were not given isoflavones until after experiencing breast cancerdo not have the same immune response to kill cancer cells. Instead, these rats have a cancerous growth and the rate of recurrence is higher after the tumor is taken.

The study may explain why women in Asian countries who tend to eat a lot of soy-based foods in their lifetime have a cancer rate five times lower than the women in the United States. The discovery was published on 1 February in the journal ClinicalCancer Research.

More than 200,000 women in the US terdiagnosa of breast cancer each year and most have estrogen receptor positive breast cancer. One of the most common drugs for treating this type of cancer are tamoxifen reduces the ability of estrogen that Act to increase the growth of cancer.

In studies on animals that researchers induce cancer growth in mice get a continuous diet of genistein in rats and never taking genistein to cancer to form.

All the mice treated with tamoxifen to kill the cancer. As a result, all the mice bredwith genistein have only the possibility of seven percent recurrence cancer after tamoxifen treatment. But the new mice got cancer after having a level of genistein recurrence 33 percent.

It remains unclear why genisten have this effect, but it may relate to the immune system is activated by the isoflavones, recognize it as a nutrient that's been diasup for so long, so said Leena Hilakivi-senior researcher Clarke, Professor of Oncologyat Georgetown Lombardi Comprehensive Care Center.

This may look more like genistein produces estrogen which causes cancerous growth and instead serve as tumor exterminator substances.

In other words, the paradox that exists in time. Soy consumption is only beneficialto protect cancer when consumed before starting cancer occurs.

Although there are still ambiguous as to whether the same holds true in humans,Hilakivi-Clarke argued the study in animals it can give information on doctors and patients.

"Our Discovery concluded that breast cancer patients (who eat soy before terdiagnosa) should continue to mengonsumsinya after developing cancer. But don't startmengonsumsinya if not fed genistein, "advice.

Maggie Neola, a nutritionist from Barnard's Medical Center and the Physicians Committee in Washington who is not involved in the research said the discovery fromexperiments on animals often do not occur in the human body and he wanted to see the results of research on a woman's body.