Several factors are known to increase risk of breast cancer in women. But if a woman is overweight or obese, then she is at risk of aggressive breast cancer.
Based on a recent study found that menopausal women are overweight (obesity) had a 35 percent higher risk of breast cancer 'triple-negative' than women who are not obese. Breast cancer 'triple-negative' is considered an aggressive type of breast cancer.
Obese women also have an increased risk by 39 percent of breast cancer estrogen receptor positive, which is a type of cancer that will be fed by the hormone estrogen.
"Obesity is becoming one of the risk factors of breast cancer, but we were surprised to find that the obesity associated with breast cancer 'triple-negative'," said researcher Amanda Phipps from the Fred Hutchinson Cancer Research Center in Seattle, as quoted by Live Science, Thursday (03/03/2011).
The study involved 155,723 postmenopausal women by observing the body mass index (BMI) and physical activity. There are 307 known women who have breast cancer 'triple-negative' and 2610 women who have estrogen receptor positive breast cancer. And increased risk of breast cancer in women who have a high BMI value or classified in the category of obesity.
To avoid these risks, women should maintain an ideal weight to avoid excessive overweight.
Much physical activity in obese women can also reduce the risk of both types of breast cancer. High physical activity reduce breast cancer risk 'triple-negative' by 23 percent and estrogen receptor positive breast cancer by 15 percent.
These findings suggest that estrogen not only affects cancer risk, but the possibility of non-hormonal factors, there are others that could affect the increased risk of cancer.
The result of this study was published on March 1, 2011 in the journal Cancer Epidemiology, Biomarkers Prevention.
No comments:
Post a Comment