The
potential benefits of soy isoflavones for breast health may extend
beyond malignant tumours, as a new study suggests a lower incidence of
benign breast cysts. Indeed, population studies have shown that a diet
rich in soy is associated with fewer cases of breast cancer, linked to
the presence of soy isoflavones. China has the world’s lowest incidence
and mortality from breast cancer – a disease that has over one million
new cases every year worldwide. The new study, led by Johanna Lampe from
the Fred Hutchinson Cancer Research Center, Seattle, indicates that
benefits may also extend to fibrocystic breast conditions, a very common
and benign condition characterised by lumpiness and discomfort in one
or both breasts. The researchers recruited 196 women with breast cancer,
304 women with benign breast condition, and 1,002 healthy, breast
cancer-free age-matched controls in Shanghai, China. The benign
conditions were further classified as proliferative (173 women) or
nonproliferative (131 women). Increased plasma levels of the isoflavones
genistein and daidzein were associated with a reduced risk of both
types of benign conditions, in addition to breast cancer. Indeed, the
highest plasma levels of genistein (more than 76.95 nanograms per
millilitre) were 74 per cent less likely to have breast cancer, and 60
per cent less likely to have benign conditions, relative to women with
the lowest average levels (less than 9.42 ng/mL).
Category: Productos
Source: NutraIngredients