this is the first study to find a link between a mole and a breast cancer. The researchers analyzed data from two large prospective studies, followed by a survey of 74523 and 89902 women.
PLOS Medicine" magazine that, by calculating the number of moles of women on the left arm, may allow doctors to determine the risk of breast cancer is more simple.
study also found that more than 6 moles of post menopausal women had higher levels of estrogen and testosterone in the blood than those without moles. This, in turn, could predict the risk of breast cancer in women.
"we know that a large number of common nevi are skin melanoma, which is the leading risk factor for skin cancer. There is also a link between melanoma and breast cancer."
most adults have 10-40 moles, usually located above the waist and often exposed to the sun. The most common skin nevus, slight hyperplasia, usually pink, brown or brown, with a distinctive edge, will not become cancer. More than 50 moles mean an increased risk of melanoma.
of the Harvard University School of Medicine said: "we are not saying that moles will directly lead to breast cancer, there are several factors associated with breast cancer but may and we observed, including genetic and endocrine."
gene and cancer risk
has previously been shown to be associated with a number of hormonal disorders, including endometriosis, uterine fibroids, and thyroid disease.
why mole can predict breast cancer?
because breast cancer is the most common hormone related cancer in women, Kvaskoff wanted to see if it was possible to predict the risk of breast cancer. It was found that women with a lot of moles had a higher risk of developing breast cancer than those who did not have a mole. 13%.
, for example, a recent study by the skin cancer foundation shows that nearly 4 times more likely to develop other malignancies, whether breast cancer or melanoma.
The Association between
hormones, breast cancer, moles and skin cancer
scientists are still working on genes and melanoma and breast cancer
gene may be a key factor leading to the risk of cancer, the number of moles of women on the arm, associated with estrogen and testosterone levels in the blood, which in turn may lead to the risk of breast cancer.
Dr. Marina Kvaskoff Association between The A new study published in the "
"studies have shown that women during pregnancy, moles may become larger, darker color, is due to elevated levels of hormones." Kvaskoff added.
researchers found that women have more than 15 teeth left arm mole, their risk of developing breast is 35% higher than other women.