Close firstborn increases the risk of breast cancer

Mom gives birth to large firstborn greater risk of becoming victims of later breast cancer. This is the conclusion, researchers from the University of Texas.

American scientists have found that the first-born of a large (more than 4 kg body weight) in two and a half times increased risk of developing breast cancer   from his mother in the coming years. According to experts, this may be due to the fact that mothers who gave birth to large children increased levels of certain hormones, including estrogen. And it has long been associated with increased risk of occurrence of the most common female cancer.

The researchers observed the health of 410 women. Those who produced a first child with herculean proportions, the risk of breast cancer   I grew in two or even two and a half times. On average, the disease is 30 years after the first birth, which seems to cast doubt on the hormonal version. But the researchers believe that our body has its own memory, and a high level of estrogen is imprinted in it for many years.

In general, women with large first-borns had elevated levels of the three hormones that can create a "precancerous situation" in the body, as stated by the author Dr. Radek Bukowski. These high levels of estrogen and antiestrogen low free insulin-like growth factor, which is also associated with the development of breast cancer.

"The risk of breast cancer in women with large firstborn grows in two and a half times, regardless of other factors - says Dr. Bukowski. - It is comparable to the risk of women whose mothers become victims of breast cancer - and this is one of the most powerful contributing factors of the disease. Of course, women can not take control of hormones during pregnancy, but they can then take steps genetic protection against breast cancer. And more often checked. "

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