It has found that the women who have breastfed after surviving breast cancer have reduced the chances of recurrence of the disease by 30 percent and the risk of being killed by it was reduced by 28 percent.
According to a statistics it is found that 12 percent of women or 1 out of 12 women suffer breast cancer during their lifetime.
Most of the women who suffer from breast cancer are below 50 years of age.
Since 2000 incidence rate is falling but 232,670 cases of breast cancer can be added in 2014, and the report also suggests that 40,000 women can be killed by the disease.
For the study researchers have analyzed the data of the women who suffer from breast cancer and they have filled out questionnaires about breastfeeding and health in their past.
1,636 participants were analyzed.
After the study, researchers discovered that breastfeeding had given protective to the women from particular types of tumors especially from some specific genetic subtypes.
Marilyn Kwan, health care provider from Kaiser Permanente and lead author of the study said, “This is the first study we’re aware of that examined the role of breastfeeding history in cancer recurrence, and by tumour subtype. Women who breastfeed are more likely to get the luminal A subtype of breast cancer, which is less aggressive, and breastfeeding may set up a molecular environment that makes the tumour more responsive to anti-oestrogen therapy.”
They discovered that women who have breastfed for six months or longer had a better protection cover against cancer.
Women who have breastfed are at a less risk of developing cancer or being killed by it, but if they do develop cancer then they will be more likely to be diagnosed with luminal A subtype.
Luminal A breast cancer is a subtype of estrogen-receptor positive are less aggressive and easy to treat.
These tumors are can be treated with hormone therapy, and they are less likely to spread to other body parts like other tumors.
They can be treated with hormone drugs like tamoxifen and aromatase inbitors.
Bette Caan, from Kaiser permanente and co-author of the study said, “Breastfeeding may increase the maturation of ductal cells in the breast, making them less susceptible to carcinogens or facilitate the excretion of carcinogens, and lead to slower growing tumours.”