Scientists at the National Institutes of Health (NIH) have found that two common types of hormone therapy may alter breast cancer risk in women before age 55. Researchers discovered that women treated with unopposed estrogen hormone therapy (E-HT) were less likely to develop the disease than those who did not use hormone therapy. They also found that women treated with estrogen plus progestin hormone therapy (EP-HT) were more likely to develop breast cancer than women who did not use hormone therapy. Together, these results could help to guide clinical recommendations for hormone therapy use among younger women.

For the first time, the extreme variability in dengue fever has been linked to a biological mechanism, potentially opening doors to new treatments and vaccines for the most common mosquito-borne disease worldwide. The study was published today in Proceedings of the National Academy of Sciences (PNAS) by researchers from the University of Pittsburgh, UPMC and Instituto Aggeu Magalhães in Brazil.

With a new $11 million federal grant, the University of Oregon will create a national center for children’s mental health, putting the university at the forefront of national prevention efforts to improve the mental health and well-being of adolescents.

An engineered protein turns off the kind of immune cells most likely to damage tissue as part of Type-1 diabetes, hepatitis, multiple sclerosis, shows a new study in mice.