estradiol

Female sex hormones play a vital role in defense against sexually transmitted diseases

...rst study, female mice received either the hormone estradiol or progesterone, a combination of both, or nothing...l prior to exposing them to the herpes virus. Both estradiol and progesterone are natural hormones found in the body. The estradiol-treated mice were protected ...

Researchers uncover mechanisms of estrogen in promoting cell death in breast cancer

...nderstood. To try to understand how the estrogen estradiol induces apoptosis in cells, V. Craig Jordan, Ph.D....adiol. The researchers treated MCF-7:5C cells with estradiol and fulvestrant, and they also injected the cancer cells into mice to study estradiol's influence on...

High estrogen levels associated with dementia in older men

...eport. "In contrast, higher levels of bioavailable estradiol were associated with an increased risk for cogniti... disease." For each standard deviation increase in estradiol level, the risk for the disease went up by 25 percent. Furthermore, compared with the lowest tertile...

Ultra low-dose estrogen shown safe for post-menopausal women

...hout adverse health effects, in the women who took estradiol compared to the women who took placebo. The curren... Yaffe and her associates received a daily dose of estradiol ?pure human estrogen ?that was over 44 times smaller and delivered through a skin patch. "The dif...

Study shows lizard moms dress their children for success

...blotched lizards give an extra dose of the hormone estradiol to their eggs in certain social circumstances. The...nt hormones. That revealed a striking influence of estradiol on back patterns. She also tested eggs from lizards captured in the wild and found a wide range of n...