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Brain's reward circuit activity ebbs and flows with a woman's hormonal cycle
Fluctuations in sex hormone levels during women's menstrual cycles affect the responsiveness of their brains' reward circuitry, an imaging study at the National Institute of Mental Health (NIMH), a component of the National Institutes of Health (NIH), has revealed. view more (2007-02-05)
Hormone-replacement therapy hurts hearing, study finds
The largest study ever to analyze the hearing of women on hormone-replacement therapy has found that women who take the most common form of HRT have a hearing loss of 10 to 30 percent more compared to similar women who have not had the therapy. view more (2006-09-06)
Benefits of testosterone treatment unknown, research shows
Little research exists demonstrating that testosterone is both safe from the cardiovascular standpoint and effective to treat sexual dysfunction, reveal Mayo Clinic researchers in two new studies. view more (2007-01-10)
Plastics in common household items may cause fertility defects
The contaminant bisphenol-A (BPA)—widely used to make many plastics found in food storage containers and dental products—can have long-term effects in female development, according to a recent study by Yale School of Medicine researchers. view more (2007-02-15)
Lab study shows THC exposure as adolescents linked to negative effects of THC as adults
In earlier studies, researchers at Louisiana State University had found that estrogen -- or more precisely, having ovaries -- made adult rats exposed for the first time to THC, the primary ingredient in marijuana and hashish, less sensitive to THC's negative effects on tests of learning and memory. view more (2009-04-20)
Bisphenol A exposure in pregnant mice permanently changes DNA of offspring
Exposure during pregnancy to the chemical bisphenol A, or BPA, found in many common plastic household items, is known to cause a fertility defect in the mother's offspring in animal studies, and now researchers have found how the defect occurs. view more (2009-06-11)
Balancing hormones may help prevent preterm births
The relationship between two different types of estrogen and a hormone produced in the placenta may serve as the mechanism for signaling labor, according to a new study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM). view more (2009-04-01)
Contraceptive use may be safe, but information gaps remain
Introduced in the 1960s, oral contraceptives have been used by about 80 percent of women in the United States at some point in their lives. view more (2009-01-14)
Letrozole following tamoxifen may benefit women with breast cancer
Switching to the drug letrozole following 5 years of treatment with tamoxifen reduces the risk of hormone-dependent breast cancer recurrence, but not overall survival, among postmenopausal women. view more (2005-09-07)
Early exposure to synthetic estrogen puts 'DES Daughters' at higher risk for breast cancer
So-called "DES daughters," born to mothers who used the anti-miscarriage drug diethylstilbestrol during pregnancy, are at a substantially greater risk of developing breast cancer compared to women who were not exposed to the drug in utero. view more (2006-08-07)
Long-term hormone replacement therapy increases breast cancer risk
"Are you taking or did you take hormones? If yes, which hormone medication and for how long? When did you stop taking hormone replacement medication?" 3,464 breast cancer patients and 6,657 healthy women between the ages of 50 and 74 years participated in a large survey and elicited detailed information about hormone replacement... view more... (2008-05-29)
Study suggests MPA is effective treatment for hot flashes
Mayo Clinic researchers working with other North Central Cancer Treatment Group (NCCTG) investigators have found that a single dose of depomedroxyprogesterone acetate (MPA) more effectively reduces hot flashes than does the antidepressant venlafaxine (Effexor®) view more (2006-03-01)
1 in 5 early-stage breast cancer patients may not follow hormonal therapy plan
Postmenopausal women with early-stage, hormone-sensitive breast cancer have a lower risk of disease recurrence when their treatment includes a new class of hormone therapy drugs, yet one out five women prescribed the drugs may not take them regularly. view more (2006-12-18)
Bisphenol A linked to chemotherapy resistance
Exposure to bisphenol A (BPA) may reduce the effectiveness of chemotherapy treatments, say University of Cincinnati (UC) scientists. view more (2008-10-09)
Asian Spice Could Reduce Breast Cancer Risk in Postmenopausal Women Exposed to Hormone Replacement Therapy, MU Study Finds
Previous studies have found that postmenopausal women who have taken a combined estrogen and progestin hormone replacement therapy have increased their risk of developing progestin-accelerated breast tumors. view more (2009-07-14)
Oral contraceptives associated with reduced risk of multiple sclerosis
Over a three-year period, the risk of developing multiple sclerosis (MS) was reduced in women taking oral contraceptives, according to a study in the September issue of Archives of Neurology, one of the JAMA/Archives journals. view more (2005-09-13)
Researchers look to the brain to explain gender differences in sleep apnea
The neural pathways between two areas of the brain that control the tongue - and their interactions with each other - may hold the key as to why men suffer sleep apnea much more than women. view more (2006-04-04)
Penn studies point to strategies for reducing painful breast cancer drug side effects
Aromatase inhibitors, the same drugs that have buoyed long-term survival rates among breast cancer patients, also carry side effects including joint pain so severe that many patients discontinue these lifesaving medicines. view more (2009-09-29)
LA BioMed research finds simpler way to assess breast cancer risk
A new, simpler model for predicting breast cancer risk in postmenopausal women appears to be as accurate as a more complicated method currently used to decide if women would benefit from medication to reduce their risk of getting cancer, according to research published today in the Journal of the National Cancer Institute. view more (2007-11-14)
Ethnic variations in hormone levels may cause differences in breast cancer risk
Researchers have known that a woman's natural hormone levels can affect her risk of developing breast cancer. A new study from the University of Southern California (USC) has found that the natural levels of estrogens in post-menopausal women varies by ethnicity and race, and may explain the differences in the groups' breast cancer rates. view more (2006-10-10)
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