CLEVELAND, Ohio (July 19, 2017) It's no secret that the risk of depression increases for women when their hormones are fluctuating. Especially vulnerable times include the menopause transition and onset of postmenopause. There's also postpartum depression that can erupt shortly after childbirth. But why do some women feel blue while others seem to skate through these transitions? One answer is provided through study results being published online today in Menopause, the journal of The North American Menopause Society (NAMS).
The article "Lifelong estradiol exposure and risk of depressive symptoms during the transition to menopause and postmenopause" includes data from a study of more than 1,300 regularly menstruating premenopausal women aged 42 to 52 years at study entry. The primary goal of the study was to understand why some women are more vulnerable to depression, even though all women experience hormone fluctuations.
Previous studies have suggested a role for reproductive hormones in causing an increased susceptibility to depression. This study focused largely on the effect of estradiol, the predominant estrogen present during the reproductive years. Among other things, estradiol modulates the synthesis, availability, and metabolism of serotonin, a key neurotransmitter in depression. Whereas fluctuations of estradiol during the menopause transition are universal, the duration of exposure to estradiol throughout the adult years varies widely among women.
A key finding of this study was that longer duration of estrogen exposure from the start of menstruation until the onset of menopause was significantly associated with a reduced risk of depression during the transition to menopause and for up to 10 years postmenopause. Also noteworthy was that longer duration of birth control use was associated with a decreased risk of depression, but the number of pregnancies or incidence of breastfeeding had no association.
"Women are more vulnerable to depressive symptoms during and after the menopause transition because of fluctuating hormone changes," says Dr. JoAnn Pinkerton, executive director of NAMS. "This study additionally found a higher risk for depression in those with earlier menopause, fewer menstrual cycles over lifespan, or more frequent hot flashes. Women and their providers need to recognize symptoms of depression such as mood changes, loss of pleasure, changes in weight or sleep, fatigue, feeling worthless, being unable to make decisions, or feeling persistently sad and take appropriate action."
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Founded in 1989, The North American Menopause Society (NAMS) is North America's leading nonprofit organization dedicated to promoting the health and quality of life of all women during midlife and beyond through an understanding of menopause and healthy aging. Its multidisciplinary membership of 2,000 leaders in the field–including clinical and basic science experts from medicine, nursing, sociology, psychology, nutrition, anthropology, epidemiology, pharmacy, and education–makes NAMS uniquely qualified to serve as the definitive resource for health professionals and the public for accurate, unbiased information about menopause and healthy aging. To learn more about NAMS, visit http://www.menopause.org.
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