Estradiol Exposure Linked To Risk Of Depressive Symptoms in Women

Earlier menopause, fewer menstrual cycles over lifespan, or more frequent hot flashes was associated with an increased risk of depression in women.

The risk of depression increases for women when their hormones are fluctuating especially vulnerable times include the menopause transition and onset of postmenopause. But why do some women feel blue while others seem to skate through thesetransitions?

One answer is provided through study results being published in the article "Lifelong estradiol exposure and risk of depressive symptoms during the transition to menopause and postmenopause."

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‘Longer duration of estrogen exposure from the start of menstruation until the onset of menopause was significantly associated with a reduced risk of depression.’

The article 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.

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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.

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"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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Source-Eurekalert