Abstract
Most women complain of cognitive deficits in the menopause transition, though the cause is unclear. The current study investigated the role that within-person changes in reproductive hormones, particularly estradiol, may play in triggering such perimenopausal cognitive difficulties. Participants were 43 women aged 45-55years and currently in the menopause transition. Once a week for 12weeks, participants provided a urine sample for the measurement of estrone glucuronide (E1G), a urinary metabolite of estradiol. Every three weeks across the 12-week period, participants also underwent cognitive testing, including assessments of immediate and delayed memory, attention, and executive function, and completed questionnaires assessing subjective cognitive performance. Potential confounding variables including sleep quality, vasomotor symptoms, and depressive symptoms were also assessed. Within-person E1G was positively associated with objective measures of attention, particularly the ability to passively register auditory information on the first pass, as well as subjective measures of memory, specifically relating to a lower frequency of forgetting things in everyday life. Perimenopausal women with lower estimated levels of intellectual functioning furthermore exhibited a stronger relationship between E1G changes and objective cognitive performance. While depressive mood, poor sleep, and vasomotor symptoms were all negatively associated with at least one aspect of cognitive function, the E1G-cognition relationship was not explained by these factors. This study provides evidence that validates perimenopausal women's cognitive complaints but also suggests that cognitive deficits are generally mild and transient.
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