Much controversy exists and many questions remain unanswered about the effects of hormone therapy (HT) on cognition in postmenopausal women. There is growing evidence suggesting that HT compounds containing conjugated equine estrogen (CEE) have negative effects on cognition whereas 17ß-estradiol (17ß-E) either has positive or neutral effects. The present study sought to further examine this issue in a sample of postmenopausal women with risk factors for Alzheimer's disease (AD).Cross-sectional neuropsychological evaluation.Academic research clinic.68 healthy postmenopausal women (aged 49-68) receiving either 17ß-E or CEE for at least one year with increased risk for AD.Neuropsychological test battery of the cognitive domains of attention/working memory/processing speed, verbal memory, visual memory, and executive functioning.Multivariate analyses of variance (MANOVA) showed significantly better verbal memory performance in women receiving 17ß-E compared to women receiving CEE regardless of age, IQ, years of education, risk factors for AD (including APOE-e4 carriership), duration of endogenous and exogenous estrogen exposure, concurrent progesterone use, or natural versus surgical menopause status.Verbal memory performance was better in postmenopausal women receiving 17ß-E compared to CEE in a sample population of women with risk factors for AD. Genetic risk for AD as well as other confounds did not affect this finding. The results suggest a differential effect of HT type on verbal memory, with 17ß-E being a preferential compound. Further evaluation of HT types, regimens and duration of use on cognitive performance in postmenopausal women in a controlled longitudinal design is warranted.
View details for DOI 10.1097/JGP.0b013e3181ff678a
View details for Web of Science ID 000294415800006
View details for PubMedID 21873835
View details for PubMedCentralID PMC3164805