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Abstract Title:

Relative effects of tamoxifen, raloxifene, and conjugated equine estrogens on cognition.

Abstract Source:

J Womens Health (Larchmt). 2010 Mar ;19(3):371-9. PMID: 20136553

Abstract Author(s):

Mark A Espeland, Sally A Shumaker, Marian Limacher, Stephen R Rapp, Therese B Bevers, David H Barad, Laura H Coker, Sarah A Gaussoin, Marcia L Stefanick, Dorothy S Lane, Pauline M Maki, Susan M Resnick

Article Affiliation:

Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA. mespelan@wfubmc.edu

Abstract:

OBJECTIVE: To compare the relative effects of conjugated equine estrogens (CEE), raloxifene, and tamoxifen therapies on cognition among women aged>or =65 years.

METHODS: Annual Modified Mini-Mental State (3MS) examinations were used to assess global cognitive function in the two randomized placebo-controlled clinical trials of CEE therapies of the Women's Health Initiative Memory Study (WHIMS) and the Cognition in the Study of Tamoxifen and Raloxifene (CoSTAR). Analyses were limited to women who had 3MS testing at baseline and the first 3 years of follow-up and, because of potential ethnic-related differences between studies, to Caucasian women (WHIMS n = 6211, CoSTAR n = 250). Covariate adjustment was used to compare the postrandomization mean 3MS scores among the three active therapies with placebo therapy while controlling for differences between groups with respect to dementia risk factors.

RESULTS: At baseline, the average (SD) 3MS scores by group were 95.24 (4.28) for placebo, 95.19 (4.33) for CEE, 94.60 (4.76) for raloxifene, and 95.02 (4.03) for tamoxifen. Compared with placebo, each active therapy was associated with a small mean relative deficit in 3MS scores of

CONCLUSIONS: Although unmeasured differences between trials may have confounded analyses, these findings raise the possibility that both tamoxifen and raloxifene adversely affect cognitive function in older women; however, the magnitude of the effect is small, and the long-term consequences are unknown.

Study Type : Human Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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