Journal article
Change in brain and lesion volumes after CEE therapies: the WHIMS-MRI studies
Neurology, Vol.82(5), pp.427-434
02/04/2014
DOI: 10.1212/WNL.0000000000000079
PMCID: PMC3917682
PMID: 24384646
Abstract
To determine whether smaller brain volumes in older women who had completed Women's Health Initiative (WHI)-assigned conjugated equine estrogen-based hormone therapy (HT), reported by WHI Memory Study (WHIMS)-MRI, correspond to a continuing increased rate of atrophy an average of 6.1 to 7.7 years later in WHIMS-MRI2.
A total of 1,230 WHI participants were contacted: 797 (64.8%) consented, and 729 (59%) were rescanned an average of 4.7 years after the initial MRI scan. Mean annual rates of change in total brain volume, the primary outcome, and rates of change in ischemic lesion volumes, the secondary outcome, were compared between treatment groups using mixed-effect models with adjustment for trial, clinical site, age, intracranial volumes, and time between MRI measures.
Total brain volume decreased an average of 3.22 cm(3)/y in the active arm and 3.07 cm(3)/y in the placebo arm (p = 0.53). Total ischemic lesion volumes increased in both arms at a rate of 0.12 cm(3)/y (p = 0.88).
Conjugated equine estrogen-based postmenopausal HT, previously assigned at WHI baseline, did not affect rates of decline in brain volumes or increases in brain lesion volumes during the 4.7 years between the initial and follow-up WHIMS-MRI studies. Smaller frontal lobe volumes were observed as persistent group differences among women assigned to active HT compared with placebo. Women with a history of cardiovascular disease treated with active HT, compared with placebo, had higher rates of accumulation in white matter lesion volume and total brain lesion volume. Further study may elucidate mechanisms that explain these findings.
Details
- Title: Subtitle
- Change in brain and lesion volumes after CEE therapies: the WHIMS-MRI studies
- Creators
- Laura H Coker - Wake Forest UniversityMark A EspelandPatricia E HoganSusan M ResnickR Nick BryanJennifer G RobinsonJoseph S GoveasChristos DavatzikosLewis H KullerJeff D WilliamsonCheryl D BushnellSally A Shumaker
- Contributors
- WHIMS-MRI Study Group (Institution)
- Resource Type
- Journal article
- Publication Details
- Neurology, Vol.82(5), pp.427-434
- Publisher
- United States
- DOI
- 10.1212/WNL.0000000000000079
- PMID
- 24384646
- PMCID
- PMC3917682
- ISSN
- 1526-632X
- eISSN
- 1526-632X
- Grant note
- DK092241 / NIDDK NIH HHS UL1 RR031973 / NCRR NIH HHS KO2 NS058760 / NINDS NIH HHS 1UL1RR031973 / NCRR NIH HHS U01HL096814-01 / NHLBI NIH HHS N01-WH-4-4221 / WHI NIH HHS
- Language
- English
- Date published
- 02/04/2014
- Academic Unit
- Epidemiology; Internal Medicine
- Record Identifier
- 9983995115402771
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