ArticleNeurology2015
Postmenopausal hormone therapy, type 2 diabetes mellitus, and brain volumes.
Article in Neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
21 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.
- Long-term hormone therapy for perimenopausal and postmenopausal women.The Cochrane database of systematic reviews · 2017Pooled it
- Associations between cognitive function and endogenous levels of estradiol and testosterone in adults with type 2 diabetes.Journal of diabetes and its complications · 2022Trial
- Cardiometabolic measures and cognition in early menopause - Analysis of baseline data from a randomized controlled trial.Maturitas · 2022Trial
- Sex-related differences in the prevalence of cognitive impairment among overweight and obese adults with type 2 diabetes.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2018Trial
- Brain structure and cognition 3 years after the end of an early menopausal hormone therapy trial.Neurology · 2018Trial
- Long-term Effects on Cognitive Trajectories of Postmenopausal Hormone Therapy in Two Age Groups.The journals of gerontology. Series A, Biological sciences and medical sciences · 2017Trial
- Impact of Type 2 Diabetes and Postmenopausal Hormone Therapy on Incidence of Cognitive Impairment in Older Women.Diabetes care · 2015Trial
- High-fat diet attenuates estradiol's efficacy on cognitive function and hippocampal synaptic plasticity in middle-aged ovariectomized mice.Physiological reports · 2026Article
- The Benefits of Estradiol on Cognitive Aging in Rats Are Independent From Its Effects on Cardiometabolic Health.Endocrinology · 2025Article
- Trends in Alzheimer's-Related Mortality Among Type 2 Diabetes Patients in the United States: 1999-2019.Endocrinology, diabetes & metabolism · 2025Review
- Connections between reproductive health and cognitive aging among women enrolled in the HCHS/SOL and SOL-INCA.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Cardiometabolic health, menopausal estrogen therapy and the brain: How effects of estrogens diverge in healthy and unhealthy preclinical models of aging.Frontiers in neuroendocrinology · 2023Review
- Precision hormone therapy: identification of positive responders.Climacteric : the journal of the International Menopause Society · 2021Review
- Interactions between estradiol, diabetes, and brain aging and the risk for cognitive impairment.Climacteric : the journal of the International Menopause Society · 2021Review
- Neuroactive Steroids and Sex-Dimorphic Nervous Damage Induced by Diabetes Mellitus.Cellular and molecular neurobiology · 2019Review
- Increased Alzheimer's risk during the menopause transition: A 3-year longitudinal brain imaging study.PloS one · 2018Article
- Female Sex and Alzheimer's Risk: The Menopause Connection.The journal of prevention of Alzheimer's disease · 2018Review
- Sex and post-menopause hormone therapy effects on hippocampal volume and verbal memory.Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition · 2017Article
- Perimenopause and emergence of an Alzheimer's bioenergetic phenotype in brain and periphery.PloS one · 2017Article
- Sex biology contributions to vulnerability to Alzheimer's disease: A think tank convened by the Women's Alzheimer's Research Initiative.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2016Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveTo examine whether the effect of postmenopausal hormone therapy (HT) on brain volumes in women aged 65-79 years differs depending on type 2 diabetes status during postintervention follow-up of a randomized controlled clinical trial.
methodsThe Women's Health Initiative randomized clinical trials assigned women to HT (0.625 mg/day conjugated equine estrogens with or without 2.5 mg/day medroxyprogesterone acetate) or placebo for an average of 5.6 years. A total of 1,402 trial participants underwent brain MRI 2.4 years after the trials; these were repeated in 699 women 4.7 years later. General linear models were used to assess the interaction between diabetes status and HT assignment on brain volumes.
resultsWomen with diabetes at baseline or during follow-up who had been assigned to HT compared to placebo had mean decrement in total brain volume of -18.6 mL (95% confidence interval [CI] -29.6, -7.6). For women without diabetes, this mean decrement was -0.4 (95% CI -3.8, 3.0) (interaction p=0.002). This interaction was evident for total gray matter (p<0.001) and hippocampal (p=0.006) volumes. It was not evident for changes in brain volumes over follow-up or for ischemic lesion volumes and was not influenced by diabetes duration or oral medications.
conclusionsFor women aged 65 years or older who are at increased risk for brain atrophy due to type 2 diabetes, prescription of postmenopausal HT is associated with lower gray matter (total and hippocampal) volumes. Interactions with diabetes and insulin resistance may explain divergent findings on how estrogen influences brain volume among older women.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.