ArticleAlzheimer's research & therapy2022
Gender-specific relationship between thigh muscle and fat mass and brain amyloid-β positivity.
Article in Alzheimer's research & therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 12 citations in OpenAlex.
- Mapping sex-specific associations of adiposity with age-related cognitive decline and multimodal Alzheimer's pathology.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Abdominal adiposity and Alzheimer's disease imaging markers across sex and race at midlife.Journal of Alzheimer's disease : JAD · 2026Article
- β-amyloid and β-amyloid precursor protein synthesis and processing: effects of exercise and exercise-related injury.Frontiers in cellular neuroscience · 2026Review
- Imaging Biomarkers of Cognitive Impairment in Sarcopenia: A Narrative Review.International journal of general medicine · 2026Review
- Temporal Muscle Thickness as a New Biomarker: Its Association With Alzheimer Pathology and Cognitive Impairment in Chinese Adults.Journal of cachexia, sarcopenia and muscle · 2025Article
- Sarcopenia is a predictor for Alzheimer's continuum and related clinical outcomes.Scientific reports · 2024Article
- Different associations between body mass index and Alzheimer's markers depending on metabolic health.Alzheimer's research & therapy · 2024Article
- Development of a prediction model for cognitive impairment of sarcopenia using multimodal neuroimaging in non-demented older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Effects and mechanisms of APP and its cleavage product Aβ in the comorbidity of sarcopenia and Alzheimer's disease.Frontiers in aging neuroscience · 2024Review
- The QPLEX™ Plus Assay Kit for the Early Clinical Diagnosis of Alzheimer's Disease.International journal of molecular sciences · 2023Article
- Prevalence and Mechanisms of Skeletal Muscle Atrophy in Metabolic Conditions.International journal of molecular sciences · 2023Review
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Authors and funding
12 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe relationship of specific body composition in the thighs and brain amyloid-beta (Aβ) deposition remained unclear, although there were growing evidence that higher muscle and fat mass in thighs had a protective effect against cardiometabolic syndromes. To determine whether muscle mass and fat mass in the thighs affected amyloid-beta (Aβ) positivity differently in relation to gender, we investigated the association of muscle mass and fat mass with Aβ positivity using positron emission tomography (PET) in individuals without dementia.
methodsWe recruited 240 participants (134 [55.8%] males, 106 [44.2%] females) without dementia ≥45 years of age who underwent Aβ PET, bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DEXA) scans of the hip in the health promotion center at Samsung Medical Center in Seoul, Korea. Lower extremity skeletal muscle mass index (LASMI) was measured using BIA, and gluteofemoral fat percentage (GFFP) was estimated using DEXA scans of the hip. We investigated the associations of LASMI and GFFP with Aβ positivity using logistic regression analyses after controlling for age, APOE4 genotype, and cognitive stage.
resultsHigher muscle mass in the thighs, measured as LASMI (odds ratio [OR]=0.27, 95% confidence interval [CI] 0.08 to 0.84, p=0.031) was associated with a lesser risk of Aβ positivity in only females. Higher fat mass in the thighs, measured as GFFP (OR=0.84, 95% CI 0.73 to 0.95, p=0.008) was associated with a lesser risk of Aβ positivity in only males. However, the association between LAMSI (p for interaction= 0.810), GFFP (p for interaction= 0.075) and Aβ positivity did not significantly differ by gender. Furthermore, LAMSI only negatively correlated with centiloid (CL) values in females (r=-0.205, p=0.037), and GFFP only negatively correlated with CL values only in males (r=-0.253, p=0.004).
conclusionsOur findings highlight the importance of recognizing that gender differences exist with respect to the specific body composition to potentially protect against Aβ deposition. Therefore, our results may help in designing gender-specific strategies for controlling body composition to prevent Aβ deposition.
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