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Communication Dans Un Congrès Année : 2023

Impact of sex and APOE-ε4 genotype on regional brain metabolism in Alzheimer's Disease

Résumé

Age, sex and APOE-ε4 genotype have been identified as the strongest predictors of the risk of developing Alzheimer's Disease (AD). This work models the pathological progression of regional brain hypometabolism, using mixed-effect models with latent time variable and longitudinal FDG-PET data. Statistical comparisons then disentangle the effects of sex and APOE-ε4 genotype on the onset age and pace of progression of hympometabolism in each brain region, while correcting for education level. They provide a brain map of the regions with earlier and/or faster alterations of the metabolism. We show that females are associated with faster hypometabolism in the caudate nuclei, the thalamus and right temporal and medial-occipital lobes, while APOE-ε4 is associated with earlier hypometabolism in the limbic system (hippocampus, parahippocampus and amygdala) and temporal lobe.
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Dates et versions

hal-03951468 , version 1 (23-01-2023)

Identifiants

  • HAL Id : hal-03951468 , version 1

Citer

Benoît Sauty, Stanley Durrleman​. Impact of sex and APOE-ε4 genotype on regional brain metabolism in Alzheimer's Disease. ISBI 2023 - IEEE 20th International Symposium on Biomedical Imaging, Apr 2023, Cartagena (Colombia), Colombia. ⟨hal-03951468⟩
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