RT Journal Article T1 Sexual Regional Dimorphism of Post-Adolescent and Middle Age Brain Maturation. A Multi-center 3T MRI Study. A1 Delvecchio, Giuseppe A1 Maggioni, Eleonora A1 Pigoni, Alessandro A1 Crespo-Facorro, B A1 Nenadić, Igor A1 Benedetti, Francesco A1 Gaser, Christian A1 Sauer, Heinrich A1 Roiz-Santiañez, Roberto A1 Poletti, Sara A1 Rossetti, Maria G A1 Bellani, Marcella A1 Perlini, Cinzia A1 Ruggeri, Mirella A1 Diwadkar, Vaibhav A A1 Brambilla, Paolo K1 aging K1 healthy individuals K1 magnetic resonance imaging K1 sex differences K1 sexual dimorphism AB Sex-related differences are tied into neurodevelopmental and lifespan processes, beginning early in the perinatal and developmental phases and continue into adulthood. The present study was designed to investigate sexual dimorphism of changes in gray matter (GM) volume in post-adolescence, with a focus on early and middle-adulthood using a structural magnetic resonance imaging (MRI) dataset of healthy controls from the European Network on Psychosis, Affective disorders and Cognitive Trajectory (ENPACT). Three hundred and seventy three subjects underwent a 3.0 T MRI session across four European Centers. Age by sex effects on GM volumes were investigated using voxel-based morphometry (VBM) and the Automated Anatomical Labeling atlas regions (ROI). Females and males showed overlapping and non-overlapping patterns of GM volume changes during aging. Overlapping age-related changes emerged in bilateral frontal and temporal cortices, insula and thalamus. Both VBM and ROI analyses revealed non-overlapping changes in multiple regions, including cerebellum and vermis, bilateral mid frontal, mid occipital cortices, left inferior temporal and precentral gyri. These findings highlight the importance of accounting for sex differences in cross-sectional analyses, not only in the study of normative changes, but particularly in the context of psychiatric and neurologic disorders, wherein sex effects may be confounded with disease-related changes. SN 1663-4365 YR 2021 FD 2021-02-05 LK https://hdl.handle.net/10668/27376 UL https://hdl.handle.net/10668/27376 LA en DS RISalud RD Apr 12, 2025