Resilient protein co-expression network in male orbitofrontal cortex layer 2/3 during human aging


The orbitofrontal cortex (OFC) is vulnerable to normal and pathological aging. Currently, layer resolution large-scale proteomic studies describing “normal” age-related alterations at OFC are not available. Here, we performed a large-scale exploratory high-throughput mass spectrometry-based protein analysis on OFC layer 2/3 from 15 “young” (15-43 years) and 18 “old” (62-88 years) human male subjects. We detected 4,193 proteins and identified 127 differently expressed proteins (DE) (p-value ≤0.05; effect size >20%), including 65 up- and 62 down-regulated proteins (e.g., GFAP, CALB1).📍

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