MALDI-TOF imaging mass spectrometry demonstrates sex- and age-dependent spatial changes in brain energy metabolism in response to amyloid stress using a mouse model of Alzheimers Disease
Using MALDI-TOF imaging mass spectrometry in a mouse model of Alzheimer's disease, this study reveals that sex is a dominant factor driving age-dependent spatial shifts in brain energy metabolism and histone lactylation, with females exhibiting distinct metabolic phenotypes and a decoupling of lactate-driven epigenetic regulation near amyloid plaques that may contribute to differential disease vulnerability.