AKT1 and brain infarction: In separate regression analyses, greater AKT1 phosphorylation at T308 following ex vivo stimulation with insulin (OR = 1.916; estimate = 0.650; p = 0.007) and greater pS616IRS1 immunolabeling in neuronal cytoplasm (OR = 1.610; estimate = 0.476; p = 0.013), were each associated with a higher number of brain infarcts.