Altered static and dynamic intrinsic brain activity patterns in type 2 diabetic patients.

ABSTRACT: Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by chronic hyperglycemia resulting from insulin secretion and/or resistance. This study investigated intrinsic brain activity alterations using static and dynamic resting-state fMRI metrics in 65 T2DM patients versus 60 healthy controls. We analyzed fractional amplitude of low-frequency fluctuations (fALFF), dynamic fALFF (dfALFF) and dynamic functional stability(DFS). The T2DM group exhibited increased fALFF in the left inferior temporal gyrus and left fusiform gyrus and decreased fALFF in the bilateral precuneus, medial superior frontal gyrus, left inferior parietal lobule, and right supramarginal gyrus when compared with health controls. The T2DM group also showed increased dfALFF in the bilateral precuneus, left infe

SUBMITTER: Liang Y 

PROVIDER: S-EPMC12789552 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature