Neuroglia's signaling: orchestrating neuronal gamma synchrony?

PURPOSE OF REVIEW: Gamma oscillations (30-80 Hz) play a crucial role in sensory processing and cognitive functions, with disruptions in these rhythms linked to neurological disorders such as schizophrenia and Alzheimer's disease. This review highlights the emerging role of astrocytes in regulating gamma oscillations, emphasizing their contribution to the inhibitory tone and extracellular ion homeostasis. RECENT FINDINGS: Recent studies suggest that astrocytes facilitate gamma synchrony, while dysfunction in astrocytic activity - such as impaired Ca 2+ signaling - is associated with deficits in gamma oscillations and increased network hyperexcitability. Thus, astrocytic dysfunction may contribute to the pathophysiology of gamma-related disorders. SUMMARY: By examining the role of astrocytes in maintaining neuronal network stability, this review highlights new aspects of neuroglia signaling.