7. MicroRNA Signatures
MicroRNAs are small RNA molecules that play a crucial role in regulating gene expression. Distinctive microRNA patterns in both blood and cerebrospinal fluid have been closely linked to the onset of Alzheimer’s disease. These molecular signatures may provide a highly sensitive method for early detection, well before traditional symptoms appear. Recent advances, as documented in Molecular Psychiatry, highlight microRNA profiling as a promising new frontier in Alzheimer’s diagnostics.