Information on how detect and quantitate MicroRNA in laser capture microdissection samples. Includes: Obtain Laser Capture Microdissected Samples; Isolate miRNA from LCM Samples; Quantitate miRNA by qRT-PCR; Detection of miRNA in Microdissected Tissue from Mouse Brain by qRT-PCR; Differential Expression of MicroRNA in Whole Brain Tissue Compared to a More Homogeneous Population of Cells.