Three Ambion kits were used to quantitate specific miRNAs and to detect differential miRNA expression in various mouse brain regions and cell types isolated by laser capture microdissection (LCM). These techniques can be applied to studying miRNA in other species, tissues, and cell types. Includes: Obtain Laser Capture Microdissected Samples; Isolate miRNA from LCM Samples; Quantitate miRNA by qRT-PCR.