 The excised region or, mature product, of the miR-134 precursor is the microRNA mir-134.miR-134 was one of a number of microRNAs found to be increasingly expressed in schizophrenia.miR-134 is a brain-specific microRNA; in rats it is localised specifically in hippocampal neurons and may indirectly regulate synaptic development through antisense pairing with LIMK1 mRNA.