Another microarray study [192] in the Fmr1 KO mouse showed the interaction of miR-34b, miR-340, and miR-148a with the Met 3′ UTR of the FMR1 gene, suggesting that alterations in the miRNA expression resulted from the absence of FMRP, could contribute to the molecular pathology of FXS. This evidence concerns the gene FMR1 and fragile X syndrome.