For example, AHO-like syndrome, or brachydactyly and mental retardation syndrome (BDMR, OMIM#600430), as its name indicates, includes a group of patients who show several features of AHO (BDE and mental retardation being the most notable) but with normal Gsα levels and with no endocrine abnormality [8]. This evidence concerns the gene GNAS and pseudohypoparathyroidism type 1A.