FAT1 and facioscapulohumeral muscular dystrophy: In contrast to foetal stages, analysis of FAT1 mRNA levels in a series of adult FSHD1 biopsies or FSHD-derived myoblasts did not reveal any significant change compared to control biopsies or myoblasts (data not shown), a result consistent with published data [10], [60], or with data available on GEO NCBI.