Gaucher disease (GD, OMIM #230800, ORPHA355) is a rare autosomal recessive genetic disorder resulting from mutations in the GBA1 gene located on chromosome 1 (1q21), which codes for the lysosomal enzyme glucocerebrosidase (GCase or glucosylceramidase or acid β-glucosidase 1 EC: 4.2.1.25) [1,2,3,4,5,6,7]. This evidence concerns the gene GBA1 and Gaucher disease.