VDR and myositis disease: Our aim was also to identify whether an association exists between VDR gene polymorphisms and some significant markers of myositis: the phenotype of disease, age at disease onset, gender, the presence of myositis-specific autoantibodies, or the presence of osteoporosis. BsmI, ApaI, and TaqI have been shown to be in strong linkage disequilibrium (LD) [23].