The decreased N-glycan peaks in the IgD MM patients presented a negative association with the serum or urine light chain ratios and a positive association with Hb, such as NGA2F versus the urine light chain ratio; NG1(6)A2F or NG1(3)A2F versus Hb and the serum/urine light chain ratio (Table 3). This evidence concerns the gene GSTM1 and Miyoshi myopathy.