GSR and pancreatic adenocarcinoma: In PAAD, SLC38A2 exhibits positive correlations with G6PD, GCLC, HPGDS, GSR, IDH1, GPX8, CHAC2, ODC1, RRM2B, LAP3, PGD, RRM2, GSTT2B, SMS, and PRDX6 (Figure 5D).