In addition, we found that the expression levels of SLC30A1, SLC30A5, SLC30A6 and SLC30A7 were significantly elevated, while the expression level of SLC30A4 was significantly decreased in gastric adenocarcinoma tissues compared with both normal gastric tissues and matched normal gastric tissues (Fig. 1b). The gene discussed is SLC30A4; the disease is gastric adenocarcinoma.