P. Delforge bulbs and roots, testing the activity of superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST) enzymes in polymorphonuclear leukocytes (PMN); antimicrobial activity against Escherichia coli DH5α and Staphylococcus aureus ATCC 6538P, antiproliferative and proapoptotic activity on gastric cancer cell lines. This evidence concerns the gene CAT and gastric cancer.