AIM To study the effect and mechanism of valdecoxib, a selective COX 2 inhibitor, on human gastric cancer BGC 823 cells.

• 目的 探讨选择性环氧化酶 2 (COX 2 )抑制剂戊地昔布对人胃癌BGC 82 3细胞的作用及其作用机制。