CD4 and gastric cancer: In addition, giving fish oil resulted in a higher CD4+ T‐cell proportion and CD4+/CD8+ ratio, enhanced the peritoneal phagocytic activity of macrophages, and reduced leukocyte adhesion molecule expression in rats with total gastrectomy.31 An in vitro study carried out in our laboratory also showed that EPA and DHA inhibited macrophage‐induced GC cell migration, implying the beneficial effects of EPA/DHA in GC treatment.32 Fat emulsions containing LCT and MCT are commonly used in PN.