ABSTRACT
Objective To investigate the influence of the fish oil fatty acid (rich in ω-3 polyunsaturated fatty acids ) acting on the cellular immune and inflammatory response of perioperative patients of gastrointestinal tumors .Methods 79 gastrointestinal tumors patients who took total parenteral nutrition (TPN)after operation are divided into 2 groups randomly(collected from July 2010 to June 2012) .39 patients in study group are supplied with fish oil fatty acid within 24 h after operation and 7 d in total .40 pa-tients in the control group are supplied with ordinary long chain fat emulsion within 24 h after operation ,7 d as a course .The per-centage and the ratio of T lymphocyte subsets(CD3 ,CD4 ,CD8) ,monocyte human leukocyte antigen DR(HLA-DR) expression(per-centage) and the number of monocytes of 2 groups were test by blood test at 1st and 8th day after operation .Results The ratio of CD3、CD4、CD8、CD4/CD8 ,monocyte(HLA-DR) expression(percentage) and the number of monocytes in the study group were sig-nificantly higher than that of control group after received fish oil fat emulsion (P0 .05) .However ,compared with their results shown that they all had obvious difference respectively by a eight-day observation(P0 .05) .Conclusion Given the fat emulsion of fish oil which is rich in ω-3 poly-unsaturated fatty acid can significantly improve the cellular immune function of postoperative patients and release the inflammatory response after operation in patients of gastrointestinal tumors .