Effect of enteral and parenteral nutritional diet intervention on recovery, nutritional status and immune functi on for gastric cancer patients after radical gastrectomy

Objective:To explore the effect of enteral and parenteral nutritional diet intervention on recovery, nutritional status and immune function for gastric cancer patients after radical gastrectomy.Methods:A total of 180 patients with gastric cancer treated in our hospital from January 2016 to December 2017 were selected, and randomly divided into the control group and the observation group by computer, each with 90 cases. Control group received parenteral nutrition intervention, and observation group received enteral and parenteral nutritional diet intervention. Cellular immune function, humoral immune function, nutritional status, and complications occurrence rate were compared between two groups.Results: The levels of cellular immune function between the two groups had no difference before intervention (P>0.05). After intervention, the observation group had higher levels of CD3+, CD4+, and CD4+/CD8+ as well as lower level of CD8+ than those of control group (P<0.05). The IgM, IgA, and IgG levels between the two groups had no difference before treatment (P>0.05), which were decreased after treatment (P<0.05), and were lower in the observation group than those in the control group (P<0.05). The albumin and prealbumin levels between the two groups had no difference before intervention (P>0.05), which were increased after treatment, and were higher in observation group than those in the control group (P<0.05). The incidence of complications in the observation group was significantly lower than that in the control group (P<0.05).Conclusion:The application of enteral and parenteral nutritional diet intervention can promote the recovery, improve the nutritional status and immune function for gastric cancer patients after radical gastrectomy, which has fewer complications.

Multi-symplectic method for the generalized(2+1)-dimensionalKdV-mKdV equation

In the present paper, a general solution involv- ing three arbitrary functions for the generalized （2＋1）- dimensional KdV-mKdV equation, which is derived from the generalized （1＋1）-dimensional KdV-mKdV equa- tion, is first introduced by means of the Wiess, Tabor, Carnevale （WTC） truncation method. And then multi- symplectic formulations with several conservation laws taken into account are presented for the generalized （2＋1）- dimensional KdV-mKdV equation based on the multi- symplectic theory of Bridges. Subsequently, in order to simulate the periodic wave solutions in terms of rational functions of the Jacobi elliptic functions derived from thegeneral solution, a semi-implicit multi-symplectic scheme is constructed that is equivalent 1：o the Preissmann scheme. From the results of the numerical experiments, we can con- clude that the multi-symplectic schemes can accurately sim- ulate the periodic wave solutions of the generalized （2＋1）- dimensional KdV-mKdV equation while preserve approxi- mately the conservation laws.