Drugs will be affected by various factors in the body, with the increasing of human food varieties and the diversity of dietary structure, food has increasingly become a factor that can not be ignored, especially oral drugs. It may occur in the astrointestinal tube firstly by various physical and chemical reactions, and then affect the PK and PD of the drug, leading to changes in drug treatment outcoming. Equally, drugs may also affect the appetite and the absorption and utilization of the food and nutrients, leading to nutrient disorder or imbalance. Now people take more attention on this area. This paper introduces the classification and occurrencing lacation of the interaction between food and drug, some food, especially grapefruit juice and some other fruit juice, affecting the inhibitory pathway of the CYP3A enzyme system on the drug metabolism, and the effect of the drug on the absorption, metabolism and excretion of food, and the common interaction of oral antitumor drugs and food and the cautions for use . Clinical medical staff and pharmacists should understand and master the basic knowledge and common examples of food and drug interactions, educate patients about rational use of drugs, avoiding taking interacting foods, which could reduce the drug induced damage or treatment failure due to improper diet and achieve the optimal treatment effect.
Objective To explore the expression of survivin mRNA in peripheral blood of patients with colorectal cancer and its clinical significance. Methods SPSS16.0 software was used for statistical analysis. χ2 test was used. Collected 90 patients with colorectal cancer and 60 patients with colorectal adenoma disease in general surgery of baoding first central hospital. 60 healthy people were selected as control group during the same period. The expression of Survivin in serum of patients with colorectal cancer, patients with colorectal adenoma disease and healthy controls before operation was detected and compared by nested RT-PCR. To analyze the correlation between the level of Survivin mRNA in serum of patients with colorectal cancer and clinicopathological features such as stage, pathological type, degree of differentiation and distant metastasis after operation. Results Survivin was not expressed in healthy people. Survivin was expressed in 2 patients with benign colorectal adenoma (3.33%) and 49 patients with colorectal cancer (54.44%) in peripheral blood. The expression rate of survivin was closely related to tumor stage and distant metastasis (P<0.05). Significant correlation (P>0.05). Conclusions The expression of survivin in peripheral blood of patients with colorectal cancer is significantly up-regulated, which is closely related to the stage and distant metastasis of colorectal cancer. It can be used as a good molecular marker to detect metastasis in peripheral blood of patients with colorectal cancer and to evaluate the progress of cancer.