Objective: To investigate the effect of panax japlcus var polysaccharide (PJPS) on the proliferation and apoptosis of gastric cancer MKN45 cells and its regulatory mechanism. Methods: Human gastric cancer cell lines (HGC27, MGC803, MKN45) and gastric mucosal epithelial cell line GES-1 were selected for this study. Let-7a mimics and let-7a inhibitor were transfected into MKN45 cells; Gastric cancer cell lines were treated with 100 μg/ml PJPS and MKN45 was selected as the subsequent experimental cell line. MKN45 cells were cultured with 0, 10, 50, 100 and 120 μg/ml PJPS, respectively. The proliferation and apoptosis rate of MKN45 cells were detected by CCK-8 and flow cytometry, respectively. Expressions of cell cycle dependent kinase 6 (CDK6) and apoptosis-related proteins in MKN45 cells were detected by Western blotting, and the expression level of miRNAs regulating the proliferation of gastric cancer cells was detectedbyReal-timequantitativePCR(qPCR).TheDualluciferasereportergeneassaywasusedtovalidatethetargeting relationship between let-7a and CDK6. Results: Compared with other gastric cancer cells, 100 μg/ml PJPS significantly inhibited the proliferation of MKN45 cells (P<0.01). At the same time, 100 μg/ml PJPS significantly up-regulated the expression of let-7a in MKN45 cells (P<0.01). The Dual luciferase reporter gene assay confirmed that CDK6 was the target gene of let-7a. Furthermore, PJPS inhibited the expression of CDK6 by up-regulating let-7a, thereby inhibiting the proliferation and inducing apoptosis of MKN45 cells (all P<0.01). Conclusion: PJPS inhibits proliferation and induces apoptosis of gastric cancer MKN45 cells by regulating the let-7a/ CDK6 axis.

Objective To evaluate the influencing factors and early recovery quality in elderly patients with gastrointestinal tumor resection by the quality of recovery-40 questionnaire (QoR-40 questionnaire). Methods One hundred and forty- two elderly patients who had underwent gastrointestinal tumor resection from February to June 2017 were selected. The patients were over 65 years old. Their body mass index was (22.98 ± 3.20) kg/m2, and American Society of Anesthesilogists (ASA) wasⅡorⅢgrade. The patients were assessed with QoR-40 questionnaire on the first and second day after operation, and the factors affecting the total score of QoR-40 questionnaire on the first and second day after operation were analyzed. Results Compared with those on the first day after operation, the scores of emotional status, physical comfort, psychological support, physical independence, pain and total score of QoR-40 questionnaire on the second day after operation were significantly higher: 42 (39, 43) scores vs. 40 (38, 42) scores, 53 (52, 54) scores vs. 52 (50, 53) scores, 35 (35, 35) scores vs. 35 (34, 35) scores, 15 (13, 15) scores vs. 14 (12, 15) scores, 34 (33, 35) scores vs. 33 (32, 34) scores and 178 (173, 182) scores vs. 174 (169, 177) scores, and there were statistical differences (P<0.01). On the first day after operation, the total score of the QoR-40 questionnaire was related with the type of operation (P<0.05), and it was not related with age, sex and anesthesia (P>0.05);on the second day after operation, the total score of QoR-40 questionnaire was related with age and operation type (P<0.05), and it was not related with sex and anesthesia (P > 0.05). Conclusions The early postoperative period score of QoR-40 questionnaire in patients with colorectal tumor resection and age less than 70 years old is higher, and the recovery quality after operation is relatively good, suggesting that the operation type and age may be an important factor affecting the early recovery quality of the elderly patients with gastrointestinal tumor resection.

OBJECTIVE：To estab lish“TCM Data Analysis Platform Based on Strategy Pattern ”（TCMDP），and to analyze the medication rules of TCM prescription against primary hepatic carcinoma （PHC），so as to provide reference for TCM prescription screening. METHODS ：According to the idea of strategy pattern ，TCMDP software was developed ，and the frequency statistics，association，clustering，classification and other methods and the different algorithms covered were encapsulated. Effective TCM prescriptions against PHC were collected and screened from 4 tertiary-grade class-A hospitals in Nanchang city and CNKI ， PubMed. A database of prescriptions for PHC （PDOPHC）was established ，and TCM prescriptions in the data base were put into TCMDP. Clustering algorithm modified by CMC-DD ，modified WD-Get Rules algorithm after merging depth and width search and frequency statistics were used to analyze the distribution of prescription syndrome. Taking phlegm-blood stasis syndrome type （TYPHC）as example ，data mining was carried out on drug efficacy category ，four properties ，five flavors and channel tropism ， drug property combination ，key couplet medicines and key drug combination. RESULTS ：A total of 907 TCM prescriptions against PHC were collected ，mainly involving 10 syndrome types ，such as phlegm-blood stasis syndrome ，deficiency of the vital essential and blood stasis syndrome and liver and spleen blood stasis syndrome. TCM related to TYPHC commonly used in pre- scriptions were tonifying deficiency medicine ， phlegm-re- solving medicine ，promoting blood circulation and removing blood stasi s medicine ，etc．Four properties were mostly cold ，warm and calm ；the five flavors were most ly swe et，bitter and pungent ；channel tropism were mostly spleen ，liver，stomach， lung，heart and kidney ；drug combination were mostly warming-sweet-spleen ，warming-pungent-spleen and cold-bitter-liver ，etc.； there were 36 couplet medicines with frequency ≥30 times；there were 31 strong association rules and 8 key drug combinations in the prescriptions. WD-Get Rules results showed that in the TCM prescriptions against PHC ，Atractylodes macrocephala ，Codonopsis pilosula，Poria cocos and Glycyrrhiza uralensis were in the key position. They were often combined with many kinds of drugs ， which were related to the effect of Sijunzi decoction on strengthening Qi and tonifying spleen. CMC-DD results showed that therapy for TYPHC focused on strengthening the spleen and stomach ，replenishing Qi and blood ；and at the same time ，it treated TYPHC with phlegm-blood stasis syndrome from multiple angles ，such as soothing the liver and regulating Qi ，eliminating phlegm ，clearing heat and detoxification ，promoting blood circulation and nourishing Yin. CONCLUSIONS ：Clinical treatment of TYPHC mainly adopts the methods of invigorating the spleen and replenishing Qi ，soothing the liver and regulating Qi ，promoting blood circulation and removing blood stasis ，which conforms to the medication principle of “strengthening the body and eliminating pathogenic factors”. The application of TCMDP can realize the data mining and analysis of TCM in multi-level and multi-directional way ， which provides a new and effective way for the mining and research of compatibility rules of TCM prescriptions.