Objective:To observe and compare the therapeutic effect of metoprolol by routine increasing dose method and rapid titration method on acute myocardial infarction (AMI).Methods:A total of 60 inpatients,who were di-agnosed with AMI within 24h and without contraindications for metoprolol,were randomly divided into two groups:routine therapy group (received metoprolol using routine methods,the dose was added in seven days)and rapid ti-tration group (metoprolol was added in three days using titration).The dosage maintained with 190 mg/d after both groups reaching the target dose of 190mg/d;then therapeutic effects were observed in both groups.Results: ①There were no re-myocardial infarction,rehospitalization caused by heart failure and sudden death etc.in both groups;② Patients received echocardiography in outpatients after three months.Compared with routine increasing dose group,there was significant reduction in left ventricular end-diastolic diameter [LVEDd,(55.00±7.56)mm vs.(50.00± 5.81)mm]and significant rise in left ventricular ejection fraction [LVEF,(49.13 ± 10.18)% vs. (57.84±10.34)%]in rapid titration group,P <0.01 both.Conclusion:Rapid titration method could make the pa-tients rapidly reach the targeted dose of metoprolol and inhibit renin release earlier,block the renin-angiotensin sys-tem,and improve myocardial remodeling and cardiac function.

Objective To study the change of Yes-associated protein (YAP) expression in rectal cancer and to explore the significance of YAP in rectal cancer.Methods Reverse transcriptase polymerase chain reaction(PT-PCR) and Western bloting technology were used to detect mRNA and protein expression of YAP in 30 patients with rectal cancer and 10 cases of normal rectal mucosa tissue.Results The expressions of mRNA and protein of YAP in rectal cancer were significantly higher than those in normal rectal mucosa tissue (73.2 ± 1 1.1 vs.10.4 ± 4.1,65.7 ± 9.5 vs.9.2 ± 4.3,P ＜ 0.05).Conclusion YAP high expression is related to the occurrence of rectal cancer.

AIM: To investigate the effect of Shenmai Injection on the expression of bFGF and PCNA of gastric cancer in mouse. METHODS: RT-PCR was used to measure the expression of bFGF and PCNA in gastric cancer cell cultured with Shenmai Injection in three concentrations.immunohistochemistry used for protein synthesis in mouse gastric cancer model. RESULTS: 140 ?L/mL of Shenmai Injection concentration inhibited 63% of bFGF and PCNA gene expression. CONCLUSION: Shenmai Injection can inhibit the express of bFGF and PCNA.

Objective To construct four expression plasmids, pcDNA3.1-GFP/HPV6bE6, pcDNA3.1-GFP/HPV6bE7, pcDNA3.1-GFP/HPV11E6, pcDNA3.1-GFP/HPV11E7 and their transfected murine cell lines. Methods The Four recombinant expression plasmids comprising HPV6bE6,HPV6bE7,HPV11E6 and HPV11E7 linked with GFP, respectively, were constructed and transfected to B16 cells by lipofectamine kit. Positive clones were selected by G418 and observed by fluorescent microscopy and identified by RT-PCR. Results The four constructed recombinant plasmids were authenticated by restriction enzyme digestion and DNA sequencing. Under the fluorescent microscope, the green fluorescence could be observed in cytoplasm and nucleus of four transfected B16 cell lines. The RNA extracted from positively transfected clones resistant to G418 were analyzed by RT-PCR, which demonstrated the presence of four expected fragments. Conclusions The transfected murine cell lines B16 can express HPV6bE6,HPV6bE7,HPV11E6 and HPV11E7 gene. These transfected cell lines can be further transplanted to mice in order to investigate the biological properties and immunological mechanisms of these genes in vivo.

Sciatic neurectomy was performed on the right limb in 30 rats divided into three groups. On the first postoperative days, stainless steel capacitor plates were applied parallel to each other over the midtibial region of the right, neurectomized limb m each animal in the latter two groups, which were stimulated continuously with a 60kHz sinawave signal delivering 5-10V from peak to peak. The first group was served as controls and received no electrical stimulation. At the completion of 12d of electrical stimulation, all rats were sacrificed. A statistically significant enhancement of wet weight, dry weight, ashed weight, ultimate strength and bone density occurred in the stimulated, denervated tibiae of the experimental animals compared with the nonstimulated, denervated tibiae of the control animals. The results show that a sciatic neurectomized osteoporosis was prevented in the tibiae by a capacitively coupled electrical field.

Objective To investigate the antitumor effects of IL-18 gene transfected T cells on pancreatic cancer cell SW-1990.Methods Construction of IL-18 contained recombinant lentivirus using PCR method and packaged at HEK293T cell, then transfected the human T cells and evaluated the antitumor effects when cocultured with SW-1990.Results The IL-18 gene contained recombinant lentivirus was successfully constructed and packaged, and transfected the T cells, the LDH secretion and IL-2 and IFN-γ content all increased significantly (P<0.01) when cocultured with SW-1990 cell.Conclusions T cells transfected with IL-18 possessed more potent antitumor effects to pancreatic cancer cell SW-1990 as compared to the regular T cells.

OBJECTIVETo obtain transgenic Pinellia ternata plants resistant to fungus by transfer Chitinase and beta-1,3-Glucanase gene from Trichoderma harzianum.

METHODUsing hygromycin phosphotransferase as the selection marker, the Chitinase gene (ech42), beta-1,3-Glucanase gene (gluc78) and both gene pCAMBIA(ech42 + gluc78) driven by CaMV35S promoter were transferred into P. ternata callus via Agrobacterium-mediated transformation.

RESULTPCR results confirmed that the regenerants were identified to be transgenic lines and the RT-PCR results confirmed that foreign genes construction were transfer to mRNA. Two foreign genes were inherited stably to T5 generation according to PCR results of the lines.

CONCLUSIONThe results showed that chitinase gene ech42 and beta-1, 3-glucanase gene gluc78 respectively or together introducing and co-integrating into P. ternata

Agrobacterium tumefaciens ; genetics ; metabolism ; Chitinases ; genetics ; metabolism ; Fungal Proteins ; genetics ; metabolism ; Gene Expression Regulation, Plant ; Gene Transfer Techniques ; Genetic Vectors ; genetics ; metabolism ; Glucan 1,3-beta-Glucosidase ; genetics ; metabolism ; Pinellia ; genetics ; metabolism ; Transformation, Genetic ; Trichoderma ; enzymology

[Abstract] Objective: To investigate the effects of interleukin-18 over-expression on the in vitro and in vivo proliferation of human colorectal cancer (CRC) HCT-116 cells. Methods: A recombinant lentivirus vector containing human IL-18 gene fragment was constructed. Then theCRC HCT-116 cell line stably expressing human IL-18 (HCT-116/IL-18) was obtained by recombinant lentivirus transfection. In vitro proliferation of HCT-116/IL-18 cells and wild-type HCT-116 cells was determined by CCK-8 method. The expressions of IL-18, Cyclin D1, proliferating cell nuclear antigen (PCNA) and DNA damage repair enzyme (PARP) were detected by Western blotting. HCT-116 and HCT-116/IL-18 cells were inoculated into left and right axillas of Balb/c nude mice, respectively. Then the tumorigenicity and the growth of transplanted tumor were observed. The expressions of IL-18 and PCNAin xenograft tissues were detected by immunohistochemistry analysis. Results: IL-18 gene over-expression in HCT-116 cells could delay the proliferation of HCT-116 cells (P<0.05 or P<0.01). PARP expression was increased significantly and PCNA, Cyclin D1 expression were decreased in HCT-116/ IL-18 cells as compared to that of HCT-116 cells (P<0.01).The tumorigenicity of HCT-116/IL-18 cell was significantly decreased in nude mice with a tumor-formation rate of 43%; Compared with control group, HCT-116/IL-18cell line had a longer tumorigensis time, slower growth and smaller tumor volume; moreover, PCNAprotein expression was down-regulated in HCT-116/IL-18 xenograft tissuesas shown by immunohistochemistry analysis (P<0.01). Conclusion: IL-18 over-expression inhibited the growth and proliferation of HCT-116 cells both in vitro and in vivo, and the mechanism might berelated with IL-18 regulating cell cycle and promoting DNA damage.

Objectiveto investigate the differential expression of intestinal flora and serum metabolites and potential biomarkers in patients with pre-diabetic sputum syndrome. MethodA total of 34 patients with pre-diabetic sputum syndrome were included as the phlegm syndrome group，and 37 healthy people were selected as the normal group. Serum and fecal samples of the two groups were collected，and liquid chromatography-mass spectrometry （LC-MS） non-targeted metabolomics and 16S rRNA high-throughput sequencing technology were used to detect serum metabolites and different intestinal flora of the two groups and explore the relationship among pre-diabetic sputum syndrome，serum metabolites，and intestinal flora. ResultIn the distribution of disease syndrome elements in the phlegm syndrome group，the first five disease syndrome elements in terms of frequency and proportion were dampness （73.53%），Qi stagnation （58.82%），Yin deficiency （50.00%），blood stasis （41.18%），and heat （35.29%）. According to the frequency and proportion of disease location syndrome elements，the first three main disease location syndrome elements were spleen （100.00%），liver （41.18%），and kidney （23.53%）. The results of 16S rRNA high-throughput sequencing showed that there were 44 different intestinal flora between the two groups. In order genus，there were significant differences in Bifidobacterium，Veillonococcus，and Roseococcus between the two groups （P<0.05）. The diversity，abundance，and evenness of intestinal flora in the phlegm syndrome group were lower than those in the normal group，with the difference not statistically significant. There was no significant difference in the community structure between two groups. The results of serum metabolomics showed that there were 13 differential metabolites in the two groups，which were mainly concentrated in amino acid metabolism，bile secretion，bile acid biosynthesis，and lipid metabolism （P<0.05）. The correlation among differential metabolites，intestinal flora，and syndrome elements was analyzed，and the results showed that ① lysine was positively correlated with spleen，Yin deficiency，and blood stasis，while taurocholic acid was positively correlated with liver，kidney，blood stasis，and dampness，and there was a positive correlation between taurocholic acid and yin deficiency and heat. The taurochenodeoxycholic acid was positively correlated with liver and dampness，and there was a negative correlation between arachidonic acid and dampness，as well as a positive correlation between glucose and spleen and blood stasis. ② Clostridium was positively correlated with spleen，kidney，Yin deficiency，and Qi stagnation. Rosepiella was negatively correlated with spleen，and Sutterella was negatively correlated with dampness. Bacteroides was negatively correlated with the spleen and kidney，and Bifidobacterium was negatively correlated with the spleen and dampness. ③ Bifidobacterium was positively correlated with glycine，threonine，lysine，and deoxycholic acid significantly，negatively correlated with cholic acid significantly，and positively correlated with taurochenodeoxycholic acid and pyruvic acid. Clostridium was positively correlated with glycine significantly and positively correlated with threonine and lysine. Lachnospira was negatively correlated with glycine，threonine，and pyruvic acid. Lysine was also negatively correlated with Faecalibacterium and Eubacterium ventriosum and positively correlated with Megamonas. There was a positive correlation between taurocholic acid and glycine bile acid and Campylobacter，between taurochenodeoxycholic acid and Veillonococcus，and between glucose and Rosepiella and Eubacterium ventriosum. There was a negative correlation between pyruvic acid and Escheria-Shigella and between taurochenodeoxycholic acid and Prevotella. Conclusionthere are differences in intestinal flora and serum metabolites between patients with pre-diabetic sputum syndrome and healthy people. The intestinal flora and metabolites have been disturbed in the stage of pre-diabetes，Bifidobacterium，Clostridium，Lachnospira，glycine，threonine，and lysine may be the breakthrough to explore the development of pre-diabetic sputum syndrome.

Objective:To explore the optimal time point for combining chemotherapy and immunotherapy and provide an experimen-tal basis for immunotherapy intervention in clinical. Methods:Twenty-three lung cancer patients who completed five chemotherapy cycles between November 2015 and December 2016 in the First Affiliated Hospital of Xinxiang Medical University were enrolled in this study. Numbers of T lymphocyte subsets, B lymphocytes, and NK lymphocytes in peripheral blood were counted. Expression levels of T lymphocyte co-suppression molecule and cytokines in the peripheral blood mononuclear cell were detected using flow cytometry to analyze the dynamic changes of such indicators from one cycle to five cycles of chemotherapy. Results:Significant decreases in the lev-els of CD8+T lymphocytes, CD19+B lymphocytes, and CD16+CD56+NK cells and an increase in CD4+T lymphocytes were observed in the course of multi-cycle chemotherapy for patients with lung cancer. Differences were statistically significant (P<0.05). The co-suppres-sion molecular expression of PD-1, CTLA-4, and CCR-4 with T lymphocytes was downregulated, and the differences were significant (P<0.05). Conclusion:Profiling the dynamic changes of lymphocyte subsets and the expression of T lymphocyte co-suppression molecule are significant in multiple chemotherapy cycles for patients with lung cancer. In the later stage, the combined application of PD-1, PD-L1, CTLA-4, or CCR-4 antibody may exert good therapeutic effects for patients with a high expression level of related immune check-points.