Epidermal growth factor receptor(EGFR) family plays an important role in the development of gastric cancer. EGFR-targeted therapeutic agents include extracellular monoclonal antibodies and intracellular tyrosine kinase inhibitors. Many new agents such as trastuzumab, cetuximab, panitumumab and lapatinib, have been tested in randomized phase Ⅲ clinical trials. Results from ToGA trial may shed some light on the treatment of advanced gastric cancer.

Objective To study of vascular false as the clinical effect and safety of acromastitis were treated by com -pound anisodine treatment , to provide reference for the treatment of vascular pseudo optic .Methods From June 2013 to June 2015, 132 cases of patients with vascular pseudo optic papilla in our hospital were selected as the observation objects , and were divided into observation group and control group each 66 cases according to the treatment method .The control group was treated with routine drug therapy , and the observation group in the control group on the basis of daily injections of Com -pound Anisodine Hydrobromide Injection .Two groups before and after the treatment of vision changes , and the treatment of safety and efficacy were compared .Results The curative effect:The two groups of patients after treatment were improved , but the observation group was significantly higher than the control group after treatment ;The cure rate and total effective rate of the observation group were 39.51%and 88.89%respectively, which was significantly higher than the control group of 24. 36%and 73.08%, and had better curative effect in observation group .Security aspect:The total incidence of adverse reac-tions in the observation group and the treatment group was 10.61%, significantly less than 24.24% of the control group, higher safety .Conclusion In the treatment of vascular pseudoaneurysms as papillitis drugs , the curative effect of compound anisodine is much better with better security , which can significantly improve the visual acuity of the patients .

Tumor progression is often associated with immune suppression or the ability of the tumors to avoid immune surveillance.Immunotherapy improves the ability of the immune system to recognize and clear tumor cells with a little influence on the normal tissues.Immunotherapy is a hot spot in the research of advanced esophageal cancer.Innnunotherapy of esophageal cancer includes immune checkpoint inhibitors,adoptive cellular immunotherapy,tumor vaccines and antibody therapy.At present,a large number of clinical trials are underway to evaluate the role of immunotherapy in esophageal cancer.Checkpoint inhibitors represented by Pembrolizumab and Nivolumab,has achieved initial success in the treatment of advanced esophageal cancer to improve the prognosis and life quality of esophageal cancer patients.In the future,further studies are needed to have a research on the effects of tumor heterogeneity,prediction of therapeutic targets,and immune tolerance.

Objective:To study the effect of exogenous hyaluronidase on proliferation of human breast cancer cells in vitro.Methods:The proliferation of human breast cancer cell line ZR-75-30 were detected by MTT-assay and flow cytometry.Results:The absorbency value(A) of ZR-75-30 in study group treated with Hyase (0.674?0.221) was significantly higher than that in control group(0.563?0.046).The percentage of phase S cells in study group(18.36?0.65) was higher than that in control group(2.19?0.10);the percentage of phase G0/G1 cells in study group(44.49?4.33) was lower than that in control group(62.14?26.97).The absorbency value(A) of MDA-MB-435 in study group (0.674?0.221) was significantly higher than that in control group(0.563?0.046).The absorbency valve(A) of MDA-MB-231 in study group (0.674?0.221) was significantly higher than that in control group(0.563?0.046).Conclusion:Exogenous hyaluronidase may promote the proliferation of breast cancer cell lines in vitro.

Latrodectus tredecimguttatus (commonly known as black widow spiders) have toxins not only in their venom glands, but also in other parts of their body, in their eggs and even in the newborn spiderlings. The study on the toxins in venom and materials outside the venom glands of the spiders to elucidate their differences and similarities, evolutional relationship and biological functions is of important theoretical and applicable significance. The development of modern protein chemistry and proteomics techniques has provided efficient means for the study of protein and peptide toxins of L. tredecimguttatus. By using such techniques, the molecular base and action mechanism of the toxins can be revealed at the levels of both single purified proteins and omics. Up to now, although protein chemistry and proteomics study on L. tredecimguttatus toxins have achieved a certain progress, the relevant work particularly that on the toxins in the materials outside the venom glands has to be further deepened.
Animals ; Arthropod Proteins ; chemistry ; Black Widow Spider ; chemistry ; Proteomics ; Venoms ; chemistry

Objective To investigate the roles of Thl7 cells in the immunological pathogenesis of vitiligo. Methods Forty patients with progressive or stable vitiligo and 20 normal human controls were included in this study. Enzyme-linked immunosorbent assay (ELISA) was performed to measure the level of serum IL-17, and SYBR Green I real-time RT-PCR to detect the mRNA expression of RORγt in peripheral blood mononuclear cells (PBMCs) from these patients. The correlation of the above parameters with disease activity was assessed. Results The levels of serum IL-17 and ROR-yt mRNA in PBMCs were significantly higher in patients with progressive and stable vitiligo than in normal human controls (all P< 0.01). Conclusion Thl7 cells may be closely associated with the pathogenesis of vitiligo.

OBJECTIVE： To observe the stability of mezlocillin sodium in 5％ glucose injection， glucose and sodium chloride injection and maintain solution for infants injection with different pH， over different periods and at 4℃ ， 25℃ ， 37℃ .METHODS： 9 solutions with different pH were made up by mezlocillin sodium and above-mentioned infusion fluids， according to 4 factors and 3 levels to make L9（34） orthogonal test.Then determination of mezlocillin sodium in each solution was carried out with ultraviolet spectrophotometry.RESULTS： The contents of mezlocillin sodium in above-mentioned solutions with different pH and at different temperature have not changed obviously over 0h-8h.CONCLUSION： Mezlocillin sodium is compatible with above-mentioned solutions.

Hemopoietic stem cells are mostly obtained from bone marrow,umbilical cord blood and peripheral blood.Physical status of final-stage liver disease patients is poor,and these patients hardly endures large wound.Thus,it is a potential method to harvest hepatocytes following transdifferentiation using peripheral blood stem cell transplantation.It is necessary to mobilize peripheral blood when enough stem cells are needed during peripheral blood stem call transplantation.Stem cell mobilization agent contains 3 types at present:chemotherapeutic drugs,polyanion preparation such as dextran sulphate,various recombinant human hematopoietic cell stimulating factors.For patients with severe liver disease,it is safe to use various recombinant human hematopoietic cell stimulating factors.Density gradient centrifugation is widely used to isolate hematopoietic stem cells.This method can obtain leukocytic cream that is rich of mononuclear cells,and primarily enrich CD34~+ cells.With the discovery of CD34~+ different antigenic determinant monoclonal antibody,immunological technique of exactly,abundantly,rapidly,positively sorting CD34~+ cells is developed quickly,such as solid phase sorting method and flow cytometry sorting.Utilizing the high reproductive activity and multi-directional differentiation,hematopoietic stem cells are amplified in vitro and induced to differentiate into abundantly hemopoietic progenitor cells in a short period,and into directional amplification of various cells such as hepatocytas for transplantation.Presently,bone marrow hematopeietic stem cells can successfully differentiate into hepatocytas.To judge whether differentiated cells were from infused stem cells in transplanted organs,the infused cells were commonly labeled before transplantation.Labeling method includes fluorescent labeling,specific staining,genetic mark and chromosome identification.Subsequently,this was identified using immunological,molecular biological,and fluorescence chemical techniques.Presently,hematopoietic stem cell transplantation in treatment of liver disease is mostly basic experiment,but has not been applied in clinic.

Objective To investigate the interaction of in vitro antibacterial activity between cefoperazone-sulbactam and imipenem against carbapenem-resistant Acinetobacterbaumannii.Methods The minimum inhibitory concentrations (MIC) of imipenem and cefoperazone-sulbactam against Acinetobacter baumannii were detected and the fractional inhibitory concentration (FIC) index of imipenem/cefoperazone-sulbactam combination was calculated by broth micro-dilution method.The interactions of imipenem and cefoperazone-sulbactam were assayed by K-B agar plate method.Results The MIC50 of cefoperazone-sulbactam and imipenem were both 16 mg/L,and MIC90 of the two drugs were both 64 mg/L.Among the 26 strains of Acinetobacter baumannii,16 strains had FIC indexes ≤0.5,and 10 had FIC indexes≥2.0.K-B agar plate assay showed that the cefoperazone-sulbactam/imipenem combination was synergistic for strains with FIC indexes≤0.5,and antagonistic for strains with FIC indexes ≥ 2.0.Conclusions Imipenem in combination with cefoperazone-sulbactam can be either antagonistic or synergistic against carbapenem-resistant Acinetobacter baumannii.The clinical use of cefoperazone-sulbactam/imipenem combination for the treatment of carbapenem resistance Acinetobacter baumannii infections should be cautious in case of antagonism.

Objective:This study aims to investigate the expression pattern of miR-512-3p in breast cancer and noncancerous paired specimens as well as the effects of miR-512-3p on the proliferation, apoptosis, cell cycle, and cloning of MD-MBA-231 breast cancer cells. The study also aims to identify the miR-512-3p target gene. Methods:Reverse transcription-polymerase chain reaction (RT-PCR) was conducted to quantify the miR-512-3p expression in breast cancer and noncancerous paired specimens. Methylthiazol tetrazolium (MTT) assay, flow cytometry, and clone formation assay were used to characterize the function of miR-512-3p in breast cancer. Target prediction was performed using the TargetScan, PicTar, and miRanda software. The results were validated using RT-PCR and western blot target validation. Results:The relative expression of miR-512-3p in breast cancer specimens was significantly lower than those in normal breast specimens (P<0.05). MTT assay revealed that 48 h after transfection, miR-512-3p significantly repressed the proliferation of MD-MBA-231 cells at a suppression rate of 45.38%and at a concentration of 100 nmol/L. MiR-512-3p increased the percentage of early apoptotic cells in the treatment groups (9.32 ± 0.41)%compared with those in the blank controls (3.1 ± 0.54)%and in the negative controls (2.9 ± 0.39)%(P<0.05). Significant differences were found in the percentages of the G0/G1-and G2/M-phase cells after miR-512-3p transfection compared with those in the controls (P<0.05). In the cloning assay, clone formation was inhibited in the miR-512-3p-transfected groups compared with those in the control groups. RT-PCR and western blot results indicate that miR-512-3p significantly inhibited the c-FLIP mRNA and protein expression. Conclusion:MiR-512-3p expression is relatively decreased in breast cancer specimens compared with those in the normal samples. The negative effect of miR-512-3p on cell proliferation and clone formation and its positive effect on early apoptosis through c-FLIP targeting suggest that miR-512-3p acts as a tumor suppressor gene in breast cancer. Therefore, miR-512-3p may be a new target for the diagnosis and treatment of breast cancer in the future.