Adult ; Broad Ligament ; Diagnosis, Differential ; Female ; Genital Neoplasms, Female ; diagnosis ; Humans ; Leiomyoma ; diagnosis ; Neoplasms, Multiple Primary ; diagnosis ; Ovarian Neoplasms ; diagnosis ; Teratoma ; diagnosis ; Uterine Neoplasms ; diagnosis

Aged ; Carcinoma, Squamous Cell ; pathology ; surgery ; Cholecystectomy ; Gallbladder Neoplasms ; pathology ; surgery ; Humans ; Male

Aged ; Case-Control Studies ; Cerebral Infarction ; blood ; genetics ; Female ; Fibrinogen ; genetics ; metabolism ; Haplotypes ; Humans ; Male ; Middle Aged ; Polymorphism, Genetic

Objective To explore the effect of problem-based learning method in traditional Chinese internal medicine teaching. Methods 58 students enrolled in the major of integrated traditional Chinese and western medicine in class C at the Beijing University of Chinese medicine were arranged to receive PBL(test group)or traditional teaching methods(control group)in 2 courses and complete 116 questionnaires. The teaching outcomes were evaluated by questionnaire and individual interviews. Results Compared with controls,students receiving PBL performed significantly better in terms of active classroom atmosphere, broadening their knowledge, and improving teamwork ability(χ2 were 7.16, 4.07, 4.09, P<0.05). Conclusion The PBL strategy has the advantage than the traditional teaching methods in traditional Chinese internal medicine teaching.

Objective To make a reasonable evidence-based nursing scheme for the oxygen non-humidified of continuing nasal cannula oxygen therapy. Method Adopting the JBI clinical evidence application system, make sure the evidence baseline investigated before application, used during clinical application, and reviewed after application. Based on the now available best evidence, making examination standard and apply it to clinical care. During the application of evidence, 81 continuing low-flow (oxygen flow≤4L/min) nasal cannula oxygen patients were taken. Making assessment on the experiment group(oxygen non-humidified) and control group (oxygen humidified) in three aspects: the comfort level and effect of oxygen therapy, and humidification bottles contamination. Results During the application of evidence, the difference between experiment group and control group shows no statistical significance (P>0.05);the experiment group in oxygen therapy operating time was (162.93±40.18) s, the control group operating time was (258.60 ± 56.97) s, the difference of two groups in shows statistical significance (t=8.752, P<0.01). Conclusion The continuing low-flow (oxygen flow≤4L/min) nasal cannula oxygen therapy do not need humidification. And the clinical application of this best evidence standardizes the clinical nurses oxygen nursing behavior, reduces the nursing cost and enhances the quality of clinical nursing.

Aim To study inhibitory effect of 5-fluorouracil encapsulated by galactosylceramide liposomes (5-Fu-GCL)on 5-Fu-resistent HepG_2 cells and its mechanisms. Methods Inhibitory effect of 5-Fu-GCL on established model of 5-Fu-resistant HepG_2 cells was assessed with MTT assay in vitro. The concentration-time course of 5-Fu-GCL in intracellular fluid was detected with high performance liquid chromatography (HPLC). Thymidylic acid synthase (TS) expression was observed with immunohistochemical method,and NO content was determined with chemical method. Results Obvious inhibitory effects of 5-Fu-GCL (75,150,300,600,1200?mol?L-1) on 5-Fu-resistant HepG_2 cells were observed with IC_ 50 of 158.6 ?mol?L-1,far lower than that of free 5-Fu (400.9 ?mol?L-1). 5-Fu-GCL (300 ?mol?L-1) inhibited 5-Fu-resistant HepG_2 cells in a time-dependent manner,and the inhibitory effect of 5-Fu-GCL was stronger than that of free 5-Fu during 12～48 h. Compared with free 5-Fu,5-Fu-GCL (300 ?mol?L-1) increased the content of intracellular fluid in 5-Fu-resistant HepG_2 cells. 5-Fu-GCL(62.5,300,1200 ?mol?L-1) not only inhibited the expression of TS,but also increased the production of NO in 5-Fu-resistant HepG_2 cells,and these effects of 5-Fu-GCL(300,1200 ?mol?L-1) were stronger than those of free 5-Fu. Conclusion 5-Fu-GCL has inhibitory effect on 5-Fu-resistant HepG_2 cells. The effect may be related to the increased concentration of 5-Fu-GCL in intracellular fluid,inhibited expression of TS and increased production of NO.

Objective To construct the eukaryotic expression vector for the fusion gene comprising the genes encoding mouse anti-human cross-linked fibrin single-chain fragment variable (scFv) antibody and low-molecular weight single-chain urokinase. Methods The single peptide of recombinant human ipro-urokinase was ligated with the target fusion gene, and the same reading frame was guaranteed. The ligated compound was subsequently incorporated respectively into pcDNA3 and pMJK expression vectors by DNA recombination technique. Results and Conclusion The desired recombinant plasmids pcDNA3 and pMJK3 containing the signal peptide of recombinant human ipro-urokinase gene and the fusion gene were constructed,which lays the foundation for establishing of a cell line that may secrete the fusion protein.

Objective To construct the eukaryotic expression vector for the fusion gene comprising the genes encoding mouse anti-human cross-linked fibrin single-chain fragment variable (scFv) antibody and low-molecular weight single-chain urokinase. Methods The single peptide of recombinant human ipro-urokinase was ligated with the target fusion gene, and the same reading frame was guaranteed. The ligated compound was subsequently incorporated respectively into pcDNA3 and pMJK expression vectors by DNA recombination technique. Results and Conclusion The desired recombinant plasmids pcDNA3 and pMJK3 containing the signal peptide of recombinant human ipro-urokinase gene and the fusion gene were constructed,which lays the foundation for establishing of a cell line that may secrete the fusion protein.

Objective　To study the effects of Fuyuansan(Chinese herbal medicine) on microcirculation of steroid-induced necrosis of femoral head.Methods　40 male adult New Zealand rabbits were randomly divided into three groups:model group(n=15),Fuyuansan group(n=15) and control group(n=10).Hydroprednisone acetate was injected into the rabbits of the model group using intragluteal injection to produce necrosis models of bone cells of femoral head.The rabbits of Fuyuansan group were injected the same agent using the same methods as model group.Meanwhile,the animals of Fuyuansan group were given Fuyuansan daily.The whole-blood viscosity,triglyceride,serum total cholesterol and intraosseous pressure of each group were determined every two weeks.Results　The whole-blood viscosity,triglyceride,serum total cholesterol and intraosseous pressure of model group remarkably increased,but those of Fuyuansan group increased lightly(P<0.01).Conclusion　Fuyuansan can improve microcirculation of femoral head,change ischemia conditions and prevent the development of necrosis of femoral head.

Pancreatic cancer is a kind of highly malignant tumor with a low survival rate and poor prognosis. The effectiveness of gemcitabine as a first-line chemotherapy drug is limited; however, it can activate dendritic cells and improve antigen presentation which increase the sensitivity of tumor cell to immunotherapy. Although immunotherapy has made some advancements in cancer treatment, the therapeutic benefit of programmed cell death receptor 1/programmed death receptor-ligand 1 (PD-1/PD-L1) blockade therapy remains relatively low. The chemokine C-X-C chemokine ligand 12 (CXCL12) contributes to an immunosuppressive tumor microenvironment by recruiting immunosuppressive cells. The receptor C-X-C motif chemokine receptor 4 (CXCR4), highly expressed in various tumors including pancreatic cancer, plays a crucial role in tumor development and progression. In this study, the anti-tumor immune response of human peripheral blood mononuclear cell (hPBMC) was enhanced using the combination of BsNb PX4 (anti-PD-L1&CXCR4 bispecific nanobody) and gemcitabine. In a co-culture system of gemcitabine-pretreated hPBMCs with tumor cells, the BsNb PX4 synergized gemcitabine to improve the cytotoxic activity of hPBMCs against tumor cells. Flow cytometry analysis confirmed increased ratio of CD8⁺ to CD4⁺ T cells in combination treatment. In NOD/SCID mice bearing pancreatic cancer, the combination treatment exhibited more infiltration of CD8⁺ T cells into tumor tissues, contributing to an effective anti-tumor response. This study presents potential new therapies for the treatment of pancreatic cancer. Ethical approval was obtained for collection of hPBMC samples from the Local Ethics Committee of Shanghai Jiao Tong University. All animal experiments were approved by the Animal Ethic Committee of Shanghai Jiao Tong University (authorizing number: A2024246).