ObjectiveTo compare the efficacy and safety of intermittent patient-initiated single-dose antibiotic prophylaxis and continuous antibiotic prophylaxis for the prevention of recurrent urinary tract infection (UTI) in postmenopausal women. MethodsA randomized controlled clinical trial was conducted for the prevention of recurrent urinary tract infection. Single dose of antibiotic was given every night in continuous antibiotic prophylaxis group and every time after exposure to conditions predisposed to UTI in intermittent antibiotic prophylaxis group. The duration of prevention was 12 months in both groups. ResultsThe effective rates of intermittent antibiotic prophylaxis and continuous antibiotic prophylaxis were 71.0% and 81.8% respectively (P＞0.05). The incidence of gastrointestinal adverse reaction in intermittent antibiotic prophylaxis group was significantly lower than that in continuous antibiotic prophylaxis group (7.7% vs 28.6%,P＜0.05). ConclusionsCompared with continuous antibiotic prophylaxis, intermittent patient-initiated single-dose antibiotic prophylaxis is a better prophylaxis with less gastrointestinal adverse reactions for the prevention of recurrent urinary tract infection in postmenopausal women.

Objective ， To investigate the role of serum chemokines and oxidative and antioxidant biomarkers in occupational （ silicosis） Methods silicosis hereinafter referred to as . A total of 58 patients with stage Ⅰ silicosis were selected as the - （ ）， research subjects using convenient sampling method. The serum levels of nuclear factor erythroid 2 related factor 2 Nrf2 -（ - ） - （ - - ） - heme oxygenase 1 HO 1 and 8 isoprstaglandin F2α 8 iso PGF2α were determined by enzyme linked immunesorbent assay. （ ） （ - ） The serum levels of lipid peroxide LPO and total antioxidant capacity TAOC were determined by chemistry colorimetric method. - - （ - ）， Luminex flow fluorescence technology was used to detect the serum levels of interferon γ inducible protein10 IP10 macrophage （ ）- ， - - （ ） inflammatory protein MIP 1α MIP1β and macrophagederived chemokine MDC . The above indicators were analyzed by factor Results - analysis. The information extraction rate of the original indicators of the nine biomarkers was 58.5%96.5%. Four common ， ， （ ） ， factors were extracted including Nrf2 antioxidant signaling pathway helper T cell Th 1 dominant chemotaxis the total ， ， ， ， ， oxidation/antioxidant balance and Th2 dominant chemotaxis whose variance contribution rates were 32.2% 19.1% 16.4% ， ， Conclusion - and 11.8% respectively and the cumulative variance contribution rate was 79.5%. Both the oxidant antioxidant ， disturbance and the dominance chemotaxis are involved in the occurrence and development of silicosis and the Nrf2 antioxidant signaling pathway plays the most critical role.

Objective To establish a numerical model of the shear module of alginate beads stimulated by ultrasonic sound.Methods The compression ratio and force of alginate beads were recorded with the compression test .The shear module of beads was measured with a Hertz model .When to alginate beads were stimulated ultrasonically for different durations , the ultrasonic stimulation power , ultrasonic pulse ratio , and changes in the shear module and solution temperature were measured.Results Temperatures in the solution and shear module of alginate beads increased under different ultrasonic stimulation conditions .Modeling analysis revealed the relationship between the shear module of alginate beads and the corresponding temperature .The shear module of beads was in a quadratic equation with temperature (20℃

OBJECTIVETo investigate the treatment of upper lip atrophy resulted by previous therapy.

METHODSFrom Mar. 2008 to Mar. 2012, 4 cases with upper lip atrophy resulted by radiotherapy and sclerosing agent injection were treated with lower orbicularis oris muscle flap wrapped by acellular dermis. The thickness and height of upper lip were increased to improve the lip atrophy.

RESULTSPrimary wound healing was achieved in all the 4 cases. All the patients were followed up for 3 years with obvious improvement and inconspicuous scar.

CONCLUSIONThe volume of lower lip in children is not sufficient as donor site. The lower orbicularis oris muscle flap wrapped by acellular dermis can effectively improve the lip thickness and vermilion portion of upper lip.

Acellular Dermis ; Atrophy ; surgery ; Child ; Female ; Humans ; Lip Diseases ; surgery ; Male ; Mouth Mucosa ; transplantation ; Reconstructive Surgical Procedures ; methods ; Skin Transplantation ; methods ; Surgical Flaps

cDNA for Insulin-like growth factor binding protein 3 was cloned and constructed a prokaryotic expression vector--pET-DsBA-IGFBP3. The construct was transformed into E. coli BL21 (DE3)plysS. The induced fusion protein (D-IGFBP3) was expressed successfully in soluble form. We obtained D-IGFBP3 the purify of which is over 95% after purification by His affinity chromatography. The product was identified by Western-blot. The cell assay showed that the obtained fusion protein can inhibit the growth of MCF-7 and bind with IGF-I in vitro.
Blotting, Western ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Chromatography, Affinity ; Dose-Response Relationship, Drug ; Electrophoresis, Polyacrylamide Gel ; Enzyme-Linked Immunosorbent Assay ; Escherichia coli ; genetics ; Gene Expression ; Humans ; Insulin-Like Growth Factor Binding Protein 3 ; genetics ; metabolism ; pharmacology ; Insulin-Like Growth Factor I ; metabolism ; Protein Binding ; Recombinant Proteins ; isolation & purification ; metabolism ; pharmacology ; Solubility

Aviation ; Humans ; Physical Fitness ; Resistance Training ; Schools ; Students

OBJECTIVETo investigate the clinical value of pleural effusion lung ProGRP, neuron specific enolase (NSE), cytokeratin fragment 19 (CYFRA21-1), carcino-embryonic antigen (CEA), carbohydrate antigen 153 (CA153), carbohydrate antigen 19 - 9 (CA19-9) in differential diagnosis and histological typing of malignant pleural effusion caused by lung cancer.

METHODSAll the 171 patients with malignant hydrothorax caused by lung cancer were from coal-mine area of Kailuan. They were divided into the small cell lung cancer (SCLC) group (n = 39), the adenocarcinoma group (n = 99) and the squamous cell carcinoma group (n = 37). The patients with benign pleural effusion served as the controls (n = 30). The diagnostic value of pleural effusion ProGRP, NSE, CYFRA21-1, CEA, CA153 and CA19-9 was compared for each group.

RESULTSYouden index and the accurate rate of pleural effusion ProGRP + NSE (sequence test) were the highest in the diagnosis of malignant hydrothorax caused by SCLC. CEA + CA153 + CA19-9 (sequence test) was the highest in the diagnosis of malignant hydrothorax caused by adenocarcinoma. CYFRA21-1 + CEA + CA153 (on parallel test) were the highest in the diagnosis of malignant hydrothorax caused by squamous cell carcinoma. The Yonden index and the accurate rate were the highest by the single detection of CYFRA21 (0.5514 and 0.6878), and by the combined detection of ProGRP + CYFRA21-1 + CEA (on parallel test) (0.7029 and 0.8878).

CONCLUSIONThe first pleural effusion tumor markers of malignant hydrothorax caused by the SCLC, adenocarcinoma of lung, and lung squamous cell carcinoma are ProGRP, CEA and CYFRA21-1, respectively. The best combinations of pleural effusion tumor marker in diagnosis of malignant hydrothorax caused by the SCLC, adenocarcinoma of lung, lung squamous cell carcinoma and lung cancer are the combined detection of ProGRP + NSE (sequence test), combined detection of CEA + CA153 + CA19-9 (sequence test), the combined detection of CYFRA21-1 + CEA + CA153 (on parallel test) and ProGRP + CYFRA21-1 + CEA (on parallel test), respectively.

Adult ; Aged ; Aged, 80 and over ; Antigens, Neoplasm ; analysis ; Biomarkers, Tumor ; analysis ; CA-19-9 Antigen ; analysis ; Diagnosis, Differential ; Female ; Humans ; Keratin-19 ; analysis ; Lung Neoplasms ; complications ; diagnosis ; Male ; Middle Aged ; Peptide Fragments ; analysis ; Pleural Effusion, Malignant ; diagnosis ; etiology ; Recombinant Proteins ; analysis

Objective To compare the regulation effects of different activated and inhibitory riboswitches , and to facilitate the precise regulation of gene circuits .Methods A green fluorescent protein amcyan expression vector regulated by different riboswitches (addA, M6, TPP and btuB) was constructed, and the expression level of amcyan under different ligand concentrations was analyzed by RT-qPCR and relative fluorescence intensity , and then compared with the expression level of a vector without any riboswitch .The dynamic control performance was analyzed .Results Under the control of addA and M6 activated riboswitches , the expression of green fluorescent protein increased with ligand concentrations , and addA riboswitch had more dynamic regulatory effect than M 6 riboswitch.However, under the control of TPP and btuB inhibitory riboswitches , the expression of green fluorescence decreased with the increase in ligand concentrations , and the dynamic regulation of btuB riboswitch was slightly greater than that of TPP riboswitch .Conclusion The regulation efficacy of different riboswitches which have the same mechanism varies .Activated riboswitch addA and inhibitory riboswitch btuB with dynamic regulation and control advantages are more suitable for precise metabolism regulation and target gene expression in Escherichia coli.

OBJECTIVETo investigate the efficacy of cryoablation combined with CpG ODN in the treatment of murine transplanted colon carcinoma.

METHODSColon carcinoma model was established by subcutaneously inoculating CT26 cells into the right flank in BALB/c mice. The tumor-bearing mice were randomly divided into 4 groups:the group of PBS injected in peritumoral area, the group of cryoablation, the group of cryoablation combined with CpG ODN, the group of CpG ODN injected in peritumoral area. The tumor size changes were measured. Serum levels of interleukin (IL)-12 and interferon-gamma(IFN-gamma) were assayed by ELISA. The rates of CD3(+)CD4(+)T, CD3(+)CD8(+)T lymphocytes in serum were counted with flow cytometry. Mice in the cryoablation group and the combined group with tumor regression were re-challenged with CT26 cells.

RESULTSThe survival time of cryoablation group and combined therapy group were (80.3 + or - 5.4) days and (83.8 + or - 5.5) days, respectively, longer than (53.7 + or - 3.7) days in PBS group and (51.5 + or - 6.8) days in CpG ODN group(all P<0.05). The suppress rates of tumor cells in cryoablation group and combined therapy group were 83.8% and 86.2% respectively. After 20 days following treatment, CD3(+)CD4(+)T/CD3(+)CD8(+)T ratio and the concentrations of IL-12 and IFN-gamma in mice serum of cryoablation group and combined therapy group were higher than those in PBS group and CpG ODN group(all P<0.05). No significant difference was found in CD3(+)CD4(+)T/CD3(+)CD8(+)T ratio between cryoablation group and combined therapy group(P>0.05). However, the concentrations of IL-12 and IFN-gamma in combined therapy group were higher than those of cryoablation group(all P<0.05). After re-challenging, tumor formation rate in the cryoablation combined with CpG ODN group was 16.7%, significantly lower than that in the cryoablation group(83.8%)(P<0.05).

CONCLUSIONCryoablation combined with CpG ODN can increase antitumor immune response in mice, and therefore can decrease the tumor formation when re-challenged with CT26 cells.

Animals ; Colonic Neoplasms ; therapy ; Cryosurgery ; Female ; Mice ; Mice, Inbred BALB C ; Neoplasm Transplantation ; Oligodeoxyribonucleotides ; therapeutic use

OBJECTIVETo evaluate the performance of 18F-FDG three-head tomography with coincidence imaging and serum tumor marker assays in identifying lung lesions in 104 patients with abnormal findings on chest X-ray or computer tomography.

METHODSA prospective evaluation of 18F-FDG coincidence imaging and the measurement of 3 serum markers for lung cancer ( carcinoembryonic antigen, CYFRA21-1 and neuron specific enolase) were performed within one week in 104 inpatients with suspected lung malignancy. All images were analyzed visually. It was considered positive for malignancy if the 18F-FDG uptake was increased relative to that in the adjacent lung tissue, and was focal. The serum tumor marker test was considered positive for malignancy if the serum level of at least one marker was elevated.

RESULTS66 patients were proven to have lung cancer by pathology, and 38 patients had benign lung diseases. The sensitivity, specificity, accuracy of 18F-FDG coincidence imaging and serum tumor markers in assessing lung cancers were 80. 0% , 77. 2% , 77. 9% and 56. 0% , 60. 9%, 64. 4% , respectively. 18F-FDG coincidence images in assessing lung lesions showed significantly higher sensitivity, specificity and accuracy than serum tumor markers. Four patients with lung cancer had negative findings on 18F-FDG coincidence images but showed positive serum markers.

CONCLUSION18F-FDG coincidence imaging is a powerful tool for evaluating patients with lung lesions suggestive of malignancy. Although the determination of serum marker levels is less accurate than 18F-FDG coincidence imaging, the combination of a positive 18F-FDG coincidence result and positive tumor markers may be helpful in improving the diagnosis of lung cancers.

Adult ; Aged ; Aged, 80 and over ; Antigens, Neoplasm ; blood ; Biomarkers, Tumor ; blood ; Carcinoembryonic Antigen ; blood ; Carcinoma, Small Cell ; blood ; diagnosis ; diagnostic imaging ; Carcinoma, Squamous Cell ; blood ; diagnosis ; diagnostic imaging ; Female ; Fluorodeoxyglucose F18 ; Humans ; Keratin-19 ; Keratins ; blood ; Lung Neoplasms ; blood ; diagnosis ; diagnostic imaging ; Male ; Middle Aged ; Phosphopyruvate Hydratase ; blood ; Plasma Cell Granuloma, Pulmonary ; blood ; diagnosis ; diagnostic imaging ; Positron-Emission Tomography ; Prospective Studies ; Radiopharmaceuticals ; Sensitivity and Specificity ; Tuberculosis, Pulmonary ; blood ; diagnosis ; diagnostic imaging