Child ; Extraoral Traction Appliances ; Humans ; Molar ; Orthodontic Wires ; Orthodontics, Interceptive ; instrumentation ; Prognosis ; Time Factors ; Tooth Crown ; surgery ; Tooth Eruption, Ectopic ; surgery ; therapy ; Tooth Movement Techniques ; instrumentation ; methods

Biomarkers ; analysis ; Case-Control Studies ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; blood ; Protein Array Analysis

Objective To evaluate the efficacy and safety of the improved percutaneous balloon mitral valvuloplasty (PBMV) in elderly patients with mitral stenosis. Methods Elderly patients with severe mitral stenosis received an improved PBMV which included a modified way of atrial septal puncture and technique across the mitral valve. The left atrial pressrue (LAP), mean pulmonary pressure (MPA), mean gradient across the mitral value (MPG) and mitral valve area (MVA) were recorded and compared before and after the operation. Long term follow up were made. Results After operation, the LAP decreased [(25.3±6.7) mm Hg vs.(16.4±5.8) mm Hg,1 mm Hg=0.133 Kpa], MPG decreased [(17.6±6.7) mm Hg vs.(6.8±2.9) mm Hg], MPA decreased [(38.6±12.1) mm Hg vs. (29.2±9.8) mm Hg], MVA increased [(1.05±0.22)cm2 vs.(1.61±0.38)cm2] and the New York heart association heart function classification improved. The follow-up result showed that the effect of PBMV was constant. Conclusions Improved PBMV may be an effective and safe measure for patients with mitral stenosis.

AIM To investigate the effect of aspirin on the proliferation and NOS expression in astrocytoma cell line, and probe into its mechanism. METHOD The effect of aspirin on the growth of astrocytoma cells was evaluated by MTT assay; NOS protein levels were determined by immunocytochemistry, NO and CEA concentration in the medium were determined by Griess assay and lepton catch immunising method respectively. RESULTS Aspirin inhibited the growth of astrocytoma cells, induced the expression of iNOS, increased the concentration of NO in the medium. The effects of these were centratoin dependent. Moreover, aspirin reduced the concentration of CEA in the medium. CONCLUSION Aspirin inhibits the growth of astrocytoma cell line. Up regulated iNOS expression resulting a increase of NO concentration are ascribed to mechanism of antiproliferation activity of aspirin. CEA is a good indicator in monitoring curative effect of astrocytoma.

Objective To investigate the diagnostic value of serum soluble transferrin receptor(sTfR) in children with iron deficiency anemia(IDA).Methods Sixty-three children with microcytic hypochromic anemia were divided into IDA and non-IDA(n-IDA)groups,on which sTfR and other iron metabolism related indexes such as serum ferritin(SF) and serum iron(SI) were measured,and(t-test) between groups and analysis of ROC curve were carried out.Results The mean concentration of sTfR in the group of IDA was above normal value and t-test difference was extremely significant compared with n-IDA group(P

Adult ; Antigens, CD20 ; metabolism ; Antiviral Agents ; therapeutic use ; Bone Marrow Transplantation ; adverse effects ; CD3 Complex ; metabolism ; Epstein-Barr Virus Infections ; drug therapy ; etiology ; Follow-Up Studies ; Foscarnet ; therapeutic use ; Humans ; Ki-67 Antigen ; metabolism ; Lymphoproliferative Disorders ; drug therapy ; etiology ; immunology ; virology ; Male

Adult ; Antibodies, Monoclonal, Murine-Derived ; therapeutic use ; Antigens, CD20 ; metabolism ; Antineoplastic Agents ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Cervical Intraepithelial Neoplasia ; drug therapy ; metabolism ; pathology ; surgery ; virology ; Cyclin-Dependent Kinase Inhibitor p16 ; metabolism ; Cyclophosphamide ; therapeutic use ; Doxorubicin ; therapeutic use ; Female ; Follow-Up Studies ; Humans ; Lymphoma, Follicular ; drug therapy ; metabolism ; pathology ; surgery ; virology ; Neoplasm Staging ; Neprilysin ; metabolism ; Papillomavirus Infections ; Prednisone ; therapeutic use ; Receptors, Complement 3d ; metabolism ; Rituximab ; Uterine Cervical Neoplasms ; drug therapy ; metabolism ; pathology ; surgery ; virology ; Vincristine ; therapeutic use

Hot-melt extrusion was applied to prepare mesoporous silica/ethylcellulose mini-matrix for sustained release, and fenofibrate was used as a model drug, ethylcellulose and xanthan gum were chosen as sustained-release agent and releasing moderator, respectively. This novel matrix obtained the controlled release ability by combining mesoporous silica drug delivery system and hot-melt extrusion technology. And mesoporous silica particle (SBA-15) was chosen as drug carrier to increase the dissolution rate of fenofibrate in this martix. Scanning electron microscope, transmission electron microscope, small angle X-ray powder diffraction and N2 adsorption-desorption were introduced to determine the particle morphology, particle size and pore structure of the synthesized SBA-15. The results showed that SBA-15 had a very high Brunauer-Emmett-Teller specific surface area, a narrow pore size distribution, large pore volume and a ordered two-dimensional hexagonal structure of p6mm symmetry. Differential scanning calorimetry and X-ray powder diffraction results demonstrated that fenofibrate dispersed in an amorphous state inside the pores of the mesoporous silica which contributed to the improvement in the dissolution rate. The drug release of mini-matrices was influenced by ethylcellulose viscosity grades and xanthan gum concentration, which increased with the increasing of xanthan gum concentration and decreasing of ethylcellulose viscosity. Mini-matrix containing 22% xanthan gum exhibited a good sustained release performance, and the drug release behavior followed the first-order kinetics.

A.niger M1, the initial strain, was treated by UV and a mutant with 30% higher xylanase activity was obtained. Zymogram for detecting xylanase showed there are three different xylanases in the mutant mature culture, while two xylanases in initial strain. After orthogonal experiment, the optimum fermentation conditions of the mutant were obtained as follows: concentration of the major carbon resource 4 %, ratio between bran and corncob 5:5, concentration of glucose 0.1%, concentration of ammonium oxalate as supplemental nitrogen resource 2.0%, the initial pH of liquid medium 5.0, 100mL/250mL flask.