Objective To observe the expression of matrix metalloproteinase(MMP-2, MMP-9 and vascular endothelial growth factor (VEGF) in retinoblastoma (RB) and its relationship with the differentiation and optic nerve infiltration of RB. Methods Forty paraffin specimens of pathological confirmed RB were studied. They were divided into differentiated group (15 cases) and undifferentiated group (25 cases) , optic nerve infiltration group( 13 cases) and without optic nerve infiltration group(27cases). The expression of MMP-2, MMP-9 and VEGF were detected by immunohistochemistry, their relationships with the differentiation and optic nerve infiltration were also analyzed. Results The positive rate of MMP-2, MMP-9 and VEGF expression in 40 RB cases were 52.5%, 57.5% and 72.5%respectively. The expression of MMP-2, MMP-9 and VEGF in the undifferentiated group were significantly higher than those in the differentiated group (χ2= 9. 037, 9. 253, 8. 095;P＜0. 05). The expression ofMMP-2, MMP-9 and VEGF in RB with optic nerve infiltration group were significantly higher than those in RB without optic nerve infiltration group (χ2=11.045,10. 243, 8. 956;P＜0. 05). The expression of MMP-2,MMP-9 had a positive correlation with the expression of VEGF in RB (r= 0. 126, 0. 314;P ＜ 0. 05).Conclusions MMP-2, MMP-9 and VEGF expressed in RB tumor tissues. The expression of MMP-2,MMP-9 has a positive correlation with the expression of VEGF. The levels of MMP-2, MMP-9 and VEGF expression are related to optic nerve infiltration of RB cells.

Objctive To investigate the zymogenic state and drug resistance of multi-drug resistant Pseudomonas aeruginosa (MDRP) for providing a laboratory basis of combined use of drugs against MDRP in clinical practice. Methods All isolates were isolated by routine procedures and identified by VITEK-2 automatic bacterial identification instrument. Following the CLSI instruction, doubling dilution in agar plates was performed for MIC detection. Results MDRP were 22.77% ( 86.96% for sputum) from 101 strains Pseudomonas aeruginosa, which were isolated from clinical specimens. Positive rates of MDRP producing metallo-?-lactmases were 91.3%, positive rates for producing induced Ampc and plasmid Ampc ?-lactamase were 52.17% and 21.74%, respectively. The ratio between Meropenem and Imipenem higher then 1 was 34.78%. The bacterial inhibitory rates of Polymyxin B and Imipenem were zero, that of Amikaein and Ceftaxidime were 4.35%, that of Ciprofloxacin and Cefoperazone/sulbactam were 43.48%, that of Pazufioxacin and Piperacillin/Tazobactam were 21.74% and 26.07%, and that of Meropenem was 47.83%. The combined use of Cefoperazone/sulbactam, Cefpirome, Piperacillin/Tazobactam with Amikacin resulted in bacteriostatic rate of 65.2%, 47.8%, 43.5%, respectively. Conclusoins MDRP is main micro-organism found in respiratory tract specimens. Drug resistance of MDRP is related to multiple drug-resistant mechanisms. Clinicians should first select enzyme inhibitory-drug (Cefoperazone/sulbactam or Piperacillin/Tazohaetam) with Amikacin or Polymyxin B to treat clinical MORP infection, and re-adjust the type of antibiotics rationally according to patients' symptoms, phenotype of the drug-resistant pathogen, the results of drug susceptibility test, and the effect on the patients.

0. 05), and were closely correlated to the clinical stage and the curative effect(P 0. 05). Conclusions: VEGF expression was contributes to the tumor neovascularization and tumor metastasis. Local control rate of VEGF positive tumor patients can be increased but their survival can not be prolonged by mono-chemotherapyonly only.

Background and purpose:The skeleton is one of the most common sites of metastasis in patients with lung cancer.Bone metastases often cause poor prognosis.It is important to early detect bone metastases.Therefore,we planned a retrospective study to investigate the role of radionuclide bone scanning with 99mTc-MDP in detecting bone metastases in lung cancer patients.Methods:It was a retrospective analysis.400 patients with lung cancer diagnosed in our hospital from 2005.5 to 2007.5 were recruited.Using 99mTc-MDP bone scanning,we analyzed the symptoms,sites,numbers,pathological types and TNM stages of bone metastases.Results:Ostealgia was the most frequent symptom in lung cancer patients with bone metastases.The sites of bone metastases were:thoracic bones(41.52%),vertebras(32.31%),pelvic bones(15.89%),extremities(8.68%),skull(1.60%).126 patients had multiple bone metastases(80.25%).There was a statistical significance of bone metastases in adenocarcinoma patients(48.09%)compared with in squamous cell carcinoma patients(33.33%)(P

Objective To investigate the clinicopathologic features and differential diagnosis ofacroangiodermatitis (AM).Methods Clinical and pathological data on 12 patients with AM were retrospectively reviewed.Results Clinical manifestations of AM consisted of circumscribed brown to violaeeous macules,plaques,nodules and ulceration.Lesions were located in bilateral legs in 6 patients,and in unilateral legs in the other 6 patients.Histopathological examination revealed an increased number of lobular or clump-shaped capillaries and small veins whose lumens were round and regular,swelling of vascular endothelial cells,and different degrees of erythrocyte extravasation,hemosiderin deposition,dermal fibrosis and sparse infiltrates of inflammatory cells.The lesions were histologically located in the superficial dermis in 3 cases,in the upper and middle dermis in 8 cases,and in the entire dermis in 1 case.Immunohistochemical studies showed that vascular endothelial cells stained positive for CD31 and CD34,while perivascular cells stained negative for CD34.Conclusions AM has specific clinical and pathological manifestations,and pathological examination is essential for the diagnosis of AM.

Objective To investigate the up regulation of captopril on the platelet nitric oxide(NO) synthase and clinical application in patients with ischemic stroke.Methods The washed platelets in vitro of the patients with acute ischemic stroke and healthy controls were added with oxidized LDL(oxLDL) and captopril followed by measurement of platelet NO synthase activity.Plasma oxLDL,NO sythase,NO and platelet NO sythase,NO in 40 patients were measured before oral captopril and after oral captropril 1 month,3 months.Results (1)After the washed platelets in vitro were added with oxLDL,the platelet NO synthase activities of the patients and controls were all significantly decreased( P

Objective This paper is aimed to study the effect of endurance training and supplementation of different-dosage L-Arg on skeletal muscle NOS gene expression in rats. Methods We used the reverse transcription polymerase chain reaction technique to measure the NOS gene expression of skeletal muscle in rats. Results Endurance training significantly increase the eNOS (P

Objective To predict the effectiveness of gentamicin combined with trisodium citrate for locking solution in preventing catheter-related bloodstream infection.Methods This is a retrospective study,ten kinds of common pathogens in catheter-related bloodstream infections were selected from medical intensive care unit (n =9) and cardiac care unit (n =1) between July 2011 and July 2012,and the diffusion method was used to analyze the inhibitory effect of gentamicin combined with trisodium citrate against tested pathogens.Results When trisodium citrate was tested alone,a certain antimicrobial activity could be detected from 10％ trisodium citrate,only Staphylococcus aureus and Staphylococci haemolyticus were inhibited,and then Enterococcus faecium was inhibited by 30％ trisodium citrate.Compared with trisodium citrate,gentamicin showed stronger antimicrobial activity.Staphylococcus aureus,Staphylococci haemolyticus,Enterococcus faecium and Escherichia coli could be inhibited by 0.32 g/L gentamicin and the antimicrobial activity was enhanced by increasing concentrations.The maximum activity was in 5 g/L gentamicin with 7-17 mm diameters.However,the antimicrobial activity of gentamicin didn't increase when combined with trisodium citrate,especially in 4％ trisodium citrate,the Staphylococci haemolyticus was not inhibited by all of the combinations with any concentration of gentamicin.In 0.32 g/L gentamicin,only the combination with 50％ trisodium citrate could inhibit the four kinds of pathogens (Staphylococcus aureus,Staphylococci haemolyticus,Enterococcusfaecium and Escherichia coli) with 8-21 mm diameters,while in 1 g/L,2 g/L,and 5 g/L gentamicin,these pathogens could be inhibited by the combination with only 10％ trisodium citrate,and the diameters were 5-24 mm,12-27 mm,and 17-28 mm,respectively.Conclusion Based on the data,gentamicin combined with trisodium citrate lock solution may play an important role in preventing catheter-related bloodstream infections caused by Gram-positive bacteria and Escherichia coli.

Objective To estimate the diagnostic value of interstitial infiltration pattern for early morphea.Methods Twenty-five cases of early morphea pathologically characterized by interstitial infiltration of inflammatory cells were collected from 2010 to 2012.The clinicopathological features of these cases were retrospectively analyzed.Results The average clinical course was 7.5 months.The primary manifestation was edematous dark erythematous plaques,and interstitial or mixed infiltrate of inflammatory cells was the characteristic histopathological presentation.After anti-inflammatory treatment,lesions markedly improved or disappeared in 70％ of these patients.Conclusions Interstitial infiltration of inflammatory cells is a rare histologic pattern in early morphea.To learn and recognize this pattern may be beneficial to the diagnosis and treatment of early morphea.

Objective:To increase the solubility of the campher and oleum anisi stellati in the syrup of cough and reduce the precipitation of syrup.Methods: The technology of ? cyclodextrin inclusion was used in the experiment. Results: The experiment shows the method may meet the demand of production. Conclusions: The method is very good in the production of cough syrup.