In the course of follow-up analyses of visual field test,it should take more than two visual field tests that had similar results as baseline test,and some factors should be taken into account,such as accordant testing conditions,reliable indeces,test errors and fluctuation effects,and so on.The indeces of Mean Deviation(MD)and Pattern Standard Deviation(PSD)could reflect the whole change trend of follow-up visual field test,while sensitivity value of every point and their pattern deviations could help to analyse tiny changes of visual field tests.Those statistic softwares provided by automatic perimetry should be used adequately.Through the follow-up analyses of visual field test,glaucoma doctors could adjust therapy schemes in time in order to obtain objective intraocular pressure and stabilize visual field and glaucoma.

Objectives: To investigate the role of Xpert MTB/RIF assay for rapid diagnosis of osteoarticular tuberculosis.Methods: From February 2014 to November 2014,pus specimens of 49 osteoarticular tuberculosis patients and 32 nontuberculosis patients were detected by Xpert MTB/RIF system,and the sensitivity,specificity,positive predictive value,negative predictive value,agreement rate of Xpert MTB/RIF system were calculated,and clinical diagnosis was used as the reference standard.All the pus specimens were detected by acid-fast stain and fast culturing(BACTECT MGIT 960),to find the difference of sensitivity and specificity among Xpert MTB/RIF,acid-fast stain,and fast culturing.The role of Xpert MTB/RIF assay for rapid diagnosis of osteoarticular tuberculosis was evaluated through the two factors above.Results: It took 2.3±0.2h to detect each pus specimen by Xpert MTB/RIF.Among the 49 osteoarticular disease patients,46 were positive,3 were negative by Xpert MTB/RIF test.Among the 32 nontuberculosis patients,1 was positive,31 were negative by Xpert MTB/RIF test.The sensitivity,specificity,positive predictive value,negative predictive value,agreement rate was 93.87%,96.87%,97.87%,91.17%,95.06% respectively for Xpert MTB/RIF assay.Among the 46 specimens which were positive by Xpert MTB/RIF test,10 had rifampicin resistance mutation,with the rate of rifampicin resistance mutation as 21.73%.Among the 49 osteoarticular disease patients,8 were positive,41 were negative by acid-fast stain test,the sensitivity was 17.39%,and based on fast culturing test,11 were positive,38 were negative,the sensitivity was 23.91%.All pus specimens of 32 nontuberculosis patients were negative by acid-fast stain test and fast culturing test.As for the sensitivity,Xpert MTB/RIF was superior to acid-fast stain and fast cultureing (P＜0.05).While as for the specificity,there was no statistical difference among Xpert MTB/RIF,acid-fast stain,or fast culturing (P＞0.05).Conclusions: The role of Xpert MTB/RIF assay for rapid diagnosis of osteoarticular tuberculosis is perfect.It is of time saving,high sensitivity and high specificity,which is superior to the traditional methods.

[Objective]To explore the feasibility of SF-36 in assessment of health-related quality of life(HRQOL) in patients with total hip replacement.[Method]The reliability,validity and responsiveness of the SF-36 in 90 total hip replacement patients were analyzed.[Result]The SF-36 was of better validity by factor analysis.All domains of the scale,the test-retest reliability correlation coefficients were better and internal consistency coefficients were more than 0.7 for five domains,except role-physical 0.43;vitality 0.57;role emotional 0.15.The SF-36 could detect the change of quality of life over before and after treatment sensitively(P

Objective The anti tumor and anti metastasis effects of angiocytotoxic therapy (TNP 470/Gemcitabine) were investigated using a model of human pancreatic carcinoma by surgical orthotopic implantation (SOI). Methods The SOI model was developed by suturing small pieces of SW1990 tumors into the tail of pancreas in nude mice. Twenty four male mice were randomly divided into control group, G100 group receiving 100 mg/kg Gemcitabine intraperitoneally injection on days 0,3,6 and 9 after transplantation, and T30 group receiving 30 mg/kg TNP 470 subcutaneous injection on alternate days for 8 weeks. Another thirty two male mice were randomly divided into control group, T15 group, G50 group and combination group (TNP 470 30 mg/kg+ Gemcitabine 50 mg/kg). Animals were sacrificed ten weeks after transplantation. Results G100 group had a significant inhibitory effect on tumor growth of pancreatic carcinoma compared to T30 group, while the metastasis of tumor was significantly inhibited by T30 group compared to G100 group. Neither G100 group nor T30 group showed a significant improvement on survival rate. T15 group and G50 group alone had no significant inhibitory effect on the tumor growth and its metastasis. Mean while a significant anti tumor, anti metastatic effect and a significant improvement on the survival rate were observed in combination group. The inhibitory effect of G50 group was enhanced by 2 times with T30, and 2/8 of the tumors bearing animals were cured by the combination therapy. The level of microvessel density in T30 group was significantly lower than that in T15 group and control group ( P

Objective To explore the effect of brain derived neurtrophic factor(BDNF) gene modified umbilical cord mesenchymal stem cells ( UCMSC ) transplantation on neurological functional improvement in rats after brain trauma.Methods Cerebral contusion model in motor-sensory cortex in rats was established by a weight hammer falling method.UCMSC were cultured and transferred with BDNF gene.After BDNF expression and activity were determined,the BDNF gene modified UCMSC were implanted into traumatic brain.The neurological function was evaluated for 2 weeks after brain injury.And the BDNF expression was determined by using immunohistochemistry.Results Severe neurological dysfunction was seen in animals that had been subjected to contusion brain injury( 10.50 ±0.53 ).A significant improvement on neurological function was found in the UCMSC transplantaion animal( 7.75 ± 0.71 ), compared with only brain injury group (P ＜ 0.01 ).Moreover, rats in BDNF gene modified UCMSC showed the most behavior improvement ( 5.50 ± 0.76 ) (P ＜ 0.01 ).Conclusion BDNF gene modified UCMSC transplantation can survive and migrate, and improve neurological function in brain traumatic rats.

Objective To investigate the effect of NGF gene modified umbilical cord mesenchymal stem cells (UCMSC) transplantation on neurological functional improvement in traumatic brain rats. Methods Cerebral contusion model in motor-sensory cortex in rats was established by a weight hammer falling method. UCMSC were culutred and transferred with NGF gene. After NGF expression and activity was identified,the NGF gene modified UCMSC were engrafted into injured brain. The neurological function was evaluated 2 weeks after brain injury. And the NGF immunostaining was also performed to explore the level of NGF expression. Results Severe neurological dysfunction( 10.50 ± 0.53 )occurred in rats after traumatic brain injury, while the UCMSC transplantaion led to a significant functional improvement( 7.75 ± 0. 71 )(P ＜ 0. 01 ). Moreover, the best functional improvement was found in rats receiveing UCMSC grafts modified with NGF gene (5.38 ± 0. 52 ) (P ＜ 0.01 ). Conclusion NGF gene modified UCMSC transplantation can improve neural behavior in rats with brain trauma.

Objective: To research the proteins differentially expressed during evolution of experimental colorectal carcinoma (normal mucosa→adenoma→carcinoma→liver metastasis) so as to find the early diagnostic biomarker of colorectal cancer as well as to understand its pathogenesis mechanism. Methods: Ninety male rats were injected with 1, 2-dimethylhydrazine intraperitoneally and sacrificed at different weeks to establish the experimental colorectal tumor models (from normal mucosa to liver metastasis). These samples at different stages were collected and divided into four groups (normal mucosa group, adenoma group, carcinoma group, and liver metastasis group). The proteins of these 4 groups were extracted to conduct 2-dimensional gel electrophoresis. The differential protein spots were examined by mass spectrometry and analyzed by bioinformatics. Results: Ten differentially expressed proteins were identified by 2-dimensional gel electrophoresis and mass spectrometry including α-enolase, cardiac α-actin (CA), transgelin protein, myosin regulatory light chain smooth muscle isoform (MRLC), glyceraldehydes-3-phosphate dehydrogenase (GAPDH), haptoglobin, disulfideisomerase (DI), creatine kinase mitochondrial (CKm), heat shock protein-8 (HSP-8) and Keratin complex-2 (KC-2). Conclusions: There exist differentially expressed proteins at various stages during the evolution of colorectal carcinoma. These proteins may be the candidate biomarkers for the early diagnosis of colorectal carcinoma. Proteomic technology is an effective way for preliminary identification of the tumor biomarkers.

To explore the feasibility of stable expression of Hantavirus H8205 strain G1 segment and human IL-2 fusion gene in Vero cells, and to examine the immune protection effects on mice vaccinated with this recombinant eukaryotic expression vector containing Hantavirus G1 gene and IL-2 gene. With the help of lipofectamine, the Vero cells were transfected with pcDNA3.1/HisB-IL-2-G1 and the positive cells were selected by G418. IFAT and SDS-PAGE electrophoresis were used to determine the stable transfection and expression of recombinant protein. Each mouse was inoculated with plasmids intramuscularly (i.m.) three times, 2 boosts were given at 2-week intervals, serum anti-hantavirus antibodies were detected by ELISA and neutralizing antibodies (NAb) were detected by Plaque Reduction Neutralization Test. The fusion protein expressed in Vero cells was 78 kD, corresponding to the estimated molecular size. The neutralizing antibody titers of mice with pcDNA3.1/HisB-IL-2-G1 were 1:20-1:80. IL-2/G1 fusion gene could be transferred in Vero cells and stably express the fusion protein. Specific humeral immune responses in mice can be induced with the recombinant eukaryotic expression vector containing the fusion gene, which lays the foundation for further development of therapeutic HTNV vaccine.

Objective To investigate the construction of compound membrane with corneal stromal cells and collagen-chitosan by tissue engineering technique and its biocompatibility.Methods Rabbit and human corneal stromal cells were separated and seeded into collagen-chitosan membrane.The compound membrane was transplanted into rabbit corneal stroma.Then the growth condition of keratocytes,the effect on normal keratocytes and degradation of compound membrane were detected by corneal confocal microscope,anterior OCT and histological and immunohistochemical methods ex vivo 1,2,4 weeks after grafting.Results The rabbit and human corneal stromal cells grown well in collagen-chitosan scaffold.The compound membrane degradated gradually after grafting.There was no necrosis and dissolvation.Corneal epithelium,stroma and endothelial cells were all normal.Conclusion Collagen-chitosan can be used as a biological scaffold for construction of corneal stroma.Corneal confocal microscopy and anterior OCT are new methods to observe the biological activity of constructed corneal stroma.

Objective To investigate and analyze the behavior and therapeutic status of rheumatoid arthritis (RA) patients. Methods Out patients diagnosed with rheumatoid arthritis in our hospital from May to August 2007 were enrolled. The data including sex, age of onset, site of first hospitalization and medication status were collected and analyzed. Results In this 181 RA patients, the mean age of onset was (53±11) year-old, mean history duration was (10±8) years, the ratio of male to female was 1:4.2. The orthopedics department was the most common site of first hospital visit (32.0%, 58/181) and rheumatology department was the most common site to clarify the diagnosis (62.4% ,113/181). The diagnosis delay caused by patients themselves was (5.9±17.2) months and the delay caused by doctors was (9.0±22.0) months. More than half of the patients were not treated appropriately before they came to our hospital. Methotrexate was the most commonly used DMARDs (67.3%), followed by leflunomide (46.4%), sulfasalazine (37.5%) and hydroxyehloroquine (19.6%). Conclusion In this cohort, the proportion of patients who come to rheumatology department immediately after disease onset is low. There is delay between symptoms and final diagnosis. More than half of the patients are not treated appropriately.