Objective To verify the effects of different conc entrations of auecifemine on the function of osteoblast cell expression and oste ogenic ability in vitro . Methods Iliac spongy bone specimens were obtained from twel ve adult patients scheduled surgery. After the bone pieces were treated with col lagenase-trypsin, osteoblasts were obtained from cancellous bones. Then the ost eoblasts were purified and cultivated. They were cultured in medium with various concentrations(1?10 -11 , 1?10 -9 , 1?10 -7 , 1?10 -6 , 1 ?10 -5 , 5?10 -5 mol?L -1 ). The alkaline phosphatase (ALP) acti vity, osterocalcin and osteogenic ability were examined by biochemical assay and radioimmunologic assay (RIA), respectively. Results The co rrelation of auecifemine of different concentrations with ALP activity and osteo calcin secretion was positive. Auecifemine of lower concentrations (1?10 -11 mol?L -1 , 1?10 -9 mol?L -1 and 1?10 -7 mol?L -1 ) s howed the stimulating effect on osteogenic ability and but not higher concentrat ion. Conclusion Estrogen can increase osteoblast ALP activi ty, osteocalcin production, and osteogenic ability.

Objective To assess the effect of sodium hyaluromate (HA) on degenerative disorders of the knee joint (KJ). Methods A prospective randomized controlled clinical trial was conducted. The experimental group received injections in the compartments of the involved KJ with 1% HA 20mg, whereas the control group received prednisolone (PS) of 75mg once a week with five injections as one course. One week before and after the treatment , clinical symptoms, amount of interleukin-6 (IL-6) and total protein of synovial fluid were measured and compared. Results Both drugs could relieve the clinical symptoms of KJ degenerative disorders. In HA group, marked improvement rate was 52.78% and failure rate was 2.86%, whereas marked improvement rate was 39.29% and failure rate 17.86% in PS group. The declined levels of IL-6 in synovial fluid were notably greater in HA group than those in PS group. Conclusion Intra-articular injection of HA is effective and safe in treating KJ dgenerative disorders with mild adverse reactions.

Objective To explore the feasibility of home-based fecal occult blood self-test (home FOBTself-test) in the community colorectal cancer (CRC) screening,thereby to improve the community's compliance with colorectal cancer screening.Method Community medical staff and residents in Dongcheng District was recruited by means of self-reported questionnaires about personal wishes for home FOBT self-test screening since August 2013 to January 2014.Finally,using x2 test and logistic regression analysis to analyze the results of the final questionnaire.Of the total of 6,147 copies of the questionnaire,5 943 copies were valid questionnaires (Community medical staff:resident=114:5 829).Results 88.6％ of community medical staff and 69.1％ of community residents expressed willingness to choose home self-test FOBT.Univariate analysis showed that wishes of community medical staff for FOBT screening were unrelated with gender (P=0.635),age (P=1.000),CRC high-risk or not (P=0.418),awareness of home self-test FOBT(P=0.693).The wishes of community residents for FOBT screening related with gender (P=0.012),age (P=0.000),CRC high-risk or not (P=0.000),awareness of home self-test FOBT (P=0.000).Colorectal cancer risk was the greatest impact on wishes for FOBT screening (OR 值 (95％ CI) =8.594 (7.279-10.148)).Conclusions Home FOBT self-test was simple,fast,easy to use and widely accepted in CRC screening of community residents,therefore it may improve the community's compliance with colorectal cancer screening.Screening for CRC is strongly recommended.

Objective To develop a molecular method to type coagulase-negative staphylococci(CNS) using 16S～23S internal transcribed spacer-PCR(ITS-PCR)Methods ITS-PCR was performed to identify six control strains and a collection of 171 clinical strains, identified as CNS by AutoScan-4 System The API Staph system also tested the discrepant strainsResults A total of 11 CNS species from control strains and clinical ones confirmed by the API Staph system were resolved by their unique ITS-PCR patterns These results constructed the primary database of CNS in the laboratory They were obtained with Staphylococcusepidermidis, Shaemolyticus, Shominis, Ssaprophyticus, Sxylosus, Swarneri, Scapitis, Scohhni subspurealyticum,S sciuri, Sauricular, Ssimulans Only S sciuri showed intraspecific polymorphism on its ITS-PCR pattern 9357%(160/171) clinical isolates can be identified by this ITS-PCR data base and the accuracy is 9375%(150/160) The coincidence of the API Staph system and ITS-PCR was better than that of AutoScan-4 system results There is at lest 936%(16/171) CNS results from AutoScan-4 system are falseConclusion ITS-PCR is verified as a valuable, easy to perform, rapid, high reliable and low cost molecular typing method for coagulase negative staphylococci

One hundred and thirty seven pafients diagnosed by coronary angiography were recruited in the study and divided into coronary heart disease group(CAD)and control group.Relationship between serum apolipoprotein M levels and the severity of stenosis of coronary arteries was analyzed.In covariate analysis,serum apolipoprotein M levels were significantly lower in CAD group than those in control group adjusted for sex,age,body mass index(BMI)(P＜0.05).By stepwise muhiple regression,serum levels of apolipoprotein M were correlated positively with BMI(r=0.65,P＜0.01),and correlated negatively with total cholesterol(TC)(r=-0.53,P＜0.01)and low density lipoproteins(LDL-C)(r=-0.42,P＜0.01).Serum levels of apolipoprotein M were correlated negatively with the score of coronary stenosis(r=-0.62,P＜0.01).The results suggest that apolipoprotein M might be related to the development of coronary artery disease.

A novel and highly sensitive voltammetric enzyme-linked immunosensor was developed based on tyramine) oxidation deposition. It was shown that gold nano-particles(colloid Au) could be used as a platform to immobilize antibodies by adsorption. By a sandwich immunossary format with goat-anti-human IgG labled Horseradish peroxidase(HRP) as the second antibody and catalytic amplification by biotin-tyramine, the immunosensor′s) catalytic ability to hydrogen peroxide increased nearly 20 times), the sensor exhibitd a linear response to human IgG in the concentration range from 1.5 μg/L-22 mg/L, and the detection limit was 0.1 μg/L), the regression equation could be expressed as Δi_p(μA) =2.8859c(mg/L)+17.152 with a correlation) coefficient of 0.9872. The immunosensor can be used to quantitatively determine hIgG in the sample) of human serum).

A novel simple,sensitive fluorescence immunosensing method based on aptamer-plasmid complex amplification was developed. This method utilized the specific recognition between antibody and antigen as well as aptamer-plasmid complex and the intercalation of fluorescence dye SYBR Green Ⅰ in the groove of duplex plasmid DNA in detection of Platelet-Derived Growth Factor BB (PDGF-BB). The immunoassay was performed in the microtiter wells in which rabbit anti PDGF-BB antibody was immobilized. The PDGF BB analyte was captured by the primary antibody and then sandwiched by the aptamer-plasmid DNA complex. The introduction of fluorescence dye SYBR Green Ⅰ allows for the detection of the sandwiched immunocomplex of antibody/anigen/aptamer-plasmid complex. Under the optimized conditions of salt concentration,ratio of aptamer to PUC19,and SYBR Green Ⅰ concentration,the proposed method offers a linear detection range from 0.2 μg/L to 200 μg/L with a detection limit of 0.1μg/L.

dneys, renal hilars and adjacent blood vessels. Conclusions Most of the adrenal lymphoma manifested as large soft tissue masses with shght contrast enhancement. The larger lesions were likely to invade the ipsilateral kidney and adjacent blood vessels.

Objective To explore the change rules of peak area ratio of STR loci to Amelogenin (AMEL) locus (STR/A M EL ), a sex-determ ining gene in DNA degradation, and to evaluate the application of STR/A MEL value in the estim ation of DNA degradation degree. Methods DNA w as extracted from iliopsoas, and the variations of STR/A MEL value (Penta E/AMEL, Penta D/AMEL, FGA/AMEL) w ere analyzed after the artificial degradation w as m ade by DNaseⅠ, and the changes of these three ratios of the iliopsoas naturally degraded in an outdoor environm ent w ere also analyzed. The regression curves w ere analyzed using the periods of DNA degradation and outside the body as the independent variable (x) and the STR/A MEL value as the dependent variable (y) and three curve equations under tw o conditions w ere established. Results B oth under the conditions of artificial and natural degradation, STR/A MEL value had a negative relationship w ith the degradation tim e. The relationship betw een STR/A MEL and degradation tim e can be w ell sim ulated by the cubic function. R2 w as over 0.99 under controlled degradation condition and over 0.86 under natural degradation condition. Conclusion The STR/A MEL value (Penta E/AMEL, Penta D/AMEL , FGA/AMEL ) is negatively related w ith the DNA degradation degree, w hich follow s m athem atical regression m odels strictly, and it m ight be applied to evaluate the DNA degradation degree.

Background and purpose:Diffusion-weighted whole-body imaging with background body signal suppression (DWIBS) can be used for MR imaging systemic examination, especially the lymph node and bone diseases can be clear, and the imaging result is similar with PET. The aim of this study was to compare the value of clinical application in the diagnosis of malignant metastatic osteopathic between DWIBS and bone scintigraphy mapping. Methods:Thirty-six specimens conifrmed with malignant tumors by the pathology of operation or biopsy underwent both DWIBS imaging and bone scintigraphy mapping, chi-square test was used for comparing the detection results of bone metastasis by this two imaging methods. Results:Thirty (165 positions in all) of 36 malignant tumor patients were conifrmed as having bone metastasis, compared that 26 patients (143 positions) with DWIBS method and 23 patients (132 positions) with bone scintigraphy mapping were detected, but there was no statistical signiifcance between this two imaging methods (χ2=1.002, P=0.506). The sensitivity, positive predictive value (PPV) and accuracy of the detection rate of bone metastasis were similar in DWIBS and bone scintigraphy, with 86.7%, 96.3%, 86.1%and 76.7%, 88.5%, 72.2%, respectively;but the speciifcity and negative predictive value (NPV) in DWIBS (83.3%and 55.6%) was higher than that of in bone scintigraphy (50.0%and 30.0%). The detection rates of different bone metastasis with DWIBS and bone scintigraphy were 86.7%(143/165) and 80.0%(132/165), and it was no signiifcant difference (χ2=2.640, P=0.104);DWIBS method was better than bone scintigraphy in the detection of osseous metastasis on pelvis and limbs long bone, and there was different signiifcant (χ2=6.783 and 7.636, P=0.023 and 0.016). Conclusion:DWIBS could detect bone metastatic lesions effectively, and there is ifne consistency with bone scintigraphy. Therefore, DWIBS is to hope to be extended and applicated clinically.