Objective To study the role of OIf-1/EBF associated zinc finger protein (OAZ),a transcription factor encoded by a positional systemic lupus erythematosus (SLE) candidate gene,in the function of mesenchymal stem cells (MSC) of SLE patients by silencing this gene.Methods OAZ mRNA levels of bone marrow MSC obtained from 5 SLE patients and 5 healthy controls were detected by real-time PCR.Bone marrow MSC obtained from 6 SLE patients were incubated with specific siRNAs for 3 days,then cells were harvested for OAZ measurement,Idl-3 and CCL2 mRNA levels were tested by real-time PCR,and levels of CCL2 were detected in culture supernatants using ELISA.Differences between groups were analyzed using t-test or MannWhitney test.Results ① OAZ mRNA levels of bone marrow MSC were significantly elevated in SLE patients (0.013±0.016) compared to healthy controls (0.001±0.000,P=0.009).② After OAZ silencing,the expression levels of OAZ,Id1,Id2 and ld3 mRNA were significantly decreased (△Ct 10.3±0.7,15.2±1.6,8.1±1.4,10.5±0.6 vs 8.7±0.7,14.1±1.2,7.1±1.5,9.8±0.6) (P all ＜0.05).③ Both the expression levels of CCL2 mRNA (△Ct 2.2±1.1 vs 3.0±1.1 ) and the levels of CCL2 protein in culture supernatants [(341±29) pg/ml vs (304±19) pg/ml] were significantly increased in OAZ silencing group comparing to those in the control group (P all ＜0.05).Conclusion OAZ gene expression is significantly elevated in bone marrow MSC of SLE patients.OAZ may affect autoantibody production in SLE patients by regulating CCL2 expression.

Objective To describe the understanding level of disease of children with leukemia and their ways of obtaining disease information in order to help nurses and parents to select appropriate content and manners to communicate with children about disease information.Methods In-depth interviews were conducted with 25 children' parents using a descriptive qualitative research method,and the data were analyzed using content analysis.Results Children during remission stage of leukemia had different understanding levels of their disease.Ways of children with leukemia to obtain disease information was correlated with their mental maturity.Conclusions Disease information should be told according to children's age,disease course and level of thinking,and health professionals and parents could provide appropilate ways of obtaining information for children on basis of their mental maturity.

Objective To find an efficient and practical reconstruction algorithm for the fluorescence molecular tomography basing on total leastsquares rule as well as the normalized conjugate gradient method.Methods The finite element method was used to get the weighting matrix from the forward diffusion model.For the inverse reconstruction problem,the total least-squares rule was employed.The normalized conjugate gradient method was applied to find the fluorochrome information in the objective area.Results The simulation experiments showed that images reconstructed by the total least-squares rule were more accurate than those reconstructed by the least-squares rule under the same circumstances when noise existed.The presented algorithm could also give consistent results when the initial guesses varied in a wide range.Conclusion The algorithm presented in this paper offers a practical and efficient reconstruction for the fluorescence molecular tomography.

Objective To develop the fluorescence molecular imaging system and obtain the 3D images of near-infrared fluorescent probe in tissue-like solution.Methods Weak optical signals were acquired with hypothermal cooled CCD camera.The system captured the fluorescent images of different projections at rotating the tissue phantom.The photon propagation in tissue followed the diffusion approximation theory.The 3D image of probe was calculated with a fast reconstruction algorithm based on finite element approach.Results The imaging system could obtain the full-angle dense raw dataset.The reconstruction algorithm had capacity to recover the position and contour of the fluorescent target included in diffusive medium.Conclusion The results from phantom experiments are promising and show the potentials to act as a platform for in vivo fluorescence tomography.

AIM:In order to ensure the quality stability of Fructus Polygoni Orientalis,to study the determination method of the fingerprint of Fruetus Polygoni Orientalis and to establish the fingerprint of Fructus Polygoni Orientalis.METHODS:The HPLC assay was used to establish the fingerprint of Fructus Polygoni Orienlalis and 28 pieces of goods were compared.RESULTS:The fingerprint of Fructus Polygoni Orientalis with 7 common peaks was established.The relative retention time and the ranges of relative area of the common peaks were determined.CONCLUSION:The established fingerprint can be used for the quality control of Fructus Polygoni Orientalis.

Objective:To determine the content of cyclohexane, ethyl acetate, methanol, methylene chloride and trichloromethane in rupatadine fumarate by headspace gaschromatography. Methods:A DB-WAXETRR capillary column(30 m × 0. 32 mm,0. 25 μm)was used and the carrier gas was nitrogen. The detector was an FID and the inlet temperature was 200℃ . The column temperature program was with the initial temperature of 35℃,maintained 10 min,and then risen to 220℃ with the rate of 20℃·min -1 ,and maintained 5 min. Results:Cyclohexane,ethyl acetate,methanol,methylene chloride and trichloromethane showed a good linear relationship within the range of 77. 590 1- 698. 310 9 μg·ml -1(r = 0. 999 7),102. 166 6- 919. 499 4 μg· ml -1(r = 0. 999 8),62. 744 7- 564. 703 2μg·ml -1(r = 0. 999 9),12. 011 2- 108. 101 1 μg·ml-1(r = 0. 999 6)and 1. 262 8-11. 365 6 μg·ml -1(r = 0. 999 6). The average recovery was 103. 9% ,103. 5% ,104. 9% ,107. 1% and 103. 4% and RSD was 2. 3% ,2. 6% ,3. 1% ,2. 8% and 4. 5%(n = 9),respectively. The five residual solvents were not detected out in rupatadine fumarate. Conclusion:The method is stable,simple,sensitive and accurate,and can be used for the determination of residual solvents in rupatadine fumarate.

Objective To investigate the effect and mechanism of murine bone marrow mesenchymal stem cells(BM-MSCs)transplantation on B-cell activating factor(BAFF)expression and B cell activation of MRL/Ipr mice.Methods Eighteen female MRL/Ipr mice were divided into the treatment group and the control group.Five female BAL B/C mice were used as negative controls.At the age of 18 weeks,the treatment group was transplanted with 1×10~6 murine BM-MSCs through vena caudalis,the control group was treated with 0.5ml sodium chloride.Enzyme linked immunoserbent assay(ELISA)was used to measure the level of the BAFF,IFN-γ,IL-2 and IL-10 in the serum.The percentage and numbers of Marginal zone,T1 and T2 B cells in spleen were detected by flow cytometry.Results①Eight weeks after transplantation,the level of BAFF [(32±14)ng/ml]in serum of the treatment group decreased significantly than the control group[(47±13)ng/ml](P＜0.05)as well as the level of serum IL- 10,IFN-γ and IL-2 levels[(19±7)vs(40±13)pg/ml](P＜0.01)[(25±20)pg/ml vs(38±25)pg/ml][(73±10)pg/ml vs(80±15)pg/ml].② Eight weeks after trans-plantation,the mice in the treatment group had lower percentages of marginal zone B cells[(15±4)% vs (21±5)%],and the numbers of marginal zone B cells were significantly decreased in the treatment group as compared with the control group[(9±6)×10~6 vs(19±10)×10~6,P＜0.05].③ Eight weeks after transplantation,the mice in the treatment group had lower percentages of T1 and T2 B cells[(3.4±2.1)% vs(7.3±4.0)%][(2.6+1.4)%vs(4.8±2.7)%],and the numbers of T1[(2.7±1.7)×10~6 vs(5.1±2.0)×10~6,P＜0.05]and T2 B cells[(2.0±1.2)×10~6 vs(3.7±1.7)×10~6,P＜0.05]were both significantly decreased in the treatment group as compared with the control group.Conclusion BM-MSCs transplantation decreases the expression of BAFF in association with the diminished production of the pathogenic cytokines IFN-γ and IL-10.Inhibition of BAFF also results in decreased numbers of T1 and T2 B cells and MZ B cells.

Objective To investigate the infection status and genotype distribution of human papillomavirus (HPV) infection in Changzhou district ,and to provide a theoretical basis for the prevention ,development and clinical diagnosis and treatment of HPV . Methods From October 2015 to July 2016 ,1 718 cases of female cervical epithelial cells were collected ,and 28 kinds of gene typing were detected by PCR‐reverse dot blot hybridization .Results The infection rate:1 718 cases of women were collected ,the positive HPV infections were 34 .23% .The infection types :single infection rate was 23 .57% (405/1 718) .The high‐risk HPV subtype in‐fections accounted for 17 .17% (295/1 718) and the low‐risk HPV subtype infections accounted for 5 .18% (89/1 718) ,suspected high‐risk infection was 1 .22% (21/1 718) .Multiple infection rate was 10 .94% (188/1 718) .HPV52 was the most common infec‐tion among high‐risk HPV infection ,the positive rate was 16 .16% (95/588) .HPV61 was the most common infection among low‐risk HPV infection ,the positive rate was 4 .08% (24/588) .There was no significant difference between age and HPV positive rate . The 61-70 age group had the highest HPV multiple infection rate in all age groups .Conclusion The high HPV infection is ob‐served in Changzhou district ,among which single HPV52 infection and the high‐risk HPV infection are the most common infec‐tions .There is difference in HPV infection among different age groups .

Objective To evaluate the reliability and validity of the Chinese Version of Communication and Sharing of Information Scale(CSI) in the the assessment of the efficacy and quality of collaboration of the physician and nursing related staffs.Methods All the sample enrolled from 10 hospitals of Tianjin,all the subjects voluntarily signed the informed consent.Totally 600 subjects were tested by CSI.Exploration and confirmation factor analysis were used to examine the construct validity.Cronbaeh' s α was applied for examining internal consistency of the scales,the correlation analysis was used to examining the test-retest reliability of the scales.Results Exploratory Factor Analysis revealed that Communication and Sharing of Information Scale included 3 factors:Communication with nursing related staff,Communication with physician,Medical information sharing.Confirmation Factor analysis revealed that x2/dfwas 5.760,NNFI 0.900,GFI 0.945,AGFI 0.923,REMEA was 0.06,all reached the correction criteria of the scale,indicated that this scale had good construction validity.Cronbach' sαof the total scale was 0.870,the Cronbach' s α of the 3 factors were 0.780,0.788,0.815 respectively,indicated this scale had good inner-consistency.The total scale test-retest reliability was 0.870 after 1 week in 100 subjects randomly enrolled from all the previous subjects,indicated this scale had good reliability.Conclusion CSI has good reliability and validity and is suitable to assess the efficacy and quality of the collaboration of the physician and nursing related staffs.

In this study, the rapid resolution liquid chromatography quadrupole time-of-flight mass spectrometry ( RRLC-QTOF/MS ) was used to profile the metabolites of urine samples from Childhood Pneumonia ( CP) patients and healthy controls and find the potential biomarkers which can support evidence to early diagnose and cure the disease. Choose 10 CP patients ( age 47. 72 ± 2. 35 months) and 10 healthy controls ( age 46 . 65 ± 1 . 97 months ) . The urine samples were analyzed by RRLC-QTOF/MS and then the resulting data matrices were analyzed by principal components analysis ( PCA ) to find the potential biomarkers. Urine samples of CP patients were successfully distinguished from those of healthy controls. A total of two significantly changed metabolites have been found and identified as potential biomarkers. It is suggested that the disorder of purine metabolism and amino acid metabolism may play an important role in the mechanism of CP.