Objective To explore the role of Th17/IL-17 in the pathogenesis of asthma in children.Methods Thirty asthma children (asthma group) and 20 healthy volunteers (control group) were selected as our subjects.Percentage of Th17 cell in peripheral blood mononuclear cell (PBMC) of asthma children was detected by flow cytometry,the level of IL-17 and IgE in plasma were examined by enzyme linked immunosorbent assay.Results Proportion of Th17 cells in PBMC of children in asthma group was (1.83 ± 1.01) ％,significantly higher than that in control group ((1.02 ± 0.49) ％ ; t =3.896 ; P ＜ 0.01).The IL-17 level in control group was (19.11 ± 3.23) ng/L,significant lower than that in asthma group ((34.23 ± 4.88) ng/L;t =6.261 ;P ＜ 0.01)).The Ig E level in asthma group was (399.4 ± 45.1) ng/L,significantly higher than in control group((58.2 ± 19.7) ng/L;t =7.244,P ＜0.01).The level of IL-17 in plasma had a postive relationship with the proportion of Th17 cells(r =0.882,P ＜0.01),but not relationship was seen with the level of IgE (r =0.375,P ＜ 0.05).Conclusion Th1 7 cell is associated with asthma development of children,and the reason may due to probably aggravating asthma condition through increasing inflammation secreting IL-17.

Objective To analyze the multi-slice spiral CT(MSCT) angiographic features of hepatic hemangioma accompanied with peripheral arterial-portal shunt(APS),and to assess the MSCT diagnostic ability and clinical value for peripheral APS.Methods 12 cases of hepatic hemangioma accompanied by peripheral APS underwent triphase enhanced MSCT scan,the images were post-processed with maximum intensity projection(MIP),volume rendering(VR) and then analysed.Results During hepatic arterial phase,the peripheral APS and transient hepatic parenchymal enhancement(THPE) could be visualized on MIP and VR.APS were classified into four types according to the findings on VR and MIP.TypeⅠ: Branch of the portal veins early enhancement in peritumoral wedge-shaped enhanced area,more frequently appeared as parellel track sign;TypeⅡ: Showed early opacification of small portal branchs near tumors,APS more frequently found in peritumoral wedge-shaped enhanced area;Type Ⅲ:Included both typeⅠand typeⅡ signs;Type Ⅳ: Only showed peritumoral THPE.Conclusion MSCT angiography provides a new effective technique for demonstrating and understanding peripheral APS and THPE.

Objectives To analyse the economic and social benefit of improvement of latrines in countryside of Hunan province,China.Methods 6 counties were selected as observational points based on the character of geographical position and the types of non-hazard treatment of feces.The lab tests,questionnaire investigation,retrospective survey and mathematical models were used and the prevalance rate of intestinal infectious diseases and infectious rate of parasite were analyzed.Results All the three types of non-hazard treatment facilities fulfiled the requirement of The Hygeian Standard of the Fecal Decontamination.Compared with the villages without improvement of latrine,the infectious rates of parasite was lower by 61.32%,the prevalance rate of intestinal infectious diseases by 45.25%,and the incidence rates of infectious diarrhea by 42.62% in villages where the latrines improved.The improvement of latrine will save 28 379.1 yuan for one year and 2.45 yuan for one person in preventing intestinal infectious diseases and infectious diarrhea.Conclusion Three types of non-hazardous treatment of feces have obvious effectiveness on disease prevention,which will produce distinct economic and social benefit.

Objective: To explore the heat injury level of vocal cord by different power of the Diomed 25 semi conductor laser so as to provide scientific evidence for clinical laser therapy of larynx diseases. Methods: Canine was used. The power of laser was set on 5, 10 and 20 W respectively, and the time of laser exposure was fixed on 2 s.When canine vocal cord was hit by laser in vivo , the depth and width of the tissue heat injury were measured. Results: When laser hit with 5, 10 and 20 W for 2 s exposure time, the corresponding depth of the tissue heat injury were 0.2 0.4,0.4 0.6,0.8 1.0 mm respectively, the corresponding width of the tissue heat injury were 1.0 1.7,1.7 2.0,2.0 2.6 mm respectively. There was significant difference between the tissue heat injury levels caused by different laser power under the same exposure time( P

OBJECTIVE:To optimize the formula of piribedil hydrochloride orally disintegrating tablets and to investigate their related indexes.METHODS:Taking the contents of crospovidone(PVP XL)(disintegrating agent),amylum pregelatinisatum(loading agent) and Gum Acacia(glidant) as factors,the disintegrating time(td),the wet time(t) and the suspend stability(?A) as the evaluate indexes to carry on the orthogonal experimental to optimize the formula.The dissolution curve of the optimized formula was drawn.RESULTS:The optimized formula for the piribedil hydrochloride orally disintegrating tablets were as follows:the contents of crospovidone(PVP XL),amylum pregelatinisatum and Gum Acacia were 15%,20%,and 15% respectively.The prepared orally disintegrating tablets disintegrated completely within 30s and dissolved basically within 2min.CONCLUSION:The prepared preparation can meet the related standards specified of China Pharmacopeia.

OBJECTIVE: To determine Ginsenoside Rg1,Ginsenoside Re and Ginsenoside Rb1 in Yixin fumai granula by HPLC.METHODS: Samples were determined on a Diamond C18(150 mm?4.6 mm,5 ?m).The mobile phase consisted of accetonitrile-water by gradient elution with flow rate at 1 mL?min-1,UV detection wavelength at 203 nm,column temperature at 25 ℃ and sample size at 10 ?L.RESULTS: The linear ranges of Ginsenoside Rg1,Ginsenoside Re and Ginsenoside Rb1 were 0.645～6.450 ?g(r=0.999 8),0.54～5.40 ?g(r=0.999 7) and 0.605～6.050 ?g(r=0.999 9),respectively;the average recoveries were 100.59%(RSD=2.03%),98.70%(RSD=1.46%)and 98.99%(RSD=1.19%),respectively.CONCLUSION: The method is sensitive,simple and accurate,and it can be used for the quality control of Yixin fumai granula.

Objective To study clinical value of a new therapy for tumor thrombus of portal vein.Methods Twenty patients received direct puncture to portal vein or tube insertion under ultrasonographic guide.Among them,16 patients received direct injection and 4 had tube insertion.It provided high concentration of anticancer drugs directly to the tumor thrombus.Results The thrombus disappeared only one case,the mass of tumor thrombus decreased in the portal vein trunk in 3 cases and obviously was controlled in 6 cases.The survival time in the group with treatment was longer than in that the control group.Conclusion This method is an effective,safe and easy procedure,it has active significance for advanced hepatic cancer.

Purpose:To investigate the relationship between cell apoptosis and dephosphorylated RB protein in human breast cancer. Methods:In our work,human breast cell lines (MCF-7/S,the chemosensitive cell line and MCF-7/ADR,the chemoresistent cell line)were evaluated. Chemosensitivity of two cell lines was evaluated by the MTT colorimetric assay;the expressive levels of dephosphorylated RB protein were detected with immunocytochemistry. Apoptosis rates were determined by flow cytometry(FCM). Results:ADR inhibited proliferation of chemosensitive cell line MCF-7/S ,the 50% inhibition concentration (IC 50 ) was 0.128 ?g/ml;And IC 50 of MCF-7/ADR was 10.89 ?g/ml. The chemotherapeutic sensitivity of MCF-7/S was more than that of MCF-7/ADR by 86 times . Before treatment with ADR,phosphorylated RB protein was positive in two cell lines,but dephosphorylated RB protein was negative;After treatment of different concentration ADR,when the concentration of ADR was increased,expression of dephosphorylated RB protein elevated accordingly in MCF-7/S,but no significant change in MCF-7/ADR. Apoptosis and cell cycle was detected by FCM assays shows ADR induced apoptosis of MCF-7/S more than MCF-7/ADR(P0.05).

Objective:To detect the expression of upstream stimulatory factor 1(USF1) and its tempo-spatial distribution during mice teeth development. Methods: Total protein was extracted from P1 and P11 d mice first molar teeth germ, and Western blot for USF1 was undertaken. Paraffin sections of first molar teeth germs from E13, 16, 19, P1, 5, 8, 11, 21 d and 6-month-old adult mice were prepared respectively and immunohistochemical staining was carried out. Results: Western blot analysis identified one Mr 43 000 protein from P11 d mice teeth germs, but none from P1d mice. Immunohistochemically, evidently positive staining for USF1 in mice teeth germs began from P5 d, and extended to P11 d, which was mainly confined to the cytoplasm of secreting ameloblasts and odontoblasts, but no staining in bud, cap and early bell stages of tooth germ. However, after tooth eruption on P21 d, USF1 became negative again, although it was still positive in the adjacent muscles, and the same result was observed in adult mice tooth. Conclusion: USF1 is expressed in tooth germ, which localizes solely in secreting ameloblasts and odontoblasts, and its expression was quite dynamic during mice tooth development.

Objective To obtain recombinant human Smith D1 (Sm D1) antigen and establish detecting assay.Methods Human Smith D1 antigen was synthesized by PCR using human Leukemic cDNA. The prokaryotic expression vector pGEX-ST-Sm D1 was constructed and transformed into E.coli.BL21 cell.Protein expressed under the induction of IPTG.We established DIGFA for detecting anti-Sm D1 antibodies with purified Sm D1 antigens.Results Sequence and restriction analysis revealed Sm D1 gene was cloned in frame into pGEX-5T,SDS-PAGE profile showed a clear protein band with a relative molecular weight of 39 000 and western blotting indicated that the expressed product specifically reacted to polyclonal anti-human Sm D1 genes.There was no significant difference between DIGFA and IB.The agreement between DIGFA and IB was 91.7% as calculated by Kappa statistical method.The sensitivity and specificity of DIGFA were 100% and 83.3% repectively.Conclusions Human Sm D1 gene is successfully cloned、 expressed and purification.The DIGFA,using purified Sm D1 antigens,is as good as IB,rather simpler, more rapid and reliable assay.