AIM: To observe the anti-atherosclerotic mechanism of Dahuang Zhechong Pill(Radix et Rhizoma Rhei,Eupolyphaga seu steleophaga,Hirudo,Radix Scutellariae,etc) in the aspect of VSMC proliferation and apoptosis,collagen synthesis in the vessel wall. METHODS: The atherosclerotic model was established by hypercholesterol feeding together with immune-injured endothelium in rabbits.The level of hydroxyproline in vessel wall was determined.Histological changes were examined by electronic microscopes.The proliferation of VSMC was determined by immunohistochemistry and apoptosis of VSMC by TUNEL. RESULTS: Dahuang Zhechong Pill improved the histological changes of vessel wall of rabbit with atherosclerosis and reversed vascular remodelling.The level of hydroxyproline in the vessel wall and the number of proliferation of VSMC decreased,and the number of apoptosis of VSMC increased in Dahuang Zhechong Pill-administered groups compared with the model control group. CONCLUSION: Dahuang Zhechong Pill can inhibit the development of atherosclerosis by inhibiting the synthesis of collagen fiber in vessel wall and the proliferation of VSMC as well as inducing the apoptosis of VSMC.

Objective: To observe effects of Yiangxuefukang Granules on the contractile function of uterine smooth muscles. Methods: Both the uteri of Sprague Dawley rats within 4～6 days postpartum and the uteri isolated from women of caesarean operation were used to study the effects of Yiangxuefukang Granules on the contractile amplitude, frequency and vitality of uterine smooth muscles. Results: The Granules significantly increased the contractile amplitude, frequency and vitality of both rat uterine smooth muscless in vivo and human uterine strips isolated.Conclusion: The Granules can be used in the treatment of the postpartum hemorrhage and the poor uterine involution caused mainly by lacking in the strength of uterine contraction.

Objective To explore the impact of concentrated teaching, self-help training, intensive training, scenario simulation and other systemic training methods on the health teaching level of community health education staff,and the impact of community health education on cultivation of residents' health behavior before and after training. Methods 60 community doctors and nurses involved in systematic training. Taught concentrated 8 hours every week, and continuous for 4 weeks with medicine, psychology, sociology, pedagogy, aesthetics and production of courseware. Trainees who awarded 80 points or more in examination took part in simulated scene training, which completed a 30-minute design of concentrated health lesson and a 15-minute design of one to one health lesson in written form and multimedia teaching. Teaching effect-site was evaluated by the residents of the community lectures. The impact on cultivation of residents' behaviors was evaluated with ruler evaluation method.Results The community health care workers' teaching ability had significant change after training: plan design (2.32 ± 1.41 vs 4.26 ±0.61 ), lectures (2.63 ±0.89 vs 4.09 ±0.93), teaching skills ( 1.97 ± 1.32 vs 3.89 ±1. 13 ), teaching aids configuration ( 1.68 ± 1. 43 vs 3.97 ± 1. 26 ), educational methods ( 2.01 ± 0. 96 vs 4.03 ±0.82), time control (2.83 ±0.26 vs 4.67 ±0.25), the classroom atmosphere (2.78 ± 1. 13 vs 4.12 ±0.67),courseware ( 2.48 ± 1. 08 vs 3.89 ± 1.02 ) , teaching the image ( 2.15 ± 1.15 vs 4.06 ± 0.78 ), overall evaluation (2.36 ± 1.21 vs 4. 16 ± 0.65 )(P ＜ 0. 0 1 ). After training, community residents' knowledge on community health care workers' one to one health education and collective health education training, and positive evaluation of helpful to students' behavior improved significantly ( x2 = 17.19,36.37 ;8.91,20.98 ;34.14,32.29) ,and all had remarkable difference( all P＜0. 01 ). Evaluating the impact of health care workers' teach on cultivating residents'health behavior after one year, it improved significantly (P ＜ 0. 01 ). Conclusion Systemic training can improve health education ability of community medical staff and the impact on cultivating residents' health behavior is remarkable.

Objective To observe the effects of Fuyanshu Capsule on phenol mucilage-induced endometritis rats and the possible anti-inflammation mechanism of the therapeutic effects.Methods Chronic endometritis in rats was induced by injection of phenol mucilage suspension into the uterus.Sixty female SD rats were randomly divided into 6 groups,namely,sham-operation group (distilled water,10mL/kg),model group,Jinji capsule group (0.65 g/kg),and Fuyanshu Capsule groups (1.8 g/kg,0.9 g/kg and 0.45 g/kg).After the rats were treated 28 days with corresponding medicine by intragastric administration,the pathology of the endometrium and changes of tumor necrosis factor α(TNF-α)and interleukin-2 (IL-2)levels were detected to evaluate the effects of Fuyanshu Capsule. Results Fuyanshu Capsule (1.8 g/kg and 0.9 g/kg)ameliorated the body weight reduction caused by endometritis in rats.Fuyanshu Capsule (1.8 g/kg,0.9 g/kg and 0.45 g/kg)reduced the ratio of the swelling uterus and ovaries to body weight of the rats.It ameliorated obviously the hyperplasia,necrosis and degeneration of endometrial epithelia and infiltration of inflammatory cells.The capsule (1.8 g/kg)decreased the serum IL-2 level in the rats with phenol mucilage-induced endometritis. Conclusion The anti-inflammatory effect of Fuyanshu Capsule on chronic endometritis induced by phenol mucilage in rats may be related to the decrease of IL-2 level.

Objective:To investigate the production of cytokines from macrophages induced by Treponema pallidum membrane proteins Tp0971.Methods: The Tp0971 was amplified by PCR from a preparation of T.pallidum genomic DNA and then sub-cloned into the prokaryotic expression vector pET28a(+)to construct the recombinant plasmid pET28a(+)/Tp0971.The recombinant plasmids were transfected into E.coli Rosseta strain to express recombinant protein Tp0971 by IPTG induction.The expression products were purified by Ni-NTA affinity chromatography,and the concentration was determinated by BCA method.Detoxi-Gel was used to remove endotoxin contamination in during the protein preparation.After induced by PMA,cells were incubated with various concentrations of recombinant proteins Tp0971.The expression levels of IL-8,IL-1β and IL-6 were detected by ELISA.Cells were pretreated with anti-TLR2 antibody or TLR2 siRNA,or pyrrolidine dithiocarbamate,an inhibitor of NF-κB,for evaluation of the role of TLR2 and NF-κB in the production of cytokines by ELISA.Results: Tp0971 gene were amplified successfully by PCR,and the recombinant plasmids were confirmed by enzyme digestion and sequencing.SDS-PAGE results showed three recombinant proteins were expressed as the soluble with a relative molecular weight of 29 kD.0.5-10 μg/ml of Tp0971 could stimulate macrophages to produce IL-8,IL-1β and IL-6 dose-dependently.After cells were pretreated with siRNA or neutralizing antibody targeting TLR2 or the PDTC,the Tp0971 induced protein expression levels of proinflammatory cytokines were significantly reduced in macrophages.Conclusion: Tp0971 induces macrophages to produce proinflamatory cytokines via TLR2/NF-κB pathway.

Objective To investigate the multi -slice CT angiography(MSCTA)findings and explore the clinical value of cavernous transformation of the portal vein(CTPV).Methods CT and clinical materials of 29 cases CTPV were retrospectively analyzed.Results Portal vein obstruction and surrounding fine dialated portoportal collat-erals were found in all 29 cases,Gastroesophageal varices and abnormal hepatic perfusion signs were detected in 25 patients and 8 cases respectively.Pericholedochal venous plexus and cystic vein were dilated and varicose in 9 cases. Conclusion Multi -slice CT has an important clinical role in CTPV diagnosis and treatment,and it can be used to evaluate the the portal vein obstructed status,the collateral vessels,and the accompanied complications of CTPV.

Objective To investigate whether macrophage-activating lipopeptide-2 ( MALP-2) in-duces the expression of heme oxygenase-1 ( HO-1 ) in THP-1 cells and its possible mechanism .Methods Human monocyte cells THP-1 were cultured in vitro and then were incubated with various concentrations (0, 0.01, 0.1, 1.0 or 5.0 ng/ml) of MALP-2 for 16 h, or were stimulated by 5.0 ng/ml MALP-2 for different length of time (0 h, 4 h, 8 h, 12 h, 16 h or 24 h).The expression of HO-1 at mRNA and protein levels were detected by real-time PCR analysis and Western blot assay .The enzyme activity of HO-1 was detected by colorimetric analysis.THP-1 cells were pre-incubated with 30 μmol/L of SB203580, PD98059 and SP600125 for 30 min and then were cultured with 5.0 ng/ml MALP-2 for 16 h to investigate the role of mito-gen-activated protein kinases (MAPKs) signaling pathway in HO-1 production.After incubating THP-1 cells with 5.0 ng/ml MALP-2 for different periods of time, NF-E2-related factor 2 (Nrf2) protein was detected by Western blot assay to study the effects of Nrf2 pathway on MALP-2-induced HO-1 expression.Nrf2 and HO-1 proteins were measured by Western blot assay after transfecting THP-1 cells (1×106/well) with Nrf2 siRNA at a final concentration of 100 nmol/L.Results MALP-2 enhanced the expression of HO-1 at mRNA and protein levels as well as the enzyme activity of HO-1 in THP-1 cells in a concentration-dependent manner.The expression of HO-1 protein induced by MALP-2 was significantly inhibited by 30 μmol/L MAPKs specific inhibitors ( SB203580 , PD98059 and SP600125 ) .MALP-2 induced Nrf2 translocation at a concentration of 5.0 ng/ml.The expression of Nrf2 and HO-1 proteins were significantly decreased in Nrf 2 siRNA-transfected THP-1 cells.Conclusion MAPKs and Nrf2 signaling pathways were involved in the MALP-2 induced HO-1 expression .

Objective:To observe the molecular mechanism involved in expression of hemeoxygenase -1 (HO-1) induced by a macrophage-activating lipopeptide-2 (MALP-2).Methods:THP-1 cells were cultured in vitro and stimulated by MALP-2 for 12 h, expression of HO-1 was detected by Western blot .TLR2 and TLR6 neutralizing antibodies incubation , dominant negative plasmids transfection were used to assess the functional of TLR 2,6 in mediating HO-1 expression.Phosphorylation of c-Src and Akt were detec-ted by Western blot, and c-Src siRNA and PI3K inhibitor LY294002 were used to investigate the role of c-Src and PI3K in HO-1 ex-pression.Results:MALP-2 induced c-Src phosphorylation , and TLR2 and TLR6 neutralizing antibodies , or their dominant negatively plasmids could abrogate this effect .In addition, siRNA of c-Src could decrease the phosphorylation level of Akt , and the PI3K inhibi-tor could inhibit HO-1 expression.Conclusion: MALP-2 can induce THP-1 cells expression of HO-1 through TLR2,6/c-Src/PI3K pathways .

Adult ; Aged ; Aged, 80 and over ; Carcinoma, Non-Small-Cell Lung ; genetics ; DNA Mutational Analysis ; methods ; DNA, Neoplasm ; genetics ; Female ; Humans ; Lung Neoplasms ; genetics ; Male ; Middle Aged ; Mutation ; Mutation Rate ; Receptor, Epidermal Growth Factor ; genetics

Objective:Cytosolic 5'-nucleotidase (CN-Ⅱ), a nucleotide kinase, exhibits both 5'-nucleotidase and nucleoside phos-photransferase activities. Abnormal CN-Ⅱexpression may be correlated with the resistance of nucleoside analogs in anticancer drugs. This study was designed to investigate CN-Ⅱexpression in human non-small cell lung cancer (NSCLC) tissues and its correlation with the clinicopathological parameters as well as the prognosis of patients treated with gemcitabine. Methods:Immunohistochemistry was used to detect CN-Ⅱexpression in 116 cases of paraffin-embedded NSCLC samples. The correlations with the clinicopathological pa-rameters and the response to gemcitabine chemotherapy of CN-Ⅱwere analyzed through the Chi-square test. Log-rank test was used to determine whether or not CN-Ⅱexpression is correlated with the overall survival of patients. Results:The positive rate of CN-Ⅱwas 53.4% in 116 NSCLC tissues. No significant correlation existed between CN-Ⅱ expression and the clinicopathological parameters. Among the 67 of the 116 patients who received gemcitabine chemotherapy, those with tumor progression (positive rate of 57.6%) exhib-ited higher CN-Ⅱexpression than those with therapeutic efficacy (positive rate of 30.4%, P=0.008) and disease-control chemotherapy (positive rate of 36.7%, P=0.013). The progression-free survival was 4.5 and 5.5 months in the CN-Ⅱ-positive and CN-II-negative groups, respectively, with significant differences (95%CI:4.452 to 6.148, P=0.041). Correspondingly, the overall survival was 9.5 and 11.0 months in the two groups (95%CI:8.667 to 13.333, P=0.282). Conclusion:CN-Ⅱmay be a prognostic factor for gemcitabine chemotherapy in NSCLC patients.