[Objective]To probe into the immune protective effect of Astragalus polysaccharide on mice ,whose genital tract was infected with Chlamydia trachomatis. [Methods]After the murine model of genital tract infected with chlamydia trachomatis was established, we could obtain the minimum effective infective dose. Mice were immuned by different doses(10 mg·kg-1, 20 mg·kg-1, 40 mg·kg-1) of Astragalus polysaccharide(APS) and 0.9%NS , meanwhile the blank group was regarded as the control group. After mice were immuned, we detected serum IgG antibody levels by ELISA method,and took the twice effective dose of chlamydia trachomatis to attack the genital tract after a week. Then the mice genital shedding of epithelial cells were cultured at each interval 2d. After 10 days, we kil ed the mice to calculate spleen(thymus) index, and observed the pathological changes in the reproductive tract of the mice. [Results]Compared with the control group, spleen(thymus) index and serum IgG antibody levels of Astragalus polysaccharide group are significantly higher. The results of vaginal exfoliated cells from Ct training show that, Ct positive rate of Astragalus polysaccharide group is significantly reduced, the number of inclusion bodies is also significantly decreased. And with the increasing concentration of Astragalus polysaccharide, the protective effect is more obvious. The NS group has no significant difference from the control group in al indicators. [Conclusions]Astragalus polysaccharide can induce immune protection on Ct genital tract attacked mice, and in the concentration range, with the increase of the concentration, the protection effect is better.

Objective:To investigate the effect and the related mechanism of c-Myc on the proliferation,invasion and migration ability of malignant melanoma B16-F10 cells. Methods:We detected the expression of PIK3R3 in malignant melanoma and normal tis-sues. Efficiency of gene silencing of c-Myc and PIK3R3 was determined by qPCR and Western blot. We detected the proliferate ability of B16-F10 cells after silencing c-Myc and PIK3R3 using EdU assay. We detected the migration and invasion ability of B16-F10 cells after silencing c-Myc and PIK3R3 using wound healing assays and Transwell matrigel invasion assays. The expression of miR-199a after silencing c-Myc and PIK3R3 using qPCR. The expression of c-Myc and PIK3R3 was detected by qPCR after transfecting miR-199a mimics or miR-199a inhibitor. Dual-luciferase reporter assay system was used to detect miR-199a regulating c-Myc and PIK3R3. Results:Compared normal skin tissue,expression of PIK3R3 was significantly increased in malignant melanoma tissue;after silencing c-Myc and PIK3R3 gene,the proliferation,invasion and metastasis of melanoma cell line B16-F10 were significantly reduced;expression of miR-199a upregulated after silencing c-Myc and PIK3R3 genes, expression of c-Myc and PIK3R3 decreased after transfecting miR-199a mimics, expression of c-Myc and PIK3R3 upregulated after transfecting miR-199a inhibitor, dual luciferase reporter system test results revealed miR-199a can directly regulate c-Myc and PIK3R3 transcription activity. Conclusion: miR199a regulated the expression of c-Myc,then promote proliferation,migration and invasion in malignant melanoma cells.

Objective To understand the current status of advanced schistosomiasis patients, so as to provide the reference for improving the medical care of them in Shanggao County. Methods The data of advanced patients in Shanggao County were collected from the Information Management System for the Advanced Schistosomiasis Chemotherapy and Assistance in Jiangxi Province and a field survey including the epidemiological investigation physical examinations and B ultrasound examinations was performed in 2014. All the data were analyzed statistically and compared with those in 2010. Results Among the 128 ad?vanced schistosomiasis patients the male female ratio was 2.46 1 the average age was 68.02±6.19 years and the patients old?er than 65 years contributed to 64.84%for the all. The proportions of clinically types of ascites splenomegaly multiple granulo?ma in the colon dwarf general and haemorrhage were 57.81% 12.50% 2.34% 0 26.57% and 0.78% respectively. The ultrasound examinations revealed the average diameter of the main trunk of portal vein was 12.70 ± 1.91mm in 2014 which was significantly broader than that of 12.05 ± 0.34mm in 2010 P < 0.01 . Conclusions The advanced schistosomiasis patents in Shanggao County decreases with years and shows an aging trend. Some advanced schistosomiasis patients are worse therefore the chemotherapy and salvation work still should be strengthened.

Objectives To construct two retroviral vectors, one containing human interleukin-1 recep-tor antagonist (hIL-1Ra) gene and the other containing human interleukin-10 (hIL-10) gene and to transfect rabbit synoviocytes in vitro and detect the expression level of target genes. Methods RNA from human peripheral blood mononuclear cells were extracted and target genes were amplified by RT-PCR. The target genes were cloned into retroviral vector pLXSN, which was then transducted into GP2-293 cells to produce recombinant retrovirus. Rabbit synoviocytes were transfected and the expression of target genes was detected by RT-PCR, immunohistochemistry and western-blot. Results The retroviral vector containing hIL-1Ra gene or hIL-10 gene was constructed successfully. The hIL-1Ra gene and hIL-10 gene were transduced respectively into rabbit synoviocytes in vitro. The mRNA level of both genes reached peak in 5 days. In positive cell clones, the protein level of hIL-1Ra reached peak within 30 days and maintained at least 60 days; the protein level of hIL-10 maintained at least 40 days. Conclusion The hIL-1Ra gene and hIL-10 gene can be transduced successfully into rabbit synoviocytes by recombinant retrovirus.

Objective:To investigated the activity inhibition and inhibitory type of polyphenol oxidase (PPO) induced by galangin and the interaction mechanism of galangin with polyphenol oxidase was preliminarily indicated,and prove the related mechanism of galangin on proliferation of on human melanoma A375 cells.Methods: The activity inhibition and inhibitory type of PPO induced by galangin were investigated by spectrophotometric method,and interation mechanism of galangin with PPO was preliminarily indicated by fluorescence quenching and molecular docking,and chelating copper ions with the inhibitory mechanism of galangin on polyphenol oxidase was measured.Results: Galangin was a competitive inhibitor,the IC50 and Ki on PPO were obtained to be (47.86±3.33) and (24.83±1.45)μmol/L,respectively.Fluorescence spectrum indicated the fluorescence of PPO was quenched effectively by galangin and the binding constant Ka was obtained to be (4.67±0.43)×104 L/mol.Chelating copper ions and molecular simulation further showed that galangin was combined with active center of copper ions,and formed hydrogen bonds with catalytic site His259.Luteolin could induce the apoptosis of A375 cells significantly,and the tyrosinase activity and melanin synthesis were decreased.Conclusion: Galangin as a competitive polyphenol oxidase inhibitor and reduced the activity of polyphenol oxidase.which provides the theoretical basis for the clinical anti skin cancer.

Imidazoline-1 receptors (I1R) are now generally accepted as novel receptors,and IRAS(imidazoline receptor antisera selected protein) is I1R candidate protein.The review summarized the definition,characterization,distribution and signal transduction mechanism of I1R and IRAS,and then compared I1R with IRAS from the above aspects

Objective The anterior dentition defects of geriatric patients were restored with modified fixed Maryland Bridge.The clinical design,tooth preparation,fabrication of prosthesis and clinical indication were summarized.Method 24 cases of geriatric patients with anterior dentition defects were restored with modified fixed Maryland Bridge.All selected cases were accompanied with different degree of loosening of neighboring teeth,gingival atrophy and exposure of root.The dentition defects were successfully restored and followed up for 3 to 5 years.Results The overall success rate was 87.5%.Three patients had the prosthesis loosened and re-bonding was necessary.No loosening was found in other patients.There was no swelling or inflammation of gingival underneath the prosthesis.All patients were quite satisfactory with the function and appearance of the prosthesis.Dental calculus was observed in 12 patients,and 2 patients complained of a feeling of foreign body on the side of tongue.Conclusion The modified fixed Maryland Bridge,when used in restoring the dentition defect of geriatric patients,showed the advantages of less tooth reduction,perfect esthetic effect,good fixation of loosening teeth as well as restoration of missing teeth with its splint wings.However,the long-term effect of this technique needs to be further observed.

This study is to develop a sensitive method by using reversed-phase high performance liquid chromatography coupled with UV detector (HPLC-UV) to simultaneously determine four bioactive compounds, iriflophenone 3-C-beta-D-glucoside, iriflophenone 3,5-C-beta-D-diglucoside, mangiferin, and iriflophenone 2-O-alpha-L-rhamnoside in the leaves of Aquilaria sinensis. An Agilent Zorbax SB-C, column (4, 6 mm x 250 mm, 5 microm) was used, and the gradient elution was performed with mobile phase of 0.1% aqueous phosphoric acid and acetonitrile at a flow rate of 1 mL x min(-1). The detection wavelength was 280 nm, and the column temperature was 25 degrees C. The four marker compounds were well separated with good linearity (R2 > 0.9990), precision, stability and repeatabili y. The-recovery rates were in the range of 98.80%-101.39%. For 15 branch of the leaves, the contents of iriflophenone 3-C-beta-D-gluoside, iriflophenone 3,5-C-beta-D-diglucoside, mangiferin, and iriflophenone 2-O-alpha-L-rhamnoside were between 0.41-14.48, 0.72-3.85, 4.30-29.07, 0.24-5.06 mg, respectivley. This method is precise, accurate and reliable, which provides an efficient way for the quality control of the leaves of A. sinensis. This will promote the comprehensive usage of this plant.
Benzophenones ; analysis ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; Plant Leaves ; chemistry ; Spectrophotometry, Ultraviolet ; methods ; Thymelaeaceae ; chemistry ; Xanthones ; analysis

Objective To investigate the expression of MTSS1 in cholangiocarcinoma tissue and its relationship with the prognosis of patients.Methods The specimens of bile duct of 49 patients with hilar cholangiocarcinoma who received surgical excision at the Eastern Hepatobiliary Surgery Hospital from January 2003 to December 2005 were collected.Tissue microarrays of the 49 samples of hilar cholangiocarcinomas and the 10samples of adjancent normal bile duct epithelial tissue were constructed.The expression of MTSS1 was detected by the immunohistochemical staining.The pcDNA3.1-MTSS1 was transferred into the RBE cells and the abilities of proliferation of REB cells were measured by MTT assay.The patients were followed up via out-patient examination and telephone till May 2012.The measurement data were analyzed using the t test,and the count data were analyzed using the chi-square test,the survival curve was drawn by the Kaplan-Meier method,the survival was analyzed using the Log-rank test,and multivariate analysis was done using the COX regression model.Results The results of immunohistochemical staining showed that the expression rate of MTSS1 was 10/10 in the adjacent normal epithelial tissue of bile duct,while 59.2％ (29/49) in the cholangiocarcinoma tissues.The proliferative rate of cholangiocarcinoma cells transfected with MTSS1 was 1.55 ±0.05,which was significantly lower than 2.32 ±0.08 of cholangiocarcinoma cells without transfection of MTSS1 (t =4.454,P ＜ 0.05).Gender,age,TNM stage,T stage,differentiation,neural invasion and diameter of tumor did not influence the expression of MTSS1 (x2=0.211,3.471,0.507,0.507,0.368,0.882,0.660,P ＜ 0.05),while lymph node metastasis influenced the expression of MTSS1 (x2=10.436,P ＜ 0.05).All the patients were followed up for 1-59 months,and the median time for follow-up was 16 months.The median tumor-free survival time was 17.9 months in patients with positive expression of MTSSI,and 11.3 months of patients with negative expression of MTSS1,with no significant difference (Log-rank value =3.707,P ＞ 0.05).The median survival time was 34.9 months in patients with positive expression of MTSS1,which was significantly longer than 18.7 months of patients with negative expression of MTSS1 (Log-rank value =5.671,P ＜0.05).Multivariate analysis showed that MTSS1 was not the independent risk factor influencing the prognosis of patients (x2 =0.406,P ＞ 0.05).Conclusions The expression of MTSS1 is decreased in cholangiocarcinoma tissue,which negatively correlates with lymph node metastasis.MTSS1 could be used as a biomarker in predicting the prognosis of patients with cholangiocarcinoma.

Objective To explore the effect of the island flap application on repairing large scale defects on the face.Methods Based on the defect size,shape and location,preauricula narrow stem side geny-neck flap,submental island flap,angular artery flap,eyelid musculus orbicularis flap and nasolabial groove island flap were used to repair the large scale defects of the face in a one-stage operation.Results All flaps survived well without any obvious complications.35 patients were followed up for 1 to 36 months.Repaired tissues were well matched with the surrounding tissue.Resulting facial contour and appearance were good,and cosmetic results overall were satisfactory.Conclusion The application of island flaps to repair the large scale defects on the face in a one-stage operation is a better method that can achieve good contour and satisfactory cosmetic results.