Objective To study the Dai medicine Yapa Tang inhibition on mice Lewis lung carcinoma growth and metastasis,and to explore the impact of the drug on mice immune function. Methods Subcutaneous injection LLC(Lewis lung carcinoma cells)in C57BL/6 mice’s right armpit was to establish rat models. 60 successful tumor-bearing mice were selected and thenafter inoculating LLC were randomly divided into 6 groups, namely the control group,Yapa Tang low-dose group,Yapa Tang mid-dose group, Yapa Tang high-dose group,cyclophosphamide group and Yapa Tang mid-dose combining cyclophosphamide group.Then,after inoculated 3 days,each group was administrated with medicines.The first four groups wereintragastricly administrated with 0.9% saline, low-dose, mid-dose and high-dose Yapa Tang with0.4ml respectively;the cyclophosphamide group was administrated with cyclophosphamide,and Yapa Tang mid-dose combining cyclophosphamide group was administrated with middle dose Yapa Tang and cyclophosphamide. After 21days, blood was taken from eyeballs. Tumor tissue, spleen, thymus were gotten and weighted to calculate inhibitory rate,spleen and thymus index, enzyme-linked immunosorbent assay (Elisa) was adopted to detect Interleukin-2(IL-2), Interleukin-10(IL-10)and their contents. Results The tumor weight of Yapa Tang high-dose group, cyclophosphamide group and Yapa Tang mid-dose combining cyclophosphamide group was 3.46±0.39, 2.39±1.04 and 2.30±0.76 respectively,all lower than the control group, which was 5.21±0.50, showing significant difference(P<0.05), with the inhibition rate were33.69%, 54.12%, 56.00%. The thymus and spleen index of Yapa Tang low-dose group, middle-dose group and high-dose group was2.16±0.69, 2.24± 0.76, 2.23 ± 0.63, 16.82 ± 3.14, 15.82 ± 1.72, 17.08 ± 3.65, significantly higher than that of the control group,which was1.94±0.6, 15.17±3.53. The IL-2, IL-10 level of control group were(883.54±181.49)ng/L, (1 106.86±343.79)ng/L. Yapa Tanggroupsshowed an increase in IL-2(1 732.29±100.52)ng/L, (1 813.33± 168.32)ng/L, (2 275.63 ± 394.76)ng/L and the decrease in level of IL-10, respectively were(834.02 ± 271.97)ng/L, (636.83±270.56)ng/L, (682.08±147.85)ng/L, with significant difference. Conclusion Yapa Tang can inhibit lewis lung cancer grow and reduce the number of lung metastases, regulate immune cytokines IL-2 and IL-10, and promote the immunity of tumor-bearing mice.

Objective To discuss the feasibility of Monte Carlo N-particle transport code(MCNP)simulated calculation.Methods The calculation in water phantom was contrasted with the practical measurements and the reported values using the percent depth dose(PDD)curve and normal peak scatter factor.Results There Was no significant difference between calculated and measured results in the 10 cm×10 cm field(t＝-0.41,P>0.05),however,there were significant differences in the 5 cm×5 cm field(t=7.2,P<0.05)and in the 12 cm×12 cm field(t=-4.6,P<0.05).There was no significant difierence between the calculated results and the reported values(t=-1.91,P>0.05).In the same radiation field,the PDD decreased as the depth increased,but increased as the size of the radiation field increased at the same depth.PDD and normal peak scatter factor were both important parameters for calculation of prescribed dose.Conclusions It is possible to establish a set of accurate and comprehensive percent depth doses and normal peak scatter factor parameters so as to provide the basis of clinical use, quality assurance and quality control for radiotherapy.

ObjectiveTo study the expressions of Ki-67 and p53 in the surface cells and polygonal cells in pulmonary sclerosing hemangioma(PSH)and investigate the relation of cell proliferation index and biological behaviour of the tumor.MethodsDouble-staining immunohistochemistry was used to detect the expressions of Ki-67 and CK8/18 protein. Double immunofluorescence staining was used to detect the expressions of p53 and AE1/AE3 protein. ResultsThe positive signal of AE1/AE3 and CK8/18 were localized in cytomembrane of surface cells. The positive signal of Ki-67 and p53 were localized in cell nucleus of the two kinds of cells.The positive rate of Ki-67 was under 1％ in surface cells and 1％-10 ％ in polygonal cells. p53 protein was mainly expressed in polygonal cells (6/9, 33.3 ％) and only exsited in seldom surface cells.ConclusionThere are differences on cellular morphous and immunophenotype between the surface cells and polygonal cells.The proliferation index and gene mutation are all predominant in polygonal cells than in surface cells. The biological behaviour of PSH maybe mainly be decided by the polygonal cells.

Objective To analyze the management of clinical pathways ( CP) in China. Methods Cross-sectional questionnaire surveys of 51 public hospitals with CPs in place in Shanghai, Hubei province and Gansu province were conducted from March to May of 2015. Results Among the 51 public hospitals with CPs, 48 ( 94. 1%) of them organized training on CPs, 48 ( 94. 1%) of them monitored CPs′implementation, and 40 (78. 4%) applied incentives for CPs′ implementation. But there were some issues and difficulties encountered in CPs′ implementation. Conclusions Comprehensive measures are necessary to improve the management of CPs at public hospitals of China.

Objective To analyze the implementation of clinical pathways ( CP) at public hospitals at different levels and in different regions in China. Methods The status of CPs′ implementation at 54 public hospitals in Shanghai, Hubei province and Gansu province was surveyed by questionnaires from March to May of 2015. Results 51 (94. 4%) of the surveyed public hospitals put in place clinical pathway(s), where the average CPs implemented were 45 and the average percentage of the cases using CPs was 52. 7%. There were great variations among these hospitals. In addition, the common diseases with definite diagnostic and treatment options were found with the highest implementation rates of CPs at such hospitals. Conclusions CPs are implemented widely at public hospitals of China, yet enhanced implementation strategies are expected to further CPs′adoption.

ObjectiveTo investigate the inhibitory effect of lentivirusly-mediated ObR-siRNA on transplanted MCF-7 human breast cancer cells by intratumoral injection.MethodsA model of subcutaneous implanted tumor was generated through injecting MCF-7 human breast cancer cells into the nude mice.Thirty established mice with MCF-7 breast cancer cells xenograft were divided into 3 groups randomly,and mice in the experimental group were intratumorally injected with ObR-siRNA lentivirus,while the negative control group and blank control group mice were injected with the same dose of negative lentivirus and normal saline.All mice were subcutaneously injected with recombinant human leptin around the tumor site once a day.Tumor size was blindly measured every other day and the mRNA expression and protein expression levels of ObR in each group were determined.ResultsKnockdown of ObR-treated xenografted nude mice with a high leptin microenvironment was successfully established.Local injection of ObR-siRNA lentivirus significantly suppressed the established tumor growth in nude mice(P ＜ 0.01,P ＜0.01 ).Real time-PCR and Western blotting showed that the mRNA and protein expression of ObR was decreased in the ObR-siRNA lentivirus group( P ＜ 0.01,P ＜ 0.01 ).ConclusionsIntratumoral injection of recomhinant ObR-siRNA lentivirus inhibits the growth of MCF-7 cells xenografts in the nude mice,suggesting that ObR might represent a therapeutic target in the genotherapies of human breast cancer.

Objective To study endothelial nitric oxide synthase (eNOS) gene transfecting endothelial cells (ECs). Methods eNOS gene was transfected into the steady ECs system by cationic liposomal transduction and check the transfection effect by RT-PCR and immunohistochemistry assay. To test the concentrations of NOS, nitric oxide (NO) and von willebrand factor (vWF) in culture media by colorimetry and ELISA, respectively,and transfected EC function was observed. Results The effect of transfection was satisfactory with RT-PCR products electrophoresis, sequence and immunohistochemistry. The concentrations of NOS and NO in transfected EC culture media increased with time (P

OBJECTIVETo compare the efficacy of bicyclol tablets on patients infected with hepatitis B virus between genotype B and C.

METHODS70 patients with chronic viral hepatitis B were selected. The patients divide into two groups: HBV genotypes B (26 cases) and HBV genotypes C (other 44 cases). All patients received bicyclol tablets orally 150 mg daily (50mg, tid, po) for 24 weeks. The efficacy were observed after 12 weeks and 24 weeks.

RESULTSAfter treatment for 24 weeks, the serum aminotransferase were decreased obviously, and HBV DNA levels turn to be negative with 19.2 percent (genotype B group) and 15.9 percent (genotype C group), respectively. The difference was not statistically significant between HBV genotype B and C.

CONCLUSIONBicyclol not only has hepatoprotective activity but also inhibited virus replication in patients infected with HBV. The difference of the response to bicyclol therapy between HBV genotypes B and C was not statistically significant.

Adolescent ; Adult ; Biphenyl Compounds ; therapeutic use ; Female ; Genotype ; Hepatitis B virus ; classification ; Hepatitis B, Chronic ; drug therapy ; virology ; Humans ; Male ; Middle Aged

OBJECTIVETo investigate changes in biologic properties of non-small-cell lung cancer (NSCLC) A549 cells whose EGF receptor (EGFR) expression was suppressed by short interference RNA (siRNA).

METHODSA549 cells were transfected with synthetic EGFR sequence-specific siRNA by Lipofectamine. EGFR expression was examined by Western blot and flow cytometry. The biological features of the transfected A549 cells were assessed by cell cycle analysis, colony formation and chemosensitivity assay.

RESULTSSequence-specific siRNAs targeting EGFR significantly down-regulated its expression in A549 cells. Cell growth and colony formation were inhibited by 85.0% and 63.3%, respectively, as compared to the non-sequence-specific siRNA treated cells. Decreased EGFR expression was accompanied by 12.7% increase in A549 cells in G(0)-G(1) phase and 6.6% decrease in S-phase. The EGFR sequence-specific siRNA transfected A549 cells were much more sensitive to the cytotoxic effect of cisplatin with a 77.2% decrease in IC(50) compared to the non-sequence-specific iRNA transfected A540 cells.

CONCLUSIONDown regulation of EGFR expression of NSCLC by sequence-specific siRNA may be considered as an additional option in the treatment of EGFR over-expressing cancers, including NSCLC.

Antineoplastic Agents ; administration & dosage ; pharmacology ; Carcinoma, Non-Small-Cell Lung ; metabolism ; pathology ; Cell Cycle ; Cell Line, Tumor ; Cell Proliferation ; Cell Survival ; drug effects ; Cisplatin ; administration & dosage ; pharmacology ; Humans ; Inhibitory Concentration 50 ; Lung Neoplasms ; metabolism ; pathology ; RNA Interference ; RNA, Double-Stranded ; genetics ; RNA, Small Interfering ; genetics ; Receptor, Epidermal Growth Factor ; genetics ; metabolism ; Transfection

To analyze the molecular mechanisms of cross-host transmission of the Aleutian mink disease vi rus (ADV), the hypervariable region fragment of the VP2 gene of the ADV in Jilin Province (China) was amplified. Sequencing analyses showed diversity at residue 174 by comparison with other VP2 genes in GenBank. The phylogenetic tree indicated that the ADV-JL strain had a close relationship with the highly pathogenic strain from Denmark: ADV-K. Results implied that residue 174 may be associated with ADV infectivity.
Aleutian Mink Disease ; virology ; Aleutian Mink Disease Virus ; chemistry ; classification ; genetics ; isolation & purification ; Amino Acid Sequence ; Animals ; Capsid Proteins ; chemistry ; genetics ; China ; Mink ; Molecular Sequence Data ; Phylogeny ; Sequence Alignment ; Sequence Analysis