Objective:To study the regulatory mechanism of Wnt/?-Catenin passthway-influenced apoptosis of human gastric cancer line SGC-7901 by detecting the expression of ?-Catenin mRNA,Bcl-2mRNA,Caspase-8mRNA and Caspase-3mRNA.Methods:(1) Expressions of ?-Catenin,Bcl-2,Caspase-8 and Caspase-3mRNAs in groups with or without indomethacin induction were detected by RT-PCR.(2) Methyl thiazolyl tetrazolium(MTT) assay was used to measure the anticancer activity of indomethacin.Results:(1)As compared with groups without indomethacin induction,expression of ?-Catenin mRNA and Bcl-2 mRNA were lower,however,increased expression of Caspase-8 and Caspase-3mRNA were found in SGC-7901 cells after treatment with indomethacin.(2) Indomethacin of 50 ?mol/L at 24 h couldn't induce apoptosis of gastric cancer cells.Indomethacin of 50?mol/L at 48 and 72 h and of 100?mol/L and 200?mol/L at 24、48 and 72 h could induce apoptosis of gastric cancer cells in a dose-and time-dependent manner.Conclusion:Gastric cancer cells may be caused by apoptosis inbalance through Wnt/?-Catenin passthway,which activates expression of proto-oncogene Bcl-2 and inhibites expressions of Caspase-8 and Caspase-3.

By reviewing experiment teaching,the primal problems and solutions of practical training in preventive medicine specialty are explored in order to provide some beneficial reference and help for experimental teaching.

Objective:To observe the effect of postoperative urinary retention treated with tuina therapy.Methods:Tuina therapy was applied on 37 cases of postoperative urinary retention;Qihai(CV 6),Guanyuan(CV 4),Zhongji(CV 3)and bilateral Sanyinjiao(SP 6)were selected.Results:Thirty-six cases were cured and 1 case was not surveyed after 1 to 3 treatments.Conclusion:Point tuina is an effective method in treating postoperative urinary retention.

Mitochondrial oxidative stress has been recognized as a preliminary and critical factor that aggravates the pathological cascade of Alzheimer's disease, which induces the production of β-amyloid protein, upregulates the expression of phosphorylated tau protein and triggers oxidative damage to lipids, proteins and mitochondrial deoxyribonucleic acid. Central neurons are more vulnerable to oxidative stress than non-neuronal cells due to their high oxygen demand, abundant unsaturated fatty acids and antioxidant enzymes deficiency. On this account, this review introduces the causes of mitochondrial oxidative stress, and analyzes the important role of mitochondrial oxidative stress in the pathogenesis of Alzheimer's disease. Meanwhile, the review focuses on the design and intervention strategies of drug delivery systems targeting mitochondrial oxidative stress in neurons, aiming to provide new ideas for the prevention and treatment of Alzheimer's disease.

Objective:To investigate the impact of conditioned medium of decidual stromal cell culture(DSCM) on proliferation,apoptosis and invasion of trophoblast cells.Methods:lsolution,culturing and indentifying the purity of decidual stromal cells from healthy women of early pregnancy to prepare different concentrations of DSCM (5％,20％,50％ and 100％);Proliferation was evaluated by MTT assay;Cell apoptosis was examined by flow cytometry using annexin V-FITC/PI staining;Cell invasion was assayed using a Transwell chamber;RT-PCR and gelatin zymography were used to explore the mechanism of cell invasion.Results:Using this method we obtained a purity over 90％ of decidual stromal cells.With the concentration of DSCM increased(5％,20％,50％,100％),the OD value of the MTT assay has elevated and the rate of apoptosis declined,the infiltrating cell increased as well (P ＜ 0.05);Compared with control group,DSCM treatment led to a significant increase in the mRNA and protein expression of MMP-2/9(P ＜0.05).Conclusions:Decidual microenviroment may promote trophoblast proliferation and inhibite its apoptosis besides could enhance its ability of invasion by altering the expression of MMP-2 and MMP-9.

Apgar Score ; Autopsy ; Fatal Outcome ; Heart Neoplasms ; diagnosis ; diagnostic imaging ; pathology ; Heart Ventricles ; diagnostic imaging ; Humans ; Infant, Newborn ; Male ; Myxoma ; complications ; diagnosis ; diagnostic imaging ; pathology ; Rare Diseases ; Ultrasonography

The basement membrane (BM) is crucial in regulating the physical and biological activities of esophageal epithelial cells which attach to the underlying BM. In order to simulate the natural construction of BM, we prepared the fibrous scaffolds using biodegradable polylactide (PLA) and silk fibroin (SF) as the materials via electrospinning technology. BM's proteins containing collagen (IV), laminin, entactin and proteoglycan were extracted from porcine esophagus and coated on the eletrospun fibers. Morphology, mechanical strength, biodegradability and cytocompatibility of the coated and uncoated scaffolds were tested and evaluated using scanning electron micrography, mechanical test system, immunofluorescence assay and western blotting with CK14 as the primary antibody. The fibrous scaffold PLA or PLA/SF, generated from the present protocol had good formation and mechanical and biodegradable properties. After coating with BM's proteins, the scaffold could enhance the growth and differentiation of esophageal epithelial cells, which would contribute to remodel and regenerate the tissue engineered epithelium and further contribute to engineer the whole esophagus in future.
Absorbable Implants ; Basement Membrane ; Biocompatible Materials ; chemistry ; Epithelium ; Esophagus ; physiology ; Fibroins ; chemistry ; Humans ; Nanostructures ; chemistry ; Polyesters ; chemistry ; Regeneration ; physiology ; Tissue Engineering ; methods ; Tissue Scaffolds ; chemistry

Online Mendelian Inheritance in Man (OMIM) is a knowledge source and data base for human genetic diseases and related genes. Each OMIM entry includes clinical synopsis, linkage analysis for candidate genes, chromosomal localization and animal models, which has become an authoritative source of information for the study of the relationship between genes and diseases. As overlap of disease symptoms may reflect interactions at the molecular level, comparison of phenotypic similarity may indicate candidate genes and help to discover functional connections between genes and proteins. However, the OMIM has used free text to describe disease phenotypes, which does not suit computer analysis. Standardization of OMIM data therefore has important implications for large-scale comparison of disease phenotypes and prediction of phenotype-genotype correlations. Recently, standard medical language systems, term frequency-inverse document frequency and the law of cosines for document classification have been introduced for mining of OMIM data. Combined with Gene Ontology and various comparison methods, this has achieved substantial successes. In this article, we have reviewed various methods for standardization and similarity comparison of OMIM data. We also predicted the trend for research in this direction.
Databases, Genetic ; Humans ; Phenotype

The paper mainly introuduces a kind of advanced portable firstaid kit,which is used in evacuation corridor by doctors,hygeians and nurses.It has such fuctions as hemostasis,bandaging,fixing,ventilation-improved respiration and contershock.With reasonable internal structure,it is very convenient to be quickly opened,closed and supplied.With the optimized allocation of ambulance drugs and materials,it meets the effective and modularization needs of field medical equipment.

0.05).The average rate of three times NI prevalence surveys was 5.23% and that of NI prospective overall(monitoring) method in the same months was 6.60%,the statistical difference between them was found(P