Objective To observe the expression of HBV-DNA and whether there were copy of HBV in the umbilical cord tissues of the died fetus delivered from puerpera with hepatitis virus B. Methods 40 cases such died fetus were collected by routine autopsy to obtain umbilical cord tissues.And using in situ molecular hybridization technique detected HBV-DNA. Results For the umbilical cord tissues, there were 40%(16/40) cases detected out HBV-DNA.HBV-DNA mainly localization in the surface of the umbilical cord vessel and in the cytoplasma of the cord vessel's endothelial cells. They were not in the cord vessel's endothelial cells nuclei. Conclusions There were HBV replication in the umbilical cord tissues of the died fetus. But the expression of HBV-DNA in the umbilical cord tissues of the died fetus is not related with the HBV replication status in the pregnant woman veins.

The aim of the study is to provide an ideal animal model for the research in the field of molecular pathogenesis and experimental treatment of gastric carcinoma. By the microsurgical technique, 47 human gastric carcinoma specimens were orthotopically transplanted into the gastric mucosal layer in nude mice. Its oncogenicity, invasion, metastasis and morphologic characteristics were observed and the expression of oncogene P53, c erbB 2 and raSP 21 were assessed. Three models of human gastric carcinoma, were adenocarcinoma, squamous cell carcinoma, squamous adenocarcinoma were screened from 47 cases of patients. The oncogene proteins were positively expressed and related to the growth pattern, depth of invasion and lymph node metastasis. Its ultrastructural characteristic was similar to the human original gastric cancer cells. These models are suitable and helpful for the research of the molecular pathogenesis, invasion, metastasis and experimental treatment of gastric carcinoma.

Objective This study is to identify the presence of superoxide anion-generating system in human lens epithelial cells using arachidonic acid (AA) as the stimulator.Design Experimental study.Participants Human lens epithelial cells B3 (HLE B3). Methods Confluent human lens epithelial cells (HLE B3) were subjected to stimulation by AA and its derivatives.The generation of su- peroxide anion was quantified with a luminometer (LumiStar BMG) immediately upon AA and its derivatives addition.Cells preloaded with superoxide dismutase (SOD) or mannitol were used as negative controls and cells mixed with 3% ethanol (solvent for AA) were used as baseline.Cells were preloaded with inhibitors 30 minutes before luminometer measurement.A time-and concentration-depen- dent study on the AA-stimulated activation of mitogen-activated protein kinase (MAPK) was carried out using western blot analysis. Main Outcome Measures Superoxide generation,phosphorylation of MAPK.Results AA at dosage of 30-150 mM proportionally in- duced luminescence in HLE B3 cells,but was ineffective in cells preloaded with SOD or mannitol.DPI,a non-specific NADPH oxidase inhibitor eliminated AA-induced superoxide anion generation partially.Leinoleic acid,stearic acid,eicosa-11Z,14Z,17Z-trienoic acid (20:3) and eicosa-11Z,14Z-dienoic acid (20:2) were ineffective.The generation of superoxide anion was not contributed by cyclooxyge- nase or the cytochrome p450 pathway since indomethacin (inhibitor for cyclooxygenase) or ketoconazole (inhibitor for cytochrome p450) could not eradicate the stimulatory effect of AA.While CDC,a specific inhibitor for lipoxygenase could eliminate superoxide generation partially.The specific inhibitor for 5-lipoxygenase AA861 completely blocked the generation of superoxide anion.Western blot analysis of the cell lysate showed that AA at the concentrations of 30-150 mM progressively activated ERK and JNK.They were transiently ac- tivated between 2.5-30 minutes.The activations of ERK and JNK were dose-dependent and time-dependent.Conclusions Inhibition of superioxide anion generation may be a new approach to block lens epithelial cell proliferation and post-capsule opacification.

A female patient with hair cell leukaemia was treated with human leukocyte interferon at a daily dose of 1.5 ? 104 for 27 days. The bone marrow cells were studied with electron microsepy. The follow up investigation of the bone marrow hair cells revealed that there were widening of the perinuclear space, disintegration of nuclear membrane, vaeuolization as well as expansion of the rough endoplasmic retieulum

Adolescent ; Adult ; Cat-Scratch Disease ; diagnosis ; therapy ; Child ; Child, Preschool ; Female ; Humans ; Lymphadenitis ; diagnosis ; etiology ; therapy ; Male ; Middle Aged ; Young Adult

0.05).At the eighth week of training and after ceasing the cognitive training for 4 weeks the NCSE scores and the FIM scores were improved in both groups,espeeially in the cognitive training group(P

Objective To explore the prevalence of sialorrhea and its clinical correlation with dysphagia in Chinese patients with Parkinson′s disease ( PD ).Methods One hundred and sixteen consecutive patients with a clinical diagnosis of PD were selected.Demographic data included sex , age, years of education, age at onset of PD, clinical genotype, disease duration, treatment, Hoehn and Yahr (H&Y) stage.Sialorrhea was assessed using the Unified Parkinson′s Disease Rating Scale (UPDRS) Ⅱitem number 6.All patients were studied with videofluoroscopic study of swallowing ( VFSS).Results The prevalence rate of sialorrhea in PD was 59.5% (69/116, 95% CI 50.6%-68.4%).Males were more likely to develop sialorrhea than females (47/70 vs 22/46,χ2 =4.298, P=0.038).PD patients′sialorrhea correlated with oral dysphagia:with food leaking from the mouth ( liquid r=0.229, P=0.014; juice r=0.197, P=0.034;pudding viscosities r=0.231, P=0.013;solid food r=0.255, P=0.006), with more than 1 ml of oral food residues (liquid r=0.319, P<0.01;solid food r=0.185, P=0.047), with delay in food transfer to the root of the tongue (liquid r=0.279, P=0.002; juice r=0.209, P=0.024), and delayed swallow transfer ( pudding viscosities r=0.257, P=0.005).Sialorrhea score was not related to H&Y stage, clinical course and levodopa equivalent doses (LED).The prevalence rate of dysphagia in PD was 87.1%(95% CI 81.0% -93.2%).Liquid was more likely to cause pharyngeal dysphagia ( P=0.03).With the increase in H&Y stage , so did the oral and pharyngeal stages of dysphagia.Late and mid-course was more likely to develop oral and pharyngeal dysphagia than those with early clinical course .Conclusions Sialorrhea and dysphagia are common non-motor symptoms in PD patients.Sialorrhea is more prevalent in males and correlates with oral phase of dysphagia.Liquid is more likely to cause pharyngeal dysphagia.With increase in H&Y stage , so did oral and pharyngeal dysphagia.Even though late clinical course is more likely to develop oral and pharyngeal dysphagia than early clinical course , the comparison between late and intermediate clinical courses does not reach statistical significance .

BACKGROUND: Mortality related to cardiopulmonary bypass can be lowered by intra-operative monitoring system.Monitoring liquid level and pressure is extremely indispensable for examination of cardiopulmonary bypass(CPB).OBJECTIVE: To design a CPB safety system including an arterial line pressure monitor and low-level sensor,and to evaluate its safety and effects in clinical settings.METHODS: The safety system was composed of pressure transducer,photoelectric transmitter,photoelectric detector,core controller,and liquid crystal display.The principles of reflection and refraction were applied to the design of level sensor.The pressure measurements were converted into electronic signals and processed.According to two principles above-mentioned,fluid level detector and pressure monitor were designed.Thirty patients with the age of 1-75 years receiving cardiac surgery with cardiopulmonary bypass were enrolled.The arterial line pressure at different pump flows was measured and the alarm function of the level sensor was also validated.RESULTS AND CONCLUSION: Cardiopulmonary bypass arterial line pressure increased with the pump flow.Arterial line pressure detected by HZ-01-A safety system also increased with the pump flow increasing,which was highly related to the pump pressure.HZ-01-A safety system could alarm when the arterial line pressure and reservoir level exceeded the pre-determined thresholds.HZ-01-A safety system could be safely and effectively applied to clinical cardiopulmonary bypass and improve bypass safety by accurately detecting the pressure and reservoir level.

OBJECTIVE:To systematic review the relationship between CYP4F2 gene polymorphism and warfarin maintenance dose in Chinese population,and to provide evidence-based reference for clinical treatment. METHODS:Retrieved from Cochrane library,PubMed,EMBase,CJFD,VIP and Wanfang database,studies about the relationship between CYP4F2 gene polymorphism and warfarin maintenance dose in Chinese population were collected,and Meta-analysis was performed by using Rev Man 5.0 statis-tics software. RESULTS:A total of 13 studies were included,involving 2 958 patients. The type of gene was type TT,type CT and type CC. Results of Meta-analysis showed the relationship between 3 gene polymorphism and warfarin maintenance dose was type TT>type CT>type CC,and there were significant differences among groups. CONCLUSIONS:CYP4F2 gene polymorphism in Chinese population has significant correlation with warfarin maintenance dose. However,due to the limit of methodological quali-ty,large-scale and high quality studies are required for further validation of the conclusions.

Objective To observe the effect of angiotensin-converting enzyme inhibitor(ACEI) on insulin sensiti-(vity) in dogs with acute myocardial infarction(AMI) after thrombolytic treatment. Methods Twenty dogs were made as AMI models and then underwent thrombolytic treatment.The dogs were divided into the control group(n=10) and the captopril group(n=10) randomly.Insulin,plasma glucose,erythrocyte insulin receptor(EIR),nitrogen(NO) and angiotensin Ⅱ(AT Ⅱ) were(detected) and insulin sensitivity index(ISI) was calculated.The changes of these values in the two groups were contrasted. Results After reperfusion for 120 min,in the control group,ISI and AT Ⅱgot much more rise while EIR and NO fell much more(P