Objective To analyze the changes and characteristics of cancer incidence and mortality among Jiaxing residents in the past 6 years,and to provide evidence for the prevention and control of cancer incidence and mortality.Methods Registered malignant tumor data from the Zhejiang Chronic Disease Information Monitoring and Management System were collected and analyzed based on the International Statistical Classification of Diseases (ICD-10).The statistical indexes used for analyses included crude incidence,standardized incidence,crude ortality,standardized mortality,potential years of life lost (PYLL),average years of life lost (AYLL),rate of potential years of life (PYLL‰) and so on.Results From 2010 to 2015,the crude incidence,the standardized incidence,the crude mortality,and the standardized mortality were 342.52/105,240.89/105,194.71/105 and 126.27/105,respectively.The crude incidence and mortality for males were both higher than those for females(378.44/105 vs.307.49/105,x2=763.06,P＜0.01;255.31/105vs.135.62/105,x2-3 814.11,P＜0.01).The PYLL,AYLL and PYLL‰ of residents in Jiaxing were 248,307 years,6.16 years and 12.00‰,respectively.The PYLL‰for males was significantly higher than that for females(x2=37073.85,P＜0.01).The AYLL for females was 6.50 years,higher than that for males(5.98 years)(t =125.15,P＜0.01).The incidence of malignant tumors increased with age,especially in the older than 40 age group,with the older than 80 age group showing the highest rate at 1 779.01/105 (x2 =38 840 907,P ＜ 0.01).Rates for Lung cancer (70.59/105),colorectal cancer (39.86/105),liver cancer (29.14/105),breast cancer(26.73/105) and stomach cancer (26.00/105) were the most common malignant tumors in Jiaxing.Conclusions The morbidity and mortality of malignant tumors are showing signs of rising and the incidences of lung cancer and gastrointestinal cancer are particularly pronounced in Jiaxing.In consequence,measures for the prevention and control of malignant tumors should be developed with clearly defined objectives and research on the pathogenesis of malignant tumors should be stepped upto reduce the incidence and mortality of malignant tumors.

Objective To investigate the relationship between a mutation in the platelet-activating factor (PAF) acetylhydrolase gene (Arg92→His) and psoriasis. Methods Genomic DNA was analyzed in 47 patients with psoriasis and 52 healthy controls via polymerase chain reaction and restriction fragment length polymorphism. Results The frequency of the mutation in the PAF acetylhydrolase gene (Arg92→His) was significantly higher in patients with psoriasis than that in the controls (P

Objective To explore the influence of coal-arsenic exposure on human T cells proliferation and its mechanism.Methods Blood samples colleoted from individuals which lived in arsenism area of coal-burning type and non-arsenism area in Guizhou Province were divided into exposed group(17),mild(35),moderate(38) and severe arsenism group(19)and control group(35)according to Diagnosis Smndard for Endemic Arsenism (WS/T 211-2001).T cell stimulation index wag determined by methyl thiazolyl tetrazolium(MTT)colorimetric method.The intracellular Ca2+ exponential(IECa2+)in peripheral blood mononuclear cell(PBMC)was analyzed by Fho-3/AM dye and flow cytometry.DNA binding activity of actively T cells nuclear factor(NF-AT)in PBMC was evaluated by electrophoretie mobility shift assay(EMSA).Results Concanavalin A(ConA)stimulation decreased the T cells stimulation indexes in exposed group,mild,moderate and severe arsenism groups(1.315±0.962, 1.611±1.224,1.114±0.545,1.289±0.875)compared with control group(2.322±1.241),all the differences being statistically significant(P＜0.01).After stimulated by anti-CD3 monoclonal antibody(McAb),the T cells stimulation index in exposed group,mild,moderate and severe arsenism group(0.997±0.177,1.103±0.291,1.007±0.221, 0.957±0.205) were lower than that of control group(1.842±0.429,P ＜ 0.01 ). IECa2+ of PBMC after treated by anti-CD3 McAb in mild,moderate and severe arsenism group( 110.130±49.637,92.429±31.191,77.640± 35.372) were lower compared with control group(145.986±59.450,P ＜0.01 ). Moreover,IECa2+ in moderat and severe arsenism group were lower than exposed group(121.337±46.410,P ＜ 0.05). DNA binding activity of PBMC NF-AT in mild,moderate and severe arsenism group(1.354±0.446,1.290±0.291,1.159±0.411 ) were lowered than that of control group(1.722±0.291,P ＜ 0.01) and exposed group(1.611±0.294,P ＜ 0.05). Conclusions The coal-arsenic exposure can reduce the human T cells stimulation indexes,IECa2+ in PBMC and the DNA binding activity of NF-AT. It suggest that arsenic may suppress the proliferation ability of human T cells,which may be partly related to the influence of arsenic on T cell receptor(TCR)/CD3 signal transduetion pathway.

Objective To investigate the activation of T lymphocytes in human peripheral blood and the signaling molecules in protein kinase C/nuclear factor KB(PKC/NF-κB) pathway expressivity or activity changes in human peripheral blood mononuclear cells(PBMCs) exposed to coal-arsenic,to explore the role of PKC/NF-κB signal pathway in activation of T cells in human exposed to coal-arsenic. Methods Blood samples were collected from individuals who lived in arsenism area of coal-burning in Guizhou province, and were divided into asymptomatically exposed group (12),mild arsenism group (33),moderate arsenism group (34) and severe arscnism group (15) according to Diagnosis Standard for Endemic Arsenism (WS/T 211-2001). The individuals who lived in non-arsenism area were control group(27). The ratio of activated T ceils was analyzed by flow cytometry. DNA binding activity of NF-κB in PBMCs was evaluated by electrophoretic mobility shift assay(EMSA). The expression of PKCθ and phospho-PKCθ(pPKCθ) in PBMCs were detected with western blotting analysis. Results The ratio of activating T cells in asymptomatically exposed group[(21.76±15.31)%],mild arsenism group[(18.41±11.36)%],moderate arsenism group[(17.78±11.93)%]and severe arsenism group[(18.79±13.38)%]were all higher than that of control group[(3.19±2.12)%],the difference among all groups being statistically significant(F = 7.893,P < 0.05). DNA binding activity of PBMCs NF-κB in asymptomatically exposed group,mild arsenism group,moderate arsenism group and severe arsenism group(1.49±0.24,1.58±0.30,1.57±0.34,1.51±0.16) were higher than that of the control group(1.30±0.17),the difference being statistically sign/ficant(P < 0.05 or < 0.01). The expression of PBMCs pPKCθ in mild arsenism group,moderate arsenism group and severe arsenism group(0.64± 0.14,0.64±0.27,0.62±0.12) were all lower than that of the control group(0.93±0.20),the difference being statistically significant(P < 0.05). There were significant negative correlations between the expression of pPKCθ and the activity of NF-κB(r =-0.565,P < 0.01). There were significant positive correlations between the activity of NF-κB and the ratio of activating T cells(r = 0.546,P < 0.01). Conclusion Coal-arsenic enhances the DNA binding activity of NF-κB,reduces the expression of PBMCs pPKCθ in human PBMCs and up-regulates the activity of T cells. It suggests that the PKC/NF-κB signal might be one of transduction pathway via activating of T cells by coal-arsenic.

Objective Establish a method for measuring the activities of Galactocerebrosidase (GALC), α-Glucosidase(GAA), α-Galactosidase (GLA) and α-L-Iduronidase (IDUA) in dried blood spots specimen by tandem mass spectrometry ( MS/MS ).Methods A total of 2175 dried blood spot samples forinborn errors of metabolism in neonatalscreening center of Shanghai Xinhua hospital were collected in July and November, 2013.And twenty dried blood spot samples from patients withlysosomalstorage disorders( LSDs) of Shanghai Xin Hua Hospital were collected from September 2012 to January 2014.The extraction of DBS was incubated with enzyme substrates and internal standards.After liquid-liquid and solid-phase extraction, the extraction solution was dried under nitrogen and reconstituted.Then enzyme reaction products and internal standards were analyzed by MS/MS.Linearity, precision, accuracy and the limit of detection were evaluated.2175 dried blood spot samples were detected to establish the normal reference range for the activities of four enzymes according to 0.5th to 99.5th percentiles.20 specimens from patients withLSDs were detected to verify the reference range inclinical judgment.Results The intraassay and interassay precisions ranged from 1.7%to 11.8%, and the intraassay and interassay accuracies ranged from 85%to 115%.The linear coefficients for measured concentration of enzyme products/internal standards and theoretical concentration were 0.997-0.999.The limits of detection forGALC, GAA, GLA and GLA were 0.03 μmol/(L· h), 0.09 μmol/(L· h), 0.12 μmol/(L· h) and 0.16 μmol/(L· h) .The normal reference values for GALC, GAA, GLA and GLAwere 0.51-8.51μmol( L· h) ,1.99-22.22μmol/( L· h),1.68-41.59 μmol/(L· h) and 2.36-19.21 μmol/(L· h).The enzymes of 20 patients with LSDs were remarkably decreased compared to the normal range.The Krabbe, Pompe, Fabry, MPSⅠpatients can be effectively detected by this MS/MS method.Conclusions A MS/MS method for measuring GALC, GAA, GLA and IDUA enzyme activities in DBShas been established.

Aim at the two problems in the field of traditional Chinese medicine (TCM) mechanism elucidation, one is the lack of detailed biological processes information, next is the low efficient in constructing network models, we constructed an auxiliary elucidation system for the TCM mechanism and realize the automatic establishment of biological network model. This study used the Entity Grammar Systems (EGS) as the theoretical framework, integrated the data of formulae, herbs, chemical components, targets of component, biological reactions, signaling pathways and disease related proteins, established the formal models, wrote the reasoning engine, constructed the auxiliary elucidation system for the TCM mechanism elucidation. The platform provides an automatic modeling method for biological network model of TCM mechanism. It would be benefit to perform the in-depth research on TCM theory of natures and combination and provides the scientific references for R&D of TCM.
Animals ; Automation ; instrumentation ; methods ; Databases, Factual ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Gene Regulatory Networks ; Humans ; Medicine, Chinese Traditional ; Plants, Medicinal ; chemistry

Objective To produce human papillomavirus type 6(HPV-6)virus-like particles with Escherichia coli expression system and study its immunogenicity.Methods HPV-6 L1 gene was inserted into pmkaryotic expression vector pTO-T7 and then expressed in Escherichia coli ER2566.The HPV-6 L1 protein was purified by ammonium sulfate precipitation,ion-exchange chromatography,and hydrophobic interaction chromatography.Then the purified HPV-6 L1 self-assembled into virus-like particle after removing 1,4dithiothreitol(DTr).The morphology of the virus-like particles was investigated with dynamic light scatter and transmission electron microscopy,and the immunogenicity was determined with in vitro pseudownons neutralization as8ay.Results HPV-6 L1 was expressed in soluble form in Escherichia coli.Following the removal of DTT,purified HPV-6 L1 protein could assemble into virus-like particles as 25 am in the radius.And the animal immunization test showed HPV-6 virus-like particles can elite hish titer neutralizing antibodies.Conclusion The bacterially expressed HPV-6 L1 VLP is highly immunogenieity and easy to produce.And it can be good candidate of HPV-6 vaccine.

Acute Disease ; Adult ; Aged ; Blood-Brain Barrier ; physiopathology ; Brain Diseases ; blood ; chemically induced ; Carbon Monoxide Poisoning ; complications ; Female ; Humans ; Interleukin-6 ; blood ; Male ; Middle Aged

Objective To compare the differences of disease spectrum between patients with brain trauma injury (TBI) in the high altitude areas and those in the plain areas.Methods The front page information of medical records of local TBI patients admitted to military hospitals from 2001 to 2007 was extracted from the Chinese Trauma Database.Ten military hospitals from high altitude areas (high altitude group) and 10 military hospitals with the same hospital level from plain areas (plain group) were selected and the patients in the two groups were compared for their differences in general condition and disease spectrum.Results High altitude group displayed a larger proportion of male patients (P＜0.01),a lower age (P＜0.01),a smaller proportion of patients with Han nationality (P＜0.01),asmaller proportion of emergency patients (P＜0.01),a larger proportion of critically ill patients (P＜0.01),a lower median of hospital days (P＜0.01),a lower operation rate (P＜0.01),as compared with the plain group.The injury of the patients with TBI in turn were intracranial organ injury (excluding those with skull fracture),open wound of head,neck,and trunk,skull fracture,injury of nerves and spinal cord.The orders of TBI disease spectrum of the high altitude and plain groups were the same,but the disease compositions of the two groups had significant difference (P＜0.01).Conclusions Thereexist significant differences in demographics,admission status and disease spectrum of TBI patients inhigh altitude and plain areas.However,the current clinical treatments of TBI in high altitude areas are usually with reference to the experience in plain areas,which is worthy of paying attention by relevant departments.

Objective To obtain monoclonal antibodies ( mAbs ) against neutrophil gelatinase-associated lipocalin ( NGAL ) and a chemiluminescense immune quantification assay based one paired mAbs.Methods Six-to-eight weeks old female BALB/c mice were immunized with the purified recombinant human NGAL antigen( rhNGAL) that was produced by the Escherichia coil expression system.The spleen was fused with hybridoma for screening anti-NGAL monoclonal antibodies by indirect ELISA.Western blot was implemented to identify the reactivity with native NGAL. Results The rhNGAL antigen was found to form disulfide cross-linked dimers and present excellent immunogenicity.The reaction titer of the immune serum of NGAL immunized mice was about 106.Thirty mAbs were screened by indirect ELISA, hereinto;the EC50 values of mAb23C12 and 38D10 were 0.034 g/mL, 0.022 g/mL respectively.The antibodies pair, 38D10/23C12-SAE labeled with AcridiniumEster(AE), were shown to work well in chemiluminescense immune response quantitative detection which was screened by NGAL standardand clinical urine samples.This detection can resolve positive and negative samples with a statistically significant difference (P<0.0001).And the correlation coefficient R2between NGAL quantitative results and that of the Abbott's NGAL chemiluminescence immune assay kit was greater than 0.97.The detection linear range was 10-1500 ng/mL, analytical sensitivity of the method was 0.63 ng/mL.Conclusion Highly purified rhNGAL antigen and specific anti-NGAL monoclonal antibodies are generated in this study.The detection capability of method is comparable with that of the international commercial kit.