Human insulin gene(PCMV.INS) is successfully transferred and expressed into N1H3T3 cell by chitosan mediation.This is helpful in the research of the gene therapy of type 1 diabetes.

Objective To evaluate RR,DCR,PFS,OS and toxicities in a population affected by NSCLC using gefitinib as maintenance therapy after the first line chemotherapy.Methods From January,2006 to January,2008,seventy-one patients were enrolled with stable disease or partial response after firstline chemotherapy.They were divided into the observing group and the control group.Gefitinib was administered at the dose of 250 mg in observing group;placebo was also administered everyday in control group.Results Of 71 assessable patients ,overall response rate was 36.1% (13/36) in observing group and 14.3 % (5/35) in control group respectively (x 2 = 4.633,P = 0.036),and one patient (2.8 %) was observed complete response (CR) in observing group.The disease control rate was 83.3 % (30/36) in observing group and 42.9 % (15/35) in control group,respectively,(x2 = 14.782,P ＜ 0.001).The median PFS (progression free survival time) was 13 weeks in observing group and 11 weeks in control group respectively (x2 = 10.401,P =0.001).The median overall survival time (OS) was 13.2 months in observing group and 10.4 months in control group respectively (x2 = 7.696,P= 0.006).The median OS was 18.5 months in women and 11.2 months in men(x2 =22.864,P=0.011) .The median OS was 15.3 months in non-smokers and 10.3 months in smokers (x2 =10.389,P =0.007).The median OS was 16.0 months in adenocarcinoma and alveolar cell carcinoma patients and 10.2 months in squamous cell carcinoma patients (x 2 = 4.638,P = 0.001).The most common toxicity was rash ,diarrhea,fatigue and dry skin itching,and most of them were 1 or 2 grade.Conclusion Maintenance therapy with gefitinib after first-line chemotherapy may improve overall survival time and progression free survival time in patients with NSCLC,and it is effective and safe.

Objective To observe the morphologic change in rats with pulmonary fibrosis induced by bleomycin through antisense-human tissue inhibitor of metalloproteinase-1(hTIMP-1)transfection.Methods Thirty rats were divided into five groups randomly(six rats in each group),namely,hTIMP-1 transfection group,anti-sense hTIMP-1 transfection group,empty retroviral vectors transfection group,pulmonary fibrosis group,and the normal group.On the 1st,3rd,7th,14th,28th,60th,90th day of BLM administration to the hTIMP-1,anti-sense hTIMP-1 and retroviral vectors transfection group,the hTIMP-1 cDNA retroviral vectors containing sense and anti-sense ones and the empty vectors were conducted into the lungs of rats with pulmonary fibrosis,which were sacrificed on the 28th days.The pulmonary fibrosis group was given just BLM for the same period of time.The rats in the normal control groups were sacrificed on the same day.Observe the role of anti-sense hTIMP-1 transfection and the change of hydroxyproline.Results The degree of fibrosis and content of HYP were extenuated by antisense hTIMP-1 transfection on 1st and 3rd day after BLM exposure compared with the same time of fibrosis and transfection by empty retroviral vectors group,morphologically.Conclusion Transfection with antisense-TIMP-1 on the first and third day can suppress the process of pulmonary fibrosis induced by BLM to some extent.

Objective To evaluate the clinical significance of telomerase in the diagnosis of lung cancerusing SROC curve method.Methods Looking“telomerase”and“lung cancer”as keywords,retrieving journalspublished within past 20 years in order to incorporate into literatures and to collect data .To conduct the SROC analysisusing Meta -DiSc 1.4 software.Results 1.Twenty -two documents were sampled as tissue specimensand the heterogeneity was relatively large (P =0.017).To analyze the data with random effective models ,thecombined sensitivity and specificity were 0.788(0.761 -0.814)and 0.955(0.936 -0.969),respectively.TheSROC AUC area under the curve was 0.9515,SE(AUC) =0.0145.2.There was no heterogeneity(P =0.633)amongthe 10 lavaged literatures.By use of fixed effects model for data analysis ,the combined sensitivity and specificitywere 0.777(0.734 -0.816) and 0.922(0.888 -0.948),and SROC AUC area under the curve was0.9369,SE(AUC) =0.0141.Conclusion Telomerase is a ideal tumor marker,and the detection of telomeraseactivity in lavage fluid is stable and accurate in clinical diagnosis .

ObjectiveTo study the effects of chemotherapy on growth development and endocrine function of long-survived children with acute lymphoblastic leukemia (ALL). Methods30 ALL patients who were received standard chemotherapy and survived more than five years were enrolled in this study. Their growth and development data and endocrine function examination were investigated. ResultsThrough testing,except two cases of height more than two standard deviation above,the others were all within the normal range; BMI exceeded bid in 1, and the rest were in the normal range;The results of sex hormones examination were consistent with age and Tanner installment, the girls appeared secondary sex characteristics in 9 years old or so,menstruation in 13 years old. Boys appeared sec-ondary sex characteristics around 10 years old;Cortisol and promote adrenal cortical hormone with 2 cases of obese children were in the normal range,but c-peptide and insulin were elevatory;The results of IGF-1 were in the normal range. ConclusionChemotherapy had no significant effect on growth development and endocrine function for patients with ALL.

Objective To investigate the clinical features and the gene mutation of patients with spinocerebellar ataxia type3 and type7.Methods The trinucleotide repeat mutations were detected by polymerase chain reaction (PCR),agarose gel electrophoresis method,and DNA sequencing in 13 patients,4 related members and 4 common members from 3 spinocerebellar ataxia families.Results Among the 13 patients,four patients had SCA3/MJD(CAG) n expansion mutation(n = 65 ～ 74),nine patients had SCA7 allele expansion for 40 ～ 52 times.Patients with type 3 or 7 showed significant difference in nervous system injury.Conclusion The difference of clinical feature might be used in diagnosis of SCA3/MJD and SCA7,but genotype determination would be the only method of definite diagnosis.

Objective To explore the main pathogenic bacteria and antibiotic resistance patterns in children with bacterial diar‐rhea from Guangzhou region .Methods Regular bacterial culture of stool samples from children with suspicious bacterial diarrhea was performed to isolate the pathogen during 2011 to 2012 ,followed by the analysis of its composition and serum type ,ward distri‐bution characteristics and drug resistance to 12 antimicrobacterial drugs .Results 416 strains of pathogenic bacteria were isolated from diarrhea children during 2011-2012 ,in which salmonella ,enteropathogenic E .coli ,Campylobacter jejuni and Candida albicans isolates accounted for 53 .61% ,37 .98% ,5 .29% and 1 .68% respectively .Drug resistance rate of the main strains to 12 antimicrobi‐al agents was 85 .25% to ampicillin ,54 .28% to compound sulfamethoxazole ,44 .70% to cefotaxime ,42 .53% to ceftriaxone , 40 .66% to chloramphenicol ,23 .55% to ceftazidime ,23 .36% to aztreonam ,14 .88% to ciprofloxacin ,8 .07% to cefepime ,7 .99% to cefperazone/sulbactam ,7 .42% to piperacillin/tazobactam respectively ,and no resistance to imipenem was detected .Conclusion The pathogenic bacteria causing diarrhea mainly includes salmonella ,pathogenic e .coli ,campylobacter jejuni in children from guang‐zhou region ,the top five sensitive antimicrobial reagents for the main strains includes imipenem ,piperacillin/tazobactam ,cefpera‐zone/sulbactam ,cefepime and ciprofloxacin .

Objective To observe the clinical effect and safety of polymorphous light eruption(PLE) and those of chronic actinic dermatitis(CAD) treated with Artemtherin.To further study better treatment methods for photodermatitis.Methods 105 patients with CAD and 63 patients with PLE were divided into the treatment group and the control group randomly.In the treatment group,63 cases of CAD and 32 cases of PLE were treated with Artemtherin.In the control group,42 cases of CAD and 31 cases of PLE treated with Hydroxychlorquine.The dosages of both groups were 40 mg and 200 mg at each time,twice a day respectively.Both groups were topically treated with 10% ointment zinc oxide,twice a day,for one month.Results The effective rate of treatment group and control group with PLE patients were 84.4%(27/32) and 80.6%(25/31),respectively.There was no significant difference between both groups in terms of the effective rate of PLE.The effective rate of treatment group and control group with CAD patients were 85.7%(54/63) and 81%(34/4),respectively.There was not any side-effect reported among these patients treated with Artemtherin.Conclusions It is effective,safe,economic,and convenient to treat PLE and CAD with Artemtherin.

Objective To improve the specific nursing standards of neostomy and chronic wounds,make patients receive professional guidance and standard treatment. Methods To establish professional team in the neostomy and conduct systematic and specialized training for team members, to work out nursing standards in the neostomy and execute nursing consultation and discussion in team on special types of chronic wounds. Results The professional knowledge of the team members and clinical nurses was enhanced, 18lessons about 50 class-hours were given, the attendance rote reached above 96% since the establishment of professional team in the neostomy, the quality of clinical nursing was improved and the complications were reduced. Conclusions The establishment of professional team provides clinical nurses with a platform of communication and learning, reflect their own value, and promote development of nursing science.

OBJECTIVE:To observe the efficacy and safety of Compound yimucao oral liquid combined with oxytocin in the prevention of postpartum hemorrhage and promotion of uterine involution for puerpera of vaginal delivery. METHODS:240 preg-nants with natural childbirth of vaginal delivery were randomly divided into control group and observation group. Control group was injected oxytocin 20 U in buttock after delivery. Observation group was additionally treated with Compound yimucao oral liquid 20 ml,tid for consecutive 2 weeks. Postpartum vaginal bleeding,uterine involution and incidence of adverse reactions in 2 groups were observed. RESULTS:Compared with control group,postpartum hemorrhage volume after delivery 2-24 h,incidence of post-partum hemorrhage,uterus size,uterine hemorrhage and lochia duration in postpartum 42 d in observation group were significantly better than control group,the differences were statistically significant(P<0.05);there were no significant differences in the hemor-rhage postpartum volume after delivery 1 h and 1-2 h and fundal height in postpartum 42 d in 2 groups(P>0.05). There were no fever,rash,nausea and other obvious adverse reactions in 2 groups. CONCLUSIONS:Compound yimucao oral liquid combined with oxytocin can obviously decrease the postpartum bleeding and promote uterine involution,with good safety.