Objective To investigate the Reprimo and hMLH1 gene promoter methylation detection value in the diagnosis of early gastric cancer.Methods Chose patints in Shaanxi Provincial People’s Hospital from September 2013 to April 2014,50 cases of patients with chronic atrophicgastritis with intestinal metaplasia,50 cases of patients with gastricmucosal atypical hyperplasia,50 patients with gastric cancer,endoscopic gastric biopsy samples,and 30 cases of normal gastric mucosa biopsy tissues as control group.Analysis abnormal expression in Reprimo gene and hMLH1 genes promoter methylation,compared the differences.between groups of patients.Results The patients with gastric mucosatissues Reprimo and hMLH1 genes promoter methylation positive rate was significantly higher than that of normal group,the difference wasstatistically signifi-cant (P<0.05).Reprimo gene promoter methylation were:patients with chronic atrophic gastritis with intestinal metaplasia 28% (χ2 =10.18,P < 0.05).Patients with gastric mucosalatypical hyperplasia 56% (χ2 = 25.84,P < 0.05)and patients with gastric cancer 62% (χ2 = 30.36,P < 0.05).hMLH1 gene promoter methylation were:patients with chronic atrophic gastritis with intestinal metaplasia 20% (χ2 =4.39,P <0.05),patients with gastric mucosal atypical hyperplasia 44% (χ2 =15.13,P <0.05)and patients with gastric cancer 48% (χ2 = 17.41,P <0.05),high specificity of detection.Conclusion Reprimo and hMLH1 gene’s detect value in the diagnosis of early gastric cancer is very high,high specificity,it is an effec-tive way of diagnosis,treatment in clinical diagnosis of patients with broad prospects.

ObjectiveTo analyze the relative influential factors of hearing rehabilitation of the deafened children with multichannel cochlear implant. Methods42 prelingually deafened children who accepted multichannel cochlear implant were evaluated with their hearing ability, hearing thresholds and talent level, while their family and usage of the multichannel cochlear were investigated. Results and ConclusionThe result shows that the factors influencing the hearing rehabilitation are the occupations of the parents, income of the family, the time between diagnosing deaf and the operation, the time after the cochlear implant operation and the talent level. The results of the logistic regression show that the deafened children can gain their hearing developing rapidly if they living in a family with high income, their mothers have accepted more education, and they accepted longer time of continuing hearing-aid, etc.

ObjectiveTo analyze the relative influential factors of hearing rehabilitation of the deafened children with multichannel cochlear implant. Methods42 prelingually deafened children who accepted multichannel cochlear implant were evaluated with their hearing ability, hearing thresholds and talent level, while their family and usage of the multichannel cochlear were investigated. Results and ConclusionThe result shows that the factors influencing the hearing rehabilitation are the occupations of the parents, income of the family, the time between diagnosing deaf and the operation, the time after the cochlear implant operation and the talent level. The results of the logistic regression show that the deafened children can gain their hearing developing rapidly if they living in a family with high income, their mothers have accepted more education, and they accepted longer time of continuing hearing-aid, etc.

No abstract available.

OBJECTIVEThis study aimed to investigate the effects of hirudin on the expression of transforming growth factor (TGF-β1) and basic fibroblast growth factor (bFGF) in human gingival fibroblasts (HGFs) in vitro, as well to explore its func- tion in the mechanism of gingival remodeling.

METHODSAfter culturing was performed with classic tissue-explant method, HGFs were derived from normal gingival and gingival hyperplasia tissues followed by orthodontic treatments with different concentrations of hirudin. The mRNA and protein expression levels of TGF-β1 and bFGF were respectively detected by real time quantity polymerase chain reaction and immunocytochemistry.

RESULTSCompared with normal HGFs, TGF-β1 expression promoted collagen synthesis of fibroblasts, whereas bFGF collagen synthesis was decreased in hyperplasia HGFs without hirudin (P < 0.05). Hirudin significantly upregulated the expression levels of bFGF but downregulated TGF-β1 in hyperplasia HGFs (P < 0.05).

CONCLUSIONOrthodontic force may influence the balance of collagen synthesis and degradation in HGFs. Hirudin may modulate the balance of HGF collagen metabolism, thereby promoting gingival remodeling.

ObjectiveTo investigate the learning curve of total thoracoscopicy cardiac surgery.MethodsClinical data of a succession of 125 patients undering total thoracoscopicy ASD and VSD repair between October 2004 to January 2010 were collected and reviewed.The procedure was perfomed by the same surgeon.The patients were divided equally into 5 groups (groupA,B,C,D and E,n =25 in each group ) according to the sequence of the operation.The operative time,extracorporeal circulation time,aortic cross-clamped time,the rate of conversion rate to thoracotomy and postoperative complications were compared between the 5 groups.ResultsThere were no statistically significant differences between the 5 groups with respect to age,gender,weight,dieases and surgical approach(P ＞ 0.05).The operative time,extracorporeal circulation time and aortic clump time in group A and group B significant longer then that in group C,group D and group E(P ＜0.05).Group A and group B was no statistically significant difference each other( P ＞ 0.05 ).Group C,D and E have no statistically significant differences between(P ＞0.05 ).The rate of conversion rate to thoracotomy and postoperative complications in 5 groups have no statistically significant differences comparative( P ＞ 0.05 ).ConclusionThe learning curve of total thoracoscopicy surgery is approximalely 50 cases.

Objective To investigate the changes of serum leptin levels and the influential factors in maintenance peritoneal dialysis patients.Methods Seventy-six peritoneal dialysis patients were chosen at the time before,and 3 months,6 months,12 months,18 months and 24 months after they began the peritoneal dialysis therapy,to examine body mass index (BMI),triceps skinfold thickness (TSF),abdominal circumference,homeostasis model assessment of insulin resistance (HOMA-IR),the plasma lipid profile,and leptin in the same situation.Results For 24 months,these patients showed higher serum leptin level than the values before commencing peritoneal dialysis treatment (P ＜ 0.01).The level of leptin was positively correlated with the BMI(r =0.412,P ＜ 0.01),TSF(r =0.308,P ＜ 0.01),abdominal circumference(r =0.284,P ＜ 0.01),HOMA-IR(r =0.184,P ＜ 0.01) and TG(r =0.288,P ＜ 0.01),negatively corelated with the high-density lipoprotein cholesterol(HDL-C)(r =-0.285,P ＜ 0.01).Multiple logistic regression analysis showed that BMI (β =0.339,P ＜ 0.01),TGβ =0.157,P ＜ 0.01) and HDL (β =-0.126,P ＜ 0.05)were significant predictive factors for the changes of serum leptin levels.Conclusion Leptin maybe involve in the occurrence and the development of cardiovascular events like other metabolic parameters in peritoneal dialysis therapy.

Objective To analyze the relationship of penA, ponA, porB and mtrR gene mutations with the reduced sensitivity to ceftriaxone in N.gonorrhoeae isolates from Shenzhen city.Methods A total of 296 clinical isolates of N.gonorrhoeae were collected in Shenzhen city from 2009 to 2011.The agar dilution method was used to estimate the sensitivity of these N.gonorrhoeae to ceftriaxone.Totally, 53 strains with reduced sensitivity to ceftriaxone (minimum inhibitory concentration (MIC): 0.06-0.50 μg/ml) were identified, and 53 strains with high sensitivity to ceftriaxone were randomly selected from the remaining strains and served as the control group.PCR was performed to amplify the penA, ponA,porB and mtrR genes from the 106 isolates followed DNA sequencing.Results The mosaic structure of the penicillinbinding protein 2 (PBP2) gene (penA gene) was found in only one isolate with a ceftriaxone MIC of 0.125 0 μg/ml.Amino acid sequence analysis of the remaining 105 isolates yielded 16 different amino acid patterns.The MICs of ceftriaxone were relatively high (0.062 5 μg/ml) in N.gonorrhoeae strains harboring the amino acid patterns ⅩⅢ, ⅩⅧ or ⅩⅩⅩⅧ,but relatively low (0.008 0 μg/ml) in those harboring the amino acid pattern Ⅱ.No significant differences were observed in the frequency of mtrR, porB or ponA gene mutations between N.gonorrhoeae isolates with reduced sensitivity to ceftriaxone and those with high sensitivity (all P ＞ 0.05).Conclusions The mosaic structure of PBP2 may be not the primary reason for reduced sensitivity of Neisseria gonorrhoeae to ceftriaxone in Shenzhen, while different amino acid patterns produced by various mutations in amino acid residues at positions 500-580 in the non-mosaic PBP2, together with mtrR, porB and ponA mutations, may play more important roles in the reduced sensitivity.

Objective:To analyze the craniofacial morphology characeristics of patients with peg-shaped upper lateral incisors. Methods:1 13 patients,aged 12 ~28 years,with peg-shaped upper lateral incisors were included,lateral cephalograms were taken and analyzed cephalometrically.Data were statistically analysed.Results:The sagittal facial patterns were skeletal Class Ⅰ(40.71%),skeletal Class Ⅱ(9.73%)and skeletal Class Ⅲ(49.56%).The vertical skeletal patterns were average vertical type (41.59%),high vertical type(18.58%)and low vertical type(39.82%).SNA,ANB,Ptm-A(mm),U1-SN,L1-NB,UL-EP were smaller(P<0.05)and SNB,PP-GoGn,SN-MP,Y axis,U1-L1,U1-NA,L1-MP and Z angles were increased(P<0.05).Conclu-sion:Patients with peg-shaped upper lateral incisors show Class Ⅲ skeletal pattern with maxillary retrognathia and mandibular prog-nathism.

Objective To observe the incidence of acute radiation pneumonitis (ARP) in patients with nonsmall cell lung cancer treated by three-dimensional conformation radiotherapy or intersity-modulated radiation therapy,and investigate the predictive value of high dose volume and low dose volume of the total and ipsilateral lung on ARP.Methods 174 patients with non-small-cell lung cancer verified by pathology who received radical radiotherapy in our hospital from Aug 2013 to Nov 2015 were screened.Radioactive dose was 60 Gy-70 Gy,with 97 patients' dose of 60-64 Gy and 77 patients' dose of 65-70 Gy.Chemotherapy was done by paclitaxel + pentium first line treatment.155 patients were treated with radiotherapy alone and 19 with radiotherapy combined with chemotherapy.The V5～ V30,MLD (mean lung dose),V5ipis ～ V30ipsi,MLDipsi were calculated from the dose volume histogram system.The ARP was evaluated according to Common Toxicity Criteria 4.0 (CTC4.0).Univafiate and nultivariate analysis and receiver operating characteristic (ROC) curves were performed to assess the correlated factors of ARP.Results Of 174 patients,26 patients (14.94％) developed radioactive pneumonia at grade 2,11 patients (6.32％) at grade 3,2 patients (1.15％) at grade 4.The correlative factors included the radiochemotherapy regimen (sequential chemotherapy to radiotherapy or concurrent radiochemotherapy),V5,V10,V20,V30,MLD of the total lung and ipsilateral lung according to univariate analysis.Multivariate analysis of all the factors mentioned above showed the V5,V20ipsi and MLD were the independent predictive factors associated with ARP.ROC analysis indicated that the cut-off point of V5,V20ipsi,MLD were 62.38％,47.14％and 16.85Gy respectively.According to the V5,V20ipsi value,174 patients were divided into three groups:B group V5＜62％+V20ipsi≥47％,C group V5≥62％+V20ipsi＜47％,D group V5≥62％+V20ipsi≥47％.The chisquare test between the C group and D group has statistical significance.Conclusion V5,V20ipsi,and MLD are the independent risk factors of ARP.Compared with V5,limiting V20ipsi threshold is more likely to result in ARP.