Objective To prepare mouse anti-human monoclonal antibodies against B7-H6 and to identify their biological characteristics. Methods The B7-H6 gene was cloned by RT-PCR from a human lung adenocarcinoma cell line ( A549 ) and then subcloned into the eukaryote expression vector pCMV3 to construct the recombinant vector pCMV3-B7-H6. The recombinant vector pCMV3-B7-H6 that was verified with enzyme digestion and gene sequencing was transfected into NIH/3T3 cells by electroporation. BALB/c mice were immunized with the successfully transfected cells named 2H8 through intraperitoneal injection. The monoclonal antibodies against human B7-H6 with the advantages of high affinity and specificity were pre-pared by using hybridoma technology. Western blot assay and flow cytometry analysis were used to identify the specificity of prepared monoclonal antibodies. Results The recombinant eukaryotic expression vector encoding B7-H6 was successfully constructed. Two hybridoma clones that stably secreted monoclonal anti-bodies against B7-H6 were screened out by using flow cytometry analysis and the monoclonal antibodies se-creted by them were belonged to IgG2a isotype. Specific reactions between B7-H6 and the secreted mono-clonal antibodies were confirmed by Western blot assay and flow cytometry analysis. Conclusion The mon-oclonal antibodies which recognized B7-H6 specifically were prepared successfully.

Objective　To investigate the clinical significan ce of pelvic lymphadenectomy in advanced ovarian carcinoma. Methods　A total of 86 cases of advanced ovarian cancer with surgical treatment were assigned to 3 groups according to the size of residual focus and the performanc e of pelvic lymphadenectomy. Group A consisted of 42 cases with pelvic lymphaden ectomy and the diameter of residual focus smaller than 2 cm; Group B, 26 cases, underwent pelvic lymphadenectomy but with the residual focus larger than 2 cm; Group C con sisted of 18 cases without pelvic lymphadenectomy and the diameter of residual f ocus larger than 2 cm. All patients received CAP chemotherapy for 6 to 8 course of treatment and were in similar clinical stages and pathological grading. Results　The 5 year survival rate was 30.1% (13/42) in Group A, and 11.5% (3/26) in Group B with significant difference (P<0.05). Group C's 5 year survival rate was 11.1%(2/18). No significant difference was found betwee n Group B and C. Conclusion　Application of pelvic lymphadenecto my on those with residual focus less than 2 cm can apparently improve the patien ts' survival rate. But when the diameter of the focus is larger than 2 cm, pelvi c lymphadenectomy is not necessary.

Objective To investigate the value of multi-slice spiral CT (MSCT) in diagnosis of colorectal carcinoma. Methods MSCT images of 42 cases of colorectal carcinoma proved by surgery and pathology were retrospectively analyzed. Multiplanar reconstruction (MPR) in all cases, and curved planar reconstruction (CPR), shaded surface display (SSD), CT virtual colonoscopy (CTVC) and Raysum were performed in some of the cases. MSCT findings were analyzed in comparison with operative and pathologic features. Results The detecting rate and quatitative rate of colorectal carcinomas with MSCT were 100%,respectively.The accurate rates were 82.9%(29/35) and 100%(7/7) in detection of invasion of surrounding structures and metastasis in abdominal organs respectively,the sensitivity and specificity for detetion of lymph node metastasis were 71%(22/31) and 100% with MSCT imaging.Conclusion MSCT scan with multiform reconstruction techniques can make definite diagnosis of colorectal carcinoma, which is helpful for treatment plan.

Objective In order to investigate the relationship between EB virus superinfection and HBV or HCV persistent .Methods 16 cases of EBV with superinfected HBV or HCV as experimental group and 16 HBV or HCV infected patients without EBV infection with the similar clinical symptoms and blood test results,as control group,both were followed up for one year. Results The disease course of experimental group was longer than the control group(203 19?168 29 days vs 64 63?56 62 days,(P

Allergic rhinitis (AR) is a noninfectious inflammatory response in nasal mucosa caused by allergens, which is contacted by a specific individual. The immune imbalance of Th1/Th2 plays an important role in the pathogenesis of AR. In?terleukin (IL)-33, the novel cytokine of IL-1 family, is an important regulatory factor of allergic diseases, autoimmune diseas?es and various inflammatory diseases. IL-33 is a kind of alarm, which is mainly secreted and released by damaged tissues and cells, especially impaired epithelial cells and endothelial cells. IL-33 binding to its receptor ST2L can activate a variety of immune cells to produce Th2 cytokines, precipitating and maintaining Th2 polarization, increasing AR immune inflamma?tion, which is the new target of AR in research and treatment. In this article, we have done a brief overview for the biological functions of IL-33 and its receptor ST2L and the research progress in the AR.

Based on the results of oral glucose tolerance test( OGTT )and the levels of 1-h plasma glucose ( 1 hPG),793 subjects were classified into three groups:583 with NGTN ( normal 1 hPG in OGTT),127 with NGT1 H( higher 1 hPG in OGTT) and 83 with IGT( impaired glucose tolerance).NGT1H group had large waist circumference,higher body mass index,fasting plasma glucose( FPG),triglyceride,and lower high density lipoprotein-cholesterol than those of NGTN group.NGT1 H group had higher homeostasis model assessment insulin index ( 1.2 ± 0.6),lower homeostasis model assessment β3 ( HOMA-β ) (4.5 ± 0.7 ) and insulinogenic index (2.1 ±0.7) than those of NGTN group(0.5 ±0.6,4.8 ±0.7,2.7 ±0.9,respectively,all P ＜0.05 ).HOMA-β of NGT1 H group was higher than that of IGT group(4.5 ±0.7 vs.4.4 ±0.6,P ＜0.05 ).The results indicate that 1 hPG in OGTT may identify a condition of glucose metabolic abnormalities characterized by insulin resistance and reduced β-cell function.

Objective To compare the mental health among students of the Han,Y i,Ham,Dai,Lahu and Wa nationalities in Pu 'er Health school and provide the basis for mental health education of minorities.Methods A total of 2894 students of grade one and two,which are the Han,Yi,Hani,Dai,Lahu and Wa nationalities of Puer health school in Yunnan Provinc,were tested with SCL-90.And then an analysis was carried out by the characteristics among different nationalities on mental health.Results ①The psychological problem's ratio of minorities in Health school students was 40.3％.Detection rate of psychological problems in descending order is Wa 48 (55.8％),Dai 75 (41.4％),Yi 258 (41.0％),Hani,182 (40.2％),Han 557 (39.1％) and Lahu 46 (38.3％).The factor scores in descending order were obsessive-compulsive (38.6％),interpersonal sensitivity (33.2％),phobic anxiety (27.5％),hostility (25.3％),depression (23.6％),anxiety (22.4％),paranoid ideation (21.9％),psychotism (17.4％) and somatization (13.7％).②The ratio of psychological problems among different nationalities had shown significant differences (P＜0.05,P＜0.01) except for hostility factor.③In SCL-90,the scores of minority medical school students were all higher than those in the national youth norm.There existed significant differences among the most factor scores of SCL-90 (P＜0.01,P＜0.05).④The mental health of Wa was the worst.While,the mental health of Yi and Lahu were better than other ethnic groups.Conclusion The mental health of minorities medical school students is not optimistic.Therefore,the mental health education should be strengthened in the minority medical school students.

Objective To investigate the possibility of plastic and cosmetic operation incorporating epicanthoplasty with the double-eyelid procedure in one stage to achieve a more subtle scar in epicanthus patients with single eyelid. Methods After designing incision line of the epicanthic flap, double-eyelid line and the lower eyelid incision curved line, we cut the medial canthus skin transversely to reach a new medial canthus point, incised the part of front angle of medial palpebral ligamentum longitudinally and fixed the end point of front angle of medial palpebral ligamentum to nasal dorsum fascia firmly. Double eyelid operation was routinely performed to remove redundant small triangle skin as well as some patchy of orbicularis on the new medial canthus point. Along with eyelid edge about 1 to 2 mm to eyelash, the temporal side was cut with curved line till its disappearance by eyelid's "cat ear". The lower eyelid flap was separated downward and the superfluous flap and some patchy of orbicularis cut. The skin was su-tured to make postoperative scar hidden, blepharophimosis increased and the fold disappeared. Results 46 eyes (23 cases) were operated and satisfactory aesthetic results were obtained. Palpebral fissure was enlarged to 2 to 4 mm with epicanthic scar disappearance and formation of double-eyelid. Conclusions This is a simple and effective procedure with hidden epicanthic scar and the double-eyelid blepharoplasty could be performed simultaneously. Most patients receive satisfactory results during the 0.5 to 2 years' follow-up period except 2 cases with mild proliferation of epicanthus in half a year. It is especially suitable to correct the severe epicanthus palpebralis or epieanthus tarsalis.

Objective To assess the value of diffusion tensor imaging(DTI)and susceptibility weighted imaging(SWI)in diagno-sis of acute diffuse axonal injury.Methods The imaging data of 45 cases with acute DAI diagnosed by clinical symptoms were ana-lyzed retrospectively.In all the images of T2 WI,FLAIR ,DTI and SWI we analyzed the characteristic of signal and distribution of all the lesions.The numbers of lesions found in each sequence group were statistically analyzed by chi-square test.Results 497 lesions of DAI we all found.265 lesions were found in FLAIR,the detection rate was 53.3%.313 lesions in DTI,the rate was 62.9%.448 lesions in SWI,the rate was 90.1%.The detection rate of DTI and SWI were significantly higher than FLAIR,they had significant difference(P <0.05).Conclusion DTI combined with SWI,we can find DAI lesions in acute phase more comprehensively.DTI di-mensional diffusion tensor imaging technique can help us visualize discontinuous fibers intuitively in DAI and confirm objectively the existence of DAI lesions.

A cross-section study was designed to investigate clinical utility of lipid measures for prediction of insulin resistance(IR).A total of 793 healthy volunteers were divided to IR group or non-IR group based on the value of HOMA-IR.Area under receiver operating characteristic curve(ROC)found that TG/HDL-C was more related with IR in comparison with other lipid ratios,and could be used as a measure in predicting IR.