Objective To clone and express Schistosoma j aponicum cyclophilin B (SjCyPB) gene in E.coli,and to identify and analyze the immunity of recombinant proteins.Methods A pair of specific primers was designed according to GenBank of Schistosoma japonicum sequence.SjCyPB gene was amplify by PCR and then connected to pET28 vector.The recombinant plasmid pET28a (+)-SjCyPB was constructed and transformed into E.coli BL21 cell line,the recombinant plasmid was identified by double enzyme digestion and sequence analysis.After induced by isopropyl-B-D-thiogalaetoside (IPTG),the expressed recombinant proteinwas purified by affinity-chromatography,and then verified by Western blotting.Rats were immunized recombinant SjCyPB,andthe SjCyPB-specific IgG was detected by ELISA.Results SjCyPB gene was successfully inserted into pET28a(-) vecter which identified by double enzyme digestion and sequence analysis.Recombinant SjCyPB protein was highly expressed in E.coli.The Western Blotting analysis confirmed that the recombinant protein could specifically combine to S.japonicum-infected rabbit serum.Using recombinant protein to immunize rats,the SjCyPB-specific IgG antibody titer was 1 ∶ 51 200 detected by ELISA.Conclusion The recombinant SjCyPB is successfully constructed,and recombinant SjCyPB has immunogenicity and antigenicity.

BACKGROUND:Ligamentum flavum hypertrophy is one of the most important factors of lumbar spinal stenosis, but the molecular mechanism is stil not very clear. OBJECTIVE:To explore the role of basic fibroblast growth factor, connective tissue growth factor and transforming growth factor β1 in hypertrophy of the lumbar ligamentum flavum. METHODS: The ligamentum flavum samples were divided into three groups according to different diseases: control group (acquired from the patients with lumbar spinal canal tumor,n=6), lumbar disc herniation (LDH) group (acquired from the patients with LDH,n=6) and lumbar spinal stenosis (LSS) group (acquired from the patients with LSS,n=6). Then the mRNA expressions of basic fibroblast growth factor, connective tissue growth factor, transforming growth factor β1 and colagen I, III, V of the ligamentum flavum were detected using real-time quantitative RT-PCR method. The roles of basic fibroblast growth factor, connective tissue growth factor and transforming growth factor β1 were explored. RESULTS AND CONCLUSION:The expression of basic fibroblast growth factor mRNA in the LSS group was significantly higher than that in the LDH and control groups (bothP < 0.05); the expression of connective tissue growth factor mRNA was not found statisticaly different among the three groups, although it was slightly higher in the LSS group (P> 0.05); the expression of transforming growth factor β1 mRNA was significantly higher in the LSS group than in the LDH and control groups (bothP < 0.01). The colagen I mRNA expressed significantly higher in the LSS group than the LDH and control groups (bothP < 0.05), but both the colagen III and V mRNA showed no significant difference among the three groups (P> 0.05). This study indicate that both basic fibroblast growth factor and transforming growth factor β1 play important roles in the formation process of the lumbar ligamentum flavum hypertrophy, and the main type of the colagen in the hypertrophied ligamentum flavum is colagen I.

Purpose To study the clinic-pathologic features, differential diagnosis and prognosis of lymphoepithelioma-like carcinoma of cervix. Methods Eight cases of lymphoepithelioma-like carcinoma of cervix were retrieved from our institution. HE staining, im-munohistochemistry and in situ hybridization were perform on those cases. Results Of the 8 cases of lymphoepithelioma-like carcino-ma,the median age was 44 years old ( ranged from 29-67 years) and all of the clinical stage belonged toⅠB. Grossly, 5 cases presen-ted a cauliflower-like appearance, 1 case grew as a polyp protrusion, and the other 2 cases showed a non-specified thicken change of cervix. Histologically, the tumors were composed of undifferentiated large cells, either loosely or closely-packed, with the nested and trabecular growth pattern. The tumor cells were generally oval or polygonal in shape, while the demarcation between the cells was indis-tinct and form the syncytial appearance. The nuclei were vesicular and had one or more prominent nucleoli. There were abundant infil-trates of lymphocyte and plasma cells among the tumor nests. The tumor cells showed positive expression of CK in 100% of cases, p63 in 37. 5% of cases, p16 in 62. 5% of cases, CK5/6 in 75% of cases, Ki-67 in 10% ~30% of cases. The stromal lymphocytes mainly expressed CD3 and CD8. EBER was negative in the entire tumor cells while was weakly positive in the stromal lymphocytes in one case. The follow-up data, which terminated at June 2013, demonstrate 7 cases were alive and 1 case died of the disease. Conclusions Lymphoepithelioma-like carcinoma occurred of cervix is rare. They have distinctive morphologic features and overall favorable prog-nosis. The accurate diagnosis is dependant on the combination of the histologic and immunohistochemical examination.

Objective To investigate on out the deformity in the elderly of longevous area and the characteristics of the regions in Yunnan Province. Methods According to the forth census information, using multistage sample typical survey to the 18 counties (cities) with centenarians over 1/100 000. The deformity types of people aged 60 and over and the deformity rate of various age groups and its distribution were investigated. Results Among the 6 477 people aged 60 and over investigated, a total of 1 928 people were in deformity, the deformity rate was 29 8%. The elder the people, the higher the deformity rate was. The highest deformity rate was in Kunming and Chuxiong prefectures. The audition deformity was highest among all types of deformity in elder people. The occurrence of fracture was highest in Miao Nation in Honghe prefecture, reaching 18.1%. About 14 % of the centenarian people sufferred from dementia. Conclusions Effective control in blood pressure and osteoporosis are important method to protect the elder people and to promote the level of quality of life of the elderly.

Objective To understand the blood pressure level of the aged in longevous area of Yunnan Province. Methods According to the forth census information,typical multistaged sample-survey was used for 15 counties (cities) with centenarians over 1/100 000 and the 3 counties (cities) with centenarians under 1/100 000. The blood pressure of people aged 60 and over were measured and the investigation questionnaire was filled in. Results The overall level of the blood pressure was systolic pressure (130.8?24.6) mm Hg and diastolic pressure (81.7?14.6) mm Hg. The systolic pressure increased in slow slope with the age growing, ranged 126.2-137.6 mm Hg, and higher in male than in female. The diastolic pressure was not affected by age growing. The difference of blood pressure in nationality was mainly affected by the latitude and the elevation. Conclusions With the age increasing, the blood pressure level of the aged people gradually increases.

BACKGROUND: Diabetic morbidity can predict its progress tendency. National diabetic morbidity has been increased compared with previous level at present.OBJECTIVE: To compare the diabetic morbidity between populations with impaired glucose tolerance or normal blood glucose tolerance to analyze its correlative influencing factors.DESIGN: A cluster sampling survey in two communities of Liuzhou City Guangxi Zhuang Autonomous Region based on adults.SETTING: Department of endocrinology in a university hospital.PARTICIPANTS: Diabetic morbidity was investigated in 4 relative big unit communities of Liuzhou City between July and August 1994. The resident population of the communities was 11 886, which were all adults between 20 and 75 years old and lived in Liuzhou City for more than 5 years. Populations with either impaired glucose tolerance or normal blood glucose tolerance in 2 of the 4 unit communities were followed up in October 1999. Totally 9 230 individuals should be checked and 6 020 subjects were actually checked with the response rate of 65.22% (quite a few cases lost followed up due to unemployment and retirement, etc. ) . Inclusion criteria: Finally 5 539 subjects with complete data of two surveys entered into statistics. There were 5 237 normal individuals and 266 individuals with impaired glucose tolerance. And there were 3 177 males including 110 individuals with impaired glucose tolerance with an average age of(40 ± 12) years old, and 2 362 females including 156 individuals with impaired glucose tolerance with an average age of(41 ± 10) years old. Exclusion criterion: secondary diabetes.METHODS: Totally 5 539 subjects(including individuals with normal blood glucose or impaired glucose tolerance) who confirmed without diabetes in 1994 survey for diabetic morbidity in 2 unit communities of Liuzhou City Gugangxi Zhuang Autonomous Region received recheck in 1999 including blood glucose, body mass index(BMI), blood pressure and blood fat to analyze the impacts of each factor on diabetic morbidity.bidity among correlative risk factors.RESULTS: Totally 5 539 individuals were included into statistics. A totally of 46 of 5 237 normal individuals developed diabetes with the annual percent of conversion of 0.19%, while 50 of 226 individuals with impaired glucose tolerance developed diabetes with the annual percent of conversion of 3.84%, which had 20.9 times of correlative risk significantly higher than normal individuals(x2 = 1 063.1, P < 0. 000 1).CONCLUSION: The risk of diabetes is higher in individuals with impaired glucose tolerance than normal individuals. Age, BMI, hypertension, fasting blood glucose, blood glucose, and 1 hour blood glucose in Glucose tolerance test are risk factors of diabetic morbidity.

To study the changes in skeletal muscle structure and insulin resistance of low birth weight rats.The low birth weight filial rat model was established by feeding low protein diet to the pregnant rat during gestation.At 7 d,21 d,and 2 months,blood glucose and serum insulin were measured,and the structure of skeletal muscle was observed.From 7 d to 2 months,the muscle fibers of low birth weight rat were atrophic and arranged in disorder.The ultrastructure of skeletal muscle was also abnormal distinctly at 2 months.No differences of blood glucose and rerum insulin were found between the two groups.

Objective To investigate the optimal time for double balloon enteroscopy (DBE) in patients with obscure gastrointestinal bleeding (OGIB).Methods Data of 78 patients with OGIB who underwent DBE from January 2009 to November 2013 were retrospectively analyzed.They were classified into two groups:emergency DBE and non-emergency DBE.The demographic and clinical features and outcomes of DBE,the time of examination and complications were compared.Results The overall diagnostic yield of DBE was 48 lesions (61.54 ％).The overall diagnostic yield of emergency DBE group was 77.14％,which was significantly higher than that in non-emergency DBE group (48.83％) (P =0.019).The time of examination in emergency group was shorter than that of non-emergency group with significant difference (P =0.031).Conclusion Emergency DBE takes less time and yields a higher rate of detection.Patients withOGIB should receive DBE as soon as possible.

Purpose To explore the clinicopathologic characteristics, immunophenotype, diagnosis and differential diagnosis, molecu-lar genetic feature, treatments and prognosis of intra-abdominal EIMS. Methods Two cases of intra-abdominal EIMS were studied with clinical manifestations, histology and immunohistochemical staining, and its clinical and pathological findings were further ana-lyzed with review of the literature. Results Case 1 was a 15-year-olds male and case 2 was a 21-year-olds female both of whom pres-ented with abdominal pain. Two patients were treated by surgical excision. Microscopically the tumor consisted of two different histolog-ical types, one of which was of high cell density and the other with low cell density and myxoid stroma. Both of these areas contained inflammatory cells, mainly neutrophils with few lymphocytes and plasmocytes. Tumor cells had an epithelioid phenotype with round nu-clei and small nucleoli, various nuclear atypia and mitotic figures were also found, which consistented with the diagnosis of epithelioid inflammatory myofibroblastic sarcoma. Immunohistochemical analysis revealed that the tumor cells were positive for ALK, vimentin, desmin, and CK(AE1/AE3) (focal), and were negative for Calretinin, CD30, CD31, CD33, SMA, HHF35, Myogenin, S-100, HMB-45, CD20, CD79a, CD3, CD5, CD45 and CD68. ALK rearrangement was identified in both cases by FISH using ALK break-a-part probe. Conclusions As an extremely rare tumor, the distinguishing between epithelioid inflammatory myofibroblastic sarcoma and conventional inflammatory myofibroblastic tumor is important. ALK inhibitors are theoretically useful for treating these tumors.

Objective To evaluate the effects of combination of dexmedetomidine and mild hypothermia on global cerebral ischemia-reperfusion (I/R) injury in neonatal rats.Methods Ninety-six neonatal Sprague-Dawley rats,aged 6-7 days,weighing 18-22 g,were randomly divided into 4 groups (n=24 each) using a random number table:I/R group,mild hypothermia group (group H),dexmedetomidine group (group D) and combination of dexmedetomidine and mild hypothermia group (group DH).Global cerebral ischemia was induced in rats anaesthetized with chloral hydrate by bilateral common carotid artery clamping (for 15 min) combined with hypotension followed by reperfusion.Dexmedetomidine 75 pg/kg was given intraperitoneally at 30 min before ischemia in D and DH groups,while the equal volume of normal saline was given in I/R and H groups.The temperature in the temporal muscle was maintained at 36.7-37.2℃ in I/R and D groups,and at 34.8-35.3℃ in H and DH groups.At 12,24 and 72 h of reperfusion,8 rats were randomly chosen in each group,and neurological deficit score (NDS) was determined.The animals were then sacrificed,and their brains were removed for determination of myeloperoxidase (MPO) activity (by spectrophotometry) and contents of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) in brain tissues (using ELISA).Results Compared with I/R group,the NDS,MPO activity and contents of TNF-α and IL-6 were significantly decreased in the other three groups.The NDS,MPO activity and contents of TNF-α and IL-6 were significantly lower in DH group than in H or D group.Conclusion Dexmedetomidine can optimize cerebral protection providedby mild hypothermia against global cerebral I/R injury through inhibiting inflammatory responses in brain tissues of neonatal rats.