Objective To study the effect of magnetic field on serum activity of superoxide dismutase (SOD), content of malon-dialdehyde (MDA)and content of nitric oxide (NO)in patients undergoing operation for pituitary Tumor. Methods Sixteen ASA Ⅰor Ⅱ patients undergoing pituitary tumor surgery under general anesthesia were randomly divided into 2 groups (n=8 each): magnetic field group (M) and control group (C). Patients in magnetic field group were exposed in 150 mT magnetic field during the operation period.Blood samples were taken from radial artery for determination of serum SOD,MAD and NO before induction of anesthesia(T_0, baseline),after induction(T_1),70 min after induction(exposed in magnetic field for 60 min) (T_2)and 130 min after induction (exposed in magnetic field for 120 min) (T_3). Results There was no significant difference between the two groups in age, sex (M/F ratio),body weight,body height,duration of operation and duration of anaesthesia.The serum activity of SOD and content of NO were significantly higher at T_3 in group M than that in group C,and the serum content of MDA was lower at T_3 in group M than that in group C. Conclusions The magnetic field not only increases serum SOD activity and the content of NO in patient undergoing operation for pituitary tumor,but also reduces the content of MDA in them.

GPS was used in the snail survey of Nuanhuping marshland in Poyang Lake region and its application value was discussed. The results suggest that GPS which can measure the marshland area and survey area at real-time and draw electronic maps of snail situation rapidly, could realize the electronic and image management of the data from snail survey and provide more accurate information to the department in charge of schistosomiasis control.

Objective To investigate the prevalence and risk factors of metabolic syndrome (MS) in residents in Pudong New District of Shanghai. MethodsA total of 5 584 residents aged 20-80 years were randomly selected from Pudong New District of Shanghai through multistage sampling and interviewed from April to July of 2008. Metabolic syndrome was defined according to three diagnostic criteria for MS, issued by the modified National Cholesterol Education Program Adult Treatment Panel Ⅲ criteria ( NCEP-ATP Ⅲ ), International Diabetes Federation (IDF), and Chinese Diabetes Society (CDS). ResultsThe crude prevalences of MS in the adult population in Pudong New District were 18.2％ and 13.1％ standardized ( male 19. 1％, female 17.4％, the age-standardized 15.6％ and 13.2％ ) with CDS criterion, 31.8％ and 24.4％ standardized ( male 28.4％ ,female 35.1％ ,the agestandardized 22. 7％ and 25.0％ ) with NCEP-ATP Ⅲ criterion, and 21.7％ and 17.0％ standardized ( male 15.9％ ,female 26.7％, the age-standardized 13.8％ and 19.2％ ) with IDF criterion. The age-specific prevalence of MS increased according to three diagnostic criteria, and the age-adjusted prevalence was higher in males than females in junior age groups and higher in females than males in senior ones. Significant differences were present among region, education, marriage status, smoking, work intensity, recreation, and physical activity according to some diagnostic criteria. ConclusionsSubstantial proportions of adults in Pudong New District of Shanghai suffer from metabolic syndrome, and there exists a tendency for young people involved. MS has become a noteworthy public health problem. It suggests that community-integrated control strategy of MS should be made a priority.

Objective To investigate risk factors for the development of advanced schistosomiasis. Methods The case\|control study was designed with a match of 1∶1 and 1∶2. Healthy persons and chronic schistosomiasis patients were used as control. Each group was composed of 213 cases. Items investigated included: history of schistosomiasis and treatment, exposure to the contaminated water, social\|economical condition and nutritional status, other concomitant diseases. Cellular and humoral immunity, HBVMs and ABO blood groups were also detected. Statistical analysis was performed by 1∶1 and 1∶2 matched single and stepwise conditional logistic regression analysis with SAS software. Results By stepwise conditional logistic regression analysis, it was revealed that number of schistosomiasis examination(OR=1\^168-1\^311), interval from first infection to last treatment(OR=1\^142), interval from first infection to this investigation (OR=1\^089), \{HBsAg\++\}(OR=4\^683-10\^759), \{HBcAb\++\} (OR=2\^873), \{HBsAg\++\}+\{HBeAb\++\}+\{HBcAb\++\}(OR=7\^64) were risk factors of developing advanced schistosomiasis. The average living space and cellular immunity were lower in advanced schistosomiasis patients than others. No association was found between advanced schistosomiasis and ABO blood groups. Conclusion The development of advanced schistosomiasis is associated with repeated infections, and delayed or incomplete treatment. Combined infection with hepatitis B, poor socio\|economic conditions and impaired cellular immunity may increase the pathogenetic risk of schistosomiasis.

Objectives: To study the correlation between plasma matrix metalloproteinase 9(MMP 9) concentration and acute lung injury following cardiopulmonary bypass(CPB). Methods: Human plasma was obtained after informed consent from twenty patients undergoing CPB. Plasma was collected at the beginning of CPB, 5 minutes after the initiation of CPB, at the termination of CPB, 1 hour after the termination of CPB and 6 hours after the termination of CPB. All samples were analyzed by standard enzyme linked immunosorbent assay (ELISA). A aDO 2 and respiratory index (RI) was measured at the termination, 1 hour and 6 hours after termination of CPB. The cross clamp times, CPB times and the time to extubation was recorded. Data were expressed as means ?SE and assessed by analysis of variance (ANOVA).The regression analysis was utilized to define the correlations of variables measured( A aDO 2 ,RI, cross clamp times, CPB times and the time to extubation ) at the end of CPB. Results: Plasma MMP 9 concentration was significantly increased at the end of CPB (430.6?50)?g/L( P

Objective To explore the prevalence and epidemic characteristics of overweight, obesity, and central obesity in Shanghai Pudong New Area. Methods Multi-stage stratified random sampling method was conducted in Pudong New Area in 2013. Residents over 15 years old were randomly selected from 13 communities and participated in the cross-sectional study. A structured questionnaire was used to collect the information and physical examination, biochemical assays were also conducted. SPSS 20. 0 was used to analyze the results. Results The averagebodymassindexofparticipantswas(25.04±3.79)kg/m2andtheaveragewaistcircumferencewas(82.44± 9. 51) cm. The prevalences of overweight, obesity, and central obesity were 41. 67%, 17. 70%, and 31. 32%respectively. Standardized prevalences of overweight, obesity, and central obesity were 34. 39%, 16. 96%, and 25. 66% respectively, according to 2010 national age composition of population. Statistically significant sex differences were found among the prevalence of overweight, obesity, and central obesity groups(all P<0. 05). The prevalence of central obesity in female was raised by increasing age. Residents with hypertension, hyperglycemia, dyslipidemia, and metabolic disorders had higher prevalences in overweight, obesity, and central obesity ( all P<0. 05). Conclusion The prevalences of overweight, obesity, and central obesity among the residents in Shanghai Pudong New Area were relatively high. Relevant risk factors should be explored to promote health education that may enhance people′s awareness of weight management.

Objective To investigate the prevalence and risk factors of chronic kidney disease (CKD) in adult residents of Shanghai Pudong New Area. Methods A total of 5584 residents aged 20-80 years old were randomly selected from Shanghai Pudong New Area through multistage sampling and interview between April and July 2008. Fasting blood samples and morning urine samples were collected to detect Scr and urinary albumin and creatinine. Urine albumin to creatinine ratio (ACR) and glomerular filtration rate (GFR) was calculated to estimate the renal function. Logistic regression model was used to examine the associations of demographic and lifestyle factors with indicators of kidney damage. Results The age-standardized prevalence of albuminuria, reduced renal function and CKD was 9.9% (male 8.0%, female 12.4%), 1.1% (male 1.3%, female 0.9%) and 11.0%(male 8.8%, female 12.7%), respectively. The prevalence of CKD was higher in female and increased with age. No significant difference in the prevalence was observed between urban and rural areas. Elder, female, high blood pressure, high fasting glucose, dyslipidemia and obesity were associated with CKD independently. Conclusions The prevalence of CKD in Shanghai Pudong New Area is comparable to that previously reported in China or other developed countries, and even higher. CKD is going to be a public health problem and warrants the community-integrated control strategy to prevent the incidence of end-stage renal disease (ESRD) and related complications.

Objective: The present study aims to summarize the clinical experience in the surgical treatment of thoracic aortic dissecting aneurysm.Methods: We retrospectively analyzed the clinical data of 115 cases of thoracic aortic dissecting aneurysm treated by surgery from December 1995 to December 2006.Thirty-eight of them were DeBakey type I aortic dissection,18 type Ⅱ,and 59 type Ⅲ.Of the 38 DeBakey type I patients,30 underwent ascending aorta with total aortic arch replacement(2 cases of total thoracic aortic artificial vessel replacement,25 Wheat procedure and 3 aortic valvuloplasty) and the other 8 received ascending aorta with semi-aortic arch replacement.Of the 59 DeBakey type Ⅲ patients,36 underwent descending aortic aneurysm resection with artificial vessel replacement via left posterolateral thoracic incision by left heart bypass or aorta to artery bypass(using Cott tubes),while the other 23 received endovascular stent-graft exclusion in descending aorta via the femoral artery.Results: All the patients were successfully treated except 5 that died during the perioperative period.The survivors were followed up for 3-118 months,among whom 2 died long-term death after the operation and the others were living healthy.Conclusion: Surgical treatment improves the clinical outcome of thoracic aortic dissecting aneurysm.Bilateral perfusion via the carotid artery in aortic arch replacement has a definite cerebral protective effect.Surgical procedures can be simplified by using the modified elephant trunk technique.Endovascular stent-graft exclusion is safe and effective in the treatment of DeBakey type Ⅲ aortic dissection.

Objective To screen and prepare a broad-spectrum monoclonal antibody against Strep-tococcus pneumoniae ( S. pneumoniae) surface protein A ( PspA) and to evaluate its potential in clinical prac-tice. Methods Hybridoma cells were screened and inoculated into the abdominal cavities of BALB/c mice to prepare antibodies in ascites. Monoclonal antibodies were obtained by ammonium sulfate precipitation and protein A affinity chromatography and then identified by SDS-PAGE and Western blot. Their specificity, iso-forms and killing activities in vitro were analyzed. Results A broad-spectrum monoclonal antibody that rec-ognized PspA subclasses 2, 3 and 4 was obtained. Its in vitro killing rate against S. pneumoniae reached 40. 3％. Conclusions A broad-spectrum monoclonal antibody that could specifically bind to PspA was suc-cessfully prepared with a strong in vitro killing activity. This study provided reference for clinical diagnosis of S. pneumoniae-related diseases, quality assessment of S. pneumoniae vaccines and further research on mono-clonal antibody therapeutics.

Objective To study the compliance of forbidden depasturing livestock on the marshland with Oncomelania snails in schistosomiasis endemic areas. Methods According to 3 levels of human infection rates as > 10% ,5%-10% and <5% , 2 204 residents selected randomly from the schistosomiasis endemic villages were sampled with the stratified cluster sampling method in Hunan, Hubei, Jiangxi, Anhui, Jiangsu, Sichuan and Yunnan provinces, and investigated by questionnaire. The contents of the questionnaire included the recognition and implementation of forbidden depasturing livestock on marshland with Oncomelania snails and breeding livestock in bam. Results A total of 78.4% residents agreed forbidden depasturing livestock on marshland with snails, but 3. 7% residents disagreed it. A total of 83. 9% residents considered the relationship between breeding livestock in bam and schistosomiasis control, but 3. 1% residents thought that it was no relationship. The main reasons of depasturing livestock on marshland with Oncomelania snails were the high cost of breeding livestock in bam (36. 2% ) , unaccustomed (26.4% ) and no room for breeding livestock in bam (25.4% ). Conclusion Forbidden depasturing livestock on the marshland with Oncomelania snails should be strengthened according to the local economic, nature environment, agriculture, residents'culture degree and agriculture habit.