Objective To understand the status of health knowledge and behaviors on clonorchiasis sinensis of urban resi-dents in Yanqing District of Beijing City,China,so as to provide the targeted suggestions for further health education. Meth-ods The communities/streets were selected as the investigation sites by using the stratified randomly sampling method. A total of 283 residents were randomly selected and investigated with the structural questionnaire designed by Beijing Center for Dis-ease Control and Prevention. The fecal samples were collected and the eggs of Clonorchis sinensis were detected with Kato-Katz technique. Results All of the questionnaires were valid. The awareness rate about clonorchiasis was 25.09％. The rates of know-ing clonorchiasis infection route,harm and prevention measures were 10.60％,9.89％and 10.60％respectively. Totally 7.07％of the residents had the habits of eating raw or undercooked fresh water fish,and 2.47％of the residents had the behavior of eat-ing sashimi. C. sinensis eggs were not found among the research objects. Conclusions The awareness rate about clonorchiasis is low among urban residents in Yanqing District. The focus of the future work is to extensively carry out the health education about clonorchiasis prevention and control and take relevant interventions.

Objective To investigate the effects of cold preservation on the expression of GATA in intrahepatic bile duct.Methods The intrahepatic bile duct tissues of SD rats were obtained by collagenase perfusion combined with mechanical separation.After being cut into fragments,the intrahepatic bile duct tissues were cultured in rat tail collagen gel for 48 hours before experiment.All the rats were divided into the control group,cold preservation 1 hour (CP1 h) group and cold preservation 12 hours (CP12 h) group.There were 5 rats in each group.The mRNA and protein expressions of GATA were detected by Real-Time polymerase chain reaction and Western blot.Measurement data with normal distribution were presented as (x) ± s.Comparison among 3 groups was done by ANOVA and pairwise comparisons were done by LSD test.Results The mRNA expressions of GATA3,GATA4,GATA6 were detected,while the mRNA expressions of GATA1,GATA2 and GATA5 were undetectable in intrahepatic bile duct tissue of the control group.The mRNA expressions of GATA4 in the CP1 h group,CP12 h group and the control group were 0.72 ± 0.08,0.56 ± 0.07 and 0.96 ± 0.06,with significant difference among the 3 groups (F =38.981,P ＜0.05).The mRNA expression of GATA4 in the CP12 h group was significantly lower than that in the CP1 h group and the control group,and the mRNA expression of GATA4 in the CP1 h group was significantly lower than that in the control group (P ＜ 0.05).The mRNA expression of GATA6 in the CP1 h group,CP12 h group and the control group were 0.83 ± 0.07,0.68 ± 0.12 and 0.98 ± 0.12,with significant difference among the 3 groups (F =10.175,P ＜ 0.05).The mRNA expression of GATA6 in the CP12 group was significantly lower than that in the CP1 h group and the control group,and the mRNA expression of GATA6 in the CP1 h group was significantly lower than that in the control group (P ＜ 0.05).The mRNA expressions of GATA3 in the CP1 h group,CP12 h group and the control group were 0.92 ± 0.06,0.89 ± 0.05 and 0.98 ± 0.11,with no significant difference among the 3 groups (F =1.674,P ＞ 0.05).The protein expressions of GATA4 in the CP1 h group,CP12 h group and the control group were 0.78 ± 0.07,0.64 ± 0.06 and 0.99 ± 0.10,with significant difference among the 3 groups (F =24.211,P ＜ 0.05).The protein expression of GATA4 in the CP12 h group was significantly lower than that in the CP1 h group and the control group,and the protein expression of GATA4 in the CP1 h group was significantly lower than that in the control group (P ＜ 0.05).The protein expressions of GATA6 in the CP1 h group,CP12 h group and the control group were 0.90 ± 0.04,0.75 ±0.06 and 0.98 ±0.11,with significant difference among the 3 groups (F=11.651,P＜0.05).The protein expression of GATA6 in the CP12 h group was significantly lower than that in the CP1 h group and the control group (P ＜ 0.05).Conclusion The expressions of GATA4 and GATA6 in the intrahepatic bile duct tissues are decreased significantly after cold preservation,which indicate that GATA4 and GATA6 might be involved in the pathophysiological process of the bile duct after cold preservation.

Objective To investigate the expression of Muc1,Muc3A and Muc4 in cultured intrahepatic bile duct(IBD)tissues from different hepatic segments after cold preservation.Methods The IBD tissues of SD rats were obtained by collagen perfusion combining mechanical separation and then were divided into large and small IBD.The 2 parts of IBD were seeded in rat tail collagen gel and were cultured for 48 hours,then the IBD tissues from 10 rats were stored in UW solution at 4℃ for 1 hour(group I,n=5)and 12 hours(group Ⅱ,n=5),respectively,and the IBD tissues from the rest 5 rats were cultured in incubator at 37℃ for 24 hours (control group,n=5).The expressions of Muc1,Muc3A and Muc4 were detected by RT-PCR and Western blot.All data were analysed via ANOVA or LSD test.Results The expressions of Muc1,Muc3 A and Muc4 were detected both in large and small IBD tissues.The mRNA expressions of Muc1,Muc3A and Muc4 were decreased in large IBD as time passed by,which were 0.95±0.14,0.26±0.04 and 0.24±0.06 in group Ⅰ,0.18±0.03,0.14±0.04 and 0.22±0.07 in group Ⅱ,1.00±0.20,1.00±0.09 and 1.00±0.21 in control group,with significant difference among the 3 groups(F=8.8,57.1,10.8,P＜0.05).The mRNA expressions of Muc1 and Muc3A in group Ⅱ were significantly lower than in group Ⅰ(P＜0.05).The protein expressions of Muc1 and Mue3A in large IBD were also decreased as time passed by,which were 0.82±0.13,0.73±0.10 in group Ⅰ,0.56±0.11,0.33±0.04 in group Ⅱ,1.05±0.41,1.06±0.38 in control group,with significant difference among the 3 groups(F=3.9,12.6,P＜0.05).The protein expression of Muc1 of group Ⅱ was significantly lower than in control group(P＜0.05),and the protein expression of Muc4 in group Ⅱ was significantly lower than in group Ⅰ(P＜0.05).The mRNA expressions of Muc3A in small IBD were increased as time passed by,which were 0.15±0.04 in group Ⅰ,0.19±0.05 in group Ⅱ and 0.06±0.03 in control group.Conclusion Decreases of Muc1,Muc3A and Muc4 in IBD after long time cold preservation may weaken the selfprotection of biliary epithelium and case sever injury to bile duct.

Objective To evaluate the efficacy of intravenous recombinant human brain natriuretic peptide in acute anterior myocardial infarction complicated with heart failure.Methods Two hundred patients suffered from acute anterior myocardial infarction complicated with heart failure were randomly divided into two groups:rhBNP group ( n =100) and control group ( n =100 ).All patients were given conventional treatment,patients in rhBNP group were given rhBNP on the basis of conventional therapy.The clinical effectiveness including the improvement of cardiac function,cardiac ultrasound data,the incidence of hospital adverse cardiac events,and six month follow-up were compared between the two groups.Results The degree of decompensation and Killip class in rhBNP group were better than those of control group after treatment ( improved dyspnea:significantly improved:36 vs 27 ; improved:49 vs 46; no improvement:11 vs 20 ; deterioration:4 vs 7 ; Ridit value:0.4618 vs 0.5382,P =0.043) ( Killip class:significantly improved:26 vs 20; improved:56 vs 45; no improvement:14 vs 25 ; deterioration:4 vs 10; Ridit value:0.4553 vs 0.5447,P =0.017 ).After treatment for one week,The LVEF improvement in rhBNP group was more remarkable than that of control group ( [ 53.0 ± 5.2 ] ％vs.[ 50.0 ±:6.2 ] ％,P =0.014).The occurrence rate of angina ( 13.0％ vs.27.0％,P =0.013 ),heart failure ( 18.0％ vs.32.0％,P =0.022) and major adverse cardiac events(MACE) ( 17.0％ vs.30.0％,P =0.030) inrhBNP group was lower than that in control group.During 6 months follow-up period,event-free survival in rhBNP group was higher than that in control group ( 69.0％ vs.55.0％,P =0.041 ).Conclusion Transvenous injection of rhBNP combined with other routine treatment can improve cardiac function in patients with myocardial infarction in acute anterior myocardial infarction.It can also decrease adverse cardiac events during hospitalization and increase event-free survival in 6 months follow-up period.

ObjectiveTo investigate the efficacy of laparoscopic hepatectomy for regional hepatolithiasis.MethodsThe clinical data of 81 patients with regional hepatolithiasis who received laparoscopic hepatectomy at the Southwest Hospital from March 2007 to March 2011 were retrospectively analyzed.Based on the classification of the Guideline for the diagnosis and treatment of hepatolithiasis 2007 version and indications for open surgery,hepatic lobes with calculi,biliary stricture or dilated bile ducts were resected laparoscopically after preoperative examination.Bile ducts of the remnant hepatic lobes were explored using fiber choledochoscope or electronic choledochoscope for the prevention of residual stones. Results Laparoscopic hepatectomy was successfully performed on 72 patients,and the other 9 patients were converted to open surgery. Left lateral lobectomy ( segments Ⅱ,Ⅲ ) was performed on 20 patients,left hemihepatectomy ( segments Ⅱ,Ⅲ,Ⅳ ) on 30 patients,right posterior lobectomy ( segments Ⅵ,Ⅶ ) on 11 patients,right anterior lobectomy ( segments Ⅴ,Ⅷ ) on 6patients,right hemihepateetomy (segments Ⅴ,Ⅵ,Ⅶ,Ⅷ ) on 9 patients,hepatic Ⅲ segmentectomy on 2 patients and hepatic Ⅵ segmentectomy on 3 patients.Gallbladders were resected,and intermittent portal triad clamping was performed on 15 patients.Hepateetomy combined with biliary exploration and stone removal was performed on 57 patients.The mean operation time and operative blood loss were (328 ± 80)minutes and (451 ±288) ml,respectively.No operative mortality was observed.Sixteen patients had postoperative complications,including pulmonary infection in 2 patients,pleural effusion in 4 patients,encapsulated effusion in the resection margin in 6 patients,abdominal infection and abscess in 2 patients and wound infection in 2 patients.Of the 16patients with complications,9 were cured by medicine,6 by pleural or abdominal drainage and 1 by wound debridement.The mean duration of hospital stay was ( 13 + 6)days.The intraoperative stone clearance rate was 96％ (69/72),and the residual stone in 3 patients were removed by choledochoscopy.Sixty-nine patients were followed up for 7-55 months,7 patients had symptoms of cholangitis and 2 patients had common bile duct stone recurrence.ConclusionsLaparoscopie hepatectomy is sate and effective for regional hepatolithiasis.Accurate positioning of the stones and lesions pre- and intra-operatively,reasonable designing of the parenchymal transection plane,and anatomical liver resection are the key points for achiving good therapeutic effects.

Objective To evaluate the improvement effect of levosimendan by vein injection on short term cardiac function of patients with decompensated heart failure.Methods One hundred and sixty patients admitted due to heart failure were randomly divided into levosimendan group and control group (80 subjects for each group).Patients in control group were given a regular therapy including diuretics,vasodilators (including the recombinant human brain natriuretic peptide),angiotensin converting enzyme inhibitor(ACEI) or angiotensin Ⅱ receptorantagonists(ARB),β blockers,spironolactone and stain.Patients in levosimendan were administered levosimendan for 24 hours plus regular therapy.The improvements of dyspnoea in 9 days and cardiac function classification in 30 days after therapy were assessed.Mortality of 1 month and 3 month in two group were calculated and compared during follow-up.Results The dyspnoea improvement rate was superior than that of control group during 9 days (OR =1.956,95％ CI:1.156-3.310,P =0.013).The improvements in the levosimendan group were better than in the control group at 1 st day (OR =2.261,95 ％ CI:1.280-3.999,P =0.005),at 3rd (OR =2.002,95 ％ CI:1.111-3.607,P =0.021) and 5th day (OR =1.846,95 ％ CI:1.009 -3.377,P =0.047).However,there was no significant difference in term of improving dyspnoea between the levosimendan group and the control group at 9th day (P =0.126).Similarly,the improvement of cardiac function classification in the levosimendan group was superior than the control group during 30 days (OR =1.933,95％ CI:1.229-3.040,P =0.004).Although no significant difference was seen regarding of improving cardiac function classification between the two groups at 30th day after treatment (P =0.115),the improvements in the levosimendan group were better than in the control group at 3rd (OR =1.986,95％ CI:1.195-3.300,P =0.008),5th (OR =2.268,95 ％ CI:1.329-3.873,P =0.003),9th (OR =2.627,95 ％ CI:1.419-4.860,P =0.002) and 14th day(OR =2.212,95％ CI:1.189-4.112,P =0.012).Moreover,there was a nonsignificant reduction in terms of mortality in levosimendan group during 1-month and 3-month follow-up compared with control group (P ＞ 0.05).Condusion Levosimendan can effectively improve the short-term cardiac function in patients with decompensated heart failure.

Objective To evaluate the short-term clinical efficacy and safety of administration of levosimendan or milrinone added to conventional therapy in patients with decompensated heart failure.Methods A total of 180 patients admitted due to heart failure [NYHA (New York Heart Association) class Ⅲ or Ⅳ] were randomly (random number) divided into control group,milrinone group and levosimendan group (n =60,each group).A continuous infusion of milrinone added to conventional therapy was administered for 72 hours in milrinone group,while administration of levosimendan for 24 hours in levosimendan group.The changes in left ventricular ejection fraction (LVEF),left ventricle end-diastolic diameter (LVDD) and B-type natriuretic peptide (BNP) plasma level were compared between before and after treatment,respectively,and comparisons of improvement in cardiac function (NYHA class) and hospital mortality were carried out among three groups.Patients were further followed up at 3 months after treatment.Results The LVEF in levosimendan group after treatment had significantly more increased than that in control group [(32.0±6.3)％ vs.(30.6 ±5.5)％,P =0.007].Compared BNP before treatment,the sums of BNP deducted were 444.0 (-74.0,1068.0) pg/mL,469.0 (141.5,1151.5) pg/mL and 936.5 (437.8,1566.8) pg/mL in control group,milrinone group and levosimendan group,respectively after treatment (all P ＜ 0.01).Moreover,the deduction in BNP was more dramatic in levosimendan group compared with control or milrinone group (t =3.256 or 2.665,P =0.004 or 0.026).After treatment for 5 days,the probability at least of achieving more effectively better improvement in NYHA class (cardiac function) in levosimendan group was 2.036 times that of control group (95％ CI:1.030-4.028,P =0.041).The incidence of combined end point events (death or readmission) in levosimendan group was significantly lower than that in milrinone group (50％ vs.70％,HR =0.573,95％ CI:0.358-0.917,P=0.020),while in hospital mortality,readmission or 3-month mortality incidence was similar among 3 groups (P ＞ 0.05).Conclusions The short-term clinical efficacy of levosimendan is superior to that of milrinone or conventional therapy in patients with decompensated heart failure.

Objective To investigate the short-term clinical efficacy of levosimendan on treating patients with decompensated cardiac insufficiency.Methods One hundred and twenty patients with heart failure (NYHA Ⅲ-Ⅳ or Killip Ⅲ) were randomly divided into levosimendan group(n =60) and control group(n =60).The patients in levosimendan group were given intravenous levosimendan for 24 hours beside conventional heart failure medications.The patients in control group were given the conventional heart failure medications.The left ventricular ejection fraction (LVEF) was recorded and B-type natriuretic peptide (BNP) were measured before and after treatment.NYHA grade and mortality also were recorded.All patients were followed up for 3 months.Results The LVEF in the levosimendan group after the treatment was (35.6 ± 13.3)％,significantly higher than that in the control group ((31.4 ± 6.7) ％,F =8.952,P =0.002).The BNP in two groups after treatment were lower compared with before treatment(P ＜0.05).And it was more remarkable after treatment in levosimendan group compared with control group (441.0 (212.5,1050.0) ng/L vs.870.0 (435.0,1267.0) ng/L,P =0.014).The change of NYHA grade in levosimendan group was better than that in control group after 5 d.The recovery rate and ineffective or deterioration rate in levosimendan group were 45.0％ (27/60),26.7％ (16/30) and 43.3％ (26/60) respectively,higher than that of control group (28.3％ (17/60),20.0％ (12/60),36.7％ (22/60)) (OR =2.280,95％ CI 1.163-4.468,P =0.016).There was no significant difference in term of mortality between in hospital and 3 months follow-up in the levosimendan and the control group (20％ (12/60) vs.25％ (15/60),28.3％ (17/30) vs.41.7％ (25/60),x2 =1.543,P =0.214 and x2 =2.590,P =0.108).There was a decreasing trend regarding of readmission rate during 3 months in levosimendan group compared with that of the control group (21.7％ (13/60) vs.33.3％ (20/60),x2 =3.591,P =0.058),but mortality or readmission rate was lower than that in the control group (46.7 ％ (28/60)vs.66.7％ (40/60),x2 =4.835,P =0.028).Conclusion The short-term clinical efficacy of levosimendan on treating patients with decompensated cardiac insufficiency is remarkable better than the traditional treatment.

OBJECTIVE: To compare the effect on CYP450 isoenzyme in rats with acute liver injury induced by different chemicals. METHODS: Acute liver injury model of rats induced by tetrachloromethane(CCl4), D-aminogalactose(D-GalN)/lipopolysaccharide(LPS), α-naphthyl isothiocyanate(ANIT) respectively whereas the normal Wistar rats were used as controls. After the tail vein injection with Cocktail probe solutions prepared with five CYP450s probe substrates (phenacetin-CYP1A2, omeprazole-CYP2C9, tolbutamide-CYP2C19, dextromethorphan-CYP2D6, midazolam-CYP3A4), the blood samples were collected from the fundus venous plexus of rat at different time point, the blood drug concentration of the five probe substrates were determined by LC-MS/MS, and the pharmacokinetic parameters were calculated by PK Solutions 2™. Compared with normal rats, the changes of the probe drug pharmacokinetics in different rat models were used as the basis for the evaluation of the metabolic activity of CYP450 isoenzyme. RESULTS: Compared with normal rats, the activities of CYP1A2, CYP2C9, CYP2C19, CYP2D6 of CCl4 group rats were significantly inhibited, and the activities of CYP3A4 was slightly inhibited; the activities of CYP2C9, CYP2D6 and CYP3A4 of D-GalN/LPS group rats were significantly induced, and the activity of CYP2D6 and CYP3A4 was slightly induced, and the activity of CYP1A2 was not significantly affected, but the activity of CYP2C19 was significantly inhibited; the activities of CYP2C9, CYP2C19 and CYP3A4 of ANIT group rats were significantly induced, the activity of CYP3A4 were slightly induced, and the activity of CYP2D6 was not significantly affected, but the activity of CYP1A2 was significantly inhibited. CONCLUSION: There are significant differences in the activities of CYP450 isoenzyme in the rat model of acute liver injury induced by different chemicals.

Objective To study the resistance and molecular profiles of Staphylococcus aureus strains isolated from the clinical specimens.Methods Antimicrobial susceptibility was tested with 56 strains of Staphylococcus aureus isolated from a hospital from May to November 2011.The mecA and pvl genes were detected.The spa genetic types were analyzed.Results A total of 21 (37.5%)Staphylococcus aureus strains were resistant to methicillin (MRSA)and 35 (62.5%)were sensitive to methicillin (MSSA).Nineteen of the 21 (90.5%)MRSA strains carried mecA gene.Compared with MSSA,MRSA were much less sen-sitive to rifampin,fluoroqunolones,tetracycline and gentamicin (P <0.05).All the MRSA isolates were susceptible to vanco-mycin,linezolid,tigecycline,quinupristin-dalfopristin and nitrofurantoin.Six spa types were identified among the MRSA strains.Type t030 was the most prevalent,accounting for 66.7% (14/21)of all the MRSA strains.MRSA-t030 and MRSA-t002 were resistant to multiple antibiotics.Eighteen spa types were identified among the MSSA strains.Type t189,t377 and t034 were the top three spa types of MSSA,accounting for 14.3%,14.3% and 11.4%,respectively.A new MSSA spa typ-ing strain new1 was isolated from pus.There were five Panton-Valentine leukocidin (PVL)-positive isolates,3 of which was MSSA-t189 type. Conclusions Type t030 is the most prevalent spa type among clinical MRSA strains,which is resistant to many kinds of antibiotics and widely spreads in the hospital setting.There are many different spa types a-mong the MSSA strains.Type t389,t377 and t034 are the top three spa types of MSSA.