Glycerol enema, mainly composed of glycerol, sorbitol, and magnesium sulfate, was a kind of OCT caccagogue. The application of convenience, low prices made it used widely in patients with constipation. However, if the drug should not follow the indications and application of Methods , a series of improper consequences will be caused. The authors reviewed the application of Glycerol Enema, rectal injury and rectal ulcer in patients with constipation.

OBJECTIVE To survey hepatitis B virus(HBV) contamination on hands of laboratory staffs and to evaluate the protection efficacy against HBV infection by wearing gloves.METHODS Samples from used gloves and gloves-protected hands were carried out according to the methods stipulated in the Technical Guidelines for Disinfection.All samples were divided into 3 groups:gloves worn for 1h,gloves worn for 3h and gloves-protected hands,each group had 202 cases.To detect HBsAg and HBV DNA by microparticle enzyme immunoassay(MEIA) and fluorescence quantitative polymerase chain reaction(FQ-PCR),respectively.RESULTS HBsAg polluted rates of gloves worn for 1h,gloves worn for 3h and gloves-protected hands were 22.77%,34.65% and 2.48%,respectively;HBV DNA polluted rates of gloves worn for 1h,gloves worn for 3h and gloves-protected hands were 27.72%,41.58% and 2.48%,respectively.The HBsAg and HBV DNA polluted rates of gloves worn for 3h were higher than those of gloves worn for 1h,the difference was significant between them(P

Objective To evaluate the role of nuclear factor erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) singling pathway in reduction of myocardial ischemia-reperfusion (I/R) injury by zinc sulfate preconditioning in rats.Methods SPF healthy male Sprague-Dawley rats,weighing 250-280 g,aged 16-20 weeks,were used in this study.After the animals were anesthetized,their hearts were immediately removed and retrogradely perfused with an oxygenated K-H solution at 37 ℃ in a Langendorff apparatus.Forty isolated rat hearts were randomly divided into 4 groups (n=10 each):control group (group C),I/R group,zinc sulfate preconditioning group (group Zn) and zinc sulfate preconditioning plus Nrf2/ARE singling pathway blocker luteolin group (group Zn+Lut).After 20 min of equilibration,the hearts were continuously perfused for 100 min in group C,the hearts were perfused with 4 ℃ St.Thomas′ cardioplegic solution before ischemia and then subjected to 40 min global ischemia followed by 60 min reperfusion to establish the model of I/R in group I/R,200 μmol/L zinc sulfate 1.5 ml/kg was injected intraperitoneally,and 24 h later the model of I/R was established in group Zn,and in group Zn+Lut,the hearts were perfused for 3 min with K-H solution containing luteolin 50 μmol/L starting from the time point immediately before ischemia,and the other treatments were similar to those previously described in group Zn.Heart rate (HR),left ventricular end diabetic pressure (LVEDP),left ventricular developed pressure (LVDP) and the maximum rate of increase of left ventricular pressure (+dp/dtmax) were recorded at the end of equilibration and reperfusion.Coronary effluent was collected at the end of reperfusion to measure the levels of lactate dehydrogenase (LDH) and malondialdehyde (MDA).The expression of heme oxygenase-1 (HO-1),quinone oxidoreductase (NQO1),superoxide dismutase 1 (SOD1) and Nrf2 in myocardial tissues was detected by Western blot.Results Compared with group C,HR,+dp/dtmax and LVDP were significantly decreased,LVEDP was increased,and the levels of LDH and MDA in coronary effluent were increased at the end of reperfusion in I/R and Zn+Lut groups,and the expression of NQO1,HO-1,Nrf2 and SOD1 was up-regulated in I/R,Zn and Zn+Lut groups (P<0.05).Compared with group I/R,the HR,+dp/dtmax and LVDP were significantly increased,LVEDP was decreased,and the levels of LDH and MDA in coronary effluent were decreased at the end of reperfusion,and the expression of NQO1,HO-1,Nrf2 and SOD1 was up-regulated in group Zn (P<0.05).Compared with group Zn,HR,+dp/dtmax and LVDP were significantly decreased,LVEDP was increased,and the levels of LDH and MDA in coronary effluent were increased at the end of reperfusion,and the expression of NQO1,HO-1 and SOD1 was down-regulated(P<0.05),and no significant change was found in Nrf2 expression in group Zn+Lut (P>0.05).Conclusion The mechanism by which zinc sulfate preconditioning reduces myocardial I/R injury is related to activation of Nrf2/ARE singling pathway in rats.

Objective To investigate the efficacy of proton pump inhibitors (PPI) combined with flupethixol melitracen in the treatment of non-erosive gastroesophageal reflux disease (NERD) with anxiety and depression.Methods Fifty six NERD patients with anxiety and depression were evenly divided into the positive treatment group and positive control group.Thirty NERD patients without anxiety and depression were set as negative control group.Both flupethixol melitracen (20 mg per day after breakfast) and PPI esomeprazole magnesium (20 mg per day,20 minutes before breakfast) were administrated in positive treatment group.Only esomeprazole magnesium was given in positive control group and negative control group and the dosage was same as that of positive treatment group.The treatment course of three groups was eight weeks.Before and after the treatment,the symptoms of patients were scored according to gastroesophageal reflux disease questionnaire (GERDQ),Hamilton anxiety scale (HAMA),Hamilton depression scale (HAMD) and Pittsburgh sleep quality index (PSQI).Adverse effects were also observed.Variance analysis was performed for the comparison among three groups.Variance analysis or Post-hoc analysis were used for comparison between two groups.Results The differences of different score value before and after treatment of three groups were statistically significant in total score of GERD Q,score of type A,score of type C,score of HAMA,score of HAMD and PSQI (F=6.32,3.93,5.63,49.61,78.69 and 7.07,all P＜ 0.05).The differences of the score value before and after treatment of positive treatment group in total score of GERD Q,score of type A,score of type C,score of HAMA,score of HAMD and PSQI (4.24±2.05,3.16±1.46,1(0,3),9.32±3.21 and 8.88±2.92) were all higher than those of positive control group (2.38±2.22,1.68±1.33,0(0,2),3.72±2.95 and 3.84±1.97) and negative control group (2.32±2.18,2.48±1.34,0(0,1),2.36±1.25 and 2.36±0.79).And the differences were statistically significant (positive treatment group vs positive control group:Post-hoc analysis,P=0.002,0.022,0.003,0.002 and 0.002; positive treatment group vs negative control group:Post-hoc analysis,P=0.001,0.021,0.004,0.001 and 0.001).The difference of the score value before and after treatment of positive treatment group in PSQI (4 (2,6)) was higher than that of negative control group (2 (1,3),Post-hoc analysis,P=0.001).Two cases of positive treatment group had mild dizziness and the symptom relieved after three to four days.Conclusions For NERD patients with anxiety and depression,anti-depression drug flupenthixol melitracen can be used and the effect is superior to using PPI alone.

Objective To assess the advantages of multi-source RF transmission(MT) for balanced fast field echo(BFFE) cardiac cine imaging.Methods Fifteen volunteers were scanned on a clinical 3.0 T MR system equipped with MT.Acquisition of B1 maps with and without MT were followed by axial and four chambers BFFE cine imaging for all subjects with different transmission modes[single source RF transmission (ST),MT and MT with allowable shortest TR(MTS)].The B1 field uniformity and contrast to noise ratio (CNR) were quantitatively analyzed.The B1 field uniformity was evaluated by the pixel values within the ROI and was compared with Student t test.CNR was defined as follows:(SIblood-SImyocardium)/ 0.5 ×(SDblood + SDmyocardium).CNR were tested with one-way ANOVA for three groups comparision and with LSD for inter-group comparison.Image qualities were blindly assessed by 2 readers with a 4-score scale.Global image quality scores were tested for statistical significance by using the nonparametric paired sample Friedman rank test for three groups and the Wilcoxon signed rank test for further inter-group comparison.The Kappa statistics was used to assess interreader agreement.Results B1 homogeneity was significantly improved for images with MT compared with ST under the condition of other parameters unchanged (t =21.632,P ＜0.01).In left ventricular,CNR of blood and myocardium was improved from 10.8 ±2.2 for ST to 14.4 ± 2.4 for MT and 14.1 ± 2.2 for MTS.In fight ventricular,it was improved from 7.7 ± 1.2 for ST to 12.2 ± 1.4 for MT and 12.0 ± 1.2 for MTS.The differences were statistically significant (F =11.617,61.472,P ＜0.01).The images of MT and MTS groups demonstrated greater CNR versus the ST images.There was no statistical difference between latter two groups.The image scores of Reader 1 and 2 were 4.60 ± 1.18 and 4.73 ± 1.10 for ST,6.53 ± 1.19 and 6.67 ± 1.29 for MT and 6.73 ± 1.03 and 6.73 ± 0.88 for MTS respectively.There were statistically differences among three groups (x2 =23.577,24.275,P ＜ 0.01).The image quality was improved on BFFE images using MT and MTS technology compared to ST technology,and there were also significant differences.The interreader agreement between two readers was good [K=0.643,0.722 and 0.814(P ＜0.05) for ST,MT,and MTS group respectively].Conclusions MT technology significantly improves B1 field uniformity,increases CNR and reduces artifact on BFFE cardiac cine images.The TR is decreased within the normal SAR ranges,and thus scanning speed is increased.

Objective To evaluate the feasibility of methylene blue as a method in lymphatic mapping and the effect factors of SLNB identification rate. Methods The results of SLNB in 276 patients with clinical stage T-T2N0M0 breast eaneer were analyzed to evaluate the effect factors of identification rate and false-neg-ative rate of SLNB. Results The identification of SLN was carried out using methylene blne . When the mapping time of SLN and lymphatic were controlled in 20～30 minutes, the SLN could be visualized easily. SLN was successfully identified in 246 of 276 patients (89.1%) ,423 SLNs were retrieved(1～4). The SLN accurately predicted the status of the axilla in 226 of 246 patients (77.3%) yielding a FNR(false negative rate)of 8.1% (20/246) ,false positive rate of0, and an accuracy of 91.9% (226/241). For the identified rate of SLN, the clinical stage of T2N0M0 disease was higher than the clinical stage of T1N0M0 disease (P=0.046,P<0.05), Upper outer quadrant and lower outer quadrant were higher than other evidently (P<0.0010). SLNs were easily retrieved in those cases aged above 50 years than below 50 years (P<0.001).In the view of false-negative rate of SLNB, the FNR rate in patients of 50 years old was less than older ones (P=0.037, P<0.05). No significant correlation was found between the stage of TMN, the expression of ER and PR, histologic status and FNR. Conclusion When SLNB was performed using methylene blue, we found age, clinical stage of TMN, the location of tumor had relationship with the identified rate of SLN. Ag-ing and location of tumor may adversely affect FNR of SLNB.

Objective To establish and improve the acute hepatic failure model in pigs induced with D-galactosamine (D-gal),and explore the feasibility of evaluating preclinical artificial liver devices.Methods Nineteen Duroc breeding pigs were divided into 4 groups.Fifteen unanesthetic Duroc breeding pigs out of 19 (5 of each group) received intravenously administration of D-gal at a dose of 1.0,1.25 and 1.5 g/kg body weight,respectively.The remaining 4 pigs which received the same volume of 5% dextrose in water served as controls. Clinical data and survival time of pigs were recorded.Blood samples were collected for dynamic testing of plasma ammonia,prothrombin time,liver and renal functions,blood glucose and L-lactate;liver tissues were sampled for pathological examination.The differences between groups were compared using t test and F test.The survival time of pigs was compared by Kaplan-Meier survival analysis and Log Rank test.Results Twelve hours after administration of D-gal,all pigs presented as acute hepatic failure characterized by progressive increases of levels of plasma ammonia,aspartate aminotransferase (AST),total bilirubin (TBil) and L-lactate,the level of blood glucose marked decreased and prothrombin time prolonged (F= 32.33,F=27.817,F=50.097,F=88.382,F=8.211,F=21.227;all P＜0.01);especially in the pigs which received D-gal at a dose of 1.5 g/kg.Except 2 pigs survived for 168 h,the other 3 pigs which received D-gal at a dose of 1.0 g/kg died within 68-84 h,while all pigs which received D-gal at a dose of 1.25 and 1.5 g/kg died within 33-89 h and 23-47 h,respectively.All pigs presented coma before death and liver histopathological examination indicated massive hepatic necrosis with severe hemorrhage.Conclusions D-gal induced acute hepatic failure model in unanesthetic Duroc breeding pig appears potential reversibility and high reproducibility,which has proper therapeutic window.Thus,this model could be applied to evaluate the therapeutic effects and safety of artificial liver devices.

Objective To evaluate the role of nuclear factor erythroid 2-related factor 2 (Nrf2)/ antioxidant response element (ARE) signaling pathway in reduction of myocardial ischemia-reperfusion (I/R) injury by ischemic preconditioning in the rats.Methods Healthy male Sprague-Dawley rats,weighing 250-300 g,aged 4-6 months,were used in the study.Their hearts were excised,and retrogradely perfused with K-H solution at 37 ℃ in a Langendorff apparatus.Forty isolated hearts were randomly divided into 4 groups (n=10 each) using a random number table:control group (group C),I/R group,ischemic preconditioning group (group IPC),and ischemic preconditioning +Nrf2/ARE signaling pathway blocker luteolin group (group IPC+L).After 20 min of equilibration,the hearts were continuously perfused for 100 min in group C.After 20 min of equilibration,the hearts were subjected to 40 min ischemia at 32 ℃ followed by 60 min of reperfusion in group I/R.In group IPC,ischemic preconditioning was induced by 6 cycles of 10 s ischemia followed by 10 s reperfusion starting from the time point immediately after 20 min of equilibration,and then the hearts were subjected to 40 min ischemia at 32 ℃ followed by 58 min of reperfusion.In group IPC+L,after 20 min of equilibration,the hearts were perfused with K-H solution containing lueolin 50 μmol/L for 3 min before ischemia,and the other treatments were similar to those previously described in group IPC.Left ventricular developed pressure (LVDP),left ventricular end-diastolic pressure (LVDEP),heart rate (HR),and the maximum rate of increase of left ventricular pressure (+dp/dtmax) were recorded at the end of equilibration and reperfusion.At the end of reperfusion,left ventricular myocardial tissues were obtained for examination of the ultrastructure of myocardial cells and for determination of the expression of Nrf2,heme oxygenase-1 (HO-1),quinone oxidoreductase 1 (NQO1),and superoxide dismutase 1 (SOD1) mRNA and protein (by real-time polymerase chain reaction and Western blot,respectively).Results Compared with group C,the HR,+ dp/dtmax and LVDP were significantly decreased,and LVEDP was significantly increased at the end of reperfusion in I/R and IPC+L groups,and the expression of Nrf2,HO-1,NQO1 and SOD1 mRNA and protein was significantly up-regulated in I/R,IPC and IPC+L groups (P＜0.05).Compared with group I/R,the HR,+dp/dtmax and LVDP were significantly increased,and LVEDP was significantly decreased at the end of reperfusion,the expression of Nrf2,HO-1,NQO1 and SOD1 mRNA and protein was significantly up-regulated (P＜0.05),and the pathological changes were significantly attenuated in group IPC,and no significant change was found in the parameters mentioned above in group IPC+L (P＞0.05).Compared with group IPC,the HR,+dp/dt and LVDP were significantly decreased,and LVEDP was significantly increased at the end of reperfusion,and the expression of HO-1,NQO1,SOD1 mRNA and protein was significantly down-regulated (P＜ 0.05),no significant change was found in Nrf2 mRNA and protein expression (P＞0.05),and the pathological changes were significantly aggravated in group IPC + L.Conclusion Ischemic preconditioning reduces myocardial I/R injury through activating Nrf2/ARE signaling pathway in the rats.

Objective To assess the changes of humidity and ammonia concentration in rat and mouse individually ventilated cages (IVC) based on macroenvironmental humidity and air ventilation changes .Methods Three kinds of rat and mouse IVC in barrier facilities were set as research objective .The changes of micronvironmental humidity and ammonia concentration at 40 times/h and 60 times /h air changes were detected continuously for a 7-days-cycle relative to low (40%), moderate (50%), and high (60%) macroenvironmental humidity.Results Mouse and rat IVC with 40 times /h air changes under low macroenvironmental humidity condition , mouse IVC with 40 times/h and rat IVC with 60 times/h air changes under moderate macroenvironmental humidity condition , mouse IVC with 60 times /h air changes under high macroenvironmental humidity condition , basically meet the GB14925-2010 requirements.While under macroenvironmental high humidity condition, the microenvironments of rat and mouse IVC with 60 times/h air changes could not satisfy the requirements.Conclusions The environmental humidity and ventilation frequency are the key index of IVC microenvironment.Only on the basis of external environment conditions to set up reasonable IVC ventilation frequency in order to better maintain the IVC microenvironment so that to achieve the goal of effective management .

Objective To define dynamic changes of viral loads and antibody responses in ICR mice naturally infected with hepatitis virus in an MHV contaminative facility .Method A total 50 ICR were housed by different “dirty bedding” exposure.Antigen and antibody was detected after 2,4,8,14,21,28,35,42,56 and 84 days.Result Mouse hepatitis virus (MHV) was detected in lung after 2 days, and positive rate is 20% (1/5).MHV was detected in lung, liver, cecal and feces during 4 and 56 days.The positive rate was 0/5 in lung, liver, cecal and feces on 84 days after experiments.Antibody positive rates were 100%during 8 and 84 days.Conclusion Serological method can be used as the main method for the diagnosis of the daily supervision , and antigen detection method can only be applied to early diagnosis .