Emergency Treatment ; Humans ; Male ; Middle Aged ; Multiple Organ Failure ; complications ; therapy ; Myocardial Infarction ; complications ; therapy ; Pancreatitis ; complications ; therapy ; Treatment Outcome

Objective To observe the clinical efficacy of small-dose ranitidine hydrochloride and diphenoxy- late compositae in the combined treatment of diarrhea-predominant irritable bowel syndrome(D-IBS).Methods A prospective,randomized controlled clinical trial was designed.150 D-IBS patients according to RomeⅡcriteria were randomly divided into combined treatment group and control group.The combined treatment group(74 patients)re- ceived ranitidine hydrochloride,0.15g,each evening and diphenoxylate compositae,1 piece,each evening.The control group(76 patients)received diphenoxylate compositae,1 piece,rid.This study consisted of a 2-week baseline period, a 3-week treatment period,followed by a 2-week follow-up period.The main efficacy variable was assessed by per- ception of overall symptom during the previous weeks.Secondary efficacy variables included severity of diarrhea,ab- dominal pain and distention and other symptoms.Results After treatment of 3 weeks,the efficacy of the combined treatment group was better than that of the control group(x~2=5.10,P

OBJECTIVETo investigate the apoptosis-inducing effect of DMF on the human liver cells (HL-7702) in vitro.

METHODSLiver cells were exposed to different concentrations of DMF (0, 50, 100, 150, 200 mmol/L) for 12 hours. Apoptotic rate, the expression of Bax, Bcl-2 and Caspase-3 in liver cells were measured by FCM and western blotting respectively.

RESULTSThe increase in apoptotic rate of hepatocytes in concentration-manner was shown after DMF treatment for 12 h. After treatment the expression of Bcl-2 was decreased steadily and lower than the control group (P < 0.01), the expression of Bax showed no significant difference among the groups of different dosage by one-factor analysis of variance (P > 0.05), as the increase of the dosage of DMF. The ratio of Bcl-2/Bax dropped with the dosage of DMF increasing, and the ratio in 200 mmol/L of DMF was significantly lower than that of the control (P < 0.01). The new lands of procaspase-3 in 150, 200 mmol/L were observed, which demonstrated that there was active caspase-3.

CONCLUSIONDMF can induce apoptosis of cultured adult normal hepatocytes in vitro, and the mechanism might be related to the decrease of Bcl-2/Bax and the cleavage of Caspase-3.

Apoptosis ; drug effects ; Caspase 3 ; metabolism ; Cells, Cultured ; Dimethylformamide ; pharmacology ; Hepatocytes ; drug effects ; metabolism ; pathology ; Humans ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; bcl-2-Associated X Protein ; metabolism

Objective To study the process of removing bacterial endotoxins by ultrafiltration technology in dextran 40 injection. Methods Dextran 40 solution was ultrafiltrated by 100,200,and 300 kDa aperture ultrafiltration membranes with composite, PES and PVDF materials. In order to optimize ultrafiltration process,the content of effective component and endotoxins were detected by HPLC and kinetic-turbidimetry,respectively,and the change of particle size distribution in dextran 40 solution was analyzed before and after ultrafiltration. Results The transmittance of dextran 40 was close to the same MWCO and different membrane material. When MWCO reached 300 kDa,the transmittance was above 91%,which met the requirement of filtration. The endotoxin removal rates by 100-300 kDa composite ultrafiltration membranes were more than 99%. But the endotoxin removal rates of both of PES and PVDF membranes were less than 40%,which were unable to guarantee the removal efficiency of the endotoxin in dextran 40 solution. The particle size declined after ultrafiltration by 300 kDa composite membrane, and level of the insoluble particles decreased. Conclusion The 300 kDa composite ultrafiltration membrane can effectively remove endotoxin in dextran 40 solution with less main components loss. The material can meet requirements for producing dextran 40 injection.

Ascites ; etiology ; Child, Preschool ; Enteritis ; complications ; Eosinophilia ; complications ; Female ; Gastritis ; complications ; Humans ; Recurrence

Animals ; Female ; Gonads ; physiopathology ; Hypothermia ; chemically induced ; physiopathology ; Male ; Rats ; Rats, Wistar ; Sex Factors ; Soman ; adverse effects ; pharmacology

AIM: To investigate the therapeutic effect of endothelial progenitor cell-conditioned medium (EPC-CM) on the lung structure of neonatal rat exposed to hyperoxia, and to explore the mechanisms.METHODS: Bone marrow-derived endothelial progenitor cells (EPCs) were collected from new born Sprague-Dawley (SD) rats and the EPCs were identified.The conditioned medium from the passage 3 EPCs was collected.Newborn SD rats (n=40) were randomly divided into 4 groups.The rats in room air group were exposed to the room air (21% O2) for 21 d.The rats in hyperoxia group were exposed to hyperoxia (85% O2) for 21 d.The rats in endothelial cell basal medium (EBM) group were exposed to hyperoxia for 21 d, and received 100 μL EBM on postnatal day 14 (P14) in a single intratracheal (IT) injection.The rats in EPC-CM group were exposed to hyperoxia for 21 d, and received 100 μL EPC-CM on P14 in a singlie IT injection.The rats were sacrified on the 21st day.The left lungs were excised, placed in 4% paraformaldehyde, serially dehydrated in ethanol and embedded by paraffin.Serial sectioning of the paraffin-embedded left lung tissues was prepared for 5 μm thickness, and stained with hematoxylin and eosin.The pulmonary radical alveolar count (RAC) and alveolar mean linear intercept (MLI) were then calculated.The microvascular density was determined by FVIII immunostaining.The mRNA expression of KGF, VEGF, SP-A and SP-C in the right lung tissues was detected by real-time fluorescence quantitative PCR.RESULTS: The cultured cells had typical EPC morphological characteristics, and had the abilities to bind to FITC-UEA-1 and uptake DiI-ac-LDL.The body weight of the rats on day 21, RAC, MLI and microvascular density were significantly lower in hyperoxia group and EBM group than those in room air group (P<0.05).The EPC-CM group had significantly higher RAC and microvascular density than those in hyperoxia group and EBM group (P<0.05), but the body weight and MLI had no significant difference.The mRNA expression levels of KGF, VEGF, SP-A and SP-C in hyperoxia group and EBM group were significantly lower than those in room air group (P<0.05).The mRNA expression levels of KGF, VEGF, SP-A and SP-C in EPC-CM group were significantly higher than those in hyperoxia group and EBM group (P<0.05).CONCLUSION: EPC-CM promotes the lung alveolarization and microvascular formation in neonatal rats exposed to hyperoxia.These benefits may be correlated with the increased KGF and VEGF mRNA expression.

Biomarkers ; metabolism ; Cholesterol ; metabolism ; Coronary Disease ; Humans

Objective To discuss the prognostic impact of atrial fibrillation (AF) in patients with chronic heart failure(CHF).Methods From January,2005 through December,2006 we studied 461 patients with a discharge diagnosis of CHF.Patients were divided by baseline rhythm in sinus rhythm(SR) or AF groups.The main endpoints were all cause death within 3 years and readmission to the hospital for heart failure.Results AF group were more likely to be older and female and to have a history of valvular disease and have a higher left ventricular ejection fraction (LVEF).However,SR group were more likely to have a history of ischemic heart disease.During 3 year follow-up,the main endpoints was higher in AF group than in those with SR group (P ＜0.01).After adjusting for other covariables,AF and age were related to increased the risk of main endpoints during 3 years follow-up (RR =1.311,95％ CI:1.002-1.715,P ＜0.05 ; RR =1.014,95％ CI:1.004-1.024,P ＜ 0.01).Conclusion AF and age were the main risk factors of increased adverse forward prognosis in patients with CHF.

Objective To investigate the distribution and drug resistance of the gram positive bacteria isolates from hospital in Chongqing during 2006-2011 .Methods Non-repetitive gram positive bacterias were collected retrospectively from ten hospitals in Chongqing .Antimicrobial susceptibility testing of all clinical isolates were carried out using Kirby-Bauer(KB) .Results 14 473 strains were isolated .There were 4 840 strains of Staphylococcus aureus (33 .4% ) ,2 566 strains of Staphylococcus epidermidis (17 .7% ) ,1 822 strains of Staphylococcus haemolyticus (12 .6% ) ,1 325 strains of Enterococcus (E .faecalis/E .faecium )(9 .2% ) . Staphylococcus was highly sensitive to nitrofurantoin ,rifampicin ,piperacillin/tazobactam ,linezolid ,teicoplanin and vancomycin ,but their resistance rate to ampicillin/sulbactam ,oxacillin ,penicillin and clarithromycin was high .The resistance rate of E .faecium to the majority of antimicrobial agents was obviously higher than that of E .faecalis ,excluding imipenem ,chloramphenicol and tetracy-cline .Vancomycin and linezolid still remain the strongest antibacterial activity to Enterococcus .Conclusion The distribution and drug resistance of pathogenic bacteria in Chongqing present regional particularity ,and antibiotic resistance is severe .It is significant to strengthen the epidemiology study of pathogenic bacteria and to develop policies to intervene in the use of antimicrobial agents .