Objective To investigate the distribution and drug resistance of clinical common isolated bacteria from our hospital in 2013.Methods The antimicrobial susceptibility testing was carried out by using the automated systems with the MIC method and Kirby-Bauer method.The WHONET 5.6 software was adopted to conduct the data analysis according to the CLSI standard in 2013 version.Results A total of 4 168 strains of bacteria were clinically isolated in 2013,in which Gram-positive bacterial strains ac-counted for 21 .8%(907/4 168)and Gram-negative bacterial strains for 78.2%(3 261/4 168).The prevalence of methicillin-resist-ant strains in S.aureus and coagulase negative staphylococcus was 48.7% and 80.9% respectively.No staphylococcal strain with resistant and intermediate to vancomycin and linezolid was found.Penicillin-resistant S.pneumonia strain was not found.And 1 strain of vancomycin- resistant E.faecium was found.The prevalence of ESBLs - producing strains was 58.8% in E.coli and 35.8% in K.pneumonia.Non-fermentative bacilli accounted for 37.5% in all bacterial isolates.The percentage of P.aeruginosa re-sistant to imipenem and meropenem was 19.3% and 14.2% respectively,the percentage of A.baumannii resistant to imipenem and meropenem was 68.9% and 67.0% respectively.Conclusion The isolation rate of non-fermentative bacilli is increased,the drug re-sistance rate of P.aeruginosa and A.baumannii is declined than that in 2012.Strengthening the surveillance of bacterial drug resist-ance in hospital has important significance for guiding rational selection of antimicrobial agents in clinic.

Objective To investigate the expression and signification of p63,aromatase P450 (P450arom) and steroidogenic factor-1 (SF-1) in endometrial polyp,and to explore its role in the pathogenesis of endometrial polyp.Methods Specimen were collected from hysteroscopic resection,pathologically confirmed endometrial polyp specimens of 30 cases of endometrial polyp and the adjoining endometrium around endometrial polyp in 20 cases,endometrial tissue of normal control group of 25 patients.Immunohistochemistry SP method and real-time PCR technology were used to detect the three groups in the expression of p63,P450arom and SF-1 protein and gene.Results P450arom gene (0.274±0.082) and protein (1.2± 1.1) expression in endometrial polyp was significantly higher than the adjoining endometrium and normal endometrium (P＜0.05); the expression of SF-1 protein (1.1 ±0.8) and p63 protein (0.8±0.5) were also higher in the endometrial polyp than the other two control groups (P＜0.05); while the expression of SF-1 mRNA (0.105±0.049 versus 0.053±0.043) and p63 mRNA (0.261±0.052 versus 0.180± 0.018) in endometrial polyp had no significant difference between endometrial polyp and the adjoining endometrial (P＞0.05).Conclusion p63,P450arom and SF-1 may play a role in the formation of endometrial polyp.

AIM: To study the interaction effects of Astragalus polysaccharide(APS) and total glucosides of paeony(TGP) with various dosage on the platelet aggregation. METHODS: Platelet aggregation was estimated by the turbidimetric method. The best interaction effects were determined by uniform design method. RESULTS: APS showed apparent anti-platelet effects and better combination with TGP,and the ratio of 121 was the best one. CONCLUSION: APS concerted with TGP inhibits platelet aggregation.

Objective To investigate the corelationship between proton pump inhibitors (PPI) and the incidence of hospital-acquired pneumonia (HAP) in abdominal surgical patients. Methods A total of 283 cases admitted from 2010 to 2014 were divided into PPI group (n = 326) and HRA group (n = 92). In PPI group, patients were divided into omeprazole subgroup (subgroup A, n = 146), lansoprazole subgroup (subgroup B, n = 102) and pantoprazole subgroup (subgroup C, n = 78) by the types of PPI. In HRA group, patients were divided into famotidine subgroup (subgroup D, n = 58) and ranitidine subgroup (subgroup E, n=34) by the types of histamine-2 receptor antagonist (H2RA). The incidence of stress ulcer bleeding (SUB) and HAP were calculated, while mechanical ventilation period (MV), ICU stay and 28-day-mortality were compared. Results There were lower incidences of SUB and HAP, shorter MV and ICU stay and lower 28-day-mortality in PPI group than those in HRA group (P < 0.05). In three subgroups of PPI group, there were no significant difference on incidence rate of SUB and HAP, as well as MV, ICU stay and 28-day-mortality. Conclusion The incidence rates of SUB and HAP are lower by using PPI than H2RA in abdominal surgical patients, as well as MV, ICU stay and 28-day-mortality. Different types of PPI have no effect on the incidence rate of HAP in abdominal surgical patients.

OBJECTIVE: To establish a HPLC method for the determination of serum concentration of caffeic acid in rats and which was applied to the pharmacokinetic study of caffeic acid. METHODS: The concentrations of caffeic acid in rats were determined after intragastric (ig) administration or intravenous (iv) administration of 50 mg?kg-1 caffeic acid and the pharmacokinetic parameters of caffeic acid analyzed by Topfit 2.0. RESULTS: The main pharmacokinetic parameters of caffeic acid after ig administration of caffeic acid were as follows: Cmax: (0.56?0.12) ?g?mL-1; tmax: (0.18?0.04) h; t1/2: (0.67?0.12) h; ke: (1.05?0.20) h-1; AUC(0～t): (0.34?0.05) ?g?h?mL-1. The main pharmacokinetic parameters of caffeic acid via iv administration were as follows: t1/2: (0.45?0.05) h; ke: (1.55?0.18) h-1; AUC(0～t): (9.07?2.24) ?g?h?mL-1. CONCLUSION: Administered intragastrically, caffeic acid was characterized by rapid absorption, short elimination half life (t1/2) and low absolute bioavailability in rats.

Acute kidney injury (AKI) is a serious clinical problem with high morbidity and mortality. Renal replacement therapy (RRT) is an important tool for treating patients with AKI. The 2011 Kidney Disease: Improving Global Outcomes (KDIGO) Clinical Practice Guideline for AKI points out that RRT should be discontinued when renal function has recovered enough to meet the body needs or when RRT is no longer consistent with treatment goals. However, the specific reference index of weaning RRT is unclear. The guiding roles of traditional indicators such as urine output (> 400 mL/24 h), serum creatinine (SCr, decreasing trend), creatinine clearance (CCr, > 20 mL/min), and novel biomarkers such as neutrophil gelatinase-associated lipocalin (NGAL), hepatocyte growth factor (HGF), interleukins (IL-6, IL-10), kidney injury molecule-1 (KIM-1), kynurenic acid, etc. for discontinuation of RRT in AKI patients were reviewed. Particularly, the importance of biomarkers for this purpose was highlighted.

OBJECTIVE: To evaluate the clinical curative effect and safety of nabumetone for rheumatoid arthritis. METHODS: The researches about the study on the curative effect and ADRs of nabumetone for rheumatoid arthritis were retrieved and carried out by Meta-analysis. RESULTS: 9 researches were up to the including criteria. As compared with the control group, nabumetone has better effect [RR=1.11,95% CI(1.02, 1.20), P=0.01] but fewer ADRs [RR=0.71,95% CI(0.41, 1.22), P=0.007] in clinical treatment of rheumatoid arthritis. CONCLUSION: The evidence currently available shows that nabumetone has better efficacy and safety. Because the RCTs available for this systematic review are too small, more and further high-quality large-scale RCTs with long-term follow up are required to provide more reliable evidence

Objective To sequence the antigen-encoding genes esxA,fbpB and Rv2660c from clinical isolates of Mycobacterium tuberculosis (MTB) in tuberculosis children and study the polymorphisms.Methods A total of 135 isolated strains were amplified for gene sequences of esxA,fbpB and Rv2660c by PCR,and the products were sequenced respectively.The results of sequencing were compared with the corresponding gene sequences of standard strain H37Rv and human T and B cell epitope sequences from immune epitope database (IEDB).The genetic diversities of the gene sequences of esxA,fbpB and Rv2660c were analyzed.Results Among the 135 strains,no gene polymorphisms were found in esxA and Rv2660c.But fbpB had genetic diversities in 66 clinical isolates (48.89％).The 5 single nucleotide polymorphism (SNP) mutations in fbpB affected 8 (14.81％) T cell epitopes and 9 (24.32％) B cell epitopes.The dN and dS values of whole fbpB gene were 0.000 120 and 0.002 126,respectively.The dN and dS values of T epitopes areas were 0.000 067 and 0.002 382 respectively,those of non-T epitopes area were 0.000 408 and 0.000 470,respectively,those of B epitopes areas were 0.000 063 and 0.00 2380,and those of non-B epitopes areas were 0.Conclusion The gene sequences of esxA and Rv2660c are conservative,and that of fbpB contains genetic diversities.Its polymorphisms may influence the function of antigen Ag85B,and thus affect the efficacy of vaccine H56.

Objective To investigate whether poly arginine as the carrier can carry foreign proteins to penetrate the cell membrane and even penetrate the eyeball barrier.Methods Poly-Args (R9) was used as a CPP in this study.R9-green fluorescent protein (GFP) and GFP were constructed.In vitro,human lens epithelial cells were treated with these two proteins.Then,MTT assay were used to detect whether the protein could affect the proliferation of the cells.Flow cytometry and laser confocal microscopy were used to detect the penetrability of CPPs on the cells.In vivo,eyes of mice were treated with protein in eye drops way for 7 days.Then total protein were extracted,ELISA were used to detect the penetrability of CPPs.Results The results of MTT,flow cytometry and laser confocal microscopy showed that CPPs could carry protein into cells in a dose dependent manner without affecting cell proliferation.In vivo,slit lamp showed that the mice eyeballs had no any abnormal after treated by GFP,R9-GFP,and ELISA results also showed that R9 could effectively get foreign protein into the eyeball.Conelusion R9 can carry foreign protein into the cell membrane and eyeball barrier.This study provides the basis for the eye medication and dosing mode improvement.