Objectives This study was conducted to detect and analyze the presence of plasmidmediated quinolone resistance (PMQR) determinants [qnr,aac-(6′)-Ib-cr and qepA] among clinical isolates of Citrobacter freundii strains isolated from patients in Anhui,China,and to understand the susceptibility of PMQR positive strains to commonly used antimicrobial agents.Methods During the year 2009,31 Citrobacter strains were collected from the First Affiliated Hospital of Anhui Medical University.Polymerase chain reaction (PCR) was used to detect PMQR genes.Amplicons were purified,sequenced and compared with data from the GenBank.Conjugation experiments were conducted to determine whether the qnr-carrying plasmids were self-transferable.The susceptibility of the positive isolates and transconjugants were tested by agar dilution method according to Clinical and Laboratory Standards Institute (CLSI) guidelines.The minimum inhibitory concentrations (MIC) of ciprofloxacin and levofloxacin were determined by E-test strips.Results Among the 31 Citrobacter strains,the qnr genes were detected in 8 isolates (25.8％),among which,6 carried qnrB.Aac-(6′)-Ib-cr and qepA were not identified in these isolates.The qnr genes were transferred from four clinical isolates to their transconjugants.Sequence analysis identified one novel qnrB variant (qnrB24).The resistant rate of qnr-positive clinical isolates to quinolone was 87.5 ％.Most of them were also resistant to various other antibiotics,including cefotaxime (75.0 ％),amikacin (7.5 ％),ceftazidime (62.5 ％),cefapime (37.5 ％),and gentamycin (87.5 ％).All qnr positive strains were susceptible to imipenem.MIC of all transconjugants showed reduced susceptibility to fluoroquinolones,with MIC increased by 10-23 folds.Conclusions Our study shows that qnr gene has occurred in Citrobacter freundii isolates from Anhui Province,China.QnrB is most prevalent in these isolates.Most qnr positive isolates are resistant to commonly used antimicrobial agents.

Objective To provide a reference for local best practice information sheet by way of analyzing the status quo of adult peripheral venous catheters nursing and maintenance.Methods Systematically analyzing the related 487 documents met the inclusion criteria in CBMdisc,CNKI Database and WanFang Database from the year of 1990 to 2013 by biliometric analysis methods.Results The number of documents,rising year after year,stood mainly in nursing journals,of which the majority authors are from Guangdong [10.3％(50/487)],Anhui [9.0％(44/487)] and Hubei [7.6％(37/487)].50.3％ (245/487)of the documents did not refer in particular to the object.The three major research concerns are the prevention and treatment of complications[80.9％(394/487)],cannulation [23.6％(115/487)] and maintenance [19.9％ (97/487)].Conclusions Peripheral venous catheter cannulation and maintenance has gained widespread attention among the domestic clinical staffs,but the overall quality of articles concerning these aspects is not high.High-quality research papers are expected to provide better evidence for local best practice information sheet.

OBJECTIVE To investigate the distribution and the resistance rate of Shigella in Anhui Province to guide the choice of antibacterials. METHODS Ninety one strains of Shigella were cultured in Sep 2005.The groups were identified by biochemical and serologic tests.Susceptibility of 91 strains of Shigella in Anhui to various antibiotics was tested using standardized custom dilution MIC panels according to CLSI(2005) guidelines. RESULTS There were 57 strains of Shigella flexneri,31 strains of S.sonnei and 2 strains ofS.boydii among 91 strains of Shigella.The resistance rates of Shigella to cefoperazone/sulbactam and piperacillin/tazobactam were remarkably lower than to other third generation cephalosporins.The susceptible rates to carbopenems were 100%.The resistance rates to ciprofloxacin lactate and pazufloxacin mesilate were 27.47% and 32.97%,respectively. CONCLUSIONS There is a certain resistance rate of the Shigella to fluoroquinolones and the third generation cephalosporins.More attention should be paid to the surveillance and control of such resistance.

Objective: To study diagnostic and predictive value of levels of high sensitive C reactive protein (hsCRP) and cystatin C (CysC) for acute coronary syndrome (ACS) in aged patients.Methods: A total of 60 ACS patients (ACS group) treated in our hospital and 60 healthy subjects (healthy control group) undergoing physical examination during Dec 2013 to Sep 2015 were randomly selected.Serum levels of hsCRP and CysC, and abnormal rates of hsCRP and CysC were measured and compared between two groups.Results: Compared with healthy control group, there were significant rise in serum levels of hsCRP[(3.02±1.13) mg/L vs.(7.95±2.38) mg/L]and CysC[(0.75±0.11) μg/ml vs.(1.35±0.43) μg/ml], and abnormal rates of hsCRP (0 vs.13.33%) and CysC (0 vs.11.67%) in ACS group, P<0.01 all.Conclusion: Serum hsCRP and CysC level measurements can effectively predict and assess occurrence, development and prognosis of disease in ACS patients, and provide clinical valid evidence for its diagnosis, prevention and treatment.

Objective To explore the effect of insulin subcutaneous pump combined with psychological intervention on gestational diabetes mellitus.Methods A total of 118 patients were enrolled in this study from November 2015 to October 2016 in Lishui central hospital.The patients were randomly divided into the experimental group and the control group according to the time of hospitalization.The experimental group was given insulin subcutaneous pump combined with psychological intervention.The control group was given insulin subcutaneous pump.Results After intervention, the degree of complete compliance in the experimental group was 86.44% and 28.81% before intervention, the difference was statistically significant(P<0.05).Compared with before treatment, blood glucose and glycosylated hemoglobin were decreased after treatment(P<0.05).The incidence of complications in the two groups include: pregnant women with excessive amniotic, neonatal hypoglycemia, pregnancy induced hypertension syndrome and so on.The difference of complication rate between the two groups was statistically significant(P<0.05).Conclusion The timely and accurate psychological guidance of pregnant women with diabetes mellitus can control the blood glucose in the normal range, reduce the occurrence and development of maternal and child complications, and ensure the safe and healthy mother and child health.

Objective To investigate the difference between Asia-Pacific Colorectal Screening (APCS) scoring system and colorectal cancer sequential screening criteria issued by the Health Ministry of China (China sequential criteria) in the evaluation of high-risk colorectal neoplasm in patients undergoing coronary artery angiography (CAG) examination.Methods The data of 870 patients aged from 40 to 74 who underwent CAG examination were retrospectively analyzed.The measurement data were analyzed by t test and the count data were aralyzed by x2 test.Results There were 72 patients aged from 40 to 49 years old.Among them,eight patients were stratified as high-risk population according to the Chinese sequential criteria; however there was no high-risk population by APCS.There were 798 patients aged from 50 to 74 years old.There were 460 patients stratified as high-risk population by APCS.The percentage of CAG negative group (34.7％) was significantly lower than that of the coronary artery disease (CAD) group (68.0％,x2 =77.74,P＜0.01).According to the Chinese sequential criteria,and there were 134 patients stratified as high-risk population,and there was no significant difference between the CAG negative group (17.7 ％) and the CAD group (16.4％,P＞0.05).Among the patients aged from 50 to 74 years old without family history of colorectal cancer in first-degree relatives,72 cases (29.0％) of the CAG negative group and 316 cases (57.5％) of the CAD group were stratified as high-risk according to APCS,however not stratified as high-risk by the Chinese sequential criteria.About 90.5 ％ (351/388) of them were male smokers.According to APCS,30 cases (12.1％) of the CAG negative group and 32 cases (5.8％) of the CAD group were stratified as middle-risk population,however stratified as high-risk population by the Chinese sequential criteria.About 75.8％ (47/62) of them were female non-smokers.Conclusions The percentage of patients stratified as high-risk population by APCS was higher than that by the Chinese sequential criteria.In patients aged from over 50 to 74 years old and without family history of colorectal cancer in first-degree relative,APCS maybe overestimated the risk degree of colorectal neoplasm in male smokers and underestimated the risk degree in female non-smokers.

Objective To evaluate previous gastroscopy before percutaneous coronary intervention (PCI) for the risks and benefits of concomitant use of proton pump inhibitors (PPIs) after PCI in patients with non-acute coronary syndrome (non-ACS).Methods The data of 673 non-ACS patients who underwent PCI with stenting were retrospectively analyzed.They were divided into concomitant use of PPIs group and non-PPIs group,then subdivided into high-,moderate-and low-risk groups according to risk factors associated with adverse upper gastrointestinal (GI) events.The incidences of adverse cardiovascular events and adverse upper GI events were compared among groups.Findings of previous gastroscopy were also included.Results Only 82 patients (12.2％) underwent gastroscopy within 5 years before PCI,of whom,27 (32.9％) were diagnosed as having peptic ulcer,and 55.6％ (15/27) of whom were in concomitant use of PPIs.Compared with the non-PPIs group,the rate of adverse cardiovascular events in the concomitant use of PPIs group was significantly higher (22.6％ vs.8.9％,P ＜0.01),and the highest rate (41.7％) was in the high-risk group.However,the corresponding rate of adverse upper GI events was the lowest (4.2％).In the moderate-risk group,90.5 ％ (344/380) of patients were older than 65 years with concomitant use of NSAIDs.The rate of gastroscopy within 5 years before PCI in these patients was remarkably lower than that in patients who had the history of upper GI disease with concomitant use of NSAIDs (concomitant use of PPIs group 14.1％ vs.54.5％ ; non-PPIs group 7.5％ vs.28.0％ ; P ＜ 0.01).In the concomitant use of PPIs group,the rate of adverse cardiovascular events in the former was notably higher than that in the latter (20.5％ vs.9.1％,P ＜0.01),but the rate of adverse upper GI events within 1 year after PCI were similar (9.0％ vs.9.1％).Conclusion Previous gastroscopy before PCI could provide the baseline information of upper GI disease,which may be helpful for the evaluation of concomitant use of PPIs after PCI so as to decrease the incidence of adverse cardiovascular events.Special attention should be paid to those patients older than 65 years in the moderate-risk group and concomitant use of NSAIDs.

Objective To study the roles of abnormal expressions of Caspase-8 and protein kinase C(PKC)-β of cardiomyocytes in the development of the apoptosis of cardiomyocyte in diabetic rat. Methods Rats were divided into 4 groups:(1)normal control (NC, n=37),(2)rats given STZ injection and normal diet(STZ,n= 42), (3) rats fed with high fat and high sngar ( HFS, n= 37), (4)rats given STZ injection and high fat and high sugar diet (type 2 DM, n=64). Plasma glucose, insulin and lipids were detected. At the end of experiment, the animals were sacrificed, and their hearts were examined. Pathological changes were observed and the expressions of Caspase-8, PKC-β mRNA were determined by real time-PCR method; apoptosis was analyzed by flow cytometry. Results (1)The body weight was higher in HFS group than in other three groups, and progressively decreased in type 2 diabetes group. The glucose level was highest in diabetic group, and was similar between groups of HFS and NC. (2)The apoptosis showed tendency to ascend during course of disease in diabetes model group. (3)The expressions of Caspase-8 and PKC-β mRNA were significantly enhanced in diabetes model group than in normal control group, and had a tendency to ascend during the course of disease.(4)The myocardial cells of the diabetic rats were rarified and swelling, fibrosis was observed. (5)At the 16th week, the level of plasma glucose was correlated positively with the expressions of Caspase-8 and PKC-β mRNA. Conclusions The enhancement of expressions of Caspase-8 amd PKC-β may play iportat rols in the pathogenesis of diabetic cardiomyopathy,in which apoptosis of the cardiomyocytes increased.

Objective To investigate the role of double-balloon enteroscopy (DBE) in the evolution of detection and surgical treatment of small bowel stromal tumors (SBSTs),based on nine years experience.Methods In this retrospective study,193 patients with localized SBSTs were divided into the CT-enterography (CTE) and/or DBE group (n =100) and conventional modalities group (n =93).These patients were further divided into the open surgery group (n =126) and laparoscopy-assisted resection group (n =67).The development of clinical diagnosis and surgical treatment strategies were compared before and after the introduction of DBE.Results The average age and tumor size were significantly smaller in the CTE and/or DBE group than those in the conventional modalities group,respectively (age:50.9 ± 12.1 vs.56.9 ± 11.6 years; tumor size:3.6 ± 1.3 vs.6.1 ± 2.6 cm,P ＜ 0.01).Before the introduction of DBE (from January 2001 to December 2002),all patients underwent conventional modalities,and only 4 cases/year for open surgery.Afterward,from January 2003 to December 2004,84.6％ (11/13) of SBSTs were detected by DBE.From January 2005 to December 2008,50.0％ (23/46) of SBSTs were found by CTE combination with DBE.From January 2009 to December 2011,80.5％ (33/41) of SBSTs were diagnosed by CTE,and the number of patients underwent operation increased up to 25 cases/year,which was nearly 5.3 folds higher than that before the introduction of DBE.Sixty-seven patients were successfully operated by laparoscopy-assisted resection,82.1％ (55/67) of them were detected by CTE ands/or DBE,89.1％ (49/55) of whom had low-or intermediate-risk SBSTs.Conclusion DBE plays an important role in optimizing the algorithm of detection and treatment of SBSTs.

Objective To study the dynamic changes of injury and apoptosis of liver induced by lipid metabolic disturbance in the rats with diabetes mellitus and their correlation with the expressions of sterol regulatory element binding protein-1c(SREBP-1c)and c-Jun N-terminal kinase(JNK).Methods Experimental animals were randomly divided into 4 groups:diabetesgroup(n=64)induced by high-carbohydrate and high-fat diet plus intra-peritoneal streptozeotocin(STZ)injection,normal control(n=37)fed regular diet and receiving citric buffer solution injection,STZ group(n=42)fed regular diet and receiving STZ injection,high gluaxeard fat group(n =37)receiving citric buffer solution injection.Body weight,liver weight,fasting plasma glucose(FPG),fasting insulin(FINS),triglyceride(TG),total cholesterole(TC),alanine transaminase(ALT),asparate transaminase(AST)were detected at various time intervals.The changes of liver histopathology and ultrastructure were observed by ES and Sudan Ⅲ stanings,transmission electrom microscope.The expressions of SREBP-1c and JNK mRNAs and proteins were determined by real time-PCR methods.Apoptosis was analyzed by flow cytometry.Results The diabetic rats showed much lower body weight(P＜0.05)and higher liver weight than controls,STZ group and high-carbohydrate and fat group(P＜0.05),while showed higher levels(P＜0.05)of serum FPG,FINS,TG,TC,ALT,AST.Diabetic rats exhibited fatty degeneration of liver cells accompanied by inflammatory infiltration and fibrosis.Organelle structures were more disturbed and apoptosis was more obviou along with longer course of disease.The expressions of SREBP-1c,JNK proteins and mRNA were significantly enhanced.The rats fed high-carbohydrate and fat diet also showed similar liver lesions and enhanced SREBP-1c,J NK proteins and mRNA expressions but not as severe as in diabetes group Conclusions Insulin resistance and high blood glucose may induce diabetic hepatopathy.The high expressions of JNK and SREBP-1c may play important roles in liver lipid metabolism disorders and cell apoptosis.