Objectives To explore the effects of Baicalin and Berberine against Trichomonas vaginalis(TV) in vitro. Methods The micro-double-dillution assay is used to measure the Minimal lethal concentration (MLC) of Baicalin and Berberine against 6 freshly isolated strains of TV, using metronidazole as control. Results MLC of Baicalin and Berberine against 6 isolated strains in vitro of TV ranges from 0.125 to 0.5 mg/mL and 0.25 to 1.0 mg/mL, respectively. The means of MLC are 0.229 mg/mL and 0.417mg/mL, respetively, with statistically significant difference (t=2.666, P

Objective To observe the correlation between protein C activity-dependent clotting time-normalized ratio (PCAT-NR) and the related blood coagulation parameters,e.g.,fibrinogen (Fib),factor Ⅶ coagulant activity (Ⅶ:C),factor Ⅷcoagulant activity (F Ⅷ:C),antithrombin (AT),D-dimer (DD) in patients with acute cerebral infarction.Methods One hundred cases of patients who were diagnosed as acute cerebral infarction according to clinical manifestations and imaging examinations were taken as the test group and 75 healthy subjects were taken as control group.The values of Fib,FⅦ:C,FⅧ:C,AT,PCAT-NR,DD were tested and the difference between the two groups were compared.The differences of Fib,FⅦ:C,FⅧ:C,DD and AT between declined PCAT-NR group and normal PCAT-NR group in the patients with acute cerebral infarction were analyzed.The correlations of PCAT-NR with other coagulation parameters in acute cerebral infarction cases were compared.Results The values of Fib (3.38 ± 1.25) g/L,F Ⅶ:C (130.5 ± 15.9) ％,FⅧ:C (135.8 ± 43.1) ％ and DD (2.12:±:3.01) mg/L in the acute cerebral infarction group were significantly higher than those of control group,while the values of AT (83.94 ± 14.95) ％ and PCAT-NR (0.87 ± 0.23) in test group were significantly lower than those the control group (P＜0.05).The values of Fib (4.03 ± 1.25)g/L,FⅦ:C (138.2 ±6.9)％ and FⅧ:C (151.5 ± 54.9)％ of PCAT-NR declined group in the patients with acute cerebral infarction were significantly higher than those of PCAT-NR normal group (P ＜ 0.05),while the values of DD,AT were not statistically different between two groups (P ＞ 0.05).The values of PCAT-NR were significantly negatively correlated with Fib,FⅧ:C and DD in the patients with acute cerebral infarction (r =-0.484,-0.356 and-0.473,respectively (all P ＜ 0.05).There was no correlation of PCAT-NR with FⅦ:C and AT (P ＞ 0.05).Conclusion The PCAT-NR decline was associated with high coagulation state in patients with acute cerebral infarction.This decline has some correlation with high level of blood clotting factor Ⅷ and Fib.

OBJECTIVE To investigate the resistant mechanisms of Candida albicans to azoles at molecular level.METHODS NCCLS M-27 protocols were used to test the in vitro susceptibilities of 102 C.albicans strains isolated from the patients with recurrent vulvovaginal candidiasis(RVVC) against fluconazole(FLC) and itraconazole(ITC) to screen the FLC-and ITC-resistant C.albicans isolates;six pairs of primers,A1-A2,B1-B2,C1-C2,D1-D2,E1-E2 and F1-F2 were respectively to amplify gene CYP51 of 4 strains with FLC-and ITC-resistance.The PCR products were sequenced and analyzed to identify the mutation sites by compared with the sequence of gene CYP51 of referenced C.albicans strain in NCBI site of Internet.RESULTS The analysis of full length sequence of CYP51 from 4 FLC-and ITC-resistant strains showed that from total 32 mutation sites there were 4 significant site mutations,where the mutation of GAT to GAC at 116 caused the substitution of D by E(E266D in two strains);GCC to GGT at 117 caused the substitution of A by G(A117G in 1 strain);GAA to GAC at 266 caused the substitution of E by D(E266D in 2 strains);and GTT to ATT at 488 caused the substitution of I by V(V488I in 1 strain).The site mutations of 266 and 488 were tested in 1 strain of 4 strains.CONCLUSIONS The CYP51 total gene of 4 strains has been checked out.Of FLC and ITC-resistant C.albicans alignment in this time,find out 4 significant bp mutations.Causing its amino acide change,among them,A117G has not be interrelated report still now.The details of mechanism need to be further studied.

20 antimicrobial agents were determined by Kirby-Bauer methods by the participating institutions.RESULTS A total of 428 strains were isolated,Gram-positive cocci and Gram-negative bacilli accounted for 49.8% and 50.2%,respectively.The Gram-positive bacteria increased from 44.6% to 51.2% from 1995-1996 through 2003-2004 and Gram negative bacteria decreased from 55.4% to 48.2% in the meantime.The most frequent Gram-positive isolates were coagulase negative staphylococci,Staphylococcus aureus,Enterococcus spp and Streptococcus pneumoniae;the most frequent Gram-negative isolates were Acinetobacter spp,Klebsiella spp,Escherichia coli,Pseudomonas aeruginosa and Enterobacter spp;Neisseria meningitidis,Haemophilus influenzae,Flavobacterium spp and Citrobacter spp were relative less common.No strains resistant to vancomycin were found in staphylococci and enterococci.Gram-negative bacilli were highly susceptible to carbapenem.CONCLUSIONS Gram-positive cocci play an increasing role in central nervous sysytem infections,especilly coagulase negative staphylococci,and Gram-positive cocci have been increasing from 1995-1996 through 2003-2004,resistance to the first line antibiotics is common among all cerebrospinal fluids isolates.

OBJECTIVE To investigate the trend of resistance of antimicrobial agents among clinical isolates of Klebsiella pneumoniae 1996-2005.METHODS Agar diffusion test was used to analyze the changes in drug susceptibility of K.pneumoniae isolated from 11 hospitals in Shanghai to antimicrobial agents.RESULTS The resistance rates of K.pneumoniae to antimicrobial agents mostly increased 1996-2005.The resistance rates to piperacillin,cefazolin and cefuroxime remained at high levels(more than 50%),while which to cefotaxime(29.3-45.2%) and piperacillin/tazobactam(5.1-20.6%) were increased obviously.Carbapenems were the most active agents against the K.pneumoniae isolates.The resistance rates to ciprofloxacin increased from 14.4% to 35.8%.The detectable rate of extended-spectrum beta-lactamases-producing strains in K.pneumoniae increased from 30.1% to 42.0%.CONCLUSIONS The trend of resistance of K.pneumoniae to commonly used antimicrobials was upward 1996-2005.

Aime To study the anti-C. albicans activity of baicablin,and to explore its anti-C.albicans mechanism preliminarily. Method ① The minimum inhibitory concentration (MIC) and the minimum fungicidal concentration(MFC) of baicalin against C.albicans were determined by microdilution method. ② By means of incorporation experiment of isotope-labelled precursor, the incorporation inhibitation rates of [ 3H]-TdR,[ 3H]-UdR,[ 3H]-leucine were measured after treatment with various concentrations of baicalin respectively. Result ① The MIC and MFC of baicalin (above purity 98%) against C albicans(1?107 cfu?L -1) were both 1.0 g?L -1. The MIC and MFC of baicalin (above 98% purity) against C albicans(2.5?107 cfu?L -1) both 2.0 g?L -1. ② The dose of baicalin of 0.5, 1 and 2 MIC could obviously inhibit incorporation of the precursors and there were significant differences among the inhibition rate of three precursors incorporation (P0.05). Conclusion ① Baicalin had strong anti-C albicans activity in vitro. ② Baicalin(above purity 98%) could obviously inhibit incorporation of [ 3H]-TdR, [ 3H]-UdR and [ 3H]-leucine into C albicans and the incorporation inhibition rate of [ 3H]-UdR was highest among them, suggesting that the anti-C albicans mechanism of baicalin may be involved with the inhibition of DNA, RNA and protein synthesis.

OBJECTIVE To characterize clinical feature,frequency of isolation and antimicrobial susceptibility of bacterial pathogens isolated from patients with healthcare-associated bacterial meningitis(HABM).METHODS We review the charts of all patients in whom the diagnosis was based on(national) diagnostic criteria of healthcare-(associated) infections at Huashan Hospital from 1995 through 2004.The pathogens were routinely isolated,(identified) and susceptibilities against antimicrobial agents were determined by Kirby-Bauer methods.RESULTS During the 10-year study period,109 patients were treated for 120 episodes of HABM.Most of patients had a(history) of recent and remote neurosurgery.Fever was present in all patients,while nuchal rigidity and decrease consciousness were present in less than half of all patients.CSF opening(pressure,) white blood cell count and(protein) were elevated with predominance of neutrophils.A total of 120 strains were isolated from CSF specimen,Gram-positive bacteria and Gram-negative bacilli were accounted for 35.8% and(64.2%) of all isolates,respectively.Acinetobacter spp(24.2%),coagulase-negative staphylococci(22.5%),Klebsiella pneumoniae(12.5%),Pseudomonas aeruginosa(10%),Enterobacter cloacae(8.3%) and Staphylococcus aureas(7.5%) were the 6 most frequent isolates and resistance to the first line antibiotics was common among all pathogens isolated.(CONCLUSIONS) The most common risk factor for HABM is neurosurgery.Gram-negative bacilli and staphylococci are important causes of HABM,resistance to the first line antibiotics is common among all pathogens isolated.

Objective To explore weekly levels of serum CA125, P and β-HCG in pregnant women of 4-12 weeks and their relations with threatened abortion. Methods A total of 270 pregnant women with threatened abortion who received pregnancy test in our hospital were selected as research subjects in this study, and they were in threatened abortion group. 30 healthy pregnant women who received pregnancy test in our hospital during the same period of time were se-lected as research controls, and they were in normal pregnancy group. All pregnant women had a gestational age of 4-12 weeks; the two groups of patients were all given chemiluminescence immunoassay to dynamically monitor the levels of serum CA125, P and β-HCG. Changes of serum CA125, P and β-HCG levels in the two groups of pregnant women were observed, analyzed and compared. Results CA125 level in the normal pregnancy group was significantly lower than that in the threatened abortion group, and the difference was statistically significant(P<0.05). Levels of P and β-HCG in the normal pregnancy group were both significantly higher than those in the threatened abortion group, and the differences were statistically significant (P<0.05). Conclusion Serum CA125, P and β-HCG in the prediction and early diagnosis of threatened abortion have significant clinical values, which are worthy of attention and promotion.

ObjectiveTo evaluate “main line teaching-topic design” based classroom discussion method in immunology teaching. MethodsStudents of five-year class of pharmacology of Grade 2008 and Grade 2009 were selected to sit the innovating teaching.The teaching methods included main line teaching,topic design,classroom discussion and experimental operation.The evaluation of the effect was analyzed by the way of a questionnaire and comparing test scores.ResultsQuestionnaire survey results show that more than 73.5％ of experimental class students thought that the “main line teaching-topic design” based classroom discussion method helps to stimulate their learning enthusiasm and improve comprehensive ability.By T test,the difference of the average scores of experimental class and control class students was statistically significant ( P=0.0028 ).ConclusionThe “main line teaching-topic design”based classroom discussion method is accepted as an effective approach of immunology teaching and worth to extensive application.

Objective To characterize clinical feature, frequency of isolation and antimicrobial susceptibility of pathogens isolated from patients with nosocomial bloodstream infections in Huashan Hospital, Fudan University from 1995 to 2004. Methods The clinical data of all patients who were diagnosed with nosocomial bloodstream infections based on national diagnostic criteria of nosocomial bloodstream infections were retrospectively analyzed. The pathogens were routinely isolated and identified. Susceptibilities against antimicrobial agents were determined by Kirby-Bauer methods and analyzed by WHONET 5.0 software. Results During the 10-year study period, a total of 395 patients were diagnosed with nosocomid bloodstream infection with 435 strains isolated from blood specimen.Gram positive bacteria, Gram negative bacilli and fungi, accounted for 47.4%, 45.1 % and 7.6%,respectively. Coagulase-negative Staphylococci (21.4%), S. aures (17.9%), E.coli (13.6%), K. pneumoniae (10.8%), Candidaspp (7.4%), Enterococci (6.0%), Pseudomonasspp (6.0%) and Acinetobacter spp (3.7%) were frequently identified isolates. S. aures and coagulase-negative Staphylococci resistant to methicillin were 62.8% and 87.1%, respectively. The susceptibilities of cefotaxime and ceftazidime against E. coli and K. preumonine were 46%-78% and 27.7%-40.4%, respectively. Conclusions The Gram positive cocci are slightly more prevalent than Gram negative bacilli in nosocomial bloodstream infections and resistance to the first line antibiotics is common among all pathogens isolated. Candida spp is the fifth leading cause of nosocomial bloodstream infections.