[Objective] To establish a method for the determination of paeoniflorin content in Kun'an Pills. [Methods] High pressure liquid chromatography (HPLC) was used. The chromatographic conditions were: Hypersil ODS column, acetonitrile-water (17 : 83) as mobile phase, detection wavelength at 230 nm and the flow rate being 1.0 mL/min. [Results] A good linearity of paeoniflorin was shown in the range of 0.096 8 - 0.484 0 ?g, r = 0.999 8; the average recovery was 97.84% and the relative standard deviation being 1.44%. [Conclusion] This method is simple and effective and can be used for the quality control for Kun'an Pills.

Objective To observe the therapeutic effect of Gegen Decoction plus Sini Powder for polycystic ovarian syndrome(PCOS) women with acne and to explore its possible therapeutic mechanism.Methods Seventy cases of PCOS women with acne aged 18-45 years were randomized into treatment group and control group,35 cases in each group.The treatment group was given Gegen Decoction plus Sini Powder orally and the control group was given Diane-35 orally.The treatment lasted for 12 weeks.After treatment,the skin lesions and symptom scores were observed.The body mass index (BMI),serum dihydrotestosterone (DHT),interleukin-6 (IL-6) and interleukin-8 (IL-8) were detected before and after treatment.Results (1) The markedly effective rate of the treatment group was 80.00％ and that of the control group was 57.14％,the difference being significant between the two groups(P ＜ 0.05).(2) After treatment,the total scores of the symptoms and the scores of each symptom such as sweating,sleeping and physical strength in both groups were decreased(P ＜ 0.01),and the decrease in the treatment group was superior to that in the control group(P ＜ 0.05).(3) The BMI and serum levels of DHT,IL-6 and IL-8 in both groups were significantly decreased after treatment (P ＜ 0.01),and the decrease in the treatment group was superior to that in the control group(P ＜ 0.05).Conclusion Gegen Decoction plus Sini Powder is effective for the treatment of PCOS women with acne,and the mechanism is probably related with the decrease of BMI and serum DHT,IL-6 and IL-8 levels.

Objective To explore the clinical effect of pressured rapid volume expansion in the treatment of hemorrhagic shock under the monitoring of central venous pressure(CVP).Methods Forty patients with hemorrhagic shock were randomly divided into two groups: the study group (groupⅠ,n=20) and the control group(groupⅡ,n=20).In groupⅠ,the patients were treated with rapid intravenous infusion by pressured soft fluid in bags under the CVP,and the patients received traditional transfusion method in groupⅡ.Results The average amount of transfusion in 30 minutes and the total amount in perioperative period were(1271?170) ml and(5311?410) ml in groupⅠrespectively,and in groupⅡ,the results were(721?140) ml and(3273?330) ml respectively.The recovery of systolic blood pressure(SBP),diastolic blood pressure(DBP),central venous pressure(CVP) and pulse oxygen saturation(SpO_2),the time of recovered urination and cure rate in groupⅠ were significantly better than those in groupⅡ.The mortality reduced in the study group.Conclusion With the monitoring of CVP,the pressured rapid volume expansion is an effective treatment for hemorrhagic shock.With the pressured rapid volume expansion,the circulating blood volume of patients can be recovered rapidly and the perfusion of important organs,tissues and cells be maintained.

Objective To observe the genetic damages relate d to occupational exposure to antineoplastic agents without special protective measures in exposed subjects.Methods The damages of DNA and chromosomes of peripheral blood lym-phocytes were determined by comet assay and cytokinesis-block micronucleus test in exposure group consisting of24nurses oc-cupationally exposed to antineoplastic agents without special protective measures and control group consisting of24female doc-tors without exposure to antineoplastic agents in oncology department in a certain hospital.Results The exposure group showed significantly higher micronucleus rate(13.25‰?5.17‰)compared with that of control group(3.79‰?2.19‰),P

Objective To investigate the difference of gene expression in two human gastric adenocarcinoma cell lines, 5-fluorouracil resistant cell line SGC7901/R and its parental cell line SGC7901, and to screen related genes of JAK/STAT signaling pathway by gene chip. Methods The mRNAs of two cell lines were extracted and purified. The two cDNA probes were made from these two mRNAs which were labelled by (biotin-)16-dUTP, hybridized with human JAK/STAT signaling pathway gene array and scanned for intensity, respectively. The acquired images were analyzed by software. Different expression genes were then screened out. The mRNA expressions of Stat3, NF-?B1 and bcl-x were analyzed by semi-quantitative RT-PCR, (respectively.) Results A parallel comparison between the gene profiles of JAK/STAT signalling pathway in two cell lines showed that a total of 70 genes were screened out whose expressive level was more than 2 folds in 5-flurouracil resistant cell line SGC7901/R and its parental cell line SGC7901. Among these genes, 40 were upregulated and the other 30 were down-regulated. The results of RT-PCR were consistent with those of microarray scanning. Conclusions The knowledge of gene expression profile of JAK/STAT signaling pathway, which was changed in 5-fluorouracil resistant cell line of human gastric adenocarcinoma, has proven to be useful for illustrating the multi-drug resistance mechanisms of gastric cancer.

OBJECTIVE To analyze the resistance of Pseudomonas aeruginosa (PAE) isolated from clinical specimen and provide the guidance for the clinical treatment. METHODS The P. aeruginosas infection status from Jun 2005 to Dec 2007 was reviewed retrospectively,and the results of susceptibility test in 286 strains of PAE were analyzed. RESULTS The drug-resistance rates to gentamicin,cefotaxime,and ceftriaxone in PAE were all above 60.0%,and that to cefoperazone/sulbactam,piperacillin/tazobactam sodium,amikacin and levofloxacin showing all higher sensitivity. The resistance rates to meropenem and imipenem were 17.1% and 18.5%,respectively. CONCLUSIONS P. aeruginosa is one of the main pathogenic bacteria in nosocomial infection. It's very important to strengthen the monitoring of drug-resistance of PAE and rationally antibiotics usage.

OBJECTIVE To investigate the resistance of meticillin-resistant Staphylococcus aureus(MRSA) and the occurrence of gene erm.METHODS ATB Staph and microdilute tests were performed to detect the susceptibility to 15 kinds of antibiotics in 50 strains of the S.aureus(SAU).Gene erm of these strains was detected by polymerase chain reaction(PCR).RESULTS There were no strains resistant to vancomycin,teicoplanin,fusidic acid and quinupristin-dalfopristin in 42 strains of MRSA detected.There were no strains sensitive to penicillin,oxacillin,gentamicin,tetracycline,ciprofloxacin and levofloxacin.Thirty-five strains habored gene erm in 42 strains of MRSA.The positive rate of gene erm was 83.3%.CONCLUSIONS The multiple-resistance of the MRSA is a serious issue.The resistance to erythromycin in MRSA is mediated by gene erm which encodes the methylase and changes the target site of drug action.

Objective To investigate the expression and relationship of Jab1 and P27kip1 in ovarian cancer cell HO-8910. Methods Cells were treated with serum starvation and release.The expression and distribution of Jab1 and P27kip1 were detected by western blot and subcellular fractionation.HO-8910 cells were transfected in vitro with pcDNA3.1-MYC-Jab1.Western blot as well as subcellular fractionation was used to detect the expression and localization of P27kip1.Results The growth of HO-8910 cells was blocked by serum starvation.P27kip1 increased while Jab1 decreased.The reverse changes were found after serum release.P27kip1 and Jab1 could form compound in HO-8910 cells detected by immunoprecipitation.48h after transfected by pcDNA3.1-MYC-Jab1,the expression of P27kip1 decreased and the distribution of P27kip1 translocated from nucleus into cytoplasma in HO-8910.Conclusion Jab1 may control the location and expression of P27kip1 through integrating with P27kip1,and participate in regulating the growth of ovarian cancer cells through interfering with the function of P27kip1.

OBJECTIVE To find out the distribution and durg resistance of the pathogens in 2008 in the 8th People′s Hospital of Guangzhou.METHODS Disc diffusion test(KB methods) was employed to study the antimicrobial susceptibility.WHONET 5.3 was applied for date analysis.RESULTS 208 Gram positive coccus strains accounted for(46.3%),241 Gram negative bacillus strains(53.67%) in A total of 449 pathogenic strains.Meticillin resistant strains accounted for 41.7%and Staphylococcus aureus and CNS for 55%.All the Staphylococcus strains were not Vancomycin-resistance.Escherichia coli and Klebsiella pnenmoniae strains producing extended spectrum-beta-lactamas accounted for 41.4%and 44.2%,but were highly sensitive to Carbapenem.Acinetobacter baumannii and Pseudomonas aeruginosa were highly sensitive to Carbapenem.CONCLUSIONS The resistance of antibiotics should be continuously monitored to provide basis for reasonable use of drugs in clinical practice and take effective evidence for the control of the problem.

ObjectiveTo study the effect of angiotensin Ⅱ type 1 receptor antagonist (ARB) losartan on reducing the incidence of stroke in patients which suffer from hypertension and atrial fibrillation(AF).MethodsProspective randomized analysis was used to divide one hundred and eighty hypertemion patients with atrial fibrillation into two groups.ARB treatment group was treated with losartan (n =90) and beta-blockers treatment group was treated with metoprolol ( n =90),all patients were treated for three years and followed up.Blood pressure,pulse pressure,incidence of stroke and myocardial infarction and mortality of cardiovascular events were evaluated.ResultsAfter antihypertensive treatment,blood pressure was reduced in two groups,the pulse pressure in losartan group was reduced obviously( all P ＜0.01 ).The incidence of stroke and myocardial infarction and mortality of cardiovascular events in losartan group were 22.2％,10.0％ and 13.3％,respectively,lower than that in metoprolol group 70.0％,40.0％ and 44.4％ ( all P ＜0.01 ).ConclusionLosartan reduced the incidence of stroke in the hypertension patients with AF.