OBJECTIVE To study the correlation between mutations of gyrA and parC genes and ciprofloxacin-(resistant) clinical isolates of Acinetobacter baumannii from Chengdu.METHODS The genes of gyrA and parC DNA in 28 ciprofloxacin-resistant and 2 ciprofloxacin-susceptible isolates of A.baumannii were amplified by PCR and then analyzed by restriction fragment length polymorphism(PCR-RFLP) and DNA sequencing.(RESULTS) Hinf Ⅰ digestion of the gyrA gene products of susceptible isolates(generated) two fragments,but resistant isolates(generated) one fragment.The parC gene products generated 2 fragments.DNA sequencing of 5 resistant isolates revealed mutations in gyrA gene that resulted in amino acid substitutions: Ser83→Leu and Ala88→Thr,especially,Ser83 point mutation accounting for the disappearance of sequence of Hinf Ⅰ.There was not any mutation in(gyrA) of 1 susceptible isolate;the substitution of Ser108→Ile in parC(gene) of 1 susceptible and 1 resistant isolates were identified,the remaining four isolates had more nosense mutations.CONCLUSIONS Compared with parC gene mutations,(gyrA) gene mutations of A.baumannii appears to be the main molecular mechanism responsible for ciprofloxacin resistance.The high-level ciprofloxacin resistance in A.baumannii probably needs a variety of mutations.

Acute Coronary Syndrome ; drug therapy ; Anticoagulants ; therapeutic use ; Humans ; Polysaccharides ; therapeutic use

Objective To investigate the effect of Xuefuzhuyu pill on blood glucose,sex hormone,insulin levels and HOMA-IR index in patients with polycystic ovary syndrome and infertility.Methods 59 patients with polycystic ovary syndrome and infertility from January 2014 to January 2015 in our hospital were selected and randomly divided into experimental group and control group,29 cases in each group,the control group was treated with clomiphene citrate capsules,the patients in the experimental group were given Xuefuzhuyu pill baseed on the treatment in control group,treatment period for three menstrual cycles,after the end of treatment,the levels of serum sex hormone levels,fasting blood glucose,insulin levels,HOMA index,uterine endometrial thickness,ovulation and pregnancy were detected.Results After treatment,compared with control group,in the experimental group,the serum levels of LH and T were significantly lower,and the serum levels of FSH,E2 and P were significantly higher,the difference was statistically significant(P<0.05),the serum anti-Mullerian hormone(AMH)content in the experimental group was significantly lower,the difference was statistically significant(P<0.05),the serum levels of FINS and HOMA-IR were significantly lower in the experimental group,the difference was statistically significant(P<0.05),the endometrial thickness of patients in experimental group was significantly increased,the number of follicles and ovarian volume were significantly decreased,the difference was statistically significant(P<0.05),the ovulation rate and pregnancy rate in the experimental group was higher,the difference was statistically significant(P<0.05).Conclusion Xuefuzhuyu pill can significantly reduce the serum LH,T,FINS,AMH and HOMA-IR levels in patients with polycystic ovary syndrome,which can improve the serum FSH,P,E2 levels,regulate sex hormone secretion,reduce insulin resistance,improve the ovulation rate and pregnancy rate,compared to single use of citric acid clomiphene capsules effect is more ideal.

Objective To study the lipids related indicators ,high-sensitivity C-reactive protein(hs-CRP) ,FIB and D-dimer levels in cerebral infarction patients .Methods 259 cerebral infraction patients(cerebral infraction group) and 210 healthy individuals(con-trol group) were enrolled in the study .Plasma lipids related indicators such as TC ,TG ,HDL-C ,LDL-C ,ApoA1 ,ApoB ,ApoE levels were measured by enzymatic colorimetric assay .Quantitative fluorescence immunoassay was used to determine serum level of hs-CRP .FIB levels were determined by using coagulation method ,and D-dimer levels by using immune turbidimetric method .Results Compared with the control group ,the TG ,LDL-C ,ApoA1 ,ApoE and hs-CRP levels were significantly higher in the cerebral infarc-tion group(P<0 .01) ,however ,the HDL-C level decreased significantly (P<0 .01) .For TC and ApoB levels ,there were no statis-tical differences between the two groups(P>0 .05) .Conclusion Lipids ,inflammation ,coagulation and fibrinolysis are closely relat-ed in the development of cerebral infarction ,and combined detection helps diagnose cerebral infarction .

Objective　To study the radiographic findings in the diagnosis of pulmonary lymphoma and pseudolymphoma. Methods　Eight patients with pulmonary lymphoma and 2 with pseudolymphoma were examined by X-ray film, tomography, and CT. Results　Single or multiple nodules or masses were observed in 8 patients with pulmonary lymphoma, shaggy borders or halo of ground-glass attenuation in 7 patients, 2 patients had multiple patchy infiltrates bilaterally, 2 had diffuse interstitial infiltrates and 1 had miliary nodules. Multiple consolidations with air bronchogram and without hilar and mediastinal lymphadenopathy were observed in 2 patients with pulmonary pseudolymphoma. Conclusion　Radiographic findings of pulmonary lymphoma were varied, the most common findings were the nodules or masses with shaggy borders or halo of ground-glass attenuation. The specific findings of pulmonary pseudolymphoma were multiple consolidations with air bronchogram and without hilar and mediastinal lymphadenopathy. The final diagnosis relied on pathology.

Objective To investigate the role of NFIC on the stimulation effects of cAMP-induced differentiation of stem cells from the apical papilla ( SCAPs) in vitro. Methods SCAPs isolated from dental papilla of human imma-ture third molars were cultured by enzyme digestion. SCAPs were transfected with lentivirus that overexpressed NF-IC gene ( ov-NFIC) or an empty vector ( LV-empty) and co-treatment with Forskolin. Mineralized nodule formation of each group was measured by alizarin red staining. Quantitative real-time reverse-transcription polymerase chain reaction was performed to test the expressions of RUNX2,ALP,OCN mRNA. Results Forskolin increased the ex-pression of Runx2, ALP, OCN mRNA as well as matrix mineralization in SCAPs, and the stimulation effects of For-skolin were enhanced by overexpressing NFIC gene. Conclusion The results indicate that NFIC can promote cAMP-induced differentiation of SCAPs.

Purpose: To enhance one's ability to diagnose intracranial microcystic meningioma. Methods: Fifteen cases of intracranial microcystic meningioma have been studied either clinicopathologically, or ultrastructurally or immunohistochemically. Results: The results indicate that electron microscopy and immunohistochemically are very helpful for the diagnosis of the tumor. There was no predilection as to location, however the tumor was more common on the base of skull. Vacuole-like structure and/or vesicular dilatation could be seen in the cytoplasm and capillaries could be observed in between the spindle cells by light microscopy. Under electron microscopy, the processes separated from each other and formed into a cystic structure, and bundles of collagenous fiber could be found in it. In immunohistochemistry, the stains with vimentin and epithelium membrane antigen (EMA) were positive. Conclusions: Intracranial microcystic meningioma has some characteristics under the microscope, immunohistochemistry is helpful in its diagnosis, and election microscopy can confirm this diagnosis.

OBJECTIVE: To study the general pattern and characteristics of the ADR induced by lidocaine.METHODS: A total of 44 ADR cases caused by lidocaine reported in CHKD during 2002～ 2006 were collected and analyzed statistically. RESULTS: Lidocaine-induced ADR were mostly occurred in local anesthesia and block anesthesia,especially in the first time medication and within ten minutes.ADR could involve multiple organs and systems,and the clinical manifestations were complicated and diversified,which were mainly allergic reactions or even death in severe cases.CONCLUSION: Clinical physicians and pharmacists should be alert to the ADR induced by lidocaine and they should stick to the principle of rational drug use.

Objective　To investigate the IL-6 signal transduction pathways and their regulation mechanism in a human myeloma cell line-U266. Methods　Electrophoretic mobility shift assay (EMSA) was used to detect the activation of the transcription factors (TFs)-STAT3 and NF-IL-6 by IL-6. Cells were treated with chemical agents or transfected with the expression plasmids for the two TFs or the anti-sense oligonucleotide for protein kinase involved in one IL-6 signal transduction pathway. The change of the activation state of another IL-6 signal transduction pathway was also exhibited by EMSA. Results　Two IL-6 signal transduction pathways (JAK/STAT and Ras/NF-IL-6) can be activated by IL-6 of different dose in U266 cells. When one of the two signal transduction pathways was up-regulated, the other one was down-regulated. Conclusion　There is an antagonistic effect between the activation of two IL-6 signal transduction pathways in U266 cells.

Objective: To investigate which step of IL-6 signal transduction pathways in myeloma cells can be taken as the acting target of the antagonists for IL-6. Methods: EMSA and immunoprecipitation were used to detect the activation of transcription factors(TFs)-STAT3, NF-IL-6 and protein kinase ERK in a myeloma cell line-Sko-007 by IL-6. then anti-sense expression plasmids and anti-sense ODN for these signal moleculars were constructed and designed,the effects of these anti-sense nucleic acids on IL-6 signal transduction in Sko-007 cells were analyzed by the same methods. Results: IL-6 signal transduction could be antagonized by these anti-sense nucleic acids at different extent.Conclusion: TFs or protein kinases in IL-6 signal trareduction pathways can be taken as the target for antagonists design.