OBJECTIVE:To optimize the extraction technology for Huangshen electuary.METHODS:In this experiment the optimum extraction technology for Huangshen electuary was investigated by the L9(34) orthogonal test with the content of Astragaloside Ⅳ as technology index.The effects of three factors including the extraction times,time length of extraction and solvent ratio were investigated.RESULTS:The best extraction technology for Huangshen electuary was as follows:the solid-liquid ratio was 1∶10 and the decoction was carried out for 3 times(2 hours/time).CONCLUSION:The optimum extraction technology for Huangshen electuary is stable and feasible.

OBJECTIVE:To establish a method for the dissolution determination of Benidipine hydrochloride tablets.METHODS:According to Chinese Pharmacopeia(2005 edition),Benidipine hydrochloride tablets were added into hydrochloride acid 0.1 mo?lL-1 at rotation speed of 50 r?min-1,then samples were obtained after 30 min.The absorbance of samples was detected at detection wavelength of 359 nm and accumulative dissolution was calculated.RESULTS:The linear range of benidipine hydrochloride was 5～30?g?mL-1(r=0.999 9)with an average recovery of 99.76%(RSD=0.47%).The accumulative dissolutions of 3 batches of samples were all above 80%.CONCLUSIONS:Established method is simple and reliable for the dissolution determina-tion of Benidipine hydrochloride tablets.

OBJECTIVE:To explore the construction effect of rational drug use monitoring system on the improvement of clini-cal drug use in the hospital. METHODS:The data about the construction of rational drug use monitoring system were collected from our hospital,including pharmacist workstation prescription check(check before prescription/medical order charging to realize warning in advance),clinical pharmacy management system prescription comment(realize prescription/medical order comment after-wards)and adverse drug reaction/adverse drug event(ADR)reporting information platform(realize online ADR reporting)during 2014-2015. The data was analyzed to evaluate the effectiveness of system construction. RESULTS & CONCLUSIONS:There were a total of 3 417 329 prescriptions audited by the pharmacist workstation within 2 years through improving system functions,includ-ing 7 315 prescriptions were returned to doctors to be modified,the percentage of which declined from 0.39% to 0.08%. The pass rate of prescription comment pre-judgment increased from 81.2% to 90.4% in 2015 by clinical pharmacy management system. The valid case number of ADR monitoring and reporting increased from 186 cases to 267 cases,involving all department of our hospi-tal. The construction of rational drug use monitoring system in our hospital can improve the standardization of prescription/medical orders,the level of rational drug use and the case number of ADR,which has achieved the expected results.

Now syndrome study becomes the important research content in our country' TCM field,normalization of the symptoms standardization of syndromes especially becomes scientific research focal point in this field,furthermore some studies exists the conditions of symptoms short of norm and standards of syndrome differentiation discordant,as well stagnation of liver-QI with deficiency of the spleen is clinical common syndrome,so this article carried out all round analysis and investigations on the modern literature of stagnation of liver-QI with deficiency of the spleen syndrome recent ten years,to aim at analyzing the symptom characteristic and standards of syndrome differentiation on stagnation of liver-QI with deficiency of the spleen syndrome,to provide the bases of standardization and normalization of stagnation of liver-QI with deficiency of the spleen syndrome.

Objective To compare the capabilities of culture method, polymerase chain reaction ( PCR) and serological test in identifying Mycoplasma pneumoniae infection in children with confirmed com-munity acquired pneumonia. Methods Bronchoalveolar lavage fluid and serum samples were collected from hospitalized children with community acquired pneumonia in Capital Institute of Pediatrics from March to May in 2016. Three methods, traditional culture method, PCR and serological test, were respectively used to de-tect Mycoplasma pneumoniae infection in those children. Statistical analysis was performed by using SPSS18. 0 software and chi-square test. Results Seventy-nine children with community acquired pneumonia were enrolled in this study. Eight (10. 13%) patients were diagnosed with Mycoplasma pneumoniae infec-tions by the traditional culture method with an average positive culture period of 21 days. Twenty-three (29. 11%) patients showed positive results by using PCR analysis, including the 8 patients identified by the culture method. Forty-one (51. 90%) patients were found to be positive for Mycoplasma pneumoniae infec-tions by the serological test. However, four negative samples identified by the serological test were confirmed to be positive by PCR analysis, including two positive samples confirmed by the culture method. Statistical analysis showed that the differences in positive rates detected by using the three methods were statistically significant. Conclusion It is recommended that both serological test and PCR analysis should be used in combination with clinical symptoms for a comprehensive assessment of Mycoplasma pneumonia infection in children.

AIM: In order to study the relationship between mitochondrial deficiency and Alzheimer's disease(AD), we used sodium azide, a specific inhibitor of cytochrome C oxidase(COX), to develop a cell model of mitochondrial complex IV deficiency and investigated the impairment of microtubules and microtubule-associated proteins. METHODS: Primary cultured hippocampal neurons of hewborn rats were exposed to sodium azide ,then cell viability was measured by MTT method; cell morphology, immunofluorecence-stained cellular microtubules and microtubule-associated proteins were observed by confocal microscopy. RESULTS: Primary cultured hippocampal neurons were exposed to 8-128 mmol/L sodium azide for 3-24 h, MTT absorbance decreased dose-and time-dependently. Exposed to 64 mmol/L sodium azide for 6 h, the processes of cells retracted, synapses disappeared, axons were shortened under contrast microscope. Meanwhile, microtubles were disassembled and became disorderly, the expression of microtubule-associated proteins were also reduced especially in the processes observed by confocal microscopy. CONCLUSIONS: Sodium azide inhibits the assembly and polymerization of tubulin in microtubules which may be reduced by low expression of microtubule-associated proteins in nerve cells. The damage of axons induced by microtubule collapse further blocks the intercellular signal transduction and intracellular material transportation which are important causes in cell death.

Objective To inspect the source of an outbreak with Mycoplasma pneumoniae (Mp).Methods We carried out real-time PCR to analyze specimens collected from pediatric patients in Beijing during January 2010 to May 2012,diagnosed as pneumonia or a respiratory infection according to clinical symptoms.These positive samples were analyzed by the M-P typing system(M:multiple-locus variable-number tandem-repeat analysis,MLVA; P:P1-restriction fragment length polymorphism analysis,P1-RFLP).Results Sixty-nine specimens were tested positive to Mp by the real-time PCR in 446 specimens from pediatric patients.The infection rate was 11.69％,15.56％ and 20.00％ respectively in 2010,2011 and the first half of 2012.According to the M-P system,11 distinct genotypes were identified from 69 positive specimens,M43562P1 and M53562P1 were the two main genotypes that showed an increasing trend from 2010 to 2011,and M33562P1 and M63562P1 showed an increasing trend from 2011 to 2012 in China.Conclusion During this international Mp epidemic,the infection rate of Mp was also increase in Beijing in 2011,and M43562P1 and M53562P1 were the two main genotypes.Among them,M43562 were consistent with pop genotypes in Europe,and M53562 were consistent with pop genotype in Israel.The M-P system would be valuable to monitor the epidemic of Mp in different countries in the world.

Objective To study the application of P1 adhesin protein epitopes in diagnosis of Mycoplasma pneumoniae(Mp) infected patient. Methods The major epitope(P1-534) of P1 adhesin protein were predicted by ProPred and ANTIGENIC according to its primary structure. The high value fragment was cloned into a constructed recombinant vector. The gene was induced to express fusion protein in E. coli host strain BL21(DE3) and the fusion protein was identified by Western blot. BALB/c mice were immunized with purified protein to test its immunogenicity. Then the purified protein was used as antigen to test the serum of Mp infected patient by ELISA, and compared with the Mp whole cell antigen. Results The P1-534 protein was successfully expressed and purified. ELISA data showed that P1-534 protein could elicit high levels of IgG in immunized mice, the sensitivity and specificity of P1-534 were determined to be 85.00% and 97.67%, while the Mp whole cell antigen were 72.50% and 74.42%. Conclusion The results conformed that the recombinant epitope has certain immunogenicity,and its sensitivity and specificity are better than Mp whole cell antigen. P1-534 protein can be used as an antigen for immunodiagnosis of Mp infection.

Objective To study the association between Mycoplasma penetrans (Mpe) infection and clinicopathology of IgA nephropathy (IgAN). Methods Blood samples of 118 IgAN patients, 90 patients with chronic kidney disease (CKD) and 89 healthy people were collected. Mpe DNA in serum was detected by PCR and positive samples were confirmed by Southern blotting. According to Mpe infection, IgAN patients were divided into positive and negative groups. Association between clinicopatholgical features of IgAN and Mpe infection was examined.Results Significantly higher Mpe positive rate was found in IgAN group as compared to CKD and healthy groups (16.0% vs 2.2% and 1.1%, P＜0.01). In Mpe positive group, 42.1% patients presented macroscopic hematuria, which was significantly higher than that in Mpe negative group (P＜0.01). While Mpe negative group had greater proteinuria, higher serum creatinine level, higher Lee grading of pathology compared to Mpe positive group. There were no differences of tubulointerstitial lesions and arteriole hypertrophy between two groups. Conclusions IgAN patients have higher Mpe infection rate than CKD patients and healthy people. Mpe positive IgAN patients have more macroscopic hematuria. Mpe infection may be associated with the pathogenesis of IgAN.

OBJECTIVE To analyze the resistance of Enterobacter cloacae AmpC ?-lactamase with/without being induced by imipenem(IMP),cefepime(FEP),ceftriaxone(CRO) and aztreonam(ATM).The ampD genes of mutant strains were sequenced. METHODS Five wild type strains and 5 hyper-inducible type strains of E.cloacae were selected and induced by the tested antibiotics in vitro.At the same time,antibiotic susceptibility tests,3-D test,isoelectric focusing(IEF) and inhibit experiment were detected to identify hyper-producing AmpC ?-lactamase.ampD Gene sequencing was preformed in part of mutant strains. RESULTS There wasn′t obvious alteration in MIC with IMP,FEP,CRO and ATM for wild type strains whether they were induced or not.But,for the hyper-inducible type,there was apparent increasing in MIC after antibiotics inducing,especially CRO and ATM,up to 10.7-128 times.The DNA sequences analysis in the mutation strains showed there existed the replacement of the single base in multiple sites,and a few sites of amino acid were altered. CONCLUSIONS Mutant sites in ampD gene sequences are identical even though antibiotics as inducer are different.