A method for the determination of Pt、Pd、Ru、Rh 、Ir and Au in geological samples was studied. The sample was fused by sodium pe roxide and determined by a double focusing high resolution inductively coupled p lasma mass spectrometer “ELEMENT” after the separation and enrichment by co-precipitation with Te. Detection limit of the method was between 1～9ng/g and the recovery was ＞90%. Our analytical results for some domestic or interna tional reference materials were in agreement with the certified values.

Objective To investigate the optimum formulation and preparation process of Yuxiawenya dispersible tablets.Methods The formula of Yuxiawenya dispersible tablets were optimized by orthogonal design in terms of dispersible uniformity test.Results The tablets were prepared by moist granulation method with 1% polyvidone k30(PVPK30) ethanol solutionsas as moistening agent,microcrystalling cellulose(MCC) as diluents,and sodium croscarboxymethyl starch(CCMS-Na) as disintegrant.The disintegration time of dispersible formulation was

AIM:To establish the method for quality control of Suhong Tongluo Tincture(eugenol and methylsalicylate). METHODS: Gas phase chromatogram approach was used to determine the content of eugenol and(methylsalicylate.) The chromatogram condition consisted of 10% PEG-20M,carrier was N2(99.999%),temperature of the entrance of the column was at 230(?C),temperature of the detector was at 250(?C);column temperature was at 70(?C)(4 min),3(?C)/min→90(?C)(4 min),then 13(?C)/min→200(?C)(3 min);0.5 ?L Sample quantity. RESULTS: The linear range of methylsalicylate was 2.41-14.21 ?g,r=0.999 7,the average recovery was (99.76%),RSD=(2.64%(n=6).) The linear range of eugenol was 2.43-14.34 ?g,r=0.999 96,the average recovery was (99.33%),RSD=2.47%(n=6). CONCLUSION: This method is simple,quick,accurate and reliable for the quality control of Suhong Tongluo Tincture.

ObjectiveTo investigate the effects of 5-Aza-CdR on the transcriptional regulation through methylation of the DNA promoter protocadherin 8(PCDHg) gene in pancreatic cancer cell line Capan-2.The Capan-2 retardation in growth rate and apoptosis were assessed in when administered 5-Aza-CdR and the chemotherapy agent,gemcitabine.MethodsMTT and flow cytometry were used to analyze the cell growth inhibition and apoptosis when treated with 5-Aza-CdR or in combination with gemcitabine.Methylation-specific PCR,RT-PCR and western blot were performed to detect methylation state,mRNA and protein respectively of PCDH8 gene in 5-Aza-CdR-treated Capan-2cells.Results Capan-2 cells treated with 5-Aza-CdR showed a slower growth rate,and a significant growth inhibition when given both 5-Aza-CdR in combination with gemcitabine.Compared with single drug administration and control,5-Aza-CdR together with gemcitabine can induce a stronger apoptosis signal.Different concentrations 5-Aza-CdR of were able to reverse methylation,restore mRNA and protein levels of PCDH8 in Capan-2.Conclusion5 Aza-CdR may demethylate the PCDH8 gene,which would effectively remove the gene silencing caused by high methylation,and thus induce gene mRNA transcription and protein expression to inhibit cell growth and have collaborative antitumor functions with gemcitabine.

Objective To choose the optimum extraction process for capsule of Buyang Huanwu.Methods With the orthogonal method,the main factors effecting the water-extraction process,such as the quantity of water,the time,pH and degree for decoction,were reviewed according the content of total glycoside and Astragalus Glycoside A.Results The optimum condition of water-extraction was extracting with 8 times amount of water for the first time and 4 times amount for the second and third time,1 hour for each time,pH was 12.Conclution The experimental results provide the basis for the water extraction process for capsule of Buyang Huanwu.

Objective To establish ultra-high performance liquid chromatography-evaporative light scattering detector (UPLC-ELSD) method to determine the content of astragaloside in Guiqi Yiqi Yangxue Mixture and optimize the best water decoction process of the mixture.Methods The UPLC-ELSD conditions to determine the content of astragaloside in the mixture were as follow.The method was carried out on a Waters Acquity UPLC BEH C18 column (2.1 mm ×50 mm,1.7 μm) by using acetonitrile-water (35∶65) as mobile phase, and the flow rate was 0.3 mL/min and the column temperature 30℃.The parameter of ELSD:the drift tube temperature was set at 60℃, and the gas flow rate of N2 2.0 L/min.The content of paeoniflorin in the mixture was detected by previously established HPLC method.The orthogonal test was designed to optimize the water decoction process of the amount of water (A), decoction time (B) and decoction times (C), and the extract yield and the contents of astragaloside and paeoniflorin were evaluated as the comprehensive markers for the purpose.Results The UPLC-ELSD determination of astragaloside had a good linear relationship (r =0.9999), its mean recovery was 103.0%, and it had a good precision, specificity and repeatability.The orthogonal experimental results showed that decoction times (C) >the amount of water (A) >decoction time (B) were major factors affecting the decoction process in order and the ANOVA result showed that decoction times has significant effect on the decoction process (P<0.05).The optimal process of Guiqi Yiqi Yangxue Mixture was adding eight-fold water each time to decoct twice for 1.5 h totally.Conclusion This optimized water decoction process is feasible and stable, and suitable for industrialized production.

Objective To study comparatively the clinical efficacy of pelvic floor muscle exercise (PFMlE)and surgical therapy in women with moderate stress urinary incontinence(SUI),in order to provide theoretical reference for finding an appropriate SUI treatment method. Methods 114 cases of women with moderate SUI were randomly divided into the treatment group and the control group. The control group Wag given surgical thempy. while the treatment group was given the PFME treatment. After 12 weeks the clinical efficacy and quality of life of the two groups were evaluated, the cost-benefit was analyzed. Results The total effective rate of treatment group was 86.2%.higher than 83.9% of the control group. Compared with before treatment, the I-QOL scores of the two groups increased significantly, the ICIQ scores of the two groups decreased significantly, and the treatment group was significantly different compared with the control group. The cost-benefit analysis showed that the total medical cost and the spending cost of the total clinical effective rate increased l percent and the I-QOL increased 1 score were significantly lower than that of the control group. Conclusions The PFME therapy of women with moderate SUI is the preferred treatment and it is worthy of promotion and application.

To use Agrobacterium rhizogenes-induced hairy roots to create new germplasm of Dianthus caryophyllus, we transformed D. caryophyllus with A. rhizogenes by leaf disc for plant regeneration from hairy roots. The white hairy roots could be induced from the basal surface of leaf explants of D. caryophyllus 12 days after inoculation with A. rhizogenes ATCC15834. The percentage of the rooting leaf explants was about 90% 21 days after inoculation. The hairy roots could grow rapidly and autonomously in liquid or solid phytohormone-free MS medium. The transformation was confirmed by PCR amplification of rol gene of Ri plasmid and silica gel thin-layer chromatography of opines from D. caryophyllus hairy roots. Hairy roots could form light green callus after cultured on MS+6-BA 1.0-3.0 mg/L + NAA 0.1-0.2 mg/L for 15 days. The optimum medium for adventitious shoots formation was MS + 6-BA 2.0 mg/L + NAA 0.02 mg/L, where the rate of adventitious shoot induction was 100% after cultured for 6 weeks. The mean number of adventitious shoot per callus was 30-40. The adventitious shoots can form roots when cultured on phytohormone-free 1/2 MS or 1/2 MS +0.5 mg/L NAA for 10 days. When the rooted plantlets transplanted in the substrate mixed with perlite sand and peat (volume ratio of 1:2), the survival rate was above 95%.
Agrobacterium ; Chromatography, Thin Layer ; Culture Media ; Dianthus ; growth & development ; Plant Growth Regulators ; Plant Leaves ; Plant Roots ; growth & development ; Plants, Genetically Modified ; Rhizobium ; Tissue Culture Techniques ; Transformation, Genetic

Objective To evaluate cerebrospinal fluid adenosine deaminase(CSF-ADA)activity in the diagnosis of tuberculous meningitis(TMB), and to observe its dynamic changes. Methods A total of 160 patients were included and were divided into two groups: 76 cases of TBM and 84 cases of non-TBM.Among the cases of non-TBM, there were 36 cases of bacterial meningitis, 30 cases of viral meningitis and 18 cases of cryptocoocal meningitis. All the patients were measured with their CSF-ADA activity by Enzymecoupled assay(Trinder method)and 47 patients of TBM were measured again after 2 weeks' and 6 weeks'antitubercular therapy. Results were expressed as(-x)± s. Mann-Whitney U test and paired-samples t test were used. Results CSF-ADA activity in TBM group was(12.9 ±6.4)U/L, while that in the non-TBM group was(6.0 ± 4.1)U/L, the difference was of statistical significance(U = 7.860, P ＜ 0.05). With the cutoff value of 9 U/L, the sensitivity and specificity to differentiate TBM from non-TBM was 84.21% and 83. 33%, respectively. CSF-ADA activity decreased in TBM patients after antitubercular treatment.Conclusions CSF-ADA activity can be an effective laboratory marker for early differential diagnosis of TMB with the cut-off value of 9 U/L. Dynamic changes of CSF-ADA activity may be a indicator for the effect of antitubercular treatment.

Objective To learn the various clinic characteristics of newly T tuberculosis (TB) patients ,investigating the preven-tion and treatment knowledge of TB patients ,in an effort to provide scientific evidence for targeted prevention and control meas-ures .Methods Retrospectively analyzing the common demographic characteristics of 648 newly and 434 old TB patients from Sep-tember 2011 to September 2012 ,diagnostic information ,the awareness on the prevention and treantment ,drug use situation and so on .Results Among these patients ,most of them were males(60 .2% ) ,the middle age and the young were the majority (77 .8% ) , the disease areas were mainly rural ones (61 .6% ) ,and manual workers (65 .4% ) ,secondary pulmonary TB was in the majority (72 .8% ) ,40 .0% (52/130) of the patients with TB pleuritis were accompanied by pulmonary TB .TB patients usually combined with pneumonoconiosis(8 .0% ) ,diabetes(3 .6% ) ,asthma(4 .3% ) and some other fundamental diseases .The old TB patients had more prevention and treatment knowledge about TB than those newly patients (P<0 .05) .The major source of newly patients about the knowledge were mainly from their relatives and friends (30 .3% ) ,whereas the old patients from teaching of medical care (36 .9% ) .The main reasons for irregular usage of medicine came from the lack of knowledge about the course period of treatment (45 .3% ) ,and the disappearing of TB symptoms (30 .8% ) .Conclusion In the less developed rural areas ,the young and middle aged males who mainly done physical work were the majority patients .These newly patients have little prevention and treatment knowledge about TB .Comprehensive hospitals played an important role in transmission of TB knowledge .In the process of educa-tion ,we should pay special attention on the following less known but essential points :mode of transmission ,protective measures , course period of treatment ,monitoring side effect ,giving out free medicine ,and the prognosis of TB .