OBJECTIVE:To establish a method of microbial limit test for Ofloxacin gel. METHODS:Test sample solutions were prepared by MnSO4,CaCl2 and MgCl2 gelout with different concentrations,the numbers of bacteria and control bacteria were detected by membrane filtration method,and the numbers of molds and yeasts were determined by conventional method. RE-SULTS:The conventional method showed the recoveries of Candida albicaus and Aspergillus niger were more than 70% after not treated by gel breaker;the membrane filtration method showed the recoveries of Escherichia coli,Staphylococcus aurus and Baci-lus subtilis were more than 70% after treated by 5% MnSO4,3% CaCl2 and 1% MgCl2;the membrane filtration method could de-tect the control bacteria after treated by gel breaker. CONCLUSIONS:Gel breaker with appropriate concentrations can effectively eliminate the antibacterial activity of Ofloxacin gel. The established method is suitable for its microbial limit test.

Disease Outbreaks ; Humans ; Influenza A Virus, H1N1 Subtype ; Influenza, Human ; epidemiology ; virology

Objective To investigate the anxiety and depresson status of pregnant women with gestationul diabetes mellitus (GDM), to explore the correlated factors and harmful result among these patients, and to provide a theoretic basis for prevention and treatment of the anxiety and depresson status of pregnant women with geststional diabetes mellitus. Methods 95 cases with GDM were investigated by using Self Rating Anxiety Scale (SAS) and Self-rating Depression Scale (SDS). Results Anxiety rate was 47.4% and depression rate was 33. 4% in patients with GDM. In the screening examination, patients with anxiety had blood glucose, fast blood glucose, and OGTT at 0 min., higher than those in patients without anxiety. And in the screening examination, patients with depression had higher levels of blood glucose, fast blood glucose, two-hour-later-after-a-meal blood glucose, OGTT at 0 min. and at 120 rain. than non-depression patients. Conclusions GDM Patients with anxiety and depresson have higher level blood glucose, and the control of their metalism is poor. It should pay a high attention to the negative mood of them and try to take effective intervention measures as early as possible to avoid the occurrence of a bad pregnant result.

OBJECTIVETo explore the inhibition and molecular mechanism of icaritin (ICT) combined doxorubicin (DOX) on human osteosarcoma MG-63 cells in vitro.

METHODSThe control group, ICT groups (10, 20, 40, 80, and 160 µmol/L), DOX groups (1, 2, 4, 8, and 16 µg/mL), and combination groups (20 µmol/ L ICT +1 µg/mL DOX, 20 µmol/L ICT +2 µg/mL DOX, 20 µmol/L ICT +4 µg/mL DOX, 40 µmol/L ICT +1 µg/mL DOX, 40 µmol/L ICT +2 µg/mL DOX, 40 µmol/L ICT +4 µg/mL DOX, 80 µmol/L ICT +1 µg/mL DOX, 80 µmol/L ICT +2 µg/mL DOX, 80 µmol/L ICT +4 µg/mL DOX) were set up. Human osteosarcoma MG-63 cells were respectively cultured and their effects on morphological changes were observed using inverted phase contrast microscope after 24-and 48-h intervention. The cell proliferation inhibition rate of each group was de- termined using CCK-8, and IC50 calculated. The MG-63 apoptosis rate was detected using Annexin V-FITC/ PI double dye flow cytometry. Expression levels of bcl-2, caspase-3, and p21 were detected using RT-PCR.

RESULTSICT and DOX could obviously inhibit the proliferation of MG-63 cell. Along with ICT concentration increasing from 10 µmol/L to 160 µmol/L, the cell proliferation inhibition rate also increased gradually from 9.67% ± 3.62% to 89.18% ± 9.66%. The IC50 was 46.93 µmol/L and 3.87 µg/mL respectively. ICT and DOX could cause either early or late stage apoptosis, down-regulate Bcl-2 gene expression, and up-regulate gene expressions of Caspase-3 and p21 respectively (P < 0.05). Aforesaid changes were more obviously seen in combination groups than in lCT groups and DOX groups (P < 0.05).

CONCLUSIONCT combined DOX had additive or synergistic inhibition effect for the proliferation of osteosarcoma MG-63 cells, which might be related with regulating gene expressions of bcl-2, caspase-3, and p21.

Apoptosis ; Bone Neoplasms ; metabolism ; pathology ; Caspase 3 ; metabolism ; Cell Line, Tumor ; drug effects ; Cell Proliferation ; Cyclin-Dependent Kinase Inhibitor p21 ; metabolism ; Down-Regulation ; Doxorubicin ; pharmacology ; Drug Synergism ; Flavonoids ; pharmacology ; Humans ; Osteosarcoma ; metabolism ; pathology ; Proto-Oncogene Proteins c-bcl-2 ; metabolism

This study is to establish an HPLC-DAD-ELSD method for simultaneous determination of 5 flavones and saponins in Rhizoma Anemarrhenae including neo-mangiferin, mangiferin, timosaponin B II, timosaponin B III and timosaponin A III. Samples were analyzed on a Merck Purospher STAR column(4.6 mm x 250 mm, 5 μm). The mobile phase consisted of acetonitrile( A) and 0. 1% formic acid (B) with gradient elution at a flow rate of 1.0 mL · min(-1). The column temperature was set at 40 °C. The DAD detector wavelength was set at 254 nm. The ELSD conditions were as follows: the nebulizing gas flow rate was 2.0 L · min(-1) and temperature of drift tube was 105 °C. The volume was 10 μL. The five compounds were well separated with good linear correlations. The mean recoveries were between 102.0%-104.0%. This method was quick and reliable which provides a foundation for quality control of R. Anemarrhenae.
Anemarrhena ; chemistry ; Chromatography, High Pressure Liquid ; instrumentation ; methods ; Drugs, Chinese Herbal ; analysis ; Flavones ; analysis ; Rhizome ; chemistry ; Saponins ; analysis

Objective To apply the method of Data envolop analysis(DEA) to evaluating the relative efficiency of cardiothoracic surgical ICU of 12 Grade Ⅲ-A hospital in Shanghai. Methods The input and output data of 12 cardiovascular surgical ICU were collected and analyzed by the way of questionnaires, work-hour measurement and data envelopment analysis(DEA). Results 5 of the 12 nursing units were inefficient. The inefficient nursing units could become relatively efficient by the improvement of all indexes. Conclusions The variation in nursing efficiency has been observed among 12 units. The optimization can be achieved through proper allocation of nursing resources. DEA should be applied to the analysis of nursing efficiency.

OBJECTIVETo investigae the function of the glass colorant on the color of the machinable infiltrated ceramics(MIC).

METHODSFive kinds of glass with different colorant were infiltrated through the aluminous matrix by heating the components to 1 100 degrees C for 2 hours. The specimens surface was polished, and their thickness was 0.5 mm.

RESULTSThe refractive index of the MIC infiltration glass was 1.59691 (587.6 nm, nd) . The most different parameter of the MIC color were L*, then a*, and b* had little difference . The parameters of the color space of MIC were: L*(64.55-71.46), a*(3.35-7.38), b*(10.00-12.41), Ca*b*(11.38-13.95), ha*b*(54.07-73.00). These were almost close to the color parameters of Vita In-ceram.

CONCLUSIONThis experiment proved that the glass colorant was changed the MIC color parameters, and the main function was on L*, then a*. The ceramic color was up to the requirement of clinic.

Aluminum Oxide ; Ceramics ; Color ; Dental Materials ; Dental Porcelain ; Glass ; Humans

OBJECTIVETo develop an objective bioassay for quantitative detection of HIV-induced cell-cell fusion for screening HIV entry inhibitors.

METHODSHL2/3 cells expressing HIV envelope proteins gp120/gp41, Tat, and other HIV proteins were co-cultured with HeLa-CD4-LTR-beta-gal cells expressing CD4 receptor and HIV LTR triggered reporter gene beta-galactosidase. The enzyme activities of beta-galactosidase were detected by a chromogenic substrate, chlorophenol red-beta-galactopyranoside (CPRG). Specific HIV entry inhibitors were used to validate the established detecting method.

RESULTSNo syncytium was formed by mixing HL2/3 and HeLa-CD4-LTR-beta-gal cells. However, the membrane could be fused and the Tat expressed by HL2/3 cells could bind to HIV LTR on HeLa-CD4-LTR-beta-gal cells and trigger the expression of beta-galactosidase. CPRG allowed quantitative and sensitive detection of the activity of beta-galactosidase. Further studies showed that HIV entry inhibitors could inhibit the activity of beta-galactosidase in a dose-dependent manner.

CONCLUSIONWe have developed a simple, cheap, objective and quantitative non-infectious cell-cell fusion bioassay that can be used to screen for anti-HIV agents targeting the virus entry from natural and synthetic compound libraries.

Biological Assay ; Cell Fusion ; Cell Line ; Coculture Techniques ; Drug Evaluation, Preclinical ; methods ; HIV Envelope Protein gp120 ; metabolism ; HIV Envelope Protein gp41 ; metabolism ; HIV Fusion Inhibitors ; chemistry ; pharmacology ; Humans ; beta-Galactosidase ; metabolism

Six thousand and forty-four subjects in Jiangsu community were enrolled to investigate the relationship between subclinical thyroid dysfunction and blood pressure. It was shown that subclinical thyroid dysfunction, including both the subclinical hyperthyroidism and subclinical hypothyroidism, had no relationship with increased blood pressure.

Objective To study the analgesic and anti-inflammatory effects in vivo of the total alkaloids in Stephania kwangsiensis (TARS).Methods Mice were respectively ig with high,middle,and low doses of TARS.The analgesic effects of TARS were evaluated by the formaldehyde induced pain method and tail-immersion response induced by hot water in mice,and anti-inflammatory effects were observed by cotton ball granuloma,egg white induced paw swelling method in mice.Results TARS could significantly inhibit formaldehyde induced pain in mice,reduce the hind licking times,extend tail withdrawal time induced by hot water,obviously reduced the formation of granulomatous in mice;Inhibited egg white induced paw swelling.Conclusion TARS has significant analgesic and anti-inflammatory effect.