Objective To study the effects of Grape Procyanidins(GPC)on hemorheology in long distance runner.Method In vitro study: 22 long distance runners were divided into two groups randomly,the experimental group and control group.With ten days period,the experimental group was given GPC 200 mg per day;while the control group were given the capsule of starch 200 mg per day.In vivo study: the vein blood samples were taken from 5 long distance runners and every example was divided into five parts,and then treated with different concentrations of GPC or H2O2.Items of the hemorheology such as Er,HCT,Eb,Ep,PFC and VAI were tested both in vivo and vitro before and after the study.Results in vitro study: all items of the experimental group showed significant decline at then end of the study than those before the study.The contents of Er,Eb and Ep before the study(6.830?0.164,4.145?0.177,1.647?0.020,respectively) were significantly higher than those after the study(6.759?0.158,4.088?0.173,1.621?0.013,respectively)(P

Aconitum ; poisoning ; Animals ; Disease Models, Animal ; Female ; Hemoperfusion ; methods ; Male ; Plant Poisoning ; therapy ; Rabbits

Objective To investigate the clinical distribution of carbapenem-resistant Enterobacteriaceae(CRE)strains separated in this hospital and the situation of its production of carbapenem enzyme.Methods The production of carbapenem enzyme by CRE strains was confirmed by using modified Hodge test,the situation of the production of metallo-beta-lactamases by CRE strains was screened by using imipenem-EDTA double-disk synergy test,and the clinical distribution of CRE strains was retrospectively ana-lysed.Results 37 strains of CRE isolated in this laboratory were screened by using instrument method and verified by using disk diffusion (K-B)method.It showed an increasing trend from 2012 to 2014 in the amount of CRE strains.In terms of bacterial spe-cies,K.pneumonia(1 6 strains)was the main kind of carbopenems-resistant strains,followed by E.coli(6 strains),Ser.marcescens(6 strains)and E.cloacae(4 strains).CRE strains were mainly isolated from geriatric ward and intensive care unit(ICU).Sputum,u-rine and blood specimen were key sources of CRE strains.Modified Hodge test confirmed that 36 strains of CRE were the strains that can produce carbapenemase,including 4 strains of K.pneumonia,3 strains of E.cloacae,and 1 strain of E.asburiae,and strains producing metallo-beta-lactamases were confirmed by using imipenem-EDTA double-disk synergy test.Conclusion Elderly patients with underlying diseases are susceptible population of CRE hospital infection and are primary preventive targets.The principal mechanism of carbapenem-resistant CRE strains in this hospital is the production of carbapenemase and production of metallo-β-lac-tamases in a small number of strains.

A comparative study on the glycolic acid oxidase (GO) of the domestic Spirulina(Arthrospira) platensis (S_(1)) from alkaline lake in Erdos Plateau and the imported S. (A.) platensis (S_(2)) and S. (A.) maxima (S_(3)) as well is made with colorimetric method. The results show that activity of GO (25℃, pH 8.0) of S_(1), S_(2 )and S_(3) is 70.9 U/gFW, 59.6 U/gFW and 80.9 U/gFW respectively; the GO's optimum temperature of S_(1)、S_(2) and S_(3 )is 30℃; the GO's optimum pH value of S_(1 )is 8.6,while that of S_(2 ) 8.2 and that of S_(3) 8.4; the GO of S_(1 )is stable from 0℃ to 35℃ and from pH 7.6 to pH 10.0, while that of S_(2) from 0℃ to 30℃ and from pH 8.0 to pH 9.0 and that of S_(3) from 0℃ to 35℃ and from pH 8.0 to pH 8.6. Adaptive range of S_(1) GO for temperature and pH is wider, and activity at low and high temperature and under strong acidand alkali conditions is higher than that of the imported species.

According to ICH, Chinese Pharmacopoeia and supplementary requirements on the separation and purification of herbal extract with macroporous adsorption resin by SFDA, hexane, acetidine, ethanol, benzene, methyl-benzene, o-xylene, m-xylene, p-xylene, styrene, diethyl-benzene and divinyl-benzene of residual organic solvents and macroporous resin residues in Akebia saponin D were determined by headspace capillary GC. Eleven residues in Akebia saponin D were completely separated on DB-wax column, with FID detector, high purity nitrogen as the carry gases. The calibration curves were in good linearity (0.999 2-0.999 7). The reproducibility was good (RSD < 10%). The average recoveries were 80.0% -110%. The detection limit of each component was far lower than the limit concentration. The method is simple, reproducible, and can be used to determine the residual organic solvents and macroporous resin residues in Akebia saponin D.
Chromatography, Gas ; instrumentation ; methods ; Drug Contamination ; prevention & control ; Organic Chemicals ; analysis ; Reproducibility of Results ; Resins, Synthetic ; chemistry ; Saponins ; analysis ; isolation & purification

Objective To study the important virulence regulation genes of Brucella,and to understand their function.Methods Quantitative RT-PCR was used to quantify their relative transcription profiles under stress conditions and during macrophage cell infection.Results These genes were activated at different levels under these conditions and during cell infection,indicating their roles in pathogenesis at different srage of infection.Conclusion The transcription profiles of these genes have different effects about their functions.

Objective To explore the alterations of protein phosphatase-2A (PP-2A) in lymphocytes in mild cognition impairment (MCI) and Alzheimer's disease (AD).Methods The activity PP-2A of was measured by ~(32)p liquid seintillography for incorporated radioactivity in control group(n=11) , the MCI group(n=11),and the AD group(n=11).The expression of PP-2A was determined by Western blot.Results In the control group,the activity of PP-2A (1.01?0.09) and the expression of PP-2A (0.96?0.07) were high while in the MCI group,the activity of PP-2A (0.71?0.12) and the expression of PP-2A (0.80?0.05) were decreased (both P

OBJECTIVE:To establish a method for the determination of 7 residual solvents(ethanol,n-hexane,benzene,tolu-ene,xylene,styrene,divinylbenzene)in Liuwei dihuang glycoside. METHODS:The column was DB-624 capillary column,carri-er gas was nitrogen,flow rate was 5.0 ml/min;detector was a hydrogen flame ionization detector with temperature of 250 ℃(pro-grammed temperature);equilibrium temperature was 80 ℃,sample loop temperature was 90 ℃,and transfer line temperature was 100 ℃;the equilibrium time of vial heating was 30 min,sample loop filling time was 0.05 min,injection time was 1.0 min;the carrier gas pressure was 95 kpa,and the vial pressure was 60 kpa. RESULTS:The linear range was 25-500 μg/ml for ethanol(r=0.998 7),0.025-10μg/ml for n-hexane(r=0.998 8),0.025-10μg/ml for benzene(r=0.999 9),0.1-40μg/ml for toluene(r=1.000 0),0.25-100 μg/ml for xylene(r=0.999 9),0.5-500 μg/ml for styrene(r=1.000 0) and 0.5-500 μg/ml for divinylbenzene (r=1.000 0);RSDs of precision,stability and reproducibility tests were lower than 4%;recoveries were 99.60%-102.70%(RSD=1.08%,n=9),90.70%-100.30%(RSD=4.51%,n=9),100.10%-109.80%(RSD=3.82%,n=9),99.50%-110.00%(RSD=4.40%,n=9),100.00%-109.10%(RSD=3.50%,n=9),93.40%-102.30%(RSD=3.73%,n=9) and 99.70%-101.70%(RSD=0.79%,n=9),respectively;the low limits of detection were 1.000,0.025,0.025,0.025,0.100,0.025,0.250 μg/ml respectively. CONCLUSIONS:The method is simple,stable and reproducible,and can be used for the determination of residual solvents(etha-nol,n-hexane,benzene,toluene,xylene,styrene,divinylbenzene)in Liuwei dihuang glycoside.

OBJECTIVETo establish the method for determining polysorbate 80 in Reduning injection by HPLC-ELSD, and to control the mass of polysorbate 80 in Reduning injection.

METHODIt was performed by HGPC-ELSD with TOSHTSK-GEL G4000PWxl (7.8 mm x 300 mm, 10 μm). Water was used as mobile phase, the flow rate was 0.7 mL x min(-1), and the temperature was set at 30°C. The evaporated light scattering detector was adopted. The drift tube temperature was 55°C, and nitrogen was used as carrier gas, with the flow rate of 2.0 L x min(-1) and gain of 1.0.

RESULTThe calibration curve showed good linearity of polysorbate 80 in the test range from 1.01 to 15.20 g x L(-1) (r2 = 0.999 3). The recovery rate was 98.10% with RSD of 2.0%.

CONCLUSIONThe method is simple, rapid, accurate and reliable and suitable for the determination of polysorbate 80 in Reduning injection.

Calibration ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; chemistry ; Injections ; Polysorbates ; analysis ; Reproducibility of Results ; Time Factors

Objective To investigate the inhibitory effect and mechanism of rosiglitazone on chemokines secretion in renal tubular epithelial cells (HK-2) stimulated by lipopolysaccharide (LPS). Methods Cells were divided into four groups: control (CON), LPS (1 mg/L),rosiglitazone (10 μmol/L), rosiglitazone (10 μmol/L) +LPS (1 mg/L). MCP-1 and IL-8 expression was measured using real time PCR and ELISA. PPARγ was knockdown by RNAi to investigate whether the inhibitory effect of rosiglitazone was PPARγ-dependent or -independent. The NF-κB in nucleus was detected by Western blotting. The DNA binding activity of NF-κB was determined by electrophoretic mobility shift assay. Results Compared with CON group, the expressions of IL-8 and MCP-1 were increased by (4.30±0.45) and (4.80±1.29) times in mRNA level, (1.39±0.18)and (2.11 ±0.47) times in protein level, respectively, in LPS-stimulated HK-2 cells (P＜0.05).Application of rosiglitazone followed by LPS significantly reduced IL-8 and MCP-1 secretion compared with LPS group (decreasing by 66.37% and 71.88% in mRNA levels, while 41.68% and 47.87% in protein levels) (P＜0.05). In pcDNATM 6.2-GW/EmGFP-miPPARγ transfected cells, IL-8and MCP-1 only were decreased by 18.16% and 16.83% in mRNA level, while 11.39% and 11.86%% in protein level in rosiglitazone pretreated group, showing no significant difference compared with LPS group. Rosiglitazone did not block NF-κB nuclear translocation while significantly inhibiting the DNA binding activity of NF-κB. Conclusions Rosiglitazone inhibits the expressions of MCP-1 and IL-8 via a PPARγ-dependent mechanism in HK-2 cells, resulting from inhibition the DNA binding activity of NF-κB.