Objective:To establish a method for the determination of Mg and Al in 5-layer co-extrusion bags and their migration from the bags into infusion by ICP-MS. Methods:The samples were digested by microwave digestion, and the contents of Mg and Al were determined by ICP-MS under certain working conditions. Results:Both Mg and Al had a linear range between 2. 5 and 20. 0 μg ·L-1, and r was 0. 999 6 and 0. 999 7, respectively. The average recovery of Mg was 92. 90% (RSD=3. 01%,n=9),and that of Al was 94. 15% (RSD=4. 11%,n=9). Conclusion:The method is accurate, sensitive and simple, and can be used for the determi-nation of Mg and Al in 5-layer co-extrusion bags and their migration from the bags into infusion.

Breast Neoplasms ; genetics ; pathology ; Chromosome Aberrations ; Chromosome Deletion ; Chromosomes, Human, Pair 1 ; Chromosomes, Human, Pair 17 ; Chromosomes, Human, Pair 9 ; Female ; Genome, Human ; Humans ; Nucleic Acid Hybridization ; methods ; Phyllodes Tumor ; genetics ; pathology

To establish a rat model of rheumatoid arthritis (RA) with kidney deficiency syndrome.

Chinese traditional patent medicine for promoting blood circulation and removing blood stasis(PBCRBS) originated from traditional Chinese medicine theory and had approved efficacy and safety standards. However, its compatibility regularity and anti-thrombotic mechanism is not clear. To analyze the compatibility regularity and anti-thrombotic mechanism of Chinese traditional patent medicine for PBCRBS, a statistical and bioinformatics analysis was carried out using traditional Chinese medicine inheritance support system (TICMISS, V2.0) and ingenuity pathway analysis (IPA). The compatibility regularity analysis shows that the most commonly used herb combinations are Danshen (Salvia miltiorrhiza Bge.), Chuanxiong (Ligusticum chuanxiong Hort.) and Honghua (Carthamustinctorius L.). The anti-thrombotic mechanism analysis reveals that 25 ingredients have an effect on 29 thrombosis related molecules which 23 molecules are related to inflammation response. Furthermore, there are 5 inflammation molecules (NOS2, PTGS2, IL6, TNF, IL1β) served as major targets. At the same time, Danshen, Chuangxiong and Honghua mainly used as sovereign herb or minister herb in the application of cardiovascular and cerebrovascular diseases. Therefore, Chinese traditional patent medicine for PBCRBS probably has an effect on anti-thrombotic activity through inhibiting the inflammatory response. In summary, the most commonly used herb combinations of Chinese traditional patent medicine for PBCRBS are Danshen, Chuanxiong and Honghua. Inhibiting inflammatory response, especially inflammation related molecules (NOS2, PTGS2, IL6, TNF and IL1β), is probably a new starting point to clarify the anti-thrombotic mechanism of Chinese patent medicine for PBCRBS.
Anti-Inflammatory Agents ; pharmacology ; Carthamus tinctorius ; Computational Biology ; Drugs, Chinese Herbal ; pharmacology ; Fibrinolytic Agents ; pharmacology ; Humans ; Inflammation ; drug therapy ; Medicine, Chinese Traditional

OBJECTIVETo observe the therapeutic effect of Hongbeiyegen [the root of Alchornea trewioides(Benth.) Muell.-Arg.] on alcohol-induced liver fibrosis (AF) in rats and explore its mechanism.

METHODSIn rats with AF, the serum levels of transforming growth factor beta1 (TGFbeta1) and tissue inhibitor of metalloproteinase-1 (TIMP-1) were detected along with examination of the changes in serum hyaluronic acid (HA), laminin (LN), procolagen type III (PC III), collagen type IV (C IV), glutamic-pyruvic transaminase (ALT) and glutamic-oxalacetic transaminase (AST) levels.

RESULTSCompared with the control group, Hongbeiyegen could significantly reduce the levels of TGFbeta1, TIMP-1, HA, LN, PC III, CIV, ALT and AST in rats with AF.

CONCLUSIONHongbeiyegen can relieve and ameliorate liver fibrosis possibly by inhibiting the expression of TGFbeta1 and TIMP-1.

Alanine Transaminase ; blood ; Animals ; Aspartate Aminotransferases ; blood ; Collagen Type III ; blood ; Collagen Type IV ; blood ; Drugs, Chinese Herbal ; therapeutic use ; Ethanol ; Euphorbiaceae ; chemistry ; Female ; Hyaluronic Acid ; blood ; Laminin ; blood ; Liver Cirrhosis, Experimental ; blood ; chemically induced ; drug therapy ; Male ; Phytotherapy ; Plant Roots ; chemistry ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Tissue Inhibitor of Metalloproteinase-1 ; blood ; Transforming Growth Factor beta1 ; blood

To detect cadmium ions, we constructed a specific microbial sensor and screened detecting cassettes and different fluorescence proteins. Blue fluorescence protein mTagBFP2 was selected as a reporter and a double-promoters model was used in the construction of the fusion reporter vector Pmer::merR-m-Pmer::mTagBFP2-pMD19-T. The reporter vector was then transformed into Escherichia coli MC4100 wild type strain. The medium, incubation time, initial density for induction, and the optimal detection range were determined. The specificity of the biosensor was also checked. The biosensor responded specifically to cadmium irons with low background, and the linear concentration range detection ranged from 0.1 to 75 μmol/L at the initial OD600 = 0.1 with 2 h incubation in IHMM medium. Thus we successfully constructed a specific biosensor to detect cadmium irons and provided useful strategies for development and optimization of microbial sensors to detect heavy metals.
Biosensing Techniques ; Cadmium ; analysis ; Escherichia coli ; Genetic Vectors ; Promoter Regions, Genetic

Objective To examine the prevalence of and risk factors for syphilis among men who have sex with men (MSM) in 16 cities/districts, 6 provinces in China. Methods Based on a previous survey on the entertainment place and population size of MSM, a cross-sectional study was conducted in 2007 using non-probability sampling method among MSM in 16 cities/districts in China.Information about the demography,risk behavior and syphilis infection was collected through questionnaires from MSM. Univariate and multivariate stepwise logistic regression model was constructed to evaluate independent factors associated with syphilis. Results A total of 4211 participants were recruited. The mean age of these participants was 28 years. Among them, 66.7% were self identified as homosexual, 72.5% were unmarried, and 76.4% had an education beyond senior middle school; in the past 6 months, 8.7% had sexual contact with more than 10 male sex partners, 5.6% had ever paid for male sex service, 11.3% had provided commercial sex service to males, and 18.9% had sexual contact with females, while condom was consistently used in only 36.3% of male-to-male anal sexual behavior. Syphilis was diagnosed in 10.6% of these participants. The risk factors independently associated with syphilis included being older than 25 years (adjusted OR = 1.7; 95% CI:1.3-2.0), local residency (adjusted OR = 1.3; 95% CI: 1.0-1.7), being recruited from a bar or a park (adjusted OR = 1.3; 95% CI: 1.1-1.7), having ever paid for a male sex service(adjusted OR = 1.5; 95% CI: 1.0-2.1),inconsistent condom use during male-to-male anal sexual behavior(adjusted OR = 1.2; 95% CI: 1.0-1.5 ), self reported sexually transmitted infection history (adjusted OR = 1.3; 95% CI: 1.0-1.7). Conclusions There is a high prevalence of syphilis in MSM in the 16 Chinese cities where male-to-male commercial sex service and unsafe sexual behavior are common. Further efforts are urgently needed to scale-up the prevention of and treatment program for syphilis among MSM, which should include syphilis and HIV screening as well as education on the use of condom.

Objective To investigate independent prognostic factors for overall survival (OS) in extensive disease small cell lung cancer (EDSCLC). Methods Between January 2003 and December 2006, 154 patients diagnosed with extensive stage small cell lung cancer were enrolled in this study.Prognostic factors such as gender, age, performance status, smoking history, weight loss, distant metastasis, the number of matastasis, brain metastasis, the cycle of chemotherapy and thoracic radiation therapy (TRT) for EDSCLC patients were evaluated by univariate and multivariate analysis. Results The median following-up time was 40. 5 months. The rate of follow-up was 92. 2%. The MST and overall survival rates at 3-year in smoking group and no-smoking group were 13 months, 11.8% and 17 months,22. 8%,respectively (χ2=3.40,P =0. 064);in ChT/TRT group and ChT group, they were 17. 2 months, 17.9%and 9.3 months,13.9%, respectively(χ2=10.47,P=0.001);and in the cycle of chemotherapy ≥4 group and ＜ 4 group, they were 16 months, 20. 1% and 9.3 months, 2. 9%, respectively (χ2=17.79,P=0. 000). By multivariate analysis, smoking history was a statistically significant unfavorable factor for OS in EDSCLC patients (versus no-smoking, hazard ratio (HR)=1.462, χ2=4.40, P=0.036). In addition, ≥4 cycles of chemotherapy and TRT were favorable prognostic factors ( ≥4 cycles vs ＜4 cycles, HR =0. 420,χ2 = 17. 17, P = 0. 000; ChT/TRT vs ChT, HR = 0. 634, χ2 = 6. 20, P = 0. 013). Conclusions Smoking is a independent unfavorable prognostic factor and ≥ 4 cycles of chemotherapy And TRT are independent favorable prognostic factors for OS in EDSCLC.

Objective To explore the diagnostic value of two-dimensional speckle tracking technology in the evaluation of right ventricular systolic function in patients with pulmonary disease .Methods Thirty patients with pulmonary heart disease were divided into two groups:group of compensated pulmonary heart disease(compensated group ) (n =15),group of decompensated pulmonary heart disease (decompensated group)( n =15).30 healthy subjects were enrolled in control group .The displacement of the tricuspid annulus at the midpoint(TADmid),the displacement of the tricuspid annulus at the free wall (TADfre) and the displacement of the tricuspid annulus at the septum (TADsep) were acquired,and simultaneous real-time three-dimensional ultrasound detection of right ventricular ejection fraction (RVEF) were taken.The correlation of TADmid with RVEF and pulmonary artery systolic pressure ( PASP) were analyzed.Results TADmid of the healthy control group,the compensated group and the decompensated group were(17.1 ±3.9)mm, (13.6 ±2.6)mm,and(9.5 ±3.2)mm respectively.TADfre were(21.1 ±3.0)mm,(17.6 ±4.2)mm,and (11.5 ±3.8) mm respectively.TADsep were(12.0 ±2.5) mm,(9.7 ±3.3) mm,and(7.4 ±2.7) mm respectively.RVEF were(56.3 ±8.2)%,(39.6 ±6.4)%,and(28.1 ±5.9)% respectively.PASP were (20.6 ±2.6) mm Hg (1 mm Hg =0.133 kPa), (63.3 ±5.6) mm Hg, and (82.5 ±11.2)mm Hg respectively.There were significant differences of TADmid , RVEF, and PASP among the 3 groups ( F =8.581,7.816,9.300,6.507,10.235, all P <0.05).TADfre, TADmid, TADsep and RVEF were all decreased in the compensated group comparing to the healthy control group ,while PASP was increased.The decrease of TADmid was the most significant ,while that of TADfre was the slightest .There were significant differences of TADfre,TADmid,TADsep,RVEF and PASP between the 2 groups(t=2.703,2.536,2.379, 2.817,3.026,all P<0.05).TADfre,TADmid,TADsep and RVEF of decompensated group reduced more significantly than the compensated group , while PASP was increased significantly .There were significant differences of TADfre,TADmid,TADsep,RVEF and PASP between the 2 groups(t=2.519,2.493,2.236, 2.621,2.985,all P<0.05);TADfre and TADmid were decreased more apparently in decompensated group than that in compensated group ,and so were TADsep and RVEF,while PASP were increased.There were significant differences of TADfre,TADmid,TADsep,RVEF and PASP between the 2 groups (t =1.947, 2.680,2.016,2.653,2.893,all P<0.05).There was significant positive correlation between TADmid and RVEF measured by real-time three-dimensional ultrasound (r =0.904,P <0.01 ).There was significant negative correlation between TADmid and PASP (r=-0.686,P<0.01).The cut-off point value of TADmid measured by speckle tracking technology for evaluation of RVEF <45% and<30% were 13.65 mm and 9.80 mm,respectively.The sensitivity were 94.4%and 90.0%respectively,and the specificity were 78.6%and 90.0%respectively.Conclusions TADmid is hardly affected by the external factors ,and it can better reflect the changes of right ventricular systolic function for patients with pulmonary heart disease .TADmid is positively correlated with RVEF measured by real-time three-dimensional ultrasound and negatively correlated with PASP.Further more,the correlations is significant.The three parameters can authenticate mutually ,and the combination of them can evaluate the right ventricular systolic function in patients with pulmonary heart disease precisely.

OBJECTIVETo observe the characteristics of uterine contraction and stages of labor during delivery under continuous epidural block anesthesia.

METHODSTotaling 213 parturients in spontaneous labor under epidural block anesthesia with dilated cervical orifice of 3 cm were monitored for the contraction cycle, duration, intensity and curve types of uterine contraction, and recordings were made for 30 min before and 30, 60 and 120 min after the anesthesia took effect, respectively. The duration of the active phase in the first, second and third stages of labor was compared between 421 cases with anesthesia and 237 without anesthesia.

RESULTSSignificant difference was noted in the objective indexes of uterine contraction recorded after anesthesia had taken effect (P<0.05) in comparison with those before anesthesia, suggesting significantly attenuated uterine contraction after anesthesia, whereas these indexes underwent no significant further variation as compared between different time points after anesthesia (P>0.05). The average active phase in the first stage was significantly shorter in anesthesia group than that in the control group (P<0.05), but the average duration of the second and third stages of labor differed little between the two groups with appropriate use of oxytocin under strict monitoring (P>0.05). The rates of obstetric forceps utilization and use of oxytocin were higher in anesthesia group than in the control group (P<0.05).

CONCLUSIONEpidural block anesthesia produces certain influences on uterine contraction and stages of labor during delivery, for which appropriate treatment measures may prove beneficial.

Adult ; Anesthesia, Epidural ; methods ; Anesthesia, Obstetrical ; methods ; Female ; Humans ; Labor, Obstetric ; physiology ; Pregnancy ; Time Factors ; Uterine Contraction ; drug effects ; Uterus ; drug effects ; physiology