Objective To explore the reliability and validity of the Chinese version of driver stress inventory (DSI). Methods Three hundred drivers were investigated with DSI. The structure validity,content validity and internal reliability were examined. Results (1)Except items 9,16 and 18, the others had good discrimination. (2) Six factors were extracted which could explained 45.277% of the total variance. The six factors were significantly correlated with DSI total score(r = 0.241～0.622, P<0.01). (3)The spilt-half reliability was 0.557, The six factors ' Cronbach alphas were 0. 569, 0. 631, 0. 799, 0. 675, 0. 587 and 0. 685 respectively. ConclusionDSI has good reliability and validity, and is an effective instrument to test drivers' stress.

Apoptosis ; drug effects ; Cell Division ; drug effects ; Esophageal Neoplasms ; pathology ; Humans ; Selenomethionine ; pharmacology ; Tumor Cells, Cultured

In recent years, more and more research shows that the pharmacokinetic parameter of traditional Chinese medicine can be affected by the disease states. It's possible that drug metabolic enzymes, transporters, cell membrane permeability and the change of microbes group could be interfered with physiological and pathological changes, which enables the pharmacokinetics of traditional Chinese medicine in the body to be altered, including the process of absorption, distribution, metabolism and excretion, and then the pharmacokinetic parameters of traditional chinese medicine are altered. It's found that investigating the pharmacokinetic of traditional Chinese medicine in the pathological state is more useful than that of in normal state because the great part of traditional Chinese medicine is mainly used to treat disease. This article reflects the latest research on the pharmacokinetic of traditional Chinese medicine in the disease state such as diabete, cerebral ischemia, liver injury, inflammatory disease, nervous system disorders and fever in order to provide certain reference for clinicians designing reasonable administration dose.
Animals ; Brain Ischemia ; drug therapy ; Chemical and Drug Induced Liver Injury ; drug therapy ; Humans ; Inflammation ; drug therapy ; Medicine, Chinese Traditional ; Nervous System Diseases ; drug therapy

Objective To observe tigecycline (TGC),minocycline (MH)and polymyxin B (PB)in vitro antibacterial activity of pan-resistant Acinetobacter baumannii (PDR-Ab)for clinical treatment,provide the basis for infection control.Methods Collected 76 patients’clinical specimens used for no repeat count of isolation and identification with pan-resistant Acineto-bacter baumannii in Shaanxi Provincial People’s Hospital from October 2013 to March 2013.Used tigecycline,minocycline and polymyxin B to do susceptibility testing with disk diffusion method (KB).Results 76 pan-resistant Acinetobacter bau-mannii ,sensitive to the rate for tigecycline and polymyxin B were 100% sensitivity rate of minocycline and intermediary rates were 67.11%,27.63%.Conclusion Tigecycline,minocycline and polymyxin B for the Pan-resistant Acinetobacter bau-mannii had good in vitro antibacterial activity.It provide a reference for clinical pan-resistant Acinetobacter baumannii infec-tions caused by diseases treatment.

Objective To investigate the correlation between plasma brain natriuretic peptide (BNP) ,central aortic systolic pres-sure with the degree of coronary artery lesion .Methods One hundred and fifty patients with coronary artery disease ,positive coro-nary angiographic results and without heart failure in the cardiological department of this hospital from March to June 2011 were selected and divided into the hypertension group (n=90) and the non-hypertension group(n=60) according to the blood pressure . The plasma BNP before angiography was detected by ELISA .The coronary lesion vessels and clinical scores were assessed after an-giography .The central aortic pressure before angiography was measured by the noninvasive measurement method and the diastolic blood pressure(DBP) ,systolic blood pressure(SBP) and pulse pressure(PP)were recorded .The correlation between PP and BNP was analyzed by Logistic regression .Results The plasma BNP concentration in the hypertension group was significantly higher than that in the non-hypertension group(P<0 .05) .The SBP level in 2 vessels ,3 vessels was significantly higher than that in the momal coronary group(P<0 .05) ,the PP in 3 vessels was significantly higher than that in the momal coronary group (P<0 .05) . The BNP level in 3 vessels ,2 vessels and single vessel of coronary artery lesion was significantly higher than that in the normal cor-onary artery group(P<0 .05) .The Logistic regression analysis on the PP influencing factors found that PP was closely related with the number of coronary artery lesion vessels ,lesion score ,LVEF and BNP ;the multiple correlation coefficient between PP with the number of coronary artery lesion vessels ,lesion score and BPN was 0 .91 ,its linear model was PP=0 .543 lesion vessels number +0 .656 lesion score + 0 .864 BNP .Conclusion PP of the central aortic pressure is a risk factor for the development and progress of coronary artery stenosis occurrence .BNP may be used as a plasma marker of the degree of coronary artery stenosis .

BACKGROUNDNeuroprotective strategies following cardiopulmonary resuscitation (CPR) are an important focus in emergency and critical care medicine. Matrix metalloproteinases (MMPs), especially MMP9 attracted much attention because of its function in focal brain ischemia/reperfusion injury. In the focal cerebral ischemia model in rats, SB-3CT can suppress the expression of MMP9, relieving brain edema, and there was no studies on global cerebral ischemia-reperfusion injury after CPR.

METHODSOne hundred and twenty rats were randomly assigned to sham-operated (n = 40), resuscitation treatment (n = 40), and resuscitation control (n = 40) groups. Sham-operated group rats were anesthetized only and intubated tracheally, while the resuscitation treatment and resuscitation control groups also received cardiac arrest by asphyxiation. In the resuscitation treatment group, SB-3CT was injected intraperitoneally after restoring spontaneous circulation (ROSC), defined as restoration of supraventricular rhythm and mean arterial pressure (MAP) > or = 60 mm Hg for more than 5 minutes. The resuscitation control group also implemented ROSC without injection of SB-3CT. The rats were executed and samples were taken immediately after death, then at 3, 9, 24, and 48 hours (n = 8). Brain tissue expression of MMP9 protein, MMP9 mRNA, water content, Evans blue content, TNF-alpha, IL-1, and IL-6 was measured, and the brain tissue ultramicrostructure studied with electron microscopy.

RESULTSIn the resuscitation control group, brain tissue expression of MMP9 protein and mRNA, water content, Evans blue content, TNF-alpha, IL-1, and IL-6 were significantly elevated at 3 hours, and peaked at 24 hours after resuscitation, when compared with the sham-operated group (P < 0.05). Tissue ultramicrostructure also changed in the resuscitation control group. By contrast, although all these indexes were increased in the resuscitation treatment group compared with the sham-operated group (P < 0.05), they were lower than in the resuscitation control group (P < 0.05).

CONCLUSIONSExpression of MMP9 protein and mRNA, water content, Evans blue content, TNF-alpha, IL-1, and IL-6 increased in rat brain tissue after CPR, indicating disruption of the blood-brain barrier and excess inflammatory reaction. MMP9 expression was reduced with SB-3CT, resulting in reduced brain injury.

Animals ; Blood-Brain Barrier ; drug effects ; Brain ; immunology ; ultrastructure ; Cardiopulmonary Resuscitation ; Cytokines ; analysis ; Heterocyclic Compounds, 1-Ring ; pharmacology ; Inflammation ; prevention & control ; Male ; Matrix Metalloproteinase 9 ; analysis ; genetics ; Matrix Metalloproteinase Inhibitors ; Neuroprotective Agents ; pharmacology ; RNA, Messenger ; analysis ; Rats ; Rats, Sprague-Dawley ; Sulfones ; pharmacology

To investigate the chemical constituents of the whole plants of Bidens bipinnata, the separation and purification of constituents were performed by chromatography on macroporous resin, silica gel, MCI and Sephadex LH-20. Their structures were elucidated by spectroscopic data as quercetin (1), quercetin-3-0-alpha-L-rhamnoside (2), keampferol-3-O-beta-D-glucopyranoside (3), keampferol-3-O-alpha-L-rhamnoside (4), 3', 5-dyhydroxy-3, 6, 4'-trimethoxyl -7-O-beta-D-glucopyranoside flavonoid (5), 7, 8, 3', 4'-tetraflavanone(6), (2S)- and (2R)-isookanin-7-O-beta-D- glucopyranoside (7a/7b), (2S)- and (2R)-3'-methoxy-isookanin-8-O-beta-D-glucopyranoside (8a/8b), 6, 7, 3', 4'-tetrahydroxyaurone(9), maritimetin (10), esculetin (11), 3-O-caffeoyl-2-methyl-d-erythrono-1, 4-lactone (12), (7S, 8R) balanophonin-4-O-beta-D-glucopyranoside (13), eugenyl-O-beta-apiofuranosyl-( 1"-6') -O-beta-glucopyranoside (14), and (+)-syringaresinol-4'-O-beta-D-glucopyranoside (15). Compounds 8, 13, 14, and 15 were isolated from this genus for the first time. Compounds 1 and 6 were potent inhibitors against HSC-T6 cells in vitro and compounds 1, 2, 6, and 7 were capable of decreasing the inflammatory cytokine production of macrophage cells in vitro.
Bidens ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization

OBJECTIVETo investigate the expressions of homeobox transcription factor-2 (CDX(2)) and E-cadherin and their relations to the clinicopathological characteristics of gastric carcinoma.

METHODSImmunohistochemistry was performed on 83 human gastric carcinoma specimens and 40 normal gastric mucosa specimens for examining the expressions of CDX(2) and E-cadherin, and the relations of their expression with the tumor differentiation, infiltration and metastasis were analyzed.

RESULTSAccording to the LaurAn classification, the positive expression rate of CDX(2) in intestinal type of gastric carcinoma was 56.86%, and 34.38% in the diffuse type, showing significant difference between the two types (P<0.05). The positivity rate of E-cadherin was also significantly different between the two types (66.67% vs 28.13%, P<0.01). In regard to tumor differentiation, the positivity of CDX(2) and E-cadherin expressions was significantly different between moderately to well differentiated tumors and poorly differentiated ones (P<0.01). The tumors infiltrating mucosal and submucosal layers were significantly different from those infiltrating the muscular and serous membrane layer in the positivity of CDX(2) and E-cadherin expressions (P<0.01), which were also different for the presence of lymph node metastasis (P<0.05). Regression analysis did not reveal significant correlations between CDX(2) and E-cadherin expression in gastric carcinoma (P>0.05).

CONCLUSIONThe abnormal expression of CDX(2) and E-cadherin plays an important role in the development of gastric carcinoma, especially the intestinal type. CDX(2) and E-cadherin may serve as useful markers to predict the prognosis of patients with gastric carcinoma.

Adult ; Aged ; Biomarkers, Tumor ; genetics ; metabolism ; CDX2 Transcription Factor ; Cadherins ; genetics ; metabolism ; Female ; Homeodomain Proteins ; genetics ; metabolism ; Humans ; Male ; Middle Aged ; Stomach Neoplasms ; genetics ; metabolism ; pathology

OBJECTIVETo explore the antitumoral effect of indirubin on androgen-independent prostate cancer PC-3 cells and its possible mechanisms.

METHODSWe measured the inhibitory effect of indirubin on the proliferation of prostate cancer PC-3 cells using MTT assay, detected their cell cycles by flow cytometry, and determined the expressions of the cell cycle regulatory protein cyclin D1 and its related downstream gene c-myc by Western blot.

RESULTSThe viability of the PC-3 cells was significantly decreased by indirubin in a concentration-dependent manner, reduced to 52. 2% and 13. 6% at 5 and 10 µmol/L, respectively. The cell cycle of the PC-3 cells was markedly inhibited by indirubin at 5 µmol/L, with the cells remarkably increased in the G0 and G1 phases and decreased in the S and G2/M phases. Meanwhile, indirubin also inhibited the expressions of cyclin D1 and c-myc in the Wnt signaling pathway.

CONCLUSIONIndirubin can suppress the proliferation of androgen-independent prostate cancer PC-3 cells, which may be associated with its inhibitory effect on the cell cycle and Wnt signaling pathway.

Antibiotics, Antineoplastic ; administration & dosage ; pharmacology ; Cell Cycle ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cell Survival ; drug effects ; Coloring Agents ; Cyclin D1 ; metabolism ; Dose-Response Relationship, Drug ; Genes, myc ; Humans ; Indoles ; administration & dosage ; pharmacology ; Male ; Prostatic Neoplasms, Castration-Resistant ; drug therapy ; pathology ; Proto-Oncogene Proteins c-myc ; metabolism ; Tetrazolium Salts ; Thiazoles

Objective: To explore the structural domains of the CENP-E protein that interact with Mps1 protein.Methods: Two recombinant vectors named pEGFP-CENPE2(containing 674-1085 amino acids of CENP-E protein) and pEGFP-CENPE 3(containing 1200~2134 amino acids of CENP-E protein) were transfected into human embryo kidney 293(HEK293) cells respectively.The respective energy transfer efficiency(Ef) between either EGFP-CENPE2 and Mps1,or EGFP-CENPE3 and Mps1 were detected by FRET through selective photobleaching of the acceptors.Results: Both recombinant proteins expressed in HEK293 cells transfected by the recombinant plasmids were found to co-localize with the Mps1 protein as confirmed by confocal microscopy.The Ef between EGFP-CENPE3 and Mps1 protein was [(12.63?0.48)%,n=30] and that between EGFP-CENPE3 and Mps1 protein was [(3.17?0.21)%,n=30] as revealed by the results from FRET,the result of FRET was confirmed by co-Immunoprecipitate(CO-IP) method.When compared with that between the control and Mps1,the Ef between EGFP-CENPE3 and Mps1 was significantly higher(p