Objective To investigate the relationship between the HIF-1? expression and tumor biological characteristics in non small cell lung cancer(NSCLC). Methods The expression of HIF-1? in NSCLC tissues was evaluated by immunohistochemical method. Results The positive rate of HIF-1? expression in NSCLC was 71.11%, and significantly higher than that in normal lung tissues(P

Objective To investigate the expressions of Cycloxygenase-2(COX-2),vascular endothelial growth factor(VEGF) in non-small cell lung cancer(NSCLC) to explore the relationships between them and the tumor biological characteristics,tumor angiogenesis in NSCLC.Methods The expressions of COX-2,VEGF and the microvessel density(MVD) were detected by immunohistochemical staining.Results The positive rates of COX-2 and VEGF expression in NSCLC tissue were 55.5% and 66.7% respectively,with significantly higher than those of normal lung tissue(all P

The influence of cimetidine on the pharmacokinetics of ftorafur ( FT-207 ) in 9 rats after intragastric administration were investigated with cross-over design. The concentration of ftorafur in serum was determined by reversed-phase HPLC. Its curve of concentration vs time was fit to one compartment opened model. The serum concentrations and areas under the curve ( AUC ) vs time were increased when cimetidine orally administered daily for 5d or single dose. The peak of serum and AUC of ftorafur were increased by 21 .0%(P

The pharmacokinetics of alprazolam in 18 rats was studied by using reversed-phase HPLC. The pharmacokinetic characteristics were fit to one compartment opened model after intragastric administration of alprazolam at doses of 50,20 and 2 mg ? kg-1, respectively. The absorbing and eliminating parameters between the three groups were no significant difference. Mean of Ka was 3. 3454 h-1,Ke 0. 3873h-1,T1/2Ka 0. 29 h, T1/2Ke 2.61 h, and Tmax 1.04 h. There was a positiverelationship between the serum concentration and dosage (r = 0. 6096, P

Objective To investigate the regulation effect of interleukin-1? (IL-1?) on the expression of VEGF in A549 cells. Methods A549 cells were incubated with IL-1? in the presence or absence of Celecoxib. After incubation, cells were harvested to detect VEGF mRNA by reverse transcription-polymerase chain reaction (RT-PCR), and the supernatant was collected to determine the concentration of VEGF protein by enzyme-linked immunosorbent assay (ELISA). Results After treatment with IL-1?, the expression of VEGF mRNA and protein in A549 cells were significantly higher than that in the control group(P

Objective To establish diagnostic standards of colorectal tubular adenocarcinoma with confocal laser endomicroscopy(CLE), and to evaluate its diagnostic value in vivo.Methods The confocal images of 12 cases, which were pathologically confirmed colorectal tubular adenocarcinoma(4 well differentiated, 4 moderately differentiated and 4 poorly differentiated), were collected and analyzed to establish diagnostic standards of the disease with CLE.Then 49 lesions were prospectively evaluated based on CLE standards,which were compared to histopathology results.Results The sensitivity, specificity, accuracy, positive predictive value(PV +)and negative predictive value(PV -)of CLE in diagnosing tubular adenocarcinoma were 94.7%, 90.9%, 93.9%, 100% and 76.9%, respectively.The corresponding data of well differentiated adenocarcinoma were 100%, 83.3%, 88.9%, 85.7% and 87.0%, those of moderately differentiated adenocarcinoma were 86.7%, 90.5%, 86.1%, 86.7% and 90.5%, and those of poorly differentiated adenocarcinoma were 77.8%, 92.6%, 88.9%, 100% and 86.2%.Conclusion CLE is able to diagnose and grade colorectal tubular adenocarcinoma.

The pharmacokinetics and absolute bioavailability of 1-hexyl-carbamoyl-5-fluorouracil ( HCFU ) (10 mg/kg ) after oral and intravenous administration were studied in 5 dogs with cross-over design. The concentration of HCFU in serum was determined by reversed-phase high performanee liquid chromatography. After intravenous administration, the curve of serum HCFU concentration vs time was fit to a two-compartment opened model and the phar-macokinetic parameters were. T1/2?=1 .67 min, T1/2? = 34.55 min, Vc= 0.2525L/kg,C1 = 0.3205 L/kg?h~-1 & AUCiv =1.9375 mmol/min?L~-1. When HCFU tablets were tiken orally, the curve of concentration vs time was fit to an one-compartment opened model and its pharmacokinetie parameters were: T1/2ke=12.13 min, T1/2ke=38.51 min, Tmax=23.46 min,Cmax=8.140?10~-3mmol/L & AUCpo=1.5856 mmol/min?L~-1 . The absolute bioavailability calculated from AUCpo and AUCiv was 0.8214.

OBJECTIVE To discuss the efficiency method of improving consciousness and action for occupational infection protection among grass root medical staff.METHODS To conduct multiform health education,found restrict system,inspect and supervise,optimize protection flow,consummate protection establishment,and strengthen important link management in key departments in order to realize the system intervention among grass root medical staff.RESULTS Due to the system intervenion,the understanding rate of occupational infection protection knowledge improved from 48% to 96%,the average rate of occupational infection protection improved from 56.6% to 97.7% with significant differences(P

Objective To analyze the association of gastrointestinal symptoms and sleep disturbance after Wen-Chuan earthquake. *Methods Using random sampling method, compared with Beijing publics at the same time, within two weeks, questionnaire was performed in the disaster area population.Gastrointestinal symptoms were diagnosed according to the Rome Ⅲ standard, and were analyzed in relation to sleep investigation. Results Among 956 disaster area individuals, 459 (48.0%) have gastrointestinal symptoms. Among 1021 Beijing publics, the corresponding number was 78(7. 6% ) ,which was significantly lower. The main gastrointestinal symptoms included abdominal pain ( 14. 0% ), distension ( 12. 1% ),constipation ( 10. 3 % ), heartburn (8. 6% )and dysporia (8. 3% ). Compared with Beijing publics (24. 4% ),the disaster area publics ( 83.7% ) with gastrointestinal symptoms had significant differences in sleep disturbance (P ＜0. 05 ). Early awakening with acratia had significant differences in disaster area publics (P ＜ 0. 05). Conclusion There was relatively high incidence of gastrointestinal symptom after Wen-Chuan earthquake. The incidence of gastrointestinal symptom was related to sleep disturbance, and gastrointestinal symptoms were related to early awakening with acratia.