Adult ; Career Mobility ; Factor Analysis, Statistical ; Female ; Humans ; Intention ; Job Satisfaction ; Male ; Personnel Turnover ; Surveys and Questionnaires

ObjectiveTo investigate the expression of heme oxygenase-1 (HO-1) in lung tissue of mice with acute paraquat poisoning, and discuss its pathological mechanism.Methods Fifty-eight healthy male mice were randomly divided into control group (n = 8) and poisoned group (n = 50). The mice in poisoned group were lavaged with 20% paraquat (50 mg/kg), and those in control group with equal amount of normal saline. The mice were sacrificed on the day of experiment in control group, and those in poisoned group at 6 hours and 1, 3, 7, 14 days after poisoning. The lung tissue was harvested to observe the changes in pathology of lung with hematoxylin and eosin (HE) staining. The positive expression of HO-1 was determined with immunohistochemistry, and the protein expression of HO-1 was determined with Western Blot. The contents of superoxide dismutase (SOD) and malonaldehyde (MDA) were determined.Results The mice showed shortness of breath and signs of exhaustion 1 hour after poisoning, getting worse on 3-5 days, but returned to normal 14 days after poisoning. Under the light microscope, it showed that the control group had no significant pathological changes in lung tissue. One day after the ingestion, pulmonary alveolar structure disorder, obvious hemorrhage, edema and infiltration of inflammatory cells were found. At 3 days, the pathological changes in the lung tissue were more pronounced. They were less pronounced on 7 days, and inflammatory changes disappeared on 14th day, but alveolar structure disorder remained. Immunohistochemical test showed that HO-1 was seldom expressed in the lung tissue, and a little amount was expressed in the mucosal epithelial cells of the airway in control group. It was shown that inflammatory cell and endothelial were mainly distributed in the mucosal epithelial cells of airway 1 day after poisoning followed by a gradually decrease tendence, and came to normal level of control group 7 days after poisoning. It was shown by Western Blot that HO-1 (gray value) in lung tissue increased 6 hours after poisoning (2.438±0.467 vs. 0.475±0.167,P< 0.01), peaked at 1 day (9.200±0.940 vs. 0.475±0.167,P< 0.01), continued to increase till 7 days after poisoning, and it lowered to normal level thereafter (0.825±0.260 vs. 0.475±0.167,P> 0.05). The SOD activity (μU/L) in lung tissue was lowered 6 hours after poisoning, and it was significantly lower than that of control group (649.681±13.951 vs. 1 167.051±15.744,P< 0.01), and it continued to decrease up to 14 days after poisoning (859.733±121.079 vs. 1 167.051±14.744,P< 0.01). MDA content (μmol/L) in the lung tissue homogenate was elevated 6 hours after poisoning with significant difference compared with that of the control group (4.542±0.266 vs. 3.705±0.176,P< 0.01). It peaked on day 1 (5.956±0.281 vs. 3.705±0.176,P< 0.01), then it declined and reached normal level 3 days after poisoning (4.134±0.168 vs. 3.705±0.176,P> 0.05).Conclusion HO-1 expression was increased significantly in lung tissue of mice with acute paraquat poisoning, which may be considered as an important protection mechanism against paraquat poisoning.

Objective To investigate the correlation between ABCD2 scores and vertebrobasilar artery stenosis in patients with posterior circulation transient ischemic attack (TIA).Methods The patients with posterior circulation TIA who performed cerebral angiography were enrolled in the study,and their ABCD2 scores and imaging data were analyzed.Results A total of 108 patients with posterior circulation TIA were enrolled.There were significant differences in the main trunk stenosis degree of vertebrobasilar artery with different ABCD2 scores in patients with posterior circulation TIA (P =0.005).The overall degree of stenosis increased with the increase of ABCD2 score (P =0.000).After adjustment for other vascular risk factors,ABCD2 score had significant predictive ability for whether had posterior circulation stenosis (odds ratio [OR]1.771,95％ confidence interval [CI] 1.234-2.542; P =0.002) and moderate to severe stenosis (OR 2.083,95％ CI 1.336-3.176; P =0.001).Its receiver operating characteristic area under the curve was 0.693(95％ CI 0.586-0.800) and 0.755 (95％ CI 0.661-0.849) respectively.When the ABCD2 score was ≥3,the sensitivity and specificity of predicting posterior circulation stenosis were 62.6％ (95％ CI 53.4％-71.7％) and 70.6％ (95％ CI62.0％-79.1％) respectively,and the sensitivity and specificity of predicting posterior circulation stenosis ＞ 50％ were 78.7％ (95％ CI 70.9％-86.4％) and 67.5％ (95％ CI58.7％-76.3％) respectively.Conclusions In patients with posterior circulation TIA,the stenosis degree of vertebrobasilar arterial trunk increases with the increase of ABCD2 score.In a certain extent,ABCD2 score may predict whether the main trunk of the posterior circulation has stenosis and whether has moderate to severe stenosis.

Xiaochaihu Decoction comes from Shang Han Lun, which is a main formula for Shaoyang diseases. According to the principle of prescriptions corresponding to syndromes, the clinical application of modified Xiaochaihu Decoction for the treatment of swelling, pain, nausea, vomiting, bloating, and constipation after artificial total knee arthroplasty can achieve good efficacy.

Response surface analysis (uniform precision of central composite design, SAS 9.1.3 software) was applied to optimize the four major factors (ratio of soybean meal to water, enzyme quantity, fermentation time and inoculation quantity) for soybean meal solid fermentation. According to the change of the hydrolyzation degree of soybean protein, the equation of polynomial regression was established between those factors and the response. The result showed that the optimum condition included as follows: ratio of soybean meal to water 1∶1.00,enzyme quantity 2.55%, fermentation time 65h and inoculation quantity 1.00%. Under the optimum level, the degree of hydrolyzation reached 13.3%, which increased 56% over pre-optimization.

Objective To investigate the significance of the Children's Rehabilitation Management System (ICR 2.0) for occupational therapy (OT) for cerebral palsy (CP). Methods 60 children with CP were divided into group A (n=30) and group B (n=30). The group A accepted OT program assisted with ICR 2.0, and the group B accepted OT program drawn by therapists experientially. They were assessed with Enjoji infant development scale and Fine Motor Function Measure (FMFM) before and 3 months after treatment. Results There was no significant difference in development months and the fine motor between 2 groups before treatment (P>0.05). Both the development and fine motor improved after treatment (P<0.001), and improved more in the group A than in the group B (P<0.05). Conclusion ICR 2.0 assisted OT program can further improve the recovery of children with CP.

OBJECTIVE:To establish a method for the determination of related substances in Lovastatin tablet. METHODS:HPLC was performed on the column of Waters XTerra? MS C18 with mobile phase A of 0.01%Phosphoric acid solution and B of acetonitrile(gradient elution)at a flow rate 1.0 ml/min,column temperature was 40 ℃,the detection wavelength was 238 nm,and the injection volume was 10 μl. RESULTS:The impurity components were well separated in principal components;the linear range of lovastatin was 17.5-700 μg/ml(r=0.9999);RSDs of precision,stability and reproducibility tests were lower than 1%;recov-ery was 99.30%-100.67%(RSD=0.4%,n=9). CONCLUSIONS:The method is reproducible with good durability and high preci-sion,and can be used for the quality control of Lovastatin tablet.

Objective To evaluate the safety of coronary intervention using iodixanol in patients with diabetic renal insufficiency.Methods Clinical data of 97 patients with diabetic renal insufficiency undergoing coronary intervention during June 2004 to June 2006 were retrospectively analyzed,50 of them with iodixanol,an iso-osmolar contrast medium (iodixanol group),and 47 with iopromide,a hypotanic contrast medium (iopromide group).Judkin's coronary angiography showed 167 diseased vessels in the patients,65 in anterior descending branches,44 in circumflex branches,and 58 in right coronary arteries. Levels of serum creatinine and blood urea nitrogen were determined before percutaneous coronary intervention (PCI),on the day of the procedure,the 3rd and 7th days after PCI,respectively,as well as radiocontrast media-induced nephropathy (CIN) was observed.Results Totally,192 drug-eluting stents were successfully implanted in 167 diseased vessels,and all patients' angina pectoris symptom disappeared soon after the procedure,with a full success.No acute or subacute stent thrombosis and major adverse cardiac events (MACE) occurred.Two patients (4%) in iodixanol group and 10 (21%) in iopromide group got CIN,with a statistical significance (P

Objective To evaluate the role of mesenchymal stem cells (MSCs) derived from mouse bone and embryo dorsal aorta(DA) area in the treatment of irradiation induced lung injury of mouse model. Methods The mice were divided into four groups as normal control group, irradiation group,bone MSCs treatment group and DA MSCs treatment group. Immunohistochemical Analysis of lung tissue was observed after 9 months of treatment. Results Fibrosis and alveolar infiltration were scored in each group. The score for fibrosis and alveolar is 0. 17 in normal control group, 2 in irradiation group, 1 in bone MSCs treat group and 1.38 in DA MSCs treat group. Conclusion The extent of irradiation Induced Lung Injury could be reduced thorough the treatment of MSCs derived from mouse bone and embryos dorsal aorta ( DA ) area.

Objective To observe the clinical efficacy of Weixuening granule combined with prednisone for treatment of patients with primary immune thrombocytopenia (ITP) and its impact on platelet-associated antibodies(PAIgG, PAIgM, PAIgA). Methods Sixty patients with ITP were randomly divided into a observation group (30 cases, Weixuening granule combined with prednisone) and a control group (30 cases, prednisone therapy alone), 3 months constituting a therapeutic course. The clinical effects, platelet count (PLT) and PAIgG, PAIgM, PAIgA of two groups were observed after two courses of treatment. The time of withdrawing prednisone, relapse rate in 1 year and adverse reactions were also monitored. Results The total effective rate of the observation group was higher than that of the control group [90.00%(27/30) vs. 73.33%(22/30), P<0.05]. The time of withdrawing prednisone was significantly shorter in the observation group than that in the control group(days:39.8±7.8 vs. 55.3±6.5, P<0.05). The relapse rate in 1 year in the observation group was obviously lower than that of the control group [23.3%(7/30) vs. 50.0%(15/30), P < 0.05]. The PLT levels were markedly increased after treatment in the two groups, the levels of platelet-associated antibodies PAIgM and PAIgA after treatment in the two groups were lower than those before treatment, and the degree of improvement in observation group was superior to that of the control group [PLT (×109/L):113.25±15.47 vs. 84.79±20.37, PAIgM:(28.91±10.42)%vs. (30.75±9.37)%, PAIgA:(19.32±11.54)%vs. (21.15±15.16)%]. The level of PAIgG in the observation group was decreased obviously after treatment, while in the control group, it did not have significant change before and after treatment, and in the comparison of the level of PAIgG after treatment between the two groups, there was statistical significant difference [(15.29±9.02)%vs (32.41±9.34)%, P<0.05]. There were adverse reactions in the two groups, including centrality obesity, polytrichosis, acne, and hyperglycemia;the incidence of the above side effects in observation group was lower than that of the control group [73.3%(22/30) vs. 86.7%(26/30)], but the difference was not statistically significant (P>0.05). Conclusions The combined use of Weixuening granule and prednisone for treatment of patients with primary ITP is more effective than administration of prednisone alone;the adverse reactions are less in combined therapy group. Possibly, the better therapeutic effect of combined therapy is related to the decrease of platelet-associated antibodies and increase of the platelet generation.