Objective To assess the status of self-esteem of college students of higher vocational medical school and to provide targeted guidance.Methods Totally 1014 college students of higher vocational medical school were assessed using self-esteem scale and the results were analyzed by SPSS 13.0.Results The self-esteem levels among different student levels were different.The self-esteem level was lower in students of technical secondary school than in students of vocational college and junior college.The self-esteem levels were different among factors of different grades,family location,duty and post,satisfaction degree for school,individual health and family education (P ＜ 0.05 ) ;while they are not significantly different among factors of gender,major,being singleton or not and family types ( P ＞ 0.05 ).Conclusions School should further strengthen the mental health education and use kinds of methods to improve the self-esteem of college students.

Fundamental specialized courses are important due to their connection between fundamental knowledge and major knowledge,which are regarded as the difficult courses for undergraduates to learn.The useful approaches and experience of bilingual teaching in microbiology,one of the fundamental specialized courses for the students majoring in Bioengineering,are presented here.The key aspects such as choosing textbooks,teaching manners and teaching contents are also discussed.This paper also proposes how to improve the quality of bilingual teaching during the fundamental specialized courses.

As to a nitrite-oxidizing bacterium screened in our laborator y, the effect of pH, nitrogen sources, carbon sources and sodium chloride on its g rowth was studied in order to obtain high cell density. It showed that the cult ure conditions of nitrite- oxidizing bacterium were 4500mg/L sodium nitrite, 1 .5g/L sodium carbonate, 0~0.5% sodium chloride and 0~0.1% glucose at 28℃~30 ℃, 110 r/min and pH 8.0~8.5. After cultivation for 9 days, the bacteria conc entration reached 4.6?109 MPN/mL and all NO-_2-N in the medium w as converted to NO-_3-N. But the transformation of nitrogen sources was inhibited while the sodium chloride concentration exceeded 0.5% or glucose con centration exceeded 0.1%. According to the test of NO-_2-N conversion with nitrite-oxidizing bacteria in a freshwater aquaculture pond, NO-_2 -N began to decrease on the third day of the moculation of this bacterium and t he concentration dropped from 1.47mol/L to 0.49mol/L after 18 days at 25℃ and pH 8.6.

OBJECTIVE To investigate the expression and their clinical significance of uPA (urokinase type plasminogen activator) and integrin?4 in papillary thyroid cancer. METHODS The levels of uPA and integrin?4 were determined by Immunohistochemistry technique (S-P method) in 36 specimens from patients with papillary thyroid cancer, 30 specimens from benign thyroid tumor and normal thyroid tissues adjacent to benign thyroid tumor. RESULTS The levels of uPA and integrin?4 in benign thyroid tumor were significantly higher than that in normal tissue adjacent to benign thyroid tumor (P

In order to estimate the relationship between iron and the Alzheimer's disease, the behavioral and pathological changes were observed by Morris water maze and immunohistochemical staining respectively after injecting FeC13 into brain ventricle of rats. The apoptosis was tested by flow cytometry and the electron microscopy was used to observe ultrastructural changes. There were significant differences in escape latency of time and distance between normal animals and iron treated rats. Percentage and fluorescence intension (FI) of AnnexinV FITC loaded cells undergoing apoptosis were higher in iron treated rats compared with normal animals. Fawn-coloured products of β amyloid protein were interspersedly distributed in extensive areas of cerebral cortex and hippocampus. Under electron microscope, vacuolate degeneration of neuronal processes with mitochondria degeneration and accumulation of microtubule near vacuolar nucleus were observed in iron treated rats. These results suggest that a local higher concentration of iron in brain may induce Alzheimer-like impairment of intelligence and pathological changes.

Objective To observe the effects of bolus volume on pharyngeal and upper esophageal sphincter pressures and durations in healthy volunteers by using high-resolution manometry (HRM).Methods Twentyfour health subjects were recruited and asked to swallow three volumes of bolus (3 ml,5 ml and 10 ml) in the neutral head position.Pressure and duration measurements were acquired by utilizing a high-resolution solid-state manometer,with an emphasis on the hypopharynx and upper esophageal sphincter (UES).Variables including UES residual pressure,UES relaxation duration,maximum hypopharygeal pressure and hypopharyngeal pressure duration were analyzed across bolus volumes and consistencies by using three-way repeated measures analysis of variance (ANOVA) to investigate influence of bolus volume.Results UES residual pressure [-1.71 mmHg(3 ml thick liquid)vs.-4.68 mmHg(10 ml thick liquid)],UES relaxation duration[590.45 ms(3 ml thick liquid) vs.702.49 ms (10 ml thick liquid)],maximum hypopharygeal pressure [169.91 mmHg (3 ml thick liquid) vs.204.42 mmHg (10 ml thick liquid)] and hypopharyngeal pressure duration(P ＜0.05) varied significantly across bolus volumes when swallowing water or thick liquid.The UES relaxation duration,UES residual pressure and maximum hypopharyngeal pressure had a direct positive relationship with bolus volume.There was significant differences with regard to UES relaxation duration [685.75 ms(3 ml paste)vs.772.27 ms (10 ml paste)] but not to UES residual pressure (P ＞ 0.05) and maximum hypopharyngeal pressure (P ＞ 0.05) across bolus volume when swallowing paste.Conclusions Difference in hypopharyngeal pressure and duration,UES residual pressure and duration were detected across varying bolus volumes.Consideration of these variables is paramount in understanding normal and pathological swallowing.

Objective To investigate the correlation between Bispectral index (BIS) value and the prognosis of patients with coma in ICU.Methods A total of 208 patients with coma in ICU were divided into 4 groups according to the BIS value.In group I,BIS value was 0 to 20; groupⅡ,BIS value 21 to 40; group Ⅲ,BIS value 41 to 60; and group Ⅳ,BIS value greater than 60.Comparison of the difference in BIS value with the differences in prognosis of patients with coma was carried out between four groups,and the prognosis of patients with coma was stratified into consciousness,coma,vegetative state,and brain death.Subsequently,the best cutoff score of BIS value calculated for determining the correlation between BIS and mental state was proposed.Results There are no significant differences in the age and APACHE Ⅱ scores between four groups (P ＞ 0.05).It was inverse correlation between BIS value and mental state (r =-0.749,P =0.00).According to the ROC curve,as BIS value was greater than 42.5,there were higher sensitivity and specificity in Conscious-Coma patients.Conclusions BIS value is correlated with the prognosis of patients with coma in ICU,and BIS value can be a useful marker for estimating the prognosis of comatose patients.

Objective To study the effect of modified sensorimotor training (SMT) method on standing ba- lance of the stroke patients during their recovery stage. Methods Sixty stroke patients at recovery stage were ran- domly divided into an intervention group and a control group. The intervention group was trained by modified SMT method which combined Thera-band with partial body weight support (PBWS) system, while the control group was trained only with their standing balance in the parallel bars based on the neurodevelopment therapy (NDT) method. Both groups were given the same medications as well as physical therapy, acupuncture and OT. The patients in the two groups practiced standing balance in front of a mirror daily, 40 minutes every day and 6 days every week for 4 weeks. The balance abilities of patients were evaluated by Berg balance scale (BBS) , and their lower extremity func- tions were assessed by simplification Fugl-Meyer assessment (FMA). Results After training, both groups showed significant improvement in BBS and FMA ( P

Objective To evaluate the effect of the modified balloon dilatation intervention on the pharyngeal constriction function of the brainstem stroke survivors with dysphagia using videofluoroscopy-based digital analysis.Methods Thirty brainstem stroke survivors with pharyngeal dysphagia were recruited and randomly divided into a treatment group and a control group,with 15 in each.The treatment group was treated with the modified balloon dilatation in addition to the routine treatment of 30min,respectively,once a daily,3 days a week,whiled a control group was treated with routine treatment of 30min twice a day,3 days a week.Before and after the treatment,the rate and duration of pharyngeal constriction were measured in both groups.Results After the treatment,the rate of pharyngeal constriction in the treatment group was (0.20 ± 0.030),(0.14 ± 0.05) and (0.15 ± 0.04) when swallowing thin liquid,thick liquid and pasty food,significantly better than before the treatment.The duration of the pharyngeal constriction was (990.34 ±96.14),(1010.47 ± 133.64) and (1180.10 ± 121.27) ms,respectively,also significantly better than before the treatment.In the control group,significant differences were also observed in the rate and duration of pharyngeal constriction before and after the treatment.Conclusions Digital analysis based on videofluoroscopy can be used to quantify swallowing function effectively,and the rate and duration of pharyngeal constriction can be used to evaluate the pharyngeal function before and after treatment.

Objective To investigate clinical signifieances of serum levels of vascular endothelial growth factor (VEGF) in patients with diffuse large B-cell lymphoma (DLBCL) and to analyze the relationships with international prognostic index (IPI). Methods Serum levels of VEGF were measured by ELISA in 26 cases with newly diagnosed DLBCL and 9 cases with relapsed DLBCL. The clinical data of 26 patients were collected. According to the IPI, 26 patients were divided into two group: low risk group (IPI＜2) and moderate to high risk group (IPI≥2). Results Compared with the normal controls, newly diagnosed and relapsed DLBCL had significantly higher VEGF serum levels (P ＜0.01). In the patients responding to CHOP or RCHOP regimen a significantly decrease in VEGF serum levels occurred, while in the patients who did not achieve complete remission(CR) there was no significant decrease. Furthermore, pretreatment serum levels of VEGF were significantly lower in CR group than in partial remission (PR) and no remission (NR) group. In addition, serum levels of VEGF were significantly elevated in the high risk group than those at the low risk group(P＜0.01). Conclusion The serum levels of angiogenic factor VEGF are related to the development and progression of DLBCL. The VEGF combined with IPI can be used for evaluating the prognosis of DLBCL.