Objective To study the clinical significance of urinary mtcroprotems examination on early diagnosis of kidney damage of children with obesity. Method Urinary microproteins were tested in 40 obese children by enzyme - linked immunosorbent assay and 50 healthy children as controls. Results Urinary microprotem examination were abnormal in 8 obese children. Albumin in 5 cases increased, and transferrin(TRF) with retinol-binding protein in 1 case increased meanwhile. TRF in 3 cases increased. One case was abnormal by kidney biopsy.Conclusion Urinary microprotem examination was the sensitive index in early diagnosis of obesity-related glomerulopathy in children.

Objective To investigate the effect of sedation on respiratory mechanic dynamics, intrapulmonary shunt fraction,oxygen metabolism in patients with mechanical ventilation.Method Sixty patients with mechanical ventilation were divided randomly into control group and sedation group.Propofal was administered to patients,whose ramsay scores were kept atⅢorⅣlevels,in sedation group while the equal amount of normal saline was given in control group.Mixed venous blood and arterial blood samples were taken for blood gas analysis in both groups before and at 2 hours after administration.Heart rate,blood pressure,breathing rate and airway resistance all were recorded at the same time.Results There were no significant differences in oxygenation index,blood pressure,blood lactic acid,total lung static compliance and intrapulmonary shunt fraction between two groups before and after administration.Heart rate,respiratory rate,oxygen uptake and airway resistance of patients in sedation group were lower than those in control group,and partial pressure of oxygen in mixed venous blood of patients in sedation group were higher than those in control group.These differences were statistically significant.Conclusions Sedation can decrease oxygen uptake and airway resistance of patients with mechanical ventilation.However,no alteration in the oxygenation index,total lung static compliance and intrapulmonic shunt ratio can be observed.

Objective To investigate the hemodynamics and structural effect of rat endothelial progenitor cells (EPC) transplant on pulmonary artery hypertension (PAH) induced by monocrotaline(MCT) in rats.Methods EPCs were identified and marked.Twenty-one days after injection of EPCs,the pulmonary hemodynamic parame- ters,average pulmonary artery pressure (mPAP),right heart index were determined.The vascular endothelial cells and pulmonary vascular structural changes were verified by fluoresccuse microscope.Results Compared with the model,EPCs treatment(n=10) decreased mPAP significantly (mPAP,EPCs:25.9?0.7 mmHg vs model group:29.3?2.2 mmHg,P

0.05).Conclusion pcDNA3-gB with different doses have not significant effect on the indexes of hematology,hematological biochemistry and pathology in immunized mice.It is initially proved that pcDNA3-gB is safe.

Objective: To explore the relationship between lifestyle and ankle-brachial blood pressure. Methods: Ankle-brachial blood pressures of 2121 adults from all over China were measured with self-developed KD-991 portable ankle-brachial blood pressure simultaneous detecting instrument. They were divided into smoking group and no smoking group, heavy drinking group and moderate drinking group, exercise group and lack of exercise group and comparisons of abnormal ankle-brachial index (ABI, ≤0.9 or≥1.3) rate between paired two groups were performed. Results: Rate of abnormal ankle-brachial index (ABI, ≤0.9 or≥1.3) in smoking group (15.3%), heavy drinking group (13.6%) and lack of exercise group (10.5%) were significantly higher than those of no smoking group (7.9%), moderate drinking group (7.5%) and exercise group (7.4%) respectively, P<0.05 all. Conclusion: Unhealthy lifestyle is related to abnormal ankle-brachial blood pressure and it is very good to prevent occurrence of atherosclerosis , early discover and effectively control its development using ABI to guide people to change unhealthy lifestyles.

Objective To analyse the sonographie characteristics of thyroid nodules after injection and investigate the contrast enhanced ultrasonography. Methods Analysed the sonographic characteristics in 32 cases and observed the dynamic enhancement pattern of nodules by the time-intensity curve(TIC). The evaluated parameters were arrival time (AT), time to peak(TTP), peak intensity(PI). Results Thyroid cancer (12 cases) showed early wash in an early wash out in comparison with the adjacent thyroid parenchyma, and the enhancement intensity [AT(7.49 ± 4.45), TIP( 17.41 ± 2.84), PI( 18.56 ± 5.24) s] were lower than nodular goitre (20 cases) [ AT ( 13.22 ± 3.30), TIP (20.92 ± 2.59), PI ( 19.15 ± 5.47 ) s ] (P < 0.05 ). Conclusion The contrast enhanced ultrasonography may provide a useful method for the diagnosis of thyroid cancer.

Based on the ambition of students,the stomatological laboratory teaching was set as an independent course and experiment teaching was conducted in stages and modular method.The stomatological laboratory teaching course was separated to four modules: basic oral medicine laboratory teaching module,clinical oral medicine laboratory teaching module,creating experimental teaching training module and professional training module.The experimental teaching is to explore new thinking and new mode for enhancement of students' clinic skill and creating ability.

Air Pollutants ; toxicity ; Air Pollution, Indoor ; adverse effects ; Animals ; DNA Damage ; drug effects ; Female ; Interior Design and Furnishings ; Male ; Mice ; Mutagenicity Tests

The effects of betulinic acid (BA), a pentacyclic lupane-type triterpene, on the cell viability, cell cycle and apoptosis in human leukemia K562 cells were investigated. The effects of BA on the growth of K562 cells were studied by MTT assay. Apoptosis was assayed through Annexin V/propidium iodide (PI) double-labeled cytometry. The effects of BA on the cell cycle of K562 cells were studied by a PI method. The expression of Bax and capase-3 was detected by using Western blot. The results showed that BA was cytotoxic to K562 cells with an IC(50) of 21.26 mug/mL at 24 h. After treating K562 cells with 10 mug/mL BA for 72 h, the number of cells was reduced by 58%. BA induced apoptosis of K562 cells in a time- and dose-dependent manner. The proportion of cells in G(0)/G(1) and G(2)/M phases was decreased and that in S phase was increased after K562 cells were treated with BA for 24 h. BA treatment also increased the expression of the pro-apoptotic proteins Bax and caspase-3. It suggested that BA could inhibit the proliferation of K562 cells through the induction of cell cycle arrest and apoptosis. The antitumor effects of BA were related with up-regulation of the expression of Bax and caspase-3 proteins. BA may qualify for the development of new therapies for leukemia.