ObjectiveTo observe the level of transforming growth factor-β1 ( TGF-31 ) in lung tissue of mice with acute lung injury induced by bleomycin. MethodsSixty Kunming male mice were randomly (random number) divided into sham operation group, model group, curcumin high dose group,medium dose group and low dose group (n =12 in each group). The models of acute lung injury were made by intratracheal instillation of bleomycin for once in the mice of model group and curcumin treated groups,and equal volume of saline was used in mice of sham operation group instead of bleomycin. Curcumin was given in doses of 200 mg· kg-1 · d-1 , 100 mg· kg-1 · d-1and 50 mg · kg-1 · d-1 to the mice of high dose group, medium dose group and low dose group, respectively 24 hours after modeling until the day before sacrifice, and the mice of sham operation group and model group were fed with equal volume of saline instead. Six mice of each group were sacrificed on the 3rd and 7th day separately for detecting lung wet to dry ratio (W/D), pathological changes of lung tissue stained with HE, and level of the transforming growth factor-β1 in the lung tissues stained with immunohistochemistry in mice of each group. Data were analyzed to express as mean ± standard deviation. -PSS11.5 statistical package was used for analysis. The comparison of the mean diversity carried out by using single factor analysis of variance. Results Morphological changes in lung tissue observed under light microscope showed that obvious morphological abnormalities,alveolar edema fluid and inflammatory cells were not found in mice of sham operation group, and lung capillaries dilated, widened alveolar septum, edema fluid and inflammatory cells infiltration in the alveolar in lung tissue were seen in mice of model group, and different degrees of pathological changes were found in mice of three curcumin treated groups, but those changes were less severe than those in mice of model group. Lung wet to dry ratio (W/D) was significantly higher in mice of model group than that in mice of sham group ( P ＜ 0. 01 ), but that in mice of three curcumin treated groups was significantly lower than that in mice of model group ( P ＜ 0. 01 ). Immunohistochemistry showed low level of TGF-β1 in lung tissue of mice in sham operation group, and the level of TGF-β1 in lung tissue of mice in model group was significantly higher than that in sham operation group ( P ＜ 0. 01 ). The level of TGF-β1 in lung tissue of mice in three curcumin treated groups was significantly lower than that in mice of model group ( P ＜ 0. 01 ),but that was still higher than that in sham group ( P ＜ 0. 01 ). ConclusionsCurcumin can inhibit the TGF-β1 in lung tissue and play a protective effect on acute lung injury induced by bleomycin, reducing the degree of lung injury. The protective mechanism may be associated with the inhibition of TGF-β1 in lung tissue.

Objective To evaluate the correlation of the diagnostic chance of maternal pulmonary tuberculosis and the prognosis of their children. Methods One hundred and fifty-six patients with maternal pulmonary tuberculosis were analyzed,which were assigned to two groups based on the diagnostic chance: pregnant group ( 60 cases) and postpartum group ( 96 cases). Living quality of their children was counted, and viewed in parallel with children (98 cases,control group) of healthy mother at the same time. Results The morbidity in postpartum group was 69.79% (67/96),significantly higher than that in pregnant group [l3.33%(8/60)](P<0.05) and control group [4.08%(4/98)](P<0.05). The mortality in postpartum group was 8.33% (8/96), significantly higher than that in pregnant group (0)(P< 0.05) and control group (0)(P< 0.05).The morbidity and mortality in pregnant group were not significant difference compared with control group(P > 0.05 ). Conclusion Diagnosis and treatment before the parturition of maternal pulmonary tuberculosis can reduce the morbidity and mortality of the children and improve their life quality.

Objective:To investigate the numbers and distributions of dendritic cells and the expressive intensity of CD1c,S 100 in different human ovarian carcinoma tissues,and to discuss the relationship between them and the mechanism of development.The study can provide the experimental date of biological therapy of ovarian carcinoma.Methods:The samples of 31 patients with ovarian carcinoma were analyzed by ABC immunocytochemistry and computer imaging techniques.Results:The results showed that the number of positive dendritic cells in ovarian carcinoma reduced greatly with significant and the expressive intensity of CD1c,S 100 was weaker in ovarian carcinoma than in normal ovarian tissues.Conclusion:The total expression of dendritic cells phenotypic antigens was reduced in ovarian epithelial carcinoma,which may play an important role in initiating immunity against ovarian carcinoma.

Neuron chip is a multiprocessor with three pipeline CPU; its communication protocol and control processor are integrated in effect to carry out the function of communication, control, attemper, I/O, etc. A novel biologic electronic signal measurement network system is composed of intelligent measurement nodes with neuron chip at the core. In this study, the electronic signals such as ECG, EEG, EMG and BOS can be synthetically measured by those intelligent nodes, and some valuable diagnostic messages are found. Wavelet transform is employed in this system to analyze various biologic electronic signals due to its strong time-frequency ability of decomposing signal local character. Better effect is gained. This paper introduces the hardware structure of network and intelligent measurement node, the measurement theory and the signal figure of data acquisition and processing.
Automatic Data Processing ; instrumentation ; Electrocardiography ; instrumentation ; Electroencephalography ; instrumentation ; Electromyography ; instrumentation ; Equipment Design ; Humans ; Monitoring, Physiologic ; instrumentation ; Neurons ; Signal Processing, Computer-Assisted ; instrumentation

Objective:To establish and identify a SD rat model with reconstruction of bladder sensory and motor innervation , so as to lay the foundation for further study of micturition center remodeling and its mechanisms .Methods:A total of 45 female SD rats were randomly divided into control group(n=10) ,rhizotomy group(n=15) and nerve root anastomosis group(n=20) . All the ventral and dorsal roots of spinal nerve below L4 level of rats in rhizotomy group were cut off .In nerve root anastomosis group ,the bilateral ventral and dorsal roots of L4 nerve ,were anastomosed with those of S1 nerve ,after the spinal nerve roots had been cut off .Rats in control group were not treated with surgery . At Six months after surgery ,rats in each group underwent urodynamic test ,nerve root stimulation ,toluidine blue staining at nerve anastomosis site ,pelvic ganglia fluorescence gold tracer staining and bladder wet weight measurements .Results:Bladder maximum capacity ,residual urine volume ,bladder compliance and bladder wet weight in nerve root anastomosis group was less than those in rhizotomy group ,however ,larger than those in control group(P<0 .05) .There was no statistically significant difference in maximum voiding pressure between nerve root anastomosis group and control group(P> 0 .05) ,however ,maximum voiding pressure in nerve root anastomosis group was larger than that in rhizotomy group(P<0 .05) .Intravesical pressure increased after nerve root stimulation in nerve root anastomosis group ,but it was still lower than that in control group(P<0 .05) .Nerve passing rate was (53 .4 ± 6 .7)% in nerve root anastomosis group ,under toluidine blue staining at nerve anastomosis site .After injection of fluorescent gold in pelvic ganglia ,fluorescence gold staining was visible in the L4 spinal cord gray matter in nerve root anastomosis group , however ,not visible in rhizotomy group and control group .Conclusions:SD rat model with reconstruction of bladder sensory and motor innervation is successfully established .It lays the foundation for further study of micturition center remodeling and its mechanism .

Objective:To test the feasibility, efficacy and safety of percutaneous patent foramen ovale(PFO) closure utilizing the Pansy biodegradable occluder(PBO) at 1-, 3-, 6-, 12-, 24-, and 36-month follow-up.Methods:In this single-center prospective clinical study, we enrolled 15 patients with PFO eligible for closure, all treated with the PBO, with device sizes ranging 24-34 mm. All clinical data were recorded in a 36-month follow-up period. Patients were summoned to the hospital in the 1, 3, 6, 12, 24, and 36 months after closure for transthoracic echocardiography(TTE), or transesophageal echocardiography(TEE), contrast transcranial doppler(cTCD) or contrast transthoracic echocardiography(cTTE), and a routine fasting blood sample.Results:The mean age was 27-68(44.0±16.4) years old. Indications for closure were cryptogenic stroke in 6 patients and migraine in 9 patients. Procedures were technically successful in 100%(15/15), in which course TTE showed that the position and shape of occluders were satisfactory. Small residual shunt was found by TTE in 2 patients with ASA in 1 month and 6 months after closure, respectively. 1 patient with cryptogenic stroke had another recurrent stroke 8 months after closure. At 12-month follow-up, 11 cases were closure. At 36-month follow-up, 13 cases were closure. 12 patients without atrial septal aneurysm(ASA) were closure. 1 patients with ASA was complete closure. No device-related complications occurred during the follow-up.Conclusion:PBO has good biocompatibility and suitable degradation time. A high technical success rate and closure rate can be achieved in those patients without ASA. Percutaneous closure of PFO using PBO is feasible, effective, and safe.