Objective　To study the efficacy, safety and related characteristics of ethylcellulose microcapsules containing tubeimoside as a vascular embolization agent. Methods　The ethylcellulose microcapsules containing tubeimoside was prepared using tubeimoside from bolbostemma paniculatum of Chinese medicinal herb as the core, and ethylcellulose as the shell. Transcatheter renal arterial embolization was performed with the microcapsules in 30 New Zealand white rabbits. Results　The microcapsules were white, spherical, and smooth particles, with its size to range from 40-180 μm, and its drug content was 36%(W/W); It was divergened best in 40% meglucamine diatrizoate and suspended stably, easily injected through 3 F catheter without occlusion. All of the microcapsules ruptured in about 20 days when immersed in physiological saline at 37℃. The embolized kidneys were smaller than the normal kidneys in weight and volume after 30 days（tw=102.1, tv=38.0, P<0.001）. Serial slices of the kidneys showed that the microcapsules remained mainly at the interlobular artery and the arterial arch, which measured from 110 μm to 350 μm in diameter. The vessels maintained occlusive after 30 days without formation of collateral circulation. Conclusion　Ethylcellulose microcapsules containing tubeimoside were safe and effective with angioembolic function and slow-release. It was a potential peripheral artery embolization agent.

Objective To assess the vision-related quality of life(VRQL) in patients with age-related maculopathy (AMD) and the related factors in Shanghai. Methods The VRQL of 105 patiens with AMD and 105 without (the control group) in Shanghai was investigated via Chinese-version low vision quality of life questionnaire. Resutls The Cronbach ? coefficient of the questionnaire is 0.97 in the patients with AMD, whose scores of the various quality of life were significantly lower than those in the control group. The more the exudative defect happened, or the longer the disease course developed, the lower the sccores were. All the scores of the scales and the total questionnaire were significantly related to the better or worse monocular visual acuity. The better monocular visual acuity was the first independent risk factor affecting all aspects of VRQL in pateints with AMD. Conclusions Decreased visual acutiy may gradually impair the VRQL in patients with AMD. Chinese-version questionnaire of low vision quality of life can provide the general information of the VRQL in patients with AMD.

Objective To investigate the effect of Salvia miltiorrhiza injection on proliferation , apoptosis and expression of hydroxyproline in human embryonic lung fibroblast cells. Methods TGF-β1 was administered to induce the proliferation in human embryonic lung fibroblast cells; the effect of Salvia miltiorrhiza injection on the number of human embryonic lung fibroblast cells was detected by MTT method; ki67 expression by immunocytochemical method;cell apoptosis by flow cytometry and the expression of hydroxyproline by colorimetry method. Results TGF-β1(0, 2.5, 5, 10, 20, 40 μg/L)could up-regulate cell number of human embryonic lung fibroblast cells in a dose-dependent manner , while the OD value of human embryo lung fibroblasts cells declined pretreated with Salvia miltiorrhiza injection in a dose-dependent manner and Salvia miltiorrhiza injection could induce the apoptosis and down regulated hydroxyproline expression in human embryo lung fibroblasts cells. The results of flow cytometry indicated that cell apoptosis increased after treated with Salvia miltiorrhiza injection when compared with TGF-β1 group (P < 0.05). Meanwhile, Salvia miltiorrhiza injection could down regulate the expression of hydroxyproline (P < 0.01). Conclusions Salvia miltiorrhiza injection can target human embryonic lung fibroblast cells , play a potent role in the airway remodeling through the promotion of its apoptosis and down regulate the expression of hydroxyproline.

Objective To investigate the trend of omtibacterial resistance rate of Acinetobater baumannii in our hospital from Jan.2000 to Jun.2005,and for the guidance of rational use of antibacterials.Methods A.baumannii strain was isolated and tested by K-B method from clinical samples and antibiotic resistance was analyzed and studied retrospectively.Results There was an elevated tendency of the resistance rates to common antibacterial in A baumanii for past six years. The resistance rate to imipenem was the lowest (3.6%) and to amikacin, cefoperazone/sulbactam was 29.5%-77.4%.Conclusion The resistance rates to common the antibacterial in A.baumanii are high and the resistance pattern is wide. It is important to select antibiotics according to the antibiotics sensitivity in vitro.

This paper studies the characteristics of biomedical engineering education mode in USA as well as its history in China.The practice and research on education mode of biomedical engineering in our institute is introduced as a reference for biomedical engineering education.

Objective To observe the subfoveal choroidal thickness (SFCT) and choriocapillary blood flow area (CBFA) in the patients with idiopathic macular hole (IMH).Methods This is a prospective clinical study.Thirty-two patients with unilateral IMH (4 in stage 2,17 in stage 3,11 in stage 4) and 32 age-and sexmatched normal controls were enrolled in this study.All eyes were divided into three groups,including group A (32 affected eyes),group B (32 fellow eyes) and group C (32 normal eyes of controls).There was no significant difference in age (t=0.865) and gender (x2=0.000) in IMH patients versus normal control subjects (P＞0.05).There was no significant difference in refraction (F=0.957) and ocular axial length (F=0.562) between group A,B and C.The SFCT was detected by enhanced depth imaging of spectral-domain optical coherence tomography (OCT).The CBFA was detected by OCT angiography.The differences of SFCT and CBFA in three groups were analyzed by Kruskal-Wallis and non-parametric test.Results The mean SFCT was (182.53 ±64.52) μtm in group A,(199.21 t73.07) μtm in group B and (254.21 ±56.85) μtm in group C respectively.The SFCT was thinner in group A and B than that in group C (Z=-4.362,-3.190;P＜0.05),but was the same in group A and B (Z=-1.171,P＞0.05).The mean CBFA was (5.09±0.31) mm2 in group A,(5.41 ±0.20) mm2 in group B and (5.39±0.15) mm2 in group C respectively.The CBFA was reduced in group A than that in group B and C (Z=-4.467,-4.048;P＜0.05),but was samc in group B and C (Z=0.420,P＞0.05).Conclusion SFCT and CBFA are both reduced in IMH eyes.

Objective To develop a HIS architecture based on.NET in C/S environment,so that the different functional modules of the HIS can be easily loaded into the architecture to improve the efficiency of HIS development and reduce development costs.Methods The proposed HIS architecture underwent hierarchical structure design,and was composed of boundary,logic,data access and physical layers.The user input data through the boundary layer,responded to the user request through the logic layer,and reacted to the request from the logic layer through the data access layer to realize database access.The boundary,logic and data access layers transferred data through the physical layer which was used as the data carrier.C# language of Visual Studio 2008 was applied to the development of the architecture program.Results The system could conveniently load each function module in HIS of the hospital,which greatly facilitated the developer to control the function of the program.Conclusion The system meets the requirements of medical staff and management to the software,improves the efficiency of HIS system development,and reduces the cost of system development.

Objective To compare the efficacy and safety of venlafaxine and paroxetine in the treatment of comorbidity of depressionwith anxiety disorder. Methods 86 cases simultaneously conformed to depression and anxiety disorder accepted venlafaxine (group A) orparoxetine (group B) for 8 weeks. They were assessed with Hamilton Rating Scale for Depression (HAMD) and Hamilton Rating Scale forAnxiety (HAMA) before and 1, 2, 8 weeks after treatment. Results There was no significant difference in the scores of HAMD and HAMAbetween both groups before treatment, and there was since 1 week after treatment (P<0.05). 45.4% were clinically cured and 75.0% improvedin group A, which was 33.3% and 66.6% in group B 8 weeks after treatment (P<0.05). Conclusion Venlafaxine is more efficaciousthan paroxetine on anxiety and depression comorbidity.

Objective To evaluate the necessity of concomitant bladder cuff and the possibility of distal ureter sparing surgery during radical nephroureterectomy of low-level upper urinary tract tumors. Methods Clinical data of 73 patients with low-level (Tis-T3 M0 N0 ) tumors of the proximal upper urinary transitional epithelial cancer treated in radical nephroureterectomy in our hospital from 2000 to 2007 were analyzed retrospectively. The medical charts and pathologic specimens of 35 patients with, and 38 patients without, concomitant bladder cuff were reviewed. Results In the 35 patients with concomitant bladder cuff resection, 8 cases (22.9%) recurrence was observed; in the 38 patients without concomitant bladder cuff resection, 8 cases (21.1%) recurrence was observed. There was no difference between both groups(P>0.05). In the 19 patients suffered renal pelvis tumors with concomitant bladder cuff resection, 4 cases (21.1%) recurrence was observed; In the 16 patients suffered ureter tumors with concomitant bladder cuff resection, 4 cases (25 %) recurrence was observed.There is no difference between patients of renal pelvis tumors and of ureter tumors with concomitant bladder cuff(P>0.05). In the 27 patients suffered renal pelvis tumors without concomitant bladder cuff resection, 3 cases (11.1 %) recurrence was observed; in the 11 patients suffered ureter tumors with concomitant bladder cuff, 5 cases (45.5%) recurrence was observed. There was significant different between patients of renal pelvis tumors and of ureter tumors without concomitant bladder cuff (P<0. 05). Conclusion Concomitant bladder cuff resection confers a favorable prognosis to the patients with ureter tumors, but not to the patients with renal pelvis tumors.