Objective To solve the conflict between data security and sharing in hospital so that patients can get their clinical data through result query service system.Methods Advanced secure data-exchange technology was used to realize network isolation.Integrated result query service system adopted the embedded system as hardware and the embedded LINUX operation system as software.Results Through LAN query module,internet query module and the secure data-exchange module,the design of HIS multimedia query system was realized.Conclusion Via the application of HIS integrated query platform,the design of the hospital secure data exchange is proved to be feasible,reliable and practical.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Male ; Middle Aged ; Sleep Initiation and Maintenance Disorders ; therapy ; Treatment Outcome

AIM: to assess the effectiveness of a combined procedure ( pars plana vitrectomy with temporary keratoprosthesis, vitreoretinal surgery, and penetrating keratoplasty). in the complicated cases and the risk factors for the surgical failure.METHODS: Restrospectively reviewed charts of patients who underwent penetrating keratoplasty in combination with vitreoretinal surgery between 1990 and 2005, with a follow-up of 3mo to 9a. Analysis was focused on ocular history, indications for surgery, visual acuity (VA), anatomic results, and complications.RESULTS: 18 eyes had light perception or VA of hand motions only. The best-corrected VA improved during the first 3mo, increased in 72.2% of all eyes, remained unchanged in 27.78%, and no decreased. In 3 of 18 eyes (16.67%), VA was better than finger counting and hand motions, and nine eyes(50%) showed useful vision (0.05) postoperatively. 10 eyes showed a clear corneal graft (55.56%). 2 eyes needs the second keratoplasty, Bullous corneal edema was evident in 3 eyes, band keratopathy was evident in a 3 eyes. 10 patients were observed for more than 2a;6 had a clear graft (60%). Two eyes (11.11%) had silicone oil-corneal endothelium contact and all of these grafts failed.CONCLUSION: Although the functional outcome of a combined procedure is limited by primary and secondary tissue destruction, preserving ambulatory vision is possible and thus improves the quality of life, at least in patients with single remaining eyes.

ObjectiveTo observe the retinal function and nerve fiber layer (RNFL) thickness after laser in situ keratomileusis (LASIK). MethodsLASIK was performed in 15 cases (30 eyes) with myopia after strict preoperative examination. All examinations such as vision, correction vision, diopter, intraocular pressure, corneal thickness, ocular axis, topography scan and fundus of eye examination were performed before and 1 day, 1 week, 1 month,3 months and 6 months after operation, as well as electroretinography (ERG), visual evoked potential (VEP), optical coherece tomography at same time. ResultsThere was not significant difference in the intraocular pressure, ERG and VEP 1 day after LASIK. The thickness of RNFL decreased 1 week after LASIK (P<0.05) and recovered 1～6 months later. ConclusionLASIK does not disturb the retinal function and RNFL thickness irreversiblely.

Animals ; Endoplasmic Reticulum ; metabolism ; Ischemia ; metabolism ; Male ; Molecular Chaperones ; metabolism ; Pressure Ulcer ; metabolism ; Rats ; Rats, Sprague-Dawley ; Subcutaneous Tissue ; blood supply

?AIM: To evaluate the effects on recovering of corneal wound and postoperative discomfort of different methods for primary pterygium.?METHODS: Forty-seven cases ( 60 eyes ) of primary pterygium were excised under microscope with limbal epithelial transplantation, with sharp dissection ( 24 cases, 30 eyes, Group A) and blunt dissection (23 cases, 30 eyes, Group B).All cases were followed up for 1d to 1mo.?RESULTS: The recovering of corneal wound was better in Group B on 1st day and 3rd day after surgery.Pain, photophobia and tears, foreign body sensation were more serious in group A on 1st day after surgery with a statistically significant difference (P=0.005,0.015,0.012). Pain, photophobia and tears, foreign body sensation were more serious in Group A on 3rd day after surgery with a statistically significant difference ( P=0.019,0.018, 0.015).There was no statistically significant difference on 1wk and 1mo after surgery (P>0.05).? CONCLUSION: Compared with sharp dissection, primary pterygium excised with blunt dissection can significantly improve recovering of corneal wound and postoperative discomfort.

Objective To explore the incidence, clinical characteristics, and prognosis of radiation encephalopathy (REP) in nasopharyngeal carcinoma (NPC) patients after intensity-modulated radiotherapy (IMRT). Methods 870 NPC patients confirmed pathologically and without distant metastasis received radical IMRT,570 of which received chemotherapy simultaneously,and followed up for 6 -104 months (with a median of 40 months),undergoing magnetic resonance imaging (MRI) once every 3 months within the first 3 years after treatment and then once every year.The clinical manifestations were observed.In 29 of these 42 patients diagnosed as with REP,the dose distributions of REP lesions were evaluated.Results 4.83％ of the NPC patients (42/870) were diagnosed as with REP.There were 39 cases with pure temporal lesion (bilateral in 6 cases),with a median latency period of 30 months (6 -56 months),2 cases with pure cerebral stem lesion both with a latency period of 14 months,and one case with lesions in temporal lobe and cerebral stem with the latency period of 18 months.REP was not observed in the stage T1-2 patients.The incidence rate of REP was 3.09％ for the stage T3 patients and 14.35％ for the stage T4 patients.Twenty-two patients underwent following-up MRI after initial diagnosis of REP.After medication or surgical treatment the conditions became better or stable in the most cases. Dosimetric analysis of 32 injured temporal lobes in 29 patients found that the maximal dose was in the contrastenhanced lesions in 27 injured temporal lobes and in edema regions in 5 injured temporal lobes.For each patient,the maximal dose in the normal temporal lobe was lower than that in the injured temporal lobe.In the same patient,the maximal dose,minimal dose,and mean dose of contrast-enhanced lesions were all higher than those in the edema region.Conclusions The incidence of REP after IMRT is high,especially in local advanced NPC patients. Active treatment stabilizes or improves the REP condition. REP is positively correlated with dose of irradiation to brain tissue.

Objective:To synthesize autoinducer-2 by the clone and prokaryotic expression of Streptococcus mutans(S.mutans)UAl59 luxS gene and to observe the influence factors.Methods:The expression vector pET21 a(+)-luxS of S.mutans UAl59 was transformed into Escheriehia coli BL2l(DE3).The S-ribosylhomocysteinase(Luxs)expression was induced by IPTG.The His tag fusion protein was isolated by Ni-chelating column and identified by Western blotting.Finally the protein was renatured by dialysis method.S-ribosylhomo-cysteine (SAH)was catalyzed by s-adenosylhomocysteine nucleosidas (Pfs)and LuxS,and then AI-2 was syntheszed.The AI-2 activi-ty was examined by luminescence of Vibrio harveyi BB1 70 when the concentration of LuxS protein or pH(4 -1 2)or the concentration of sodium fluoride was changed in reaction mixes of AI-2 synthesis.Results:Compared with the control group,with the increase of LuxS protein concentration,the relative activity of in vitro synthesized AI-2 increased gradually(P <0.001 ).When pH was between 6 -1 0, the relative activity of AI-2 were the highest,beyond the range of pH,the relative activity of AI-2 decreased(P <0.001 ).When a final concentration of sodium fluoride was more than 0.3%,the luminescence values decreased(P <0.05).Conclusion:LuxS fusion protein can promote the production of AI-2.Optimum pH for AI-2 biosynthesis in vitro must be between 6-1 0.Biosynthesis of AI-2 is inhibited by sodium fluoride with final concentration of more than 0.3%.

BACKGROUND:Xenogeneic ligament is readily available, which has ligament scaffold structure and is conducive to tissue ingrowth and creeping substitution. After processing, the xenogeneic ligament, with the presence of good growth scaffold function, can be completely eliminated antigenicity that can cause immune rejection. OBJECTIVE:To study the feasibility of biological xenogeneic ligament graft instead of alogeneic ligament graft for reconstruction of goat anterior cruciate ligament. METHODS: Twenty-four healthy adult goats were randomly divided into A, B, C groups, and then, the left knee joints of goats were removed to establish animal models of anterior cruciate ligament injury in the three groups. After the establishment of the tibia and femoral bone tunnel, groups A, B, C were respectively transplanted with biological xenogeneic ligament graft combined with bone marrow mesenchymal stem cels, biological xenogeneic ligament graft alone, and alogenic ligament. RESULTS AND CONCLUSION: After implantation, no rejection but good biocompatibility was found in the group A, in which, the transplanted ligament as a functional scaffold for anterior cruciate ligament reconstruction, and new tissues in-grew and replaced the scaffold under intraarticular environment to form the new ligament with good bone tendon healing. However, there were no differences in histology, immune response, biomechanical findings between groups A and C. Additionaly, in the group A, the host tissues were found to grow into the scaffold and establish a micro-circulation. These findings indicate that xenogeneic ligament combined with bone marrow mesenchymal stem cels can accelerate the establishment of micro-circulation and promote the growth of ligaments, especialy improve the ligament revascularization significantly, but has no influence on the biological characteristics of the ligament.

Objective To detect the signaling pathways involved in aldosterone (ALDO)induced mesangial cell (MC) proliferation. Methods The incorporation of 3H-thymidine (3H-TdR)and cell count were used as the measure of mesangial cell (MC) proliferation. Reactive oxygen species (ROS) production was determined by DCFDA fluorescence. Epidermal growth factor receptor (EGFR) activation was assayed by Western blotting. Results ALDO induced MC proliferation.When incubation with 100 nmol/L ALDO for 24 h, the 3H-TdR incorporation and cell number increased by 2.63- and 2.15-fold, respectively. Mineralocorticoid receptor (MR) antagonist EPLE almost completely blocked ALDO-induced MC proliferation (P<0.01), however, glucocorticoid receptor (GR) antagonist RU-486 had no effect on MC proliferation. ALDO increased intracellular ROS production in cultured human MCs. When incubation with ALDO (100 nmol/L) for 60 min,ROS production increased by 2.14-fold. ALDO-induced ROS generation was completely blocked by EPLE as well as mitochondrial complex Ⅰ inhibitor rotenone (P<0.01=, NADPH oxidase inhibitors diphenyleneiodonium sulfate (DPI) and apocynin inhibited ALDO-induced ROS production by 30%to 35% (P<0.05=. In contrast, inhibitors of other oxidant-producing enzymes, including allopurinol,indomethacin, nordihydroguiaretic acid, ketoconazole and G-nitro-L-arginine methyl ester (L-NAME)had no effect on ALDO-induced ROS production. Antioxidant N-acetyl-L-cysteine (NAC) and ROT inhibited ALDO-induced MC proliferation by 75% to 80%, whereas the inhibition of NADPH oxidase inhibitor apocynin and DPI on ALDO-induced MC proliferation was 25% to 30%. ALDO induced EGFR transactivation. When incubation with 100 nmol/L ALDO for 60 min, EGFR phosphorylation was increased by 4.95-fold, which was completely inhibited by EPLE and antioxidant NAC (P<0.01=. NAC and EGFR antagonist AG1478 significantly blocked ALDO-induced MC proliferation (P<0.01=. Conclusions ALDO-induced MC proliferation is mediated by ROS-dependent EGFR transactivation. ALDO-stimulated ROS is mainly generated by mitochondria.