0.05), and there was significant differences in the negative score of PANSS (t=6.13, P

Objective\ To observe the expression of coreprotein gene in human lumbar discs in foetus and adult. Methods\ The coreprotein cDNA probe was prepared by RT-PCR. The mRNA level and distribution of coreprotein was observed in fetal and adult lumbar discs, using in situ hybridization method. Results\ 1) The highest expression lies in the lumbar nucleus pulposus of the fetal discs, less higher expression in the interior of the annulus fibrosus and the region between nucleus and annulus fibroses. 2) In adult disc tissue, few positive signals were shown. Low gene expression level of coreprotein in the subcultured disc cells was expressed. Conclusion\ The higher expression of coreprotein in fetal discs is chiefly located in the nucleus pulposus.

BACKGROUND:Hip’s anatomy structure is complex, and the traditional two-dimensional imaging, such as X-ray film or CT scan, is susceptible to image overlap and other soft tissue. As a result, there are some limitations in the diagnosis of hip disease. The digital model is built based on reverse engineering and rapid prototyping. It is comprehensive, intuitive and accurate of the stereo configuration of the hip and the spatial relations of other parts’ anatomical structures. This study has a broad application prospect. OBJECTIVE:To reconstruct the personalized three-dimensional entity model of the hip bone with computer aided technology. METHODS: The human hips were scanned with a portable three-dimensional laser scanner, and then the point cloud data of the hips were gotten. The point cloud was processed and the three-dimensional model reconstruction was carried out by using the engineering software Geomagic and the computer aided software CimatronE. Three-dimensional print of hip was completed and the model was gotten, which was consistent with the geometry of hip bone, through the rapid prototyping machine. RESULTS AND CONCLUSION:A model with good geometric similarity and biomechanical characteristics was built by digital modeling method based on reverse engineering and rapid prototyping. This way of digital modeling provided the basis for digital manufacturing of artificial hip, virtual assembly, stress analysis and surgical simulation.

Objective To study the clinical value of heart‐type fatty acid binding protein(H‐FABP) ,high‐sensitive cTnI(hs‐cT‐nI),homocysteine(Hcy)andcystatinc(Cys‐C)intheearlydiagnosisofacutemyocardialinfarction(AMI).Methods 150casesof AMI patients with coronary arteriography (AMI group) were selected from the cardiovascular department admitted within the first 6hours of chest pain attack .An additional 30 case for control group .The level of four novel cardiac marker were measured in each group of serum .Results The level of serum H‐FABP ,hs‐cTnI ,Hcy and Cys‐C in AMI group were markedly higher than control group(P<0 .05) ,and rose with the increase of coronary artery lesions with statistical difference (P<0 .05) .Each cardiac markers showed high specificity in the diagnosis of AMI ,amongst which H‐FABP and hs‐cTnI ,stood out with sensitivity of 97 .34% and 89 .98% respectively .With Youden index ,positive likelihood ration ,negative likelihood ration ,positive predictive value and negative predictive value ,H‐FABP and hs‐cTnI appeared to have higher diagnostic value than Hcy and Cys‐C in AMI .Conclusion H‐FABP and hs‐cTnI displayed significant clinical value as a most sensitive indicator in the early diagnosis of AMI (within 6 hours of attack) . The level of H‐FABP ,hs‐cTnI ,Hcy and Cys‐C elevated as coronary artery lesions increase .

Objective To observe the influence of hands-washing and non-hands-washing on clinical disinfection effect before surgical hands antisepsis.Methods Totally 40 surgcal staff wee divided into the handa-washing group and the non-hands-washing group.The sterilizing effect of handa at diggerent time points during operations and kinds of bacteria colony were compared between two groups.Results Bacteria colony of hands at different time points during operations showed no significant difference between two groups.Both groups were detected bacteris colony on their hands,mainly made up of coagulase negative staphylococcus,corynebacterium and eaterococcus and no difference was seen between two groups.Conchusions The non-hands-washing method can acquire the same disinfection effect as traditional hands-washing method.Its disinfection effect lasts three hours,easy to operate,little stimulation on the skin,and was worthy of clinical application.

Objective To evaluate the expression and clinical significance of matrix metalloproteinase 14(MMP-14) in osteoar-thritis(OA) patients in synovium and synovial fluid of knee joint .Methods Semi-quantitative RT-PCR were used to detect the ex-pression of MMP-14 mRNA in 32 case of OA (experimental group)and 26 non-OA patients(control group)synovium ;protein level expression of MMP-14 in synovial fluid were analyzed by ELISA .Results The expression of MMP-14 mRNA in experimental group synovium of knee joint was significantly increased compared with control group (P<0 .05);but the protein level of MMP-14 was low in experimental group synovial fluid compared with control group (P<0 .05) .Conclusion The expression of MMP-14 is increased in OA patients synovium and maybe promote the progress of OA directly ;the protein level of MMP-14 is decreased in OA synovial fluid ,indicated the function of MMP-14 in OA synoviocyte indirectly .

Objective To study the cardiac function effect of allopurinol for hypemricemia combined with dilated cardiomyopathy patients.Methods One hundred and twenty hypemricemia combined with dilated cardiomyopathy patients were divided into allopurinol group and control group according to the treatment method with 60 cases each.All the patients were given conventional treatment,the control group was added the nitroprusside treatment,and the allopurinol group was added the allopurinol and nitroprusside treatment.The treatment period was 3 months.Results The total effective rate in allopurinol group was significantly higher than that in control group [90.0％ (54/60) vs.75.0％ (45/60)],there was statistical difference (P ＜ 0.05).After treatment,the left ventricular ejection fraction and left ventricular posterior wall thickness at end-systole in allopurinol group were significantly higher than those in control group [(67.85 ± 7.12)％ vs.(30.78 ±7.00)％ and (1.40 ±0.20) mm vs.(1.16 ±0.18) mm[,but the left ventricular internal diameter at end-systole,left ventricular internal diameter at end-diastole and left ventricular posterior wall thickness at end-diastole were significantly lower than those in control group [(4.72 ± 0.41) mm vs.(6.48 ± 0.47) mm,(2.93 ± 0.32) mm vs.(5.56 ± 0.62) mm and (0.77 ± 0.13) mm vs.(0.92 ± 0.18) mm],there were statistical differences (P ＜ 0.05).After treatment,The uric acid,urea nitrogen and creatinine were significantly lower than those in control group [(45.43 ± 11.24) μ mol/L vs.(167.23 ± 19.22) μ mol/L,(10.23 ± 7.12)mmol/L vs.(40.93 ± 8.09)mmol/L and (32.01 ± 8.34) mmol/L vs.(78.09 ±9.11) mmol/L],there were statistical differences (P ＜ 0.05).Conclusion Allopurinol used for treating hyperuricemia combined with dilated cardiomyopathy patients can reduce uric acid,early reversal the atherosclerosis and improve heart function,it should be widely applied research.

Objective To investigate the clinical efficacy and treatment method for no midline shift-severe craniocerebral trauma accompanied with post-traumatic acute diffuse brain swelling (PADBS).Methods 60 PADBS patients were randomly divided into conservative treatment group and operation group,30 patients in each group.The operation group was treated with intracranial pressure monitoring by implantation of the probe and decompressive craniectomy,while the conservative treatment group received conservative treatment.The postoperative recovery was observed.Results The GCS scores of operation group postoperative 7d and 15d were (11.21 ± 2.24) and (12.88 ±2.31),which were obviously higher than (7.47 ± 1.51) and (8.19 ± 1.28) of the conservative treatment group (t =2.215,2.321,all P ＜ 0.05).Postoperative long-term follow-up results indicated that,according to GOS score,63.3％ patients in the operation group recovered well,which was significantly higher than 26.7％ in the conservative treatment group.While the percent of patients with coma or dead was 6.7％ and 10.0％ in the operation group,which were significantly lower than the conservative treatment group (x2 =15.721,4.172,3.84,all P ＜ 0.05).Conclusion In general,PADBS could not be cured easliy,the operation methods of using intracranial pressure monitoring and decompressive craniectomy based on conservative treatment could help to evaluate the trauma objectivly,detect the changes of disease earlier,treat in time and assess the prognosis accurately,all which would reduce the mortality.

Diastolic transmitral blood flow was measured by Doppler echocardiography in 66 patients with hypertension and 33 normal persons. The results showed that isovolumic ventricular relaxation time and peak. A velocity increased and E/A ratio decreased significantly in hypertensive patients without left ventricular (LV) hypertrophy. Patients with LV hypertrophy had not only significant change of these parameters, but also significant decrease of peak E velocity and deceleration of E velocity. Left atria was larger in hypertensive patients, especially in those with LV hypertrophy. It is suggested that LV diastolic dysfunction in patients with hypertension may occur before the development of LV hypertrophy, and LV hypertrophy may worsen the diastolic dysfunction.

Our study investigated the neurotoxicity of quinolinic acid (QA) to spiral ganglion cells (SGCs), observed the protective effects of N-methyl-D-aspartate (NMDA) receptor antagonist MK-801 and magnesium ions on the QA-induced injury to SGCs, and analyzed the role of QA in otitis media with effusion (OME)-induced sensorineural hearing loss (SNHL). After culture in vitro for 72 h, SGCs were exposed to different media and divided into 4 groups: the blank control group, the QA injury group, the MK-801 treatment group, and the MgCl(2) protection group. The apoptosis rate of SGCs was analyzed by Annexin V and PI double staining under the fluorescence microscopy 24 h later. SGCs were cultured in vitro for 72 h and divided into four groups: the low concentration QA group, the high concentration QA group, the MK-801 group, the MgCl(2) group. The transient changes of intracellular calcium concentration were observed by the laser scanning confocal microscopy. Apoptosis rate in QA injury group was higher than that in blank control group and MgCl(2) protection group (both P<0.05), but there was no significant difference between MK-801 treatment group and blank control group (P>0.05). In high concentration QA group, there was an obvious increase of the intracellular calcium concentration in SGCs, which didn't present in low concentration QA group. In MgCl(2) group, the peak values of the intracellular calcium concentration in SGCs were reduced and the duration was shortened, but the intracellular calcium concentration in SGCs had no significant change in MK-801 group. It was concluded that QA could injure SGCs by excessively activating NMDA receptors on the cell membrane, which might be the mechanism by which OME induced SNHL, while Mg(2+) could protect the SCGs from the neurotoxicity of QA.