Objective To design and construct a new bionic scaffold of nucleus pulposus tissue engineering. Methods The collagen-hyaluronic acid (HyA) matrices were prepared, and mixed with Collagen type Ⅱ (pH 1-2) and lyophilized. 6-chondroitin sulfate (CS) was covalently attached to collagen using 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS). Afterwards the initial structure of bionic scaffolds was evaluated. Results The bionic scaffolds were porous structure, of which the pore size was 89-132 ?m, the porosity was 94.8%. Water-binding capacity of resulting matrices was 79.2%, and the denaturation temperature was 74.6 ℃. Glycosaminoglycan (GAG) content was 224 mg/g, and the elastic modulus was 0.673 MPa. Conclusion Composition and tissue structure between the scaffolds are similar to the extracellular matrices of nucleus pulposus. The bionic scaffold is an ideal scaffold material of nucleus pulposus tissue engineering in structure. Further experiment is required on the biocompatibility of the novel scaffolds.

Objective\ To observe the practicality of sonography for differentiating the compression factors and judging whether thorough decompression anterior to the dura sac has been obtained. Methods Posterior midline incision was used in a total of 16 cases. After the laminae were resected, normal saline was poured into the operation field, and ultrasound examination performed with a 5.0 MHz sectorscanner. Combined with preoperative imaging (CT or MRI),the compression factors were differentiated. The isolated tissue(bone or disc)pieces in spinal canal were removed first,then reduction of approximate and distal parts of the injuried spinal column was obtained with the help of the Dick devices. Posteriorly protruded bone mass was tumbled in carefully supervised with sonography. The sonographic criterion for thorough decompression consisted of the reappearance of the anterior subarachnoid and an even and smooth echo of posterior dura mater. Results\ The sonographic criterion for thorough decompression was achieved in all cases. No bone mass posterior displacement was observed on postoperative rontgenogram or CT examination. Partial or complete recovery of neural function was obtained in 13 cases. Conclusion\ All elements contributing to anterior dura sac compression can be readily recognized by sonography,which offers a reliable criterion for complete decompression.

Objective To study the impact of depression disorder in patients after coronary stent implantation on incidence rate of in-stent restenosis (ISR) in the coronary heart disease( CHD ), and its possible pathophysiological mechanisms. Methods According to the Hamilton Depression Scale (HAMD-24) and Self-rating Depression Scale(SDS) score,95 patients with unstable angina received coronary drug-eluting stent implantation combined with depression disorder were serve as the study group; randomly selecte 246 cases without depression due to unstable angina pectoris after coronary stent implantation as the control group in the same period. The incidence rate of ISR in these two group were observed, and serum aldosterone ( ALD), high-sensitivity C-reactive protein (hs-CRP) ,Leptin levels in two groups were compared. Results The incidence rate of ISR in study group were significantly higher than that of the control group (28/95 vs 46/246, P＜0. 05). Following with the aggravation of depression disorder,the incidence rate of ISR were elevated( χ2 =8. 148, P=0.017). Serum ALD,hs-CRP and Leptin levels of study group were significantly higher than the control group 7 days later after drug-eluting stent implantation ( ALD:277.4 ± 35.9 vs 258.9 ± 60.9, t= 3. 459, P= 0. 001; hs-CRP: 12.03 ± 3.06 vs 11.10 ±2. 806, t = 2.573, P = 0.008; Leptin:5.27 t 1.07 vs 4.98 ± 0.99, t= 2.323, P= 0.021 ). Pearson correlation analysis showed that its HAMA-24 score was positively correlated with serum ALD ,hs-CRP and Leptin( r=0.291,P=0.026; r=0.350, P=0.014; r=0. 312, P=0.023) ,and SDS score was positively correlated with hs-CRP( r=0. 302, P= 0. 020). Conclusion Serum ALD, hs-CRP and Leptin levels are higher in patients after coronary stent implantation combined with depression in patients, and the incidence rate of ISR is also higher in these patients, and the rates are elevated according to the aggravation of depression disorder.

目的探讨生活事件心理社会因素在老年期抑郁症发病中的作用。方法应用生活事件量表(LES)对100例老年期抑郁症患者及100例正常老人进行对照研究。结果老年期抑郁症生活事件尤其负性生活事件频度及严重度均高于正常对照组;老年期抑郁症患者的生活事件中主要是健康问题和家庭问题。结论心理社会因素是老年期抑郁症发病的重要高危因素

Objective To evaluate the efficacy of stent-assisted coiling in the treatment of unruptured vertebral dissecting aneurysm. Methods We retrospectively reviewed 59 consecutive patients with unruptured vertebral dissecting aneurysms that underwent endovascular treatment. 31 patients received single stent-assisted coiling, 28 patients received multiple stent-assisted coiling. Results Clinical outcome was favorable in 56 of the 59 patients, the modified Rankin Scale score had no difference in both groups (P = 0.24). The immediate obliteration grade in multiple-stent group was higher than that in single-stent group (75.0% vs. 41.9%, P=0.010). What′s more, the recurrence rate was lower in multiple-stent group (0% vs. 19.4%, P = 0.043). Conclusions Stent-assisted coiling in the treatment of unruptured vertebral dissecting aneurysm is safe and effective , multilayer disposition of stents with coils will decrease the complications and facilitate the aneurysmal occlusion. Larger , prospective studies are necessary to explore the long-term outcomes of reconstruction therapy.

Objective To evaluate the clinical effect of endovascular embolization for the treatment of cerebellar arteriouvenous malformations (AVMs) associated with aneurysm, and to discuss its technical points. Methods The clinical data of 142 patients with cerebellar AVMs were retrospectively analyzed. Of the 142 patients, 42 had concomitant aneurysms. The patients were divided into concomitant aneurysm group and without aneurysm group. Using univariate and multivariate statistical models, the patient’s gender and age, the presence or absence of hemorrhage, the lesion’s location and size, and the presence or absence of deep venous drainage were analyzed. Results A total of 61 concomitant aneurysms were detected in the 42 patients, which were located within the malformation mass (n=14) or on the feeding artery (n=47). The concomitant aneurysms located in the malformation were closely related to AVM hemorrhage and the deep venous drainage. During the follow-up period after endovascular embolization, no recurrence of bleeding was observed in all the 42 patients. Conclusion In order to reduce the relapse rate of hemorrhage, the formulation of therapeutic measures should be based on the management of the concomitant aneurysm when endovascular embolization treatment is employed for AVM associated with aneurysm.

Objective To explore the therapeutic efficacy of percutaneous compression plate internal fixation in the treatment for elder-ly patients with interchanteric fractures. Methods All 17 patients with interchanteric fractures from March 2012 to January 2013 were trea-ted with percutaneous compression plate internal fixation(Fracture classification:type A1. 2 with 3cases,A1. 3 with 4cases,A2. 1 with 6 ca-ses,A2. 2 with 3 cases,A2. 3 with 1 case). After operation,the patients did functional exercises at the early stage. Then the efficacy were e-valuated and analyzed. Results Operation time was 30~80 min,with average time 50 min, blood loss was (40~100) mL,with average volume 60 mL,time of X-ray exposure was 12~22 s,with average time 20 s. All 17 patients were followed up for 3~18 months. Postoperative function were evaluated according to Harris Hip Score,15 cases were excellent,and 2 cases were good,the excellent and good rate was 100%. Conclusion Percutaneous compression plate internal fixation is suitable for the elderly patients of interchanteric fractures,with shorter oper-ation time,less blood loss,reliable fixation and less complications.

Formula granule of traditional Chinese medicine (TCM) has been characterized as a safe medication with the advantages of accurate dosage and easy to carry.In this study,references over current status of the development of TCM formula granule were retrieved,so were those of the market situation and its application to intelligent pharmacy of TCM.Then the key problems restricting the development of the application of TCM granules were discussed,in hope of providing a reference for the development and its application to the intelligent pharmacy of TCM.

Objective To explore the efficacy and safety of anxiety, depression, insomnia and other psychological and physical symptoms after trazodone treated in patients with alcohol dependence. Methods 100 patients whose met the inclusion and exclusion criteria were divided into trazodone group and the placebo group with a randomized, double-blind, placebo-controlled method. Each of the patients was oral trazodone, or placebo 3 times a day, each time a course of treatment was 8 weeks. Hamilton Anxiety Scale ( HAM A) , Hamilton Depression Rating Scale(HAMD) , Pittsburgh Sleep Quality Index(PSQI) , side effects scale (TESS) score and the necessary examinations were used to assess. Survey the re-drink situation after 1 year. Results 81 patients completed treatment, 19 patients were discharged or lost due to early treatment failure loss. In Trazodone group (41 cases) , the HAMA, HAMD and PSQI score before treatment and after treatment, total scores decreased gradually after 2 weeks of the three score and comfort dose group (40 cases) were the difference was statistically significant (P< 0. 05 ) ;recovery drink rate of trazodone group was significantly lower than the placebo group (24.4% vs 55. 0% , P<0. 05) after 1 year. After treatment, the side effects scale score difference was not statistically significant (P> 0. 05 ). Conclusion Improve trazodone treat alcohol dependence withdrawal anxiety, depression and insomnia effectively. Found no adverse drug reactions and the safety is high. Reduce the recovery drink.

Objective:To evaluate the importance of 3D-CTA with volume rendering for the diagnosis of multiple intracranial aneurysms. Methods: Axial source images were obtained by helical CT scanning and reconstruction of 3D-CTA images was done by volume rendering technique in conjunction with multiplanar reformation. Results: In the past one year,there were 10 patients diagnosed as having multiple intracranial aneurysms by 3D-CTA and altogether 24 aneurysms were visualized,including 10 small aneurysms(≤5mm.Three dimensional CT angiography with volume rendering demonstrated aneurysms very well and provided useful information concerning the site,shape,size and spatial relationship with the surrounding vessels and bone anatomy. Conclusion: Three-dimensional CT angiography with volume rendering is a quick,reliable,and relatively noninvasive method for diagnosing multiple intracranial aneurysms.It delineates detailed aneurysmal morphology,and provides useful information for planning microsurgical approaches.