Neck shoulder pain or lumbocrural pain caused by intervertebral disc degeneration (IDD) could seriously affect the qualities life of patients. Current treatments mainly focus on alleviating pain and the symptoms of nerve compression, which could not radically stop the process of intervertebral disc degeneration, but conversely lead to high recurrence rate. In recent years, scholars have turned to study the biological treatment for repair and rebuild the intervertebral disc by biological molecular therapy, gene therapy, cell therapy and tissue engineering to solve the problem of intervertebral disc degeneration, while most of the above methods are still in animal experiments or in vitro experiments and the clinical application is still a long way to go.
Animals ; Biological Therapy ; Genetic Therapy ; Humans ; Intervertebral Disc ; metabolism ; Intervertebral Disc Degeneration ; genetics ; metabolism ; therapy

[Objective]To evaluate the therapeutic effect of treating AO type C fracture of the distal radius with open reduction LCP plate internal fixation.[Method]From Jan.2004 to Jan.2007,37 cases of AO type C fractures of the distal radius were treated with LCP plate internal fixation.All cases were fixated through volar approach,the length of radius,waist joint angle were recovered,screwed the plate,the exposure of dorsal soft tissues could be obtained by internal-rotate radius,allo-bone graft,and aoto-bone graft was necessary for the case with bone defect.Passive wrist motion,active finger motion and forearm rotation were encouraged immediately after surgery.Active wrist motion was suggested seven days postoperatively.[Result]The 37 cases were followed up for 8 to 21 months,with an average time of 11 months.X-ray pictures showed that one-stage union was achieved in the patients,with a mean healing time of eight weeks.No such complications were found as infection,non-union,loosing of nails,carpal tunnel syndrome or medium neuritis.Their clinical outcomes were evaluated according to modified McBride grading system.Twenty-five were rated as being excellent,eight as good and four as fair,with their good-excellent rate as being 89.18%.[Conclusion]Treatment of type C distal radius fracture with LCP plate internal fixation has many advantages,such satisfactory reduction,rigid fixation,and excellent function.

Objective To evaluate the effects on trabeculectomy combined with implantation of anterior lens capsule.Design Radomized,controlled experimental study.Participants 36 experimental albino rabbits.Methods 36 albino rabbits were divided into 3 groups randomly.The rabbit and human anterior lens capsules were implanted under the scleral flap in trabeculectomy in group A and group B respectively,while only trabeculectomy in control group.The average follow-up period was 12 months.Main Outcome Mea- sures Intraocular pressures(IOP),filtering bleb,complications.Results The postoperative IOP of the experimental groups decreased sig- nificantly as compared with preoperative IOP at 12 week postoperatively.Retention of reflective filtering bleb in experimental groups was longer than that in contral group(5.12?0.43week,5.05?0.59week,2.74?0.32week,P＜0.05).The passage of humor outflow kept open in ex- perimental groups and became closed in control group at 12 week postoperatively.Anterior lens capsule wasn't attacked by T or B lym- phocyte seen with electron microscope.Conclusions Implantation of anterior lens capsule may help to postpone filtering bleb scarring in the trabeculectomy.This study provides experimental basis for the clinical practice.

BACKGROUND: Cervical spinal cord injury without radiographic abnormality (SCIWORA) is a special type of spinal cord injury. Because of the particularity of children in the period of growth and development on the aspects of anatomy and biomechanics, their injured mechanism and therapeutic method differ from those of adults.OBJECTIVE: To explore clinical feature and therapy of first-episode cervical SCIWORA in children.DESIGN: Retrospective analysis and self pre-and post-control observation.SETTING: Department of Spine Surgery, Second Affiliated Hospital,Harbin Medical University.PARTICIPANTS: Totally 14 patients with cervical SCIWORA, who were treated at the Departmentof Spine Surgery, Second Affiliated Hospital,Harbin Medical University between June 1997 and June 2003. Inclusive criteria: ①patients who had dysfunction of sensation, exercise and sphincter to different degree in clinic, ②patients who had no fracture dislocation after cervical vertebra X-ray plain film and MRI examination. The MRI examination showed the sign of spinal cord injury. T1WI spinal cord became thick. T2WI distributed at strip-shape high-signal region along spinal prosenchyma and spread upward and downward. There were 3 patients with complete spinal cord injury and 11 patients with incomplete spinal cord injury, among the patients with incomplete injury, there were 6 patients with central cord syndrome (CCS), 3 with Brown-Sequard syndrome and 2withfrontal spinal cord injury syndrome.METHODS: Retrospective analysis was performed in 14 children patients with cervical SCIWORA. Thirteen patients were not treated with operation and one patient was treated with cervical posterior atlantoaxial fusion. MAIN OUTCOME MEASURES: ASIA grading before and after treatment in patients.RESULTS: There were 1 dead patient and 13 cases with 3-year follow up averagely. Three patients were with insignificant amelioration, and others had recovery of limb function to different degree. According to ASIA grading standard, before treatment there were 3 cases in A grade, 5 cases in B grade, 5 cases in C grade and 1 case in D grade, and after treatment there were 1 case recovering to B grade, 2 cases to C grade, 5 cases to D grade and 2 cases to E grade.CONCLUSION: Restoration of neurofunction of children with cervical SCIWORA has closely correlation with degree of primary injury of spinal cord. Most of the patients were not treated with operation, and those with obviously instable cervical vertebra can be treated with operation.

ObjectiveTo evaluate the ability of high resolution magnetic resonance (MR) imaging at 3.0 tesla to depict the characterization of human carotid arterial vessel wall and detect atherosclerotic lesions ex vivo in comparison to histopathologic results. MethodsEighteen carotid arteries obtained from 9 elderly donors underwent fat-suppressed T1 - and T2-weighted MR imaging at 3.0 tesla MR system with a mouse coil. Corresponding histological sections were obtained for the comparison. Correlation between MR images and histopathologic slices was obtained by Pearson or Spearman correlation coefficient.Cohen K was computed to quantify the agreement between MRI and histopathologic findings.Results Lumen area,intima and media area measured on fat-suppressed T2-weighted images showed stronger correlation with the corresponding histopathologic slices [ MRI vs.histopathology:( 27. 53 ± 6. 77 ) mm2 vs.( 25.83 ±6. 69 ) mm2, r2 ＝ 0. 91,P2 ＝ 0. 024, ( 12.31 ± 3. 31 ) mm2 vs.( 12. 28 ± 3.71 ) mm2, r2 ＝ 0. 70, P2 ＝ 0. 020,Median 12. 29 mm2(Min 1.12 mm2, Max 33.18 mm2) vs.Median 11.62 mm2(Min 0.89 mm2, Max 32. 84 mm2 ), r2 ＝ 0. 74, P2 ＝ 0. 016, respectively]. The Cohen K score between the MR imaging and American Heart Association classifications was 0. 74, which corresponds to a good agreement. Conclusions 3.0 T high-resolution multi-sequence MRI can clearly show the structure of ex vivo carotid artery wall and allow quantitative assessment.Fat-suppressed T2Wimaging has a greater advantagein presenting atherosclerotic lesions.

Objective To analyze the clinical and pathological characteristics of breast carcinoma in elderly female patients and to offer the standard clinical diagnosis and treatment for breast carcinoma.Methods A total of 178 patients admitted to Breast Center of Beijing Hospital from January to December 2011 were enrolled in this retrospective study.Patients were divided into non-elderly group and elderly group.Clinical features,imaging diagnosis,operation patterns and pathological diagnosis were recorded.The data were analyzed by using SAS 9.1 software.Results The patients diagnosed as breast carcinomas in BI-RAD 4-5 categories by mammography were much more in the elderly group than in the non-elderly group (82.1％ vs.63.0％,P＜0.05).The diagnostic accuracy rates of ultrasonography and mammography in the elderly group were comparable(P＞ 0.05),while in the non-elderly group,the diagnostic accuracy rate of ultrasonography was higher than that of mammography (P＜0.05).The incidence of concurrent diseases was higher in the elderly group than in the non-elderly group (P＜0.05).The patients undergoing breast resection operation were much more in the elderly group than in the non-elderly group (14 cases vs.3 cases,P＜0.05).The pathological diagnosis analysis showed that there were no significant differences in the number of ER-positive cells and PR-positive cells,tumor size,histological grade,pathological stage between the two groups (all P＞0.05).The incidence of lymph node metastasis was lower in the elderly group than in the non-elderly group (P＜0.05).The percentage of Ki-67 positive cells was lower in the elderly group than in the non-elderly group (P＜0.05).The percentage of CerbB-2 strongly positive (+++) cells was lower in the elderly group than in the non-elderly group (5.1 ％ vs.24％,P＜0.05).The invasive ductal carcinoma was the major histological type of breast cancer in both two groups,but there were more mixed type and other type carcinomas in the elderly group than in the non-elderly group (P＜0.05).Conclusions Ultrasonograpy and mammography have better sensitivity for breast cancer in elderly female patients.The surgical protocols are often influenced because more concurrent diseases have occurred in the elderly.There are significant differences in some prognostic factors between the two groups,which may imply a better prognosis in elderly patients.

Objective To investigate outpatients' awareness of the essential medicine system and their intention to use it at county hospitals,analyze the problems in the implementation process and give suggestions.Methods Using questionnaires to survey randomly intercepted patients.Data so acquired were keyed in twice with Epidata 3.0 and SPSS 16.0 was used for analysis featuring descriptive statistics.Results Among the 1064 patients surveyed,only 159 (14.9％)have heard of essential medicines,and the top three ways of awareness were respectively from medical staff,television and Internet; patients pay most attention to drug efficacy in their daily life and the majority of them follow doctors' advices.Conclusion It is necessary to strengthen promotions,formulate diversified publicity strategy,train doctors to guide patients to use essential medicines rationally.

Objective To study the clinical significance of P - selection expression in children with viral encephalitis and the correlation between this expression and the cerebral infarction with critical viral encephalitis. Methods Flow cytometric was employed to detect the expression of P- selection on the surface of platelet membrane in 44 children with viral encephalitis(20 light patients and 24 critical patients) and 20 healthy control children. The area of the cerebral infarction was determined by computed tomographic scan in 20 patients with critical viral encephalitis. The correlation between the two variables was analyzed. Results The expressions of P - selection on the surface of platelet membrane on less than 5 days and on 2 weeks after the onset of viral encephalitis were significantly higher in critical patients than those in normal control children and light patients( P

Objective To investigate the roles of adrenomedullin(ADM) and endothelin-1(ET-1) in left-to-right shunt congenital heart disease(CHD) complicated with congestive heart failure(CHF).Methods Plasma ADM and ET-1 concentrations were measured by radioimmunoassay in heart failure stage and recovery period of 18 infants with left-to-right shunt CHD.Also 20 healthy infants acted as control group were measured.Results Plasma concentrations of ADM and EF-1 were significantly higher in heart failure stage of left-to-right CHD infants than those in their recovery period,and both in their heart failure stage and in their recovery period were higher than that in control group(P

Objective To investigate the application value of virtual touch tissue quantification (VTQ) technique in staging of chronic kidney disease (CKD). Methods VTQ examination was performed on a random sample of 96 CKD patients at different clinical stages and 45 healthy volunteers (control group). Shear wave velocity (SWV) of renal parenchyma was measured and compared. Correlation between SWV and clinical stage and glomeru-lar filtration rate (GFR) of CKD patients was analyzed. Results The SWV value of renal parenchyma decreased gradually, along with the progression of CKD disease and impairment of renal function. There was no significant difference(P>0.05)between the control group and the CKD1 group ( P=0.061), the CKD2 group and the CKD3 group (P = 0.238), and the CKD4 group and the CKD5 group (P = 0.624). The difference of SWV between the remaining groups was statistically significant(P < 0.05). SWV of renal parenchyma was negatively correlated with CKD stage (r =-0.65, P < 0.001), which means the higher the stage of CKD was associated with the lower the SWV. SWV was positively correlated with GFR (r = 0.73, P < 0.001), which means the lower the GFR was related to the lower the SWV. Conclusion VTQ technique can noninvasively reflect the changes of renal parenchyma elas-ticity and evaluate the impairment of renal function in CKD patients. It can provide a new quantitative evaluation index for the clinical staging of CKD.