BACKGROUND:Previous studies have shown that nerve function may achieve different degrees of recovery in most patients after transvertebral transposition of the spinal cord for repair of spinal cord nerve compression and kyphoscoliosis. However, the effective mechanism of the proposed method to improve postoperative nerve function is stil not clear. OBJECTIVE:To investigate the improvement in neurological outcomes after transvertebral transposition of the spinal cord and posterior correction in patients suffering from neurologic deficit secondary to angular kyphoscoliosis. METHODS:Eighteen patients suffering from neurologic deficit secondary to angular kyphoscoliosis underwent transvertebral transposition of the spinal cord and posterior correction. Preoperatively and 1 week postoperatively, al patients were subjected to somatosensory evoked potential detection. During operation, motor evoked potentials and somatosensory evoked potentials were monitored. Using MRI, the distance from the inner edge of the spinal canal to the outer edge of the convex side of the spinal cord at apical region was measured, and the distance of spinal cord transposition was calculated. RESULTS AND CONCLUSION:(1) There were no significant differences in terms of the latency and amplitude of posterior tibial nerve P40 (preoperatively versus intraoperatively:amplitude:(1.66±0.29)μV vs. (1.68±0.28)μV, P>0.05;latency:(39.25±3.02) ms vs. (38.68±2.67) ms, P>0.05). (2) After surgery, the major curve was improved with (51.1±21.2)%correction rate, and the mean kyphosis was improved with (38.9±18.1)%. The distance between spinal cord and canal on the convex side at the apex was decreased by (2.4±1.7) mm on average. (3) The amplitude and latency of posterior tibial nerve P40 at 1 week postoperatively were (2.21±0.40)μV and (34.98±2.83) ms, respectively (P<0.05). (4) These results suggest that posterior correction and internal fixation can remarkably improve neurophysiological index and nerve function in patients with neurologic deficit secondary to angular kyphoscoliosis.

[Objective]To explore the dependability between heredity and hallux valgus.[Method]A total(1 491) cases of family heredity of hallux valgus patients were investigated,the ages of these patients,ages of onset,ages of aggravation,hallux valgus angles were analyzed statistically.[Result]Conclusive family medical history exists in 69.48% of the(1 491) hallux valgus patients.There was distinguished difference between the patients with family history and those without heredity background on visiting ages,ages of onset,ages of aggravation;but no any difference between these two groups of patients on hallux valgus angles.[Conclusion]Heredity factor is the main cause of hallux valgus.It can influence only the onset of hallux valgus,but not the severe degree of latter.The patients with family history are earlier than those without heredity background about visiting ages,ages of onset,ages of aggravation.

To analyze the outcome of allogeneic peripheral blood stem cell transplantation(allo PBSCT) for hematological malignancies and prevention of complications, forty one patients with hematological malignancies were treated with allo PBSCT. One regimen of prophylaxis for acute graft versus host disease(GVHD) was the combination of cyclosporine(CsA)and methotrexate(MTX),another mycophenolate mofetil(MMF) with cyclosporine and methotrexate .The results showed that all patients were successfully engrafted .The incidence of over grade Ⅱ acute GVHD after HLA matched transplantation was 21 05%(8/38). Chronic GVHD occurred in 19/25(76%) patients. Three of thirty four patients with acute leukemia(CR 1 ) and CML(CP) after HLA matched transplantation relapsed(8 82%). The disease free survival was 71 43%(10/14) after follow up for more than 2 years. The results suggest that the incidence of acute GVHD in allo PBSCT appears to be similar to allo BMT, but the incidence of chronic GVHD in allo PBSCT is higher than that in allo BMT. Infection and interstitial pneumonitis are the main cause of death.

Objective To establish a practical and effective predictive model for predicting carotid plaque/thickened intima,and to provide a novel perspective for stroke screening.Methods A retrospective analysis of the community screening data collected from September 2012 to March 2013 was performed.The data of blood pressure,serum lipid profile and fasting blood glucose and ultrasonographic checks of carotid artery were documented.One thousand subjects were randomly sampled from totally 14 226 individuals and divided into 2 groups according to the presence of carotid plaque/thickened intima.Analysis of relevant data of subjects with Logistic regression were performed.Predictive model was established according to the odds ratio for each risk factor and evaluated by C statistics.Results In the randomly sampled 1000 subjects,164 ones were found to be with carotid plaque/thickened intima.The mean age was (60.23 ± 10.09) years old,110 (67.1％) were male.Smoker,hypertension,angina pectoris,diabetes and hyperlipidemia were seen more often in the subjects with carotid plaque/thickened intima.Logistic regression analysis showed the independent risk factors for carotid plaque/thickened intima included advanced age (OR =1.15,95％ CI:1.12-1.84,P＜0.01),male (OR=3.97,95％CI:2.49-6.33,P＜0.01),smoking (OR=1.80,95％CI:1.24-2.56,P =0.002),diabetes (OR =1.80,95％ CI:1.15-2.98,P =0.012),hypertension (OR =2.82,95％ CI:1.15-2.98,P ＜ 0.01),high total cholesterol level (OR =1.63,95％ CI:1.31-2.02,P ＜ 0.01) and high LDL-C (low density lipoprotein-cholesterol) level (OR =1.70,95 ％ CI:1.35-2.14,P ＜ 0.01).The advanced age was found to be the strongest predictive factor in this model.The C statistics of this model is 0.804,which overweighs other models previously reported.The optimal cutoff point for prediction was 3.5,with a sensitivity of 0.713 and a specificity of 0.757.Conclusion An practical and effective model for predicting carotid plaque/thickened intima established from sampling data of community residents is favorable for both stroke screening and primary stroke prevention.

The process of exercise regulating bone metabolism is complicated, which involves a number of signaling pathways. A large number of studies in vitro have indicated that mechanical stress regulates bone metabolism by Wnt, bone morphogenetic protein (BMP), and osteoprotegerin (OPG)/receptor activator of NF-κB ligand (RANKL)/receptor activator of NF-κB (RANK) signaling pathways. Both the in-tensity and frequency of mechanical stress have varing impact on bone tissue and cells. Plenty of studies in vivo also have shown that exer-cise regulates bone metabolism by key factors in bone metabolism signaling pathways. This paper reviewed the effects of exercise on bone metabolism pathways and their mechanisms.

Objective:3D hydrogel cell model was established,and cyclic compressive loading on MC3T3-E1 cell with different intensities,frequencies and durations was applied,in order to research the suitable solution about promoting the osteoblast differentiation with cyclic compression.Methods:Cyclic compressive loading on MC3T3-E1 cell was applied with different intensity,frequency and time.After compressive loading finished,the total RNA extraction from cell-gel constructs were performed and quantified ATF4,ALP,Runx2,Osteocalcin,RANKL and RANK mRNA.Results:RANKL and RANK mRNA expression significantly with different frequencies cyclic compressive loading (P ＜ 0.05),and ALP mRNA (P ＜ 0.05) and Runx2 mRNA (P ＜ 0.01) expression significantly with different intensities and frequencies cyclic compressive loading (P ＜ 0.05).Meanwhile,Runx2 mRNA expression with 4h significant higher than 12h (P ＜ 0.05),and RANKL mRNA expression with 4h significant lower than 12h (P ＜ 0.05).Conclusion:Determine the stress intensity and frequency,1％ intensity,frequency of 0.5 Hz,4 h of cyclic compression intervention could promote the growth of osteoblasts-like cells in the 3D hydrogel model.

Objective To select and identify human leukocyte antigen(HLA)-A2-restricted T-cell epitope within heparanase(Hpa),and to provide aeademic bases for peptide-based immunotherapy with malignant tumor.Methods The Hpa sequence was scanned for prediction of the immunogenic peptides-based CTL epitopes using the HLA-binding prediction software SYFPEITHI and BIMAS.Ten the affinity of candidate epitopes to HLA-A2 was evaluated by T2 binding test.Acfivation of T cell was assessed by ELIS-POT and cytotoxictiy by lactate dehydrogenase(LDH)release assay.Results of the six predicted nona-peptides,Hpa(310-318,FLNPDVLDI)showed high affinity of binding to HLA-A2 and led to IFN-γ secre-tion in vitro.Furthermore,Hpa(310-318) FLNPDVILDI could induce PBMC from a HLA-A2 positive healthy donor to lyse specifically HCC-LM6 and SW-480 cells which expressing both Hpa and HLA-A2.Conclusion The nona-peptide Hpa(310-318)FLNPDVLDI may be all HLA-A2-restricted CTL epitope.which is capable of inducing Hpa-specific CTL in vitro.

Objective To evaluate the curative effect and safety of mild hypothermia on patients with traumatic brain injury. Methods According to the cochrane systematic review methods , the data bases such as Cochrane, Pubmed, Embase, CBM, CNKI, Wanfang and VIP database were searched. The quality of included documents were assessed to extract meta analysis data. Results Compared to the control group, there was no statistically significant difference in patients treated by hypothermia for 3 days or less in mortality , but the difference was statistically significant after the summary [RR=0.74, 95%CI 0.64~0.85,P<0.000 1]; And there was no statistically significant difference in improving neural function of patients treated by hypothermia for < 3 days , but hypothermia improves the prognosis after the summary [RR=1.40,95%CI 1.24~1.59,P<0.000 01]. The difference was statistically significant in the incidence of pneumonia (P=0.007), there was no statistically significant difference in the incidence of arrhythmia (P=0.06), but the difference was statistically significant after sensitivity analysis. Conclusions Patients treated by hypothermia for < 3 days is not valid for clinical outcomes , the duration of the treament up to 3 days may not reduce mortality rates, but can improve the prognosis, lasts longer than 3 days or until the pressure back to normal, reducing the mortality rate, improve the neurological prognosis;but increased incidence of pneumonia, whether to increase the rate of cardiac arrhythmias have yet to be determined.

Objective Mild hypothermia provides protection for the brain and improves prognosis in the treatment of severe traumatic brain injury, which is widely acknowledged.The article aimed to analysis the prognosis and complications of long-term and short-term mild hypothermia on patients with severe traumatic brain injury. Methods According to the cochrane systematic review methods, thorough search was carried out in databases including Cochrane, Pubmed, Embase, CBM, CNKI, Wanfang and VIP.Eval-uation was made on the quality of selected documents, and Revman5.2 software was applied for meta analysis after data extraction. Results Long-term mild hypothermia achieved improved prognosis compared to short-term mild hypothermia ( GOS score 4 ~5 ) [RR=1.37, 95%CI (1.14, 1.64), P=0.0006].No significant difference was found between these two therapies in pneumonia in-cidence (P=0.94), arrhythmia incidence ( P=0.54) and stress ulcer incidence (P=0.99). Conclusion In comparison to short-term hypothermia therapy, long-term mild hypothermia therapy improved the prognosis of patients with severe traumatic brain inju-ry without obvious increase in the incidence of pneumonia, arrhythmia and stress ulcer.