To date, three techniques of total spondelyctomy were used for spinal tumor, including piecemeal technique, eggshell technique and total en bloc spondelyctomy, and each has specific features and indications. Due to limitations of technique, piecemeal technique and eggshell technique are gradually replaced by total en bloc spondelyctomy in treatment of spinal tumor. Moreover, with technical development, application of total en bloc spondelyctomy in treatment of spinal tumor becomes more rigorous and standard. However, it is controversial about its indications and surgical approach. Postoperative spinal stability reconstruction is achieved through various methods according to different conditions.

Dendritic Cells ; Humans ; Rhinitis, Allergic, Perennial ; Rhinitis, Allergic, Seasonal

Objective To confirm the role of human parvovirus B 19 ( B19) infection in childhood immune thrombocytopenia ( ITP) patients.Methods A total of 416 cases of newly diagnosed childhood ITP patients from Jan .2011 to Dec.2013 had been summarized to be cases group , Then a total of 130 childhood patients with common respiratory tract infection were selected randomly as the control group . All patients had been divided in grouped by age as <1 years group(n=187), 1-3 years group(n=127), 3-7 years group(n=71), and 7-14 years group(n=31).The incidence rate of B19 infection in all age groups, the prognosis conditions in B19 infection positive and negative groups after the same therapy protocol were obserred .Results The B19 infection rate had no statistical significance in re-search groups and control groups .And no significant difference in the same age groups compared with control groups (all P>0.05) was found.All the ITP patients had not been given anti -B19 treatment.The PLT remission rate,respectively, after treated with the same pro-tocol including glucocorticoid and/or immunoglobulin had a declining trend as the ages increasing .The B19 infection groups of all ages al-so had no significant difference PLT remission rate had been confirmed in non -B19 infection patients in each age groups (all P>0.05). Conclusions B19 infection may not be a major cause in childhood newly ITP , and treatment protocol with no anti -B19 treatment had no influence on the clinical curative efficacy .

BACKGROUND:Tissue engineering requires a lot of seed cells. Osteoblasts have become important seed cells in bone tissue engineering. However, it is difficult to culture the osteoblasts, and cellnumber, purity, proliferation and differentiation activity are different obtained by different culture methods. OBJECTIVE:To identify and compare three common primary osteoblat culture methods, and to explore a method for the primary culture of osteoblasts which is easy to operate, economical and effective, in order to provide basis for the further experimental research. METHODS:Calvarias were dissected from newborn Sprague Dawley rats in 72 hours, and osteoblasts were isolated with col agenase digestion method, sequential digestion method and bone tissue method respectively. The morphological observation and cytochemical staining were performed, the growth curve of the cells was drawn with cellCounting Kit-8 method, and the rate of living osteobalsts was counted with trypan blue staining. RESULTS AND CONCLUSION:The proliferation of the insolated and cultured osteoblasts was wel with typical characteristics of osteoblasts, cytochemical staining results were positive. Compared with the sequential col agenase digestion method, the col agenase digestion method presented higher production of osteoblasts and higher cellsurvival rate (P<0.05), and the col agenase digestion method was easier than the sequential col agenase digestion method and cost less than sequential col agenase digestion method. Bone tissue method was the easiest method with less damage to cells, but bone tissue method presented lower production of osteoblasts and cost much more time, which cannot be used in large-scale osteoblast culture. The col agenase digestion method is a simple, efficient and ideal method for isolation and culture of primary osteoblasts.

Objective To construct prokaryotic expression vector of XTP3 gene and induce the expression of fusion protein in E.coli,and prepare XTP3-specific rabbit polyclonal antibody,detect the specificity of the antibody in hepatic carcinoma tissue and normal liver tissue.Methods DNA fragment of XTP3 amplified by PCR was inserted into pET-32a(+) to construct prokaryotic expression vector pET-32a(+)-XTP3.After identified by sequencing,pET-32a(+)-XTP3 was transformed into E.coli BL21 and induced with IPTG.After analyzed by SDS-PAGE and Western blotting,the induced expression product was purified and renatured by Ni+ affinity column chromatography.The purified protein was used to immunize New Zealand rabbits to gain polyclonal antibody,and the polyclonal antibody was then detected by ELISA,immunohistochemistry and Western blotting.Results Prokaryotic expression vector pET-32a(+)-XTP3 was successfully constructed,and the XTP3 fusion protein of about 52kD was highly expressed in E.coli.DS-PAGE showed that the protein product was mainly in inclusion body.The purified protein and polyclonal antibody were obtained successfully.It was manifested by ELISA that the titer of polyclonal antibody was over 1∶128 000.Immunohistochemistry showed that XTP3 antibody presented membrane-positive in hepatic carcinomous tissue.Conclusions The recombinant XTP3 protein and polyclonal antibody have been obtained successfully.These results lay a foundation for studying the immuneogenicity and bionomics of XTP3 protein.

Objective To incestigate the fetures of cranial CT and MRI in the patients with hypertensive encephalopathy. Methods The CT and MRI findings of ten cases of hypertensive encephalopathy with the charge of CT,MRI appearance of FLAIR (fluid attenvated inversion-recovery), DWI(difussion weighted imaging),ADC(apparent diffusion coefficient) were analyzed retrospectively. Results Of ten patients,3 cases had abnormal finding in the cranial CT;10 cases had abnormal finding in the cranial MRI,the lesions were demonstrated as slightly hypointensity on T1WI and slightly hyperintensity on T2WI and remarkably hyperintensity on FLAIR,and iso or slightly hyperintensity on DWI,and remarkably hyperintensity on ADC.The lilateral parietal occipital lobes and cerebellar hemisphere and Brain Stem were the more common sites. Conclusions The only characteristric finding of hypertensive encephalopathy in MRI and CT imaging studies is vasogenic edema,especially in the subcortical white matter of the parietal and occipital lobes bilaterally,and cereballar hemisphere et al;especially FLAIR,DWI and ADC of MRI can be helpful for diagnosis and diffenential diagnosis,prognosis and curative effect of hypertensive encephalopathy.

Objective To assess the tolerance of elderly patients with esophageal carcinoma to chemoradiotherapy through.Methods A retrospective analysis of 596 elderly patients with esophageal carcinoma receiving chemoradiotherapy was conducted.Patients were divided into radiachemotherapy group and radiotherapy group,and according to age,patients were divided into four age groups (aged 70-74,75-79,80 80 and 85years and over).The tolerance to treatment was assessed by Charlson index.Results 185 patients completed chemoradiotherapy,113 patients reduced the dose of chemotherapy (reduction group),81 patients unfinished chemoradiotherapy (unfinished CRT group),160 patients completed radical radiotherapy alone (unfinished RT group),and 57 patients incompleted radiotherapy.Further analysis found that the tolerance to treatment in reduction group had significant differences between patients aged ≥ 75 years and ＜ 75 years (x2 =6.815,P=0.009),and between WIC ≥ 1 and ＜ 1(x2 =10.636,P=0.001); the tolerance to treatment in unfinished CRT group had significantly differences between aged ≥ 80 years and ＜80 years (x2 =63.842,P=0.000),and between WIC =0,1 and ≥ 2 (x2 =21.153,P=0.000).Conclusions Further age re-grouping and WIC assessment is necessary before treating esophageal cancer patients.Reduction of therapy dosage is more beneficial for patients aged ≥ 75 years and WIC≥1,and greater caution is required in chemotherapy for patients aged ≥ 80 years and WIC＞1.

Objective To evaluate the possible causes of misdiagnosis of minimal breast carcinoma (MBC). Meth-ods The possible causes of misdiagnosis of 90 cases of MBC confirmed by pathology were retrospective analyzed. Accord-ing to the maximum diameter of the lesion, 90 cases were divided into 0.5-1.0 cm group (n=55) and≤0.5 cm group (n=35). And these two groups were subdivided into correct and misdiagnosed groups. The two-dimensional ultrasound findings were observed by using SIEMENZ S2000, GE vivid7 and GE vivid9 color Doppler ultrasound instruments, and reasons of misdiag-nosis were analyzed. Results There were 32 cases were misdiagnosed in 90 patients with MBC. There was significant differ-ence in boundary of misdiagnosis between diameter 0.5-1.0 cm group and≤0.5 cm group. There were significant differences in boundary and calcification between misdiagnosed group and correct group in diameter 0.5-1.0 cm group (P<0.05). There were also significant differences in A/T ratio and accompanying by multiple benign nodules between misdiagnosed group and correct group in diameter≤0.5 cm group (P<0.05). Conclusion The misdiagnosis in MBC is because of different lesion sizes. The misdiagnosis happens in the maximum diameter of the lesions between 0.5-1.0 cm that showed manifestation of sharp edges, no micro-calcification in sonographic features of benign. The misdiagnosis happens in maximum diameter of le-sions≤0.5 cm that manifested as the aspect A/T ratio<1 and characterized by multiple nodules.

Objective To evaluate tumor angiogenesis and clinical significance by contrast-enhanced CT in case of non-small cell lung cancer (NSCLC). Methods 30 patients with NSCLC underwent dynamic thoracic CT, and histopathological slides were carefully prepared for VEGF immunohistochemical staining. Maxium attenuations of dynamic CT were compared with VEGF expression levels and lymph-node metastases. Results The mean peak attentation was (36.28?6.41)HU, VEGF positive expressions were in 21 patients, and negative expressions were in 9 patients. VEGF expression levels in patients with NSCLC stage II and III were higher than those in stage I , and in lymph node metastases group, the expression levels of VEGF were also higher than those in non-metastatic nodes. CT enhancement of NSCLC was positively related to VEGF expression,neoplasm stage and lymph-node metastases. Conclusion CT enhancement of NSCLC can reflect tumor angiogenesis and correlate to lymph-node metastases closely, help lung cancer diagnoses,neoplasm stage, and serve as a supplement to the present staging system for lung cancer in biological behavior.

Objective To observe the acute skin and mucous membrane reactions in patients treated with concurrent radiochemotherapy for nasopharyngeal carcinoma,and to analyze the influencing factors.Methods A total of 85 nasopharyngeal carcinoma cases treated with concurrent radiochemotherapy were enrolled in the study.Fifteen clinical and laboratory indexes,including BMI,radiation dose,degree of acute oral mucous and skin reactions and blood routine test were observed weekly.Univariate and multivariate regression analysis were performed to assess the factors,and screen the independent factors.Results Multiple-factor analysis showed that the risk factors cloesly related with acute radioactive oral mucosa reactions were smoking history(OR =3.467,P ＜ 0.05),single-dose of gross tumor volume (GTV) ＞2.15 Gy(OR =3.393,P ＜ 0.05),while those with acute radiation skin reactions were diabetes history(OR =87.859,P ＜ 0.05) and hemoglobin values 1 week before radiotherapy ＞ 130 g/L (OR =21.404,P ＜ 0.05).Conclusions In the patients treated with concurrent radiochemotherapy for nasopharyngeal carcinoma,smoking history and single-dose of GTVnx is the independent risk factors of acute radiation oral mucosa reactions,while diabetes history and hemoglobin values I week before radiotherapy are the independent factors of acute skin reactions.