Objective To explore the clinical features,diagnosis and treatment of solid-pseudopapillary tumor(SPT)of pancreas.Methods The clinical data of 19 patients with SPT treated in 8 years were studied retrospectively,included 3 males and 16 females.Results The type of operation was decided by the size and location of tumor.Pancreatic leakage was a familiar complication,there were 9 cases.Patients were followed up from 3 to 70 months,and no recurrence or metastsis was found.Conclusion Pancreas SPT is a rare type neoplasm of pancreas.Pancreas SPT is affecting primarily young women,complete resection results in excellent prognosis.

Objective To investigate the teaching effects of Sandwich teaching mode applied in clinical oncology teaching.Methods Totally 72 clinical medicine undergraduates were divided into two groups randomly:Sandwich teaching group and traditional teaching group.Sandwich teaching mode was introduced to Sandwich teaching group while traditional teaching mode was carried out in traditional teaching group.Questionnaires and test paper were analyzed between the two groups and two teaching modes were evaluated.Examination results were statistically analyzed by t test.Results According to the questionnaires,more than 80 percent of the students thought that the initiative and enthusiasm were fully mobilized by the Sandwich teaching mode.Studying efficiency was improved significantly and skills of independent thinking,comprehensive analysis and problem-solving were trained,meanwhile,Sandwich teaching mode can improve the ability of expression and communication.Test score of students in Sandwich teaching group was higher than those in traditional teaching group (P＜0.05).Conclusions Sandwich teaching mode has obvious advantages in improving teaching quality of clinical oncology and it may help to cultivate high quality oncology specialists.

Objective To design and formulate price evaluation indexes for medical services and develop a framework of indexes for the comprehensive evaluation of price formulation and implementation for medical services so as to provide government departments with management and decision-making tools with regard to prices for medical services.Methods The theories and methods of the sciences of medicine,economics,statistics,prices,and evidence-based medicine were used to develop by means of the Delphi method an evaluation model and a framework of price evaluation indexes for medical services.Results The framework developed could well evaluate the following items in price formulation and implementation for medical services: the management goals of the government,the quality of medical services in the hospital,work efficiency,cost control,economic benefits,and the involvement and satisfaction of the citizens.Conclusion It is absolutely necessary to develop a framework of price evaluation indexes for medical services.The framework developed in the present study is able to meet the current needs of price evaluation for medical services.

An evaluation scale of medical services quality was developed on the basis of "patients' experience". The questionnaires were developed by, among others, searching relevant literature, collecting well-established assessment scales, measuring patients' experience and satisfaction, brain-storming, literature analysis. Delphi method was adopted for expert consultation. Scale items were screened and revised. The key indexes were converted. Field surveys were conducted for testing the reliability and validity of the scale. Our modified evaluation scale for measuring medical services quality based on "patients' experience" included 6 dimensions (tangibility, reliability, responsiveness, assurance, empathy and continuity), and 50 items. The novel scale based on "patients' experience" may better serve the purpose of assessing medical services quality.

Objective To explore the correlation factors for surgical treatment in lumbar spinal tuberculosis.Methods A total of 46 patients with lumbar spinal tuberculosis who underwent surgical treatment were analyzed.The possible correlation between the clinicopathologic features and clinical outcome were analyzed by Logistic regression analysis.Results Nine patients failed in surgical treatment.Multiple analysis showed that the number of infected vertebrae (OR =6.44,95％ CI:2.47-19.92) and internal fixation (OR =10.76,95％ CI:3.50-18.74) had significant correlation with the clinical outcome.Conclusions Surgical treatment for lumbar spinal tuberculosis has a favorable outcome in patients.The number of infected vertebrae and internal fixation are significant risk factors for poor outcome.

BACKGROUND:PA6 cells are bone marrow stromal stem cells from the mouse skul , and scientists have found that PA6 cells co-cultured with some kinds of stem cells have shown neural differentiation, based on which, PA6 cells can be used for repair of nerve injury. Therefore, researchers give more and more attentions to PA6, but few studies have addressed isolation and culture methods of bone marrow stromal stem cells from the skul . OBJECTIVE:To isolate and culture bone marrow stromal stem cells from the skul of Sprague-Dawley rats and to observe cellular morpholopy in vitro and perform immunofluorescence identification. METHODS:Under sterile conditions, newborn Sprague-Dawley rat’s skul was cut into pieces. Smal skul pieces were washed using Dulbecco’s modified Eagle’s medium containing 10%fetal bovine serum. Single cellsuspension was made, and placed in culture flask. The culture medium was changed many times for cellpurification. The second passage of cells was obtained for morphology observation under an inverted microscope. cellsurface markers were detected by using immunofluorescence staining. RESULTS AND CONCLUSION:After the primary culture for 24 hours, cells exhibited adherent growth;after 3 days, cells were increased in number, and presented with irregular shapes, such as polygon, triangle, spindle and flat shape. After passage, cells were uniform in morphology, arranged in radial and bunch patterns, and exhibited strong adherent ability. Some cells grew in cluster, and proliferated faster than primary cells. Immunofluorescence staining showed that cells were positive for CD105, CD73, CD44, CD90, but negative for CD45, D34,CD14, HLA-DR. Results indicate that this method can obtain bone marrow stromal stem cells.

131 I-metabolizing genes are markers for differentiation of thyroid carcinoma.The loss or down-regulation of these genes represents progression of dedifferentiation,which results in low 131 I uptake and suggests a poor prognosis.The mechanism of dedifferentiation of DTC is important for treatment.This article reviews the mechanism of dedifferentiation from 131I radiation damage,gene mutation,tumor markers and protein.

0.05). ② The Fo in groups 2 and 3 were (5.0?1.5) and (5.2?1.5) respectively, which were significantly lower than that in group 1 (6.1?1.2)(q=4.690, 3.383, P

Background and purpose:Thyroglobulin antibody (TgAb) is often positive in papillary thyroid carcinoma (PTC) patients. This study aimed to investigate the effect of TgAb on radioiodine ablation efficacy in PTC patients.Methods:A total number of 329 PTC patients with no distant metastasis were included and classified into 2 groups[G1 group (>115 U/mL,n=84) and G2 group (<115 U/mL,n=245)], G2 group was further divided into 2 subgroups[S1 (>40 U/mL,n=31) and S2 (<40 U/mL,n=214)], before131I ablation. The median follow-up time was 24 months after a total or subtotal thyroidectomy and subsequent131I ablation. The efficacy in terms of131I ablation success rates (IBR) between two groups were compared and the influencing factors were analyzed according to criteria posed by 2015 American Thyroid Association Guidelines, then the effect of131I dose on IBR was also explored.Results:Female and younger age were more prevalent in patients with high TgAb (P<0.05). The G1 group presented lower IBR over the G2 group (35.7%vs 72.7%,P=0.000). Moreover, S1 group also presented lower IBR over S2 group (54.8%vs 75.2%,P=0.017), indicating the adverse effect from high titer TgAb on IBR. No matter high or low dose, the G1 group presented lower IBR (34.1%vs 71.9%, 37.2%vs 73.2%;P=0.000). However, IBR did not differ in G1 or G2 group either with high or low dose131I (P>0.05). TgAb was the only adverse indicator correlating with IBR in multi-logistic regression analysis (P=0.018).Conclusion:TgAb could negatively affect131I ablation efficacy, while increasing the dose of131I failed to improve the success rate in such cases.

OBJECTIVE This study is to investigate the effects on nasopharyngeal carcinoma cell lines(CNE-2Z)induced by As2O3 and its possible mechanisms.METHODS CNE-2Z cells were treated with various concentrations of As2O3 for different times.The IC50 values were detected by trypan blue stain assay to choose the optimal concentration of As2O3.Cell cycle redistribution was analyzed by flow cytometry.The expression levels of p16、 RASSF1A、DNMT 3B mRNA were assessed by RT-PCR.RESULTS The suppression of cell proliferation by As2O3 was time and dose-dependent.After being treated with different concentration of As2O3,the IC50 values of As2O3 were(1.50?0.05),(1.09?0.13),(0.65?0.04)?mol/L at 24,48,and 72h,respectively.As2O3 also arrested CNE-2Z cells in G2/M phase of cell cycle.After CNE-2Z cells being treated with As2O3,the expression of RASSF1A mRNA were up-regulated(P