Objective To investigate the expression of serum tumor markers in pancreatic carcinoma and to assess the value of serum tumor markers in the diagnosis and prognosis of pancreatic carcinoma. Methods Five serum tumor markers including AFP, CEA, CA199, CA125 and CA242 were detected in 95 patients with pancreatic carcinoma by chemi-luminescence immunoassay (CLI) and enzyme linked immunosorbent assay (ELISA), 80 patients with other malignant tumor and 65 patients with benign disease served as controls. Five tumor markers in pancreatic carcinoma diagnosis for TNM staging were compared. The value of tumor markers for prognosis was analyzed. Results Among these 5 kinds of tumor marker, CA199, CAI25, CA242 were valuable in diagnosis of pancreatic carcinoma, and CA199 was the most valuable one, whose sensitivity and specificity were 76.2 % and 74.8 % respectively. CA199, CA125, CA242 were increased with progression of pancreatic carcinoma. Conclusion Serum CA199, CA125 and CA242 are the preferred tumor markers to be used in the diagnosis and prognosis of pancreatic carcinoma.

[Objective]To discuss the spinal single side structure illness to the spinal column stable influence characteristic and the method of treatment,and to analyze the character of comparing the traditional three-column theory with the newly three-pyramidal-column theory.[Method]Through 2001-2006 year our hospital admited preservation integrity spinal single side structure illness 42 cases,among the total single side articular process illness 21 cases,single side vertebral plate illness 10 cases,Single side pedicle of vertebral arch illness 7 cases,single side more structure illness 4 cases.Through conservatively treats 11 cases,Single stage fixed 4 cases,the single stage two-sided fixed surgery treats 27 cases,thus,to analyze and revaluate three-pyramidal-column theory essence.[Result]Forty-two cases obtained the revisit completely,average follow-up for 28 months.Evaluates according to the Shi Shushan 's standard,the excellent 31 cases;the good 8 cases,the fair 3 cases.Good and excellent rate reached above 93%.[Conclusion]The spinal single side structure illness may lead to spinal pyramid tropic or scoliosis,and very little causes spondylolisthesis.The spinal colarnn is a three-pyramidal column lives by many triangles.Any colarnn or the angle being destructed will affect its stability.

Objective This retrospective study was perform to assess risk factors of the type A aortic dissection after aortic valve replacement,in order to provide a basis for devising a strategy for future treatment.Methods From 2009 to 2012,23 patients were found type A aortic dissection and 20 patients were found aortic aneurysm after aortic valve replacement in Beijing Anzhen hospital.Analysis the clinical,pathology and surgery procedure characteristics of these patients,and assess the risk factors for type A aortic dissection after aortic valve replacement.Results After aortic valve replacement,There were significant different in age (P =0.012),bicuspid aortic valves (P =0.014),aortic valve regurgitation (P =0.009) and postoperative pathoanatomical characteristics(P =0.001) between type A aortic dissection group and ascending aortic aneurysm group.Multivariate logistic regression analysis indicated that age(P =0.032),aortic valve regurgitation(P =0.046) and pathoanatomical characteristics(P =0.002) were important risk factor for type A aortic dissection after aortic valve replacement,respectively.Conclusion Older age,aortic regurgitation combined and thinned or fragile aortic walls with systemic hypertension in patients with ascending aortic dilatation (≥45 mm diameter) at the time of AVR might be predisposing factors for postsurgical type A aortic dissection.These patients should be considered for concomitant replacement or repair of the ascending aorta unless the patient has a high operative risk.

OBJECTIVE: To investigate the expression of CXCR4 in maxillary sinus carcinoma cells IMC3 under hypoxia. METHOD: IMC3 cells were cultured for 6 h, 12 h, 24 h and 48 h under normoxia and hypoxia. Real-Time PCR was applied to detect the expression of mRNA of CXCR4 and immunohistochemisrty was applied to investigate its protein level. RESULT: CXCR4 mRNA level was about 0.035 under normal conditions, which was obviously upregulated by hypoxia. The mRNA levels after culturing under hypoxia for 6 h, 12 h, 24 h and 48 h were 0.283, 0.313, 0.426, 0.510 respectively. There was statistically significant difference between the mRNA levels of each two groups (P < 0.05, Mann-Whiney Test) with a time dependent course, except for the difference between the groups of 6 h and 12 h. Immunohistochemistry showed that there was almost negative staining for CXCR4 in the cell cultured in nomoxia, while stong positive staining of CXCR4 was observed in cells cultured in hypoxia . The positive staining was located mainly in the cell membrane and cytoplasm and little in the nucleus. CONCLUSION Hypoxia could induce expression of CXCR4 in IMC3 cells at both mRNA and ptrotein levels. The upregulation of CXCR4 by hypoxia showed an obvious time dependent course.
Cell Hypoxia ; Cell Line, Tumor ; Gene Expression Regulation, Neoplastic ; Humans ; Maxillary Sinus ; metabolism ; pathology ; Receptors, CXCR4 ; metabolism

The present hospital information systems are analyzed,with finding that hospital information isolated island phenomenon getting worse due to failure of interconnection of various systems and equipment vendors with different technologies.An integrated platform based on an enterprise service bus is proposed for hospital information,which can be connected into these heterogeneous systems,effectively minimizing the inter-system coupling,and achieving data and service interconnection,enabling an integrated and intelligent hospital architecture.

Objective Methicillin-resistant Staphylococcus aureus (MRSA) is a growing public health concern that has been associated with pediatric fatalities. This study investigated the genotypes of staphylococcal cassette chromosomal mec (SCCmec) and Panton-Valentine Leukocidin (PVL) in MRSA strains isolated from Shanghai Children's Hospital by PCR. Methods A total of 30 strains of MRSA were isolated from various clinical specimens from October 2005 to June 2006. The antimicrobial susceptibility was measured by agar diffusion method. SCCmec typing was conducted using a novel multiplex PCR assay allowing for concomitant detection of methicillin resistance (mecA gene) to facilitate detection and classification of all currently described SCCmec typesⅠ, Ⅱ, Ⅲ, Ⅳa, b, c, d andⅤ. PVL gene was also determined by PCR. Results mecA gene was positive in all the strains. SCCmecⅡ was identified in 6(20.0%) isolates, SCCmecⅢ in 15(50.0%) isolates, SCCmecⅤ in 2 and SCCmecⅣa in 1 isolate. Six MRSA strains were non-typeable. The isolates with SCCmecⅡ or SCCmecⅢ were resistant to multiple antibiotics. The strains harboring SCCmecⅣa or SCCmecⅤwere susceptible to all antibiotics except β-lactams. Eleven (36.7%) isolates were PVL positive. The genotypes and subgenotypes of staphylococcal chromosomal cassette mec of eleven PVL-positive MRSA were SCCmecⅡ(1 isolates), SCCmecⅢ (5 isolates), SCCmecⅣa (1 isolate), SCCmecⅤ (2 iso-Lates) non-typeable (2 isolates). Conclusions SCCmecⅡ and SCCmecⅢ are the major genotypes of MRSA in our hospital. These isolates are multi-resistant to antibiotics. The prevalence of PVL gene is higher in SCCmecⅡ- or SCCmeⅢ-positive MRSA. The isolates with SCCmecⅡ or SCCmecⅢ were resistant to multiple antibiotics.

BACKGROUND:There are various methods for the treatment of osteonecrosis of femoral head, but there is no satisfactory method to promote the repair of osteonecrosis of femoral head. In recent years, bone marrow
mesenchymal stem cel transplantation for the treatment of osteonecrosis of femoral head has achieved certain effect.
OBJECTIVE:To review the application progress and problems of bone marrow mesenchymal stem cel transplantation for the treatment of osteonecrosis of femoral head.
METHODS:A computer-based online search was performed in PubMed database, Wanfang database and CNKI database for the related articles from 1999 to 2012. The articles on the isolation, culture, differentiation, labeling and in vivo tracing of bone marrow mesenchymal stem cel s were selected, as wel as the basic and clinical
researches on bone marrow mesenchymal stem cel transplantation for the treatment of osteonecrosis of femoral head. A total of 39 articles were included for review.
RESUTLS AND CONCLUSION:At present, the method for the isolation of bone marrow mesenchymal stem cel s includes adherence screening method, density gradient centrifugation, flow cytometry separation and magnetic activated cel sorting method;the commonly used method for cel labeling and tracing includes isotope tracing method, antigen labeling method, antigen labeling, fluorescent labeling and MRI contrast enhancer labeling
method. The method for the treatment of osteonecrosis of femoral head with bone marrow mesenchymal stem cel s includes pith dril ing decompression combined with bone marrow mesenchymal stem cel injection and
transplantation, intervention plus bone marrow mesenchymal stem cel transplantation, gene transfection combined with bone marrow mesenchymal stem cel transplantation and tissue engineering technology of bone marrow mesenchymal stem cel s. Although, the research on the bone marrow mesenchymal stem cel transplantation for the treatment of
osteonecrosis of femoral head has achieved great progress, there are stil problems needed to be further solved.

Objective To find T2N0M0 colorectal cancer patients at high risk for relapse or metastasis.Methods From January 1993 to December 2014,339 patients with histologically confirmed stage T2N0M0 primary colorectal cancer treated by radical surgery with complete clinical follow-up data were enrolled into this study.Survival rates were calculated using Kaplan-Meier method,and survival cures were compared using the Log-rank test.Cox proportional hazards model was used to analyze the significant factors defined in univariate test.Results The 5-year and 10-year overall survival rates were 83.0％ and 68.9％,respectively.Male gender,old age,lymphovascular involverment,perineural invasion,poor differentiation and invasive micropapillary carcinoma were associated with low cancer-specific survival rates in Kaplan-Meier analysis.Multivariate analyses revealed male gender,old age,lymphovascular involverment,poor differentiation and invasive micropapillary carcinoma as significant independent factors predicting poor prognosis.Conclusions Male gender,old age,lymphovascular involvement,poor differentiation and invasive micropapillary carcinoma are risk factors predicting poor prognosis for T2N0M0 colorectal patients.

Objective To establish the normal reference ranges of clinical pathology for Beagle dogs in the Good Laboratory Practice ( GLP ) system.Method Sixteen biochemical indexes , seventeen hematological indexs and three coagulation function indexes of 117 Beagle dogs were detected , and the mean value of each index and the normal reference ranges were calculated and compared .Results Only alkaline phosphatase ( ALP ) from the biochemical items was significantly different between males and females (P<0.01),which was higher among males than among females .Three in-dexes of hematology were significantly different between males and females (P<0.01),with red blood cell(RBC), hemo-globin(HGB)and hematocrit(HCT)lower among males than among females.The coagulation function items were not signif-icantly different between the two sexes .Conclusion Some indexes of clinical pathology were significantly different between males and females , which should be considered during statistic analysis on toxicity .Our study has established the normal reference range of clinical pathology for Beagle dogs in the GLP system , which provides reference for toxicity tests .

BACKGROUND:Sensorineural hearing loss is mainly caused by missing or damaged hair cells in the inner ear. Application of adipose-derived mesenchymal stem cells to regenerate inner ear hair cells is an effective treatment for hearing loss. OBJECTIVE:To explore the feasibility of in vitro inducing adipose-derived mesenchymal stem cells to differentiate into inner ear hair cel-like cells in guinea pigs. METHODS:Adipose-derived mesenchymal stem cells from guinea pigs were isolated and cultured to the 3rd generation. cellphenotype was detected using flow cytometry. Cytokines were added for induction and differentiation by stages, including epidermal growth factor, basic fibroblast growth factor, insulin-like growth factor-1, al-trans retinoic acid, brain-derived neurotrophic factor, neurotrophin 3. RESULTS AND CONCLUSION:Adipose-derived mesenchymal stem cells of guinea pigs cultured in vitro were fusiform and showed a swirled adherent growth. Passage 3 cells were positive for CDCD29 and CD44, but negative for CD34 and CD45. After induction, the cells were positive for nestin and GFAP positive at early stage;after 10-day continuous induction, the cells expressed Myosin VIIa and Math1, specific markers of hair cells, indicating that cytokines can directly induce adipose-derived mesenchymal stem cells to differentiating into inner ear hair cells in guinea pigs.