Objective To compare the adherent cells derived from human placenta,umbilical cord blood and bone marrow,and provide laboratory data for clinical application of mesenchymal stem cells.Methods Adherent cells were isolated from human placenta tissues by enzyme digestion,and mononuclear cells(MNC) were isolated from umbilical cord blood(UCB) by 60g/L HES and density gradient centrifugation and MNC were isolated from bone marrow(BM) by density gradient centrifugation,and then these cells were cultured in vitro.Their biological characteristics were studied and compared.Results The adherent cells cultured from human placenta and umbilical cord blood had disparate shape in vitro respectively.And they had some differences in growth and shape from those derived from bone marrow.The adherent cells derived from the three tissues all expressed CD106 and CD44 in immunohistochemistry staining.Conclusion The adherent cells derived from human placenta and umbilical cord blood have the basic features of mesenchymal stem cells.

Aged ; Anemia, Hemolytic, Autoimmune ; complications ; Female ; Humans ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; complications

Objective Investigation of the clearance rate of RBC in cerebral spinal fluid(CSF)after lumber subarachnoid space continuous drainage following subarachnoid hemorrhage(SAH)and the relationship with cerebral vasospasm(CVS) were carried out. Methods An experimental SAH was achieved in dogs by twice injecting fresh autologous arterial blood into cisterna magna of each animal.RBC counts in CSF were measured in the drainage group, puncture group and control group respectively.The degrees of CVS were analyzed through cerebral angiography(%reduction of basilar artery diameter,%RBAD). Results Comparing with puncture group and control group, the drainage group showed a significantly higher clearance rate of RBC with lesser occurrance and degree of CVS. Conclusions RBC and its degeneratives in CSF may be involed in the process of CVS following experimental SAH. Continuous lumber subarachnoid space drainage may prevent CVS.

Objective To explore our clinical experience on treatment of intracranial and extracranial arterial stenosis using multiple stents placement. Methods 17 stents were deployed into 12 arteries in 8 patients with intracranial and extracranial arterial stenosis. We utilized self expanding stents in extracranial carotid arteries and balloon expanding stents for intracranial arteries or vertebral arteries. Results All procedures were performed successfully and all stenoses were dilated and improved. Short term follow up angiogram revealed only one vessel occlusion and no significant restenoses in other stented vessels together with no recurence of clinical symptoms. Conclusions Multiple stents placement is a valid alternative for the treatment of intracranial and extracranial arterial stenoses.

Neoplastic stem cells (NSCs)are the source of tumor occurrence and development,and its special microenvironment is involved in tumor drug resistance,recurrence and metastasis by regulating NSCs or changing itself. Eradicating NSCs and interfering the special microenvironment may be the new therapeutic strategies for cancer.

Objective To identify objective methods for medical service performance evaluation,and means to improve the efficiency of medical services.Methods By means of collection of medical records from 10 tertiary hospitals in Yunnan in 2012,and Diagnosis-related groups of Beijing version(BJDRGs)as a risk-adjustment tool,medical service performance was made to such hospitals.Results The capacity,efficiency and medical safety of hospital of the hospitals were subject to a comprehensive evaluation of their medical service capabilities.In terms of discharged inpatients and total weight,hospital A were found to be the highest(77 458 cases,104 227.5 respectively),and hospital I the lowest(25 450 cases,38 162.28)among these hospitals in 2012; compared with other hospitals,DRG groups of hospitals A,b and D were found higher,while the case mix index(CMI)of hospitals e and I were higher.The expenditure index of hospital C is the lowest(0.9359,0.8514); the mortality in cases of low risk of hospitals B,c and D were the lowest,while hospital F was the highest.Conclusion DRGs as a risk adjustment tool,can significantly improve the reliability,science and continuity of medical service performance evaluation,providing reliable basic data for hospitals accreditation in Yunnan.

Adult ; Coronary Artery Disease ; complications ; etiology ; Female ; Heart Valve Prosthesis ; adverse effects ; Humans ; Mitral Valve ; surgery ; Myocardial Infarction ; etiology ; Postoperative Complications ; Thromboembolism ; complications ; etiology

Adult ; Chondroblastoma ; pathology ; Chondroma ; pathology ; surgery ; Diagnosis, Differential ; Female ; Humans ; Ovarian Neoplasms ; pathology ; surgery ; Ovary ; pathology ; Teratoma ; pathology

Cochlear Implantation ; Cochlear Implants ; Humans ; Music ; Pitch Perception

Objective:To observe the expression and correlation of eIF4E and c-myc in laryngeal squamous cell carcinoma.Methods:Western blot was applied to examine the expression of eIF4E and c-myc on tumor core,transition core and tumor-free core from 36 laryngeal carcinoma patients.The results were statistically analyzed.Results:The overexpression of eIF4E and c-myc protein levels suggests an increasing tendency from tumor-free core,transition core and tumor core;and shows an significant correlation of eIF4E and c-myc expression.Conclusion:The overexpression of eIF4E and c-myc cause the laryngeal carcinoma cell malignant transformation;the correlation of eIF4E and c-myc may provide a basis for gene therapy of laryngeal carcinoma.