Female ; Humans ; Infant ; Metabolism, Inborn Errors ; Methylmalonic Acid ; blood

Objective To investigate the changes of coagulation and fibrinolysis systems in patients with solid cancer. Determine the mechanism of thrombosis formation in solid cancer and the the metastasis mechanism of solid cancer.Methods To measure plasma concentrations of TF,TFPI,t-PA,u-PA,PAI-1 by ELISA and test protein C activity(PC:A)by chromogenic substrate assay.Results Plasma concentrations of TF,TFPI,u-PA,PAI-1 were all higher in solid cancer patients than normal control and higher in metasta- sized team than non-metastasized team.In the dead team,u-PA and PAI-1 were higher while TFPI was low- er. t-PA was higher in cancer patients combined with venous thromboembolism while protein C activity was lower.Conclusion Disorders of coagulation and fibrinolysis system are related to the thrombosis formation in solid cancer.Coagulation and fibrinolysis factors take part in the metastasis progress of solid cancer. High concentration of u-PA and PAI-1 or low concentration of TFPI are considered to be related with poor outcome.

Drug Resistance, Neoplasm ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Female ; Humans ; Ovarian Neoplasms ; drug therapy ; radiotherapy ; Radiation Tolerance

Purpose To investigate clinicopathologic fea-tures of sacral cellular schwanoma and the difference from sacral conventional schwanoma.Methods Eight cases of sacral cellular schwanoma were collected.Microscopic examination and immunohistochemistry were performed for studying the clinical feature,radiologic appearance,pathologic characteristic,immunophenotyping,differential diagnosis and postoperative prognosis.Results There were 5 females and 3 males,whose mean age was 46.4 years.The majority of patients complained of pain in sacrococcygeal region.Radiographically,there was an endosacral or endosacral and presacal mass.Histologically,cellular schwannoma was composed of spindle cells,arranged in interlacing fascicles without nuclear palisading and Verocay bodies.Antoni A and Antoni B were not seen overtly.The destruction of bone was found.Immunohistochemically,tumor cells were diffusely and strongly positive for S-100 protein and vimentin.The mean of Ki-67 index was 6％.Tumor recurrence of 4 cases occurred several years after initial surgical resection.The mean interval to recurrence was 6.5 years.Conclusion Sacral cellular schwanoma is a rare tumor.Compared with sacral conventional schwanoma,it shows different growth pattern and pathologic features.So pathological diagnosis of the tumor should be noted for clinical follow-up and treatment.

Adolescent ; Adult ; Aged ; Case-Control Studies ; Child ; Female ; Flow Cytometry ; Humans ; Male ; Middle Aged ; Platelet Glycoprotein GPIIb-IIIa Complex ; metabolism ; Purpura, Thrombocytopenic ; diagnosis ; metabolism ; Young Adult

ObjectiveTo investigate the correlation of brainstem auditory evoked potentials(BAEP) and somatic evoked potentials (SEP) with therapeutic outcome of brain stem hemorrhage patients.MethodsBAEP and SEP were detected in the early period of 25 caees with brain stem hemorrhage by evoked potential instrument,and were surveilled dynamically.ResultsThere was good prognosis in the patients whose BAEP and SEP were normal in the first time and repeated detection.Poor prognosis happened in ones whose BAEP and SEP were abnormal in the first time and repeated detection.The difference was significant between them(P＜0.05).ConclusionCombined detection and dynamic surveillance of BAEP and SEP could predict accurately the curative result of patients with brain stem hemorrhage.

Objective To investigate the biological effect of 50 Hz sinusoidal electromagnetic fields at 1 mT on the proliferation of the human osteosarcoma cell line MG-63.Methods Osteosarcrma MG-63 cells were divided into control and experimental groups.The control group was incubated without an electromagnetic field; the experimental group was incubated in a 50 Hz,1.0 mT sinusoidal electromagnetic field.On the 2nd,4th and 6th day,their proliferation was determined using a cell counting kit-8(CCK-8)assay.Variations in the cell cycle were detected with flow cytometry(FCM).Semi-quantitative reverse transcription-polymerase chain reaction(RT-PCR)was used to measure cyclin B1 and cyclin D1 mRNA.Results Compared with the control group,proliferation of the experimental group cells was reduced significantly.The percentage of cells at G0-G1 phase increased,and the mRNA expression of cyclin B1 and cyclin D1 was significantly reduced.Conclusions A 50 Hz sinusoidal electromagnetic field at 1.0 mT can inhibit the proliferation of osteosarcoma cell line MG-63 significantly.

Hypoxiaisoneofthemostimportantfactorsinfluencingcancertherapyandclinicalprogno-sis.With positron emission tomography (PET)widely adopted in clinical practice,the development and appli-cation of PET hypoxia imaging agents has been much popular in the field currently.PET hypoxia imaging can detect tumor hypoxia region noninvasively,which has important significance for optimizing cancer treatment decisions and improving the prognosis of cancer.

A piece of news was introduced into pharmacology course examination.Students were asked to make comments on the news based on pharmacology knowledge or principles.All points of view were summarized and given back to the students after the examination. The right way to answer the question was discussed and a consensus on the answer was reached.lt was indicated that the teaching method in the trial is helpful for improvement of students' overall analytical skills.

The structure, reaction mechanism and molecular biology of Leuconostoc mesnteroides dextransucrase are reviewed.