Objective To investigate the expression of proliferating cell nuclear antigen (Ki67) in hepatitis B virus (HBV) related hepatocellular carcinoma (HCC) tissue and its correlation with clinicopathological parameters of HBV related HCC. Methods HBV-related HCC patients (n=134) were divided according to Ki67 index (the percentage of Ki67-posi?tive cells) into Ki67 index<10%group (negative group, n=30) and Ki67 index≥10%group(positive group, n=104). The cor?relation of Ki67 index with age, gender, glypican 3 (GPC3), histological grade, BCLC (Barcelona Clinic liver cancer) staging, portal involvement, AFP (AFP), liver function related child-pugh classification data were calculated in both groups. Ki 67 in?dex is set according to the interval score to assess the relationship between Ki67 score and BCLC classification. Results (1) SP staining showed, Ki67 present a trend of increase from normal liver tissue to well-differentiated to medium differentiat?ed tissue to poorly differentiated tissues intensity. (2) In positive group, Ki67 index was correlated with BCLC staging, portal metastasis, histological grade, GPC3 and AFP (P<0.05);By contrast, in negative group, Ki67 index was not correlated with any clinical parameter (P>0.05). (3) Ki67 score increases with the progress of BCLC classification. Conclusion In Ki67 positive group, Ki67 index combined with GPC3, histological grade, BCLC staging, portal involvement, AFP and liver func?tion child-pugh classification can assess the severity of the patients with HCC, which is expected to become an important in?dicator for the HBV-related HCC early diagnosis.

0.05);the preoperative use rate was 8.6% and 65.1%(P0.05);both groups used drug mainly in vein and in single mode.CONCLUSIONS After the implementation of the Guideline the rational use of antibiotics is improved but there are some problems needed to manage further.

Clinical tutors' personality manifesting during the process of clinical practice and daily communication with medical interns has a series of influences on medical ethics formation of medical interns,including influences of direction,demonstration,contraction,and halo effect.Thus,clinical tutors should pay attention to cultivating a decent moral personality,and hospitals should value the proper combination of moral evaluation and supervision for medical staff in order to achieve the unity of heteronomous morality and self discipline,and effectively promote the formation of decent morality and personality of clinical tutors.

Objective To evaluate the effects of propofol on TREM-1 expression in THP-1 cells stimulated by lipo-polysaccharide (LPS). Methods Cells were divided into 7 groups: (1) control group; (2) LPS group that was exposed to LPS in final concentration of 100μg/L;(3) Progroup that was incubated with 100μmol/L propofol;(4-7) groups combined 100μg/L LPS with propofol at different dose of 12.5μmol/L (P1 group), 25μmol/L (P2 group), 50μmol/L (P3 group), 100μmol/L (P4 group) respectively. After 16 hours of incubation, the TNF-α concentration in supernatants were measured by ELISA. TREM-1 expression were examined by FACS and TREM-1 mRNA were detected using qRT-PCR. Results TREM-1 on THP-1 increased significantly in group P3 and group P4 compared with LPS group (P<0.05). The concentra-tions of TNF-αin P3 and P4 (P<0.05) decreased substantially in supernatant compared with LPS group. TREM-1 mRNA transcription level in group LPS rise considerably (P < 0.05) compared to that in control group, and it dropped greatly in group P4 (P <0.05) compared with that in group LPS. Conclusion Propofol could enhance TREM-1 expression on sur-face of THP-1 stimulated by LPS. Propofol reduces TNF-αlevel in culture supernatant. And propofol may restrain TREM-1 mRNA expression.

Objective To evaluate the clinical application of interventional therapy in all kinds of pelvic trauma emergency.Methods There were tolally 16 cases in this paper(13 male and 3 female, 17～45 years old with average 31 years old). All patients had blood loose shock ( different blood pressure drop, limb pulse weakness and so on ). The blood pressure was(50～100)mmHg/(20～60) mmHg before interventional therapy,emergency selective external iliac artery, internal iliac artery and/or bleeding artery embolization and artery occlusion broken operation were performed. After operation pay attention to observe the life physical sign.Results Bleeding of internal iliac artery trunk,internal pudendum artery and obturator artery was in 8,3 and 4 cases respectively;1 case had thrombosis in external iliac artery.After emergency interventional treatment, blood pressure rose again progressively and became stability(90～120) mmHg/(60～90) mmHg,no serious complication presented.Conclusion The interventional treatment is the rapid and reasonable selection to cure the pelvic closed vessal injury and to save life.

AIM: To explore the possibility of differentiating functional insulin-producing cells from human BM-derived stem cells. METHODS: Mesenchymal stem cells were isolated from human bone marrow. Then these cells were induced with epidermal growth factor, β-mercaptoethanol and high concentration of glucose. The gene expression related to islet β cells was detected by RT-PCR. Insulin in the treated cells was examined by immunocytochemistry. In addition, the levels of insulin secretion and glucose-stimulated insulin release were examined by microparticle enzyme immunoassay. Finally, the induced cells were implanted into the right renal subcapsular space of diabetic mice. Blood glucose levels were monitored 16 d after implantation. The right kidneys of the treated mice were harvested for immunohistochemistry. RESULTS: The key genes related to pancreatic β cells had been confirmed to express by PCR and insulin was detected by immunocytochemistry in differentiated human BM-derived stem cells induced by high glucose, which responded to glucose challenge. Furthermore, implantation of the cells in renal subcapsular space was able to lower the glucose levels in hyperglycemic mice. After 16 days, the implanted cells were determined still to be insulin positive cells by immunohistochemistry. CONCLUSION: These results indicate human BM-derived stem cells are capable of differentiating into functional insulin-producing cells and may represent a pool of cells for the treatment of diabetes.

Objective To discuss the possibility of differentiation of mesenchymal stem cells(MSCs)from umbilical cord blood(UCB)into hepatocyte-like cells in the in vitro culture.Methods MSCs were isolated from UCB,cultured and passaged.The surface markers were examined by flow cytometry.When cells were cultured to the third passage,they were inoculated into a 6-well plate.A two-stage induction method was used:MSCs in the first phase were cultured in DMEM/F12 medium supplemented with dexamethasone(final concentration of 0.5 μmol/L,the same below),hepatocyte growth factor(HGF,10 ng/ml),epidermal growth factor(10 ng/m1)and 1×insulin-transferrin-Se(ITS)for two weeks,then in DMEM/F12 supplemented with 0.5 μmol/L dexamethasone,10 ng/ml HGF,1×ITS,10 ng/ml Oncostatin M for another two weeks.Morphological changes were observed under a microscope.The gene expression correlated with hepatocytes was detected by using RT-PCR.Immunofluorescence staining was used to identify the expression of specific protein related to hepatocytes(AFP,Albumin,CK-18).Ultrastructure was detected under an electron microscope.Results In the cultured MSCs from UCB,CD34/CD45/CD14,CD54,CD49f and HLA-DR were not detected,there was low expression of CD106 and strong expression of CD29,CD44 and CD13.The gene expression of AFP,albumin,CK-18 and TAT was discovered and three kinds of protein AFP,albumin and CK-18 were positively showed in cytoplasm after 4 weeks'induction.The hepatin granules and fatty drops in cytoplasm of cells induced for 4 weeks were found under an electron microscope.Conclusion The MSCs fromUCB can differentiate into hepatocyte-like ceils in the in vitro culture under some conditions.

BACKGROUND: Reproductive activity of hepatocytes is limited. There are numerous studies concerning stem cells differentiation into hepatocytes, including embryonic stem cells, bone marrow cells, pancreas stem cells, neural stem cells, various sources of mesenchymal stem cells.OBJECTIVE: To explore the possibility of induction of mesenchymal stem cells (MSCs) from umbilical cord blood (UCB) into hepatocyte-like cells in vitro culture.DESIGN, TIME AND SETTING: A cytological in vitro study was performed at the Institute of Hematology, Medical College of Jinan University from October 2005 to April 2006.MATERIALS: Fetus cord blood was obtained from spontaneous delivery and caesarean delivered healthy pregnant women at the Department of Obstetrics and Gynecology, First Affiliated Hospital of Jinan University. The parturients signed the informed consents.METHODS: UCB-MSCs were incubated in vitro, and digested in trypsin-EDTA. The third passage of cells at 5 × 10~4 cells/cm~2 wereinoculated. Original medium was removed 48 hours later. Cells were washed in phosphate-buffered saline. In the first phase, cells were incubated in F12 medium supplemented with dexamethasone, hepatocyte growth factor, epidermal growth factor and 1 ×its for 2 weeks. In the second phase, cells were incubated in F12 medium containing dexamethasone, hepatocyte growth factor,oncostatin M and 1 × ITS for two weeks.MAIN OUTCOME MEASURES: The following parameters were measured: expression of surface marker of UCB-MSCs using flow cytometry, expression of related gene and protein of hepatocytes following induction respectively using RT-PCR and immunofluorescence staining.RESULTS: No CD34/CD45/CD14 of hematopoietic markers were detected, either no the CD54, CD49f, HLA-DR were found. The low expression of CD106 and high expression of CD29, CD44, CD13 were found. The gene expression of a-fetoprotein, albumin,CK-18 and TAT were discovered, and three kind of protein a-fetoprotein, albumin, CK-18 were positively observed in cytoplasm after 4 weeks of induction using immunofluorescence staining.CONCLUSION: UCB-MSCs are able to differentiate into hepatocyte-like cells in vitro culture following combination with many growth differentiation factors, such as dexamethasone, hepatocyte growth factor, epidermal growth factor, tumorigenesis M and ITS.

Using RT-PCR, we can detect measles virus hemagglutinin gene (H gene) of 635bp length directly from measles vaccine strain Shanghai-191, Edmonston strain, nasopharyngeal aspirates and throat swabs of the measles patients. The primers of RT-PCR based on H gene sequence of measles virus did not give the same products from rubella virus and influenza viruses (A1, A3, B). By second PCR amplification, the minimum quantity of measles virus required to give a positive signal was<0.01TCID50. Since the IgM antibody positive rate in early stage of measles patients is always low, the specificity and sensitivity of RT-PCR method may help diagnosing measles cases.

BACKGROUND: At present,there are many reports regarding the differentiation of bone marrow-derived mesenchymal stem cells or pancreatic gland stem cells into pancreatic islet β-like cells.But little is about umbilical cord blood-derived mesenchymal stem cells(UCBMSCs)differentiation into pancreatic islet β-like cells in vitro.OBJECTIVE: To investigate whether UCBMSCs can differentiate into pancreatic islet β-like cells in vitro and the optimal inducing condition.METHODS: UCB samples were obtained sterilely from healthy parturients.Nucleated cells were isolated by sedimentation with hydroxyethyl starch and MSCs were obtained by adherent method.Then purified UCBMSCs were induced with epidermal growth factor,β-mercaptoethanol,high glucose,Activin A and hepatocyte growth factor(HGF).Following cell morphology observation,induced cells were identified by insulin immunofluorescence.In addition,insulin secretion and glucose-stimulated insulin release were examined by chemiluminescence immunoassay.RESULTS AND CONCLUSION: After induction,many cells exhibited a round appearance and produced islet-like cell clusters.Immunofluorescence assay showed insulin positive in the treated cells.In addition,chemiluminescence immunoassay demonstrated low expression of insulin and secretion of insulin upon glucose challenge.UCBMSCs can differentiate into pancreatic islet β-like cells in vitro.