Objective To discuss the curative effect of Choledo-choledochostomy by observing different means of biliary duct reconstruction in the iatrogenic bile duct damage and the liver trans-plant. Method The clinical data of 19 patients who were found to have iatrogenic bile duct injury dur-ing operation and immediately repaired and 66 patients receiving liver transplantation in our hospital in the past 10 years were retrospectively analyzed. Meanwhile, the means for bile duct reconstruction were discussed. Results The rate of curative effect of the Choledo-choledochostomy was 86.6% for iatrogenie bile duct injury. However, whether to leave the T-tube or not was not a determinant factor for the procedure in liver transplantation (P>0. 05). Conclusion Choledo-choledochostomy has good curative effect for iatrogenic bile duct injury and liver transplantation. During the operation, the bile duct may not be excessively freed to guarantee blood supply in at the anastomosis site to further en-hance the curative effect.

Objective To analyze and compare thh effect of early surgical treatment and nonsurgical treatment for patients with traumatic severe acute pancreatitis.M~ethods The curative effect,surgical procedures and mortality data in 36 cases were retrospectively analyzed.ResUlts Compared with nonsurgieal treatment,early surgical treatment was associated with a significantly lower incidence of mortality,and with a highter cure rate (9.52% vs 33.33% ,P ＜ 0.05).Conclusion For traumatic severe acute pancreatitis,early operative management should be selected routinely as the first choice of treatment.

Objective To construct small RNAi plasmid vectors which can suppress the expression of TITIN in Wistar rat. Methods A recombinant plasmid vector involving shRNA, which matched the base pair of rat TITIN N2B region mRNA perfectly, was constructed and transfected into normal neonatal cardiomyocytes and mesenchymal stem cells (MSCs) induced by 5-aza cytidine respectively. The expression of TITIN Z band was investigated by immunofluorescence. Results The expression of TITIN was weakened after recombinant plasmid was transfected into neonatal cardiomyocytes and MSCs induced by 5-aza cytidine. Conclusion The recombinant plasmid was constructed successfully, and it actually can block the expression of TITIN.

OBJECTIVE:To establish the quality criteria of fever and cough syrup for children.METHODS:Thin-layer chromatography(TLC) was employed to make qualitative determination of herbba ephedrae,radix scutellariae,radix glycyrrhi-zae in fever and cough syrup for children,and high performance liquid chromatography(HPLC) was used to determine the con-tent of amygdaloside in its chief medicinal material,almond.RESULTS:The spots in the TLC of herbba ephedrae,radix scute-llariae,radix glycyrrhizae were in the same color with those in the chromatograms of control articles.The linear range of amygdaloside was 0.198?g～4.954?g(r=1.0 000).CONCLUSION:The present method is simple,accurate sensitiveness and highly reproductive,which can be used for the quality control of this preparation.

AIM: To study rhIL-1? effects on fetal islet function and IL-6 production in vitro METHODS: Islets from fetal pancreas was separated by collagenase type V (0 5 mg/mL) and cultured in vitro The islets were exposed to culture medium alone for 48 h or with different concentration of rhIL-1? The supernatants of culture of human fetal islets were assayed for IL-6, insulin and glucagon RESULTS:(1) IL-6 activity was increased 4 0 folds (74-294 mU/islet) when islets were exposed to rhIL-1?(20U/mL); (2) IL-6 McAb significantly reduced IL-6 activity in islet supernatants from control group or islet exposed to rhIL-1? treated group; (3)IL-6 mRNA in human fetal islet exposed to rhIL-1? is higher than control in dot hybridization; (4) Soluble insulin and cellular insulin within islet released to supernatants was slightly decreased (0 48～0 78 IU/islet and 0 65～0 79 IU/islet); (5) Glucagon secretion was significantly increased 3 2 folds (1 0～3 2 pg/islet) CONCLUSION: Pancreatic islets produce IL-6 is up-regulated by rhIL-1? On the other hand, Il-6 produced by the islet may act as a costimulator for autoreactive B and T lymphocytes in autoimmune diabetes

0.05) ,and the effect of 36 hours storage of rat livers with modified UW solution was better than with normal UW solution(P

Objective: To study the effects of antisense epidermal growth factor receptor (EGFR) cDNA transfection on telomerase activity and telomere length of glioblastomas U87MG cells and the mechanism. Methods: Glioblastoma U87MG cells, which over-expressed EGFR, were transfected with antisense-EGFR cDNA constructs. Several clones stably expressing lower or undetectable levels of EGFR protein were obtained. The effect of antisense-EGFR cDNA on telomerase activity was assessed by Telomeric Repeat Amplification Protocol (TRAP) assay. The effect of antisense- EGFR cDNA on telomere length was determined by Southern blot hybridization. The mRNA expressions of hTERT, hTEP1 and c-myc were analyzed by semi-quantitative PCR. Results: U87MG cells that were transfected with antisense-EGFR cDNA expressed lower level of EGFR and were less responsive to the growth stimulation of EGF compared with the control cells. Telomerase activity was significantly decreased in the antisense-EGFR clones. Telomere length was shortened. The mRNA expression of hTERT was slightly decreased in the antisense-EGFR clones, whereas the expressions of hTEP1 and c-myc were not altered. Conclusion: Antisense-EGFR cDNA transfection can sufficiently inhibit EGFR signal transduction pathway, decrease telomerase activity and shorten telomere length, which may be a new mechanism of antisense-EGFR approach in tumor suppression. The down-regulation of hTERT mRNA may contribute to the decreased telomerase activity in the antisense-EGFR clones.

Objective To establish an HPLC method for the content determination of gallic acid and kaempferol-3-O-rutinoside inNymphaea candida Presl..MethodsThe separation was carried out on a Wondasil C18 column (250 mm×4.6 mm, 5μm). The mobile phase was methanol-0.1% acetic acid solution, with gradient elution;the flow rate was 1.0 mL/min;the detection wavelength was set at 270 nm;the column temperature was 30℃.Results The linear ranges of gallic acid and kaempferol-3-O-rutinoside were 0.065-0.585μg (r=0.999 1), 0.133-1.197μg (r=0.999 5), respectively. The average recoveries of gallic acid and kaempferol-3-O-rutinoside were 102.71%, 102.08%, with RSD of 1.97%, 0.46%, respectively.Conclusion This method was rapid, accurate, and reliable. It can be used for the determination of allic acid and kaempferol-3-O-rutinoside in Nymphaea candidaPresl..

ObjectiveTo observe and detect the change of invasion and migration about CNE cell line after 5-ALA Photodynamic therapy.MethodsThe relation between the inhibition rate and 5-ALA concentration & energy density of lasers was detected by MTT.Scratch wound assay and matrigel artificial basement membrane invasion assay were perforned after photodynamic therapy with different photosensitizer concentration and energy density of lasers.ResultsThe results showed that photodynamic therapy can inhibit the growth of CNE cells.The migration of CNE cell was inhibited with appropriate photosensitizer concentration and energy density of laser after photodynamic therapy.It exhibited a linear relation between cell migration and the energy density, when the photosensitizer concentration was a maximum effective concentration of 1 mmol/L (P ＜0.05). The invasion of CNE cell was also inhibited after photodynamic therapy,there is a relationship between the change of invasion and 5-ALA concentration & energy density of lasers.It which exhibited a linear relation between cell invasion and the energy density in the same photosensitizer concentration (r ＞0.8, P ＜0.0001). ConclusionThe migration and invasion of CNE cells are both inhibited after photodynamic therapy. The change of migration and invasion is related to 5-ALA concentration & energy density of laser.

This paper makes a tentative exploration in the feature and responsibility of blood-bank,ethical significance embodied in the without-payment blood donation system,and the three particular ethics-based practices in Beijing Red Cross Blood-bank including "Street Corner Donation Volunteers","Involvement of Competent Blood-bank Staff in the Blood Donation",and "Community of Rare Blood Types",thus providing an account of the blood-bank culture construction from the perspectives of ideological construction,scientific development,humanistic service,and connotation construction,etc.