Endoscopic drainage was practised in 23 patients with acute or chronic pancreatitis. Among them 13 cases with acute pancreatits (AP) including 5 serious ones were treated with endoscopic sphincterotomy (EST) and naso biliary drainage (ENBD).Following successful drainage ( n =11) all the patients were cured with an average of 10 4 days (5-18 days). Among 11 patients with chronic pancreatitis, there were 7 cases treated by endoscopic pancreatic sphinterotomy (EPS), 2 cases by extraction of pancreatic duct stones with balloon, 5 cases by dilatation of pancreatic duct with bougienage, 6 cases by endoscopic naso pancreatic drainage(ENPD), and 7 cases by pancreatic duct drainage(PDE). After the operation, abdominal pain was eliminated in 5/7 cases. Pancreatic duct stones were extracted out in 2 patients and pancreatic cyst disappeared in 4 patients. It is concluded that endoscopic drainage is safe and useful in management of acute or chronic pancreatitis.

Objective To observe the effects of differentiation of mature islet cells of mice on marrowmesenchymal stem cells (mMSCs). To provide transplant source for islet cell transplantation in the treatment of diabetes. Methods The culture, isolation and passage of mMSCs was performed by using patch wall, cell shape was observed by confocal microscope, and flow cytometry analysis was used to determine their biological characteristics. The type Ⅳ collagenase was injected into common bile duct to digest the pancreas, and then gradient centrifugation was used to isolate islet cells. The transwell co-culture system was used for third generation of mMSCs and isolated islet cells, then inversion microscope was used to observe the cell growth and morphological changes, immunochemistry methods was applied to detect the expression of insulin in mMSCs, and insulin release test was performed to determine the secretion of insulin. The control group consisted of cultured mMSCs alone. Results The cells from mouse bone marrow were found to be in long spindle shape with large volume after 48 hours in culture. One week later the cells grew in the form of colony with serial subcultivation. The cell surface molecules including Sca-l, CD29, CD44, CD105 were positive with high level of expression;while the cell surface molecules including CD34, CD45 were negative, all of these results confirmed that the ceils were mMSCs. After 7 days of coculture with mice islet cells, part of mMSCs cells were positively stained by insulin immunohistochemisty, the insulin secretion was (16.83±0. 15)μIU/ml.Conclusions After cocultured with islet cells, mMSCs isolated from mouse bone marrow could differentiate into islet like cells. These cells may be used in the islet cells transplantation in the treatment of diabetes, which provided a solution to the problems of donor-shortage and immunologic rejection.

Objective To observe the therapeutic effect between less invasive stabilization system (LISS) plate and anatomical plate internal fixation for the treatment of tibial plateau fractures. Methods The clinical data of 58 patients with tibial plateau fractures were retrospectively analyzed. The patients were divided into LISS plate group and anatomical plate group according to the internal fixation method with 29 cases each. The operative time, blood loss, incision length, fracture healing time, postoperative weight-bearing time, postoperative complications and therapeutic effect (according to Rasmussen knee joint function score scale) were compared between 2 groups. Results The operative time, incision length, blood loss and incidence of postoperative complications in LISS plate group were significantly lower than those in anatomical plate group:(68.5 ± 7.1) min vs. (92.3 ± 9.4) min, (5.8 ± 1.4) cm vs. (8.6 ± 2.1) cm, (208.5 ± 27.8) ml vs. (329.7 ± 25.2) ml and 17.2%(5/29) vs. 41.4%(12/29), and the excellent rate was significantly higher than that in anatomical plate group: 86.2% 25/29) vs. 62.1%(18/29), and there were statistical differences (P<0.05);there were no statistical differences in fracture healing time and postoperative weight-bearing time between 2 groups (P>0.05). Conclusions Both of LISS plate and anatomical plate internal fixation for the treatment of tibial plateau fractures have good clinical efficacy, but the LISS plate has advantages of shorter operation time, less tissue trauma, less blood loss, quicker fracture healing and less postoperative adverse reaction.

Objective To evaluate effect of Xugu-Huoxue decoction on the treatment of patients with femoral neck fracture after internal fixation with hollow screw fixation. Methods A total of 120 patients with femoral neck fracture were randomly divided into the treatment group and the control group according to the inclusion criteria, 60 patients in each group. The control group was treated with cannulated screw internal fixation; the observation group was treated with Xugu-Huoxue decoction at the second day after the operation. Both groups were assessed with the Harris hip function score at the end of 12 months after operation. The SF-36 scale was used to evaluate the quality of life of the patients. Results The total effect rate of the observation group was 88.3% (53/60) and the control group was 71.7% (43/60). The difference between the 2 groups was statistically significant (χ2=5.208, P=0.022). At 12 months after surgery, the pain (41.4 ± 7.3 vs. 32.2 ± 5.7, t=7.738), the joint function (45.7 ± 6.2 vs. 36.3 ± 7.2, t=7.701), joint mobility (5.0 ± 0.8 vs. 3.1 ± 0.8, t=13.115), and the total score of Harris (87.7 ± 4.6 vs. 65.4 ± 5.4, t=24.461) in the observation group were significantly higher than those in the control group (P<0.001). The physical function (83.1 ± 7.2 vs. 78.8 ±14.2, t=2.095), body pain (82.1 ± 9.9 vs. 67.7 ± 11.1, t=7.524), the overall health (76.6 ± 10.3 vs. 68.8 ± 14.4, t=3.401) and activity (81.1 ± 7.9 vs. 76.6 ± 11.2, t=2.549) in the observation group were higher than those in the control group (P<0.05 or P<0.01). Conclusions The Xugu-Huoxue decoction could improve the prognosis of patients with femoral neck fractures after cannulated screw fixation, promote the recovery of hip function and improve the quality of life.

Objective:To construct a retroviral vector carrying both enhanced green fluorescent protein(EGFP) and human insulin gene for transfecting the bone marrow mesenchymal stem cells (BMSCs),and to observe the treatment effect of transfected BMSCs after transplanted into diabetes mice.Methods:Two gene segments of insulin-IRES-EGFP and IRES-EGFP were obtained by overlap extension PCR technology,and then the 2 segments were cloned into retroviral vector (pMSCV).The vectors were used to transfect BMSCs after packaged with PT67 cells.The expression of EGFP was observed by inverted fluorescence microscope and the expression of insulin gene was examined by RT-PCR in the infected BMSCs.The transfected BMSCs with 2 viruses were transplanted into diabetic mice separately.The blood glucose levels and body weights of mice were examined in 2 groups,and the results were compared with those of normal control group.Results:The recombinant retroviral vectors pMSCV-insulin-IRES-EGFP and pMSCV-IRES-EGFP were successfully constructed.The BMSCs infected by both vector stably gave out green fluorescence under microscope; the cells infected with pMSCV-insulin-IRES-EGFP also stably expressed human insulin gene.The blood glucose level of the mice transplanted with BMSCs transfected with pMSCV-insulin-IRES-EGFP was significantly lower than that transplanted with BMSCs transfected with pMSCV-IRES-EFGP (P

Objective To detect COX-2 expressions in primary tumor and axillary lymph node tissues of breast cancer,and to study the relationship between COX-2 expression in breast cancer and lymph node metastasis.Methods The expressions of COX-2 in 9 normal breast tissues,50 primary breast cancer tissues,19 positive axillary lymph nodes and 31 negative axillary lymph nodes were detected with immunohistochemistry S-P method.Results COX-2 staining was granular and localized to the cytoplasm of tumor cells.In normal breast tissues,COX-2 staining was granular and localized to mesenchymocyte.In negative lymph nodes,COX-2 staining was granular and localized to macrophagus cytoplasm.The positive expression rates of COX-2 in normal breast tissues,primary breast cancer tissues,positive axillary lymph nodes and negative axillary lymph nodes were 11.1%,60.0%,84.2%,and 32.3%,respectively.There were significant differences of COX-2 positive expression rates between normal breast tissues,primary breast cancer tissues and positive axillary lymph nodes(P

Objective To study the distribution and expression of Semaphorins-3A protein in brain of postnatal rats.Methods Semaphorins-3A positive cells were observed by immunohistochemistry in the cerebral cortex,hippocampus,dentate gyms and entorhinal cortex in postnatal 0d,7d,14d,21 d and 28d of Sprague Dawley rats.Results Semaphorins-3A positive cells widely distributed in the granule cell layer ( Ⅱ ),external pyramidal cell layer ( Ⅲ ),internal granular cell layer ( Ⅳ ),pyramidal cell layer ( Ⅴ ) and layer of polymorphous cells ( Ⅵ ),in addition to the molecular layer ( Ⅰ ) of the parietal,occipital,frontal,temporal,insular,cingulate cortex,piriform cortex and entorhinal cortex with postnatal 0d,7d,14d,21d and 28d rats.The amount of semaphorins-3A positive cells(IOD) in the entorhinal cortex was 84916.23 ± 3266.34 in P0d,77711.41 ± 2634.26 in P7d,74124.25 ± 3989.09 in P14d,65887.63 ± 3406.57 in P21d and 57705.96 ± 3136.35 in P28d,meanwhile the region of semaphorins-3A positive cells narrowed in the part level with Ⅱ -Ⅵ levels of cortex.Similarly semaphorins-3A positive cells distributed mainly in granule cell layer of dentate gyrus,CA1,CA3 region and only a few of semaphorins-3A positive cells scattered in the multi-line layer in hippocampus.The expression level of semaphorins-3Awas significant difference among postnatal 0d,7d,14d,21d and 28d rats (P＜0.01).Conclusion Semaphorins-3A positive cells widely distribute in the various cortex and hippocampus in developing rat brain,and the region of semaphorins-3A is reduced with age growth of rats.

ObjectiveTo observe Semaphorins-3A and synaptophysin P38 expression in hippocampus of developing rat induced by status epilepticus.Methods 320 SD rats were divided into four groups (P7,P14,P21 and P28) according to day -old after birth (7d,14d,21d and 28d).Rats in each group were randomly divided into model group (SE group) and saline control group (NS group).SE was induced by Pentylenetetrazol (PTZ).Semaphorins-3A and synaptophysin P38 expression were determined by immunohistochemical staining on 1d,7d,14d,21d and 28d after SE in hippocampal CA1 of rats.ResultsSemaphorins-3A-positive cells could be seen in the hippocampal granule cell layer in all rats.Semaphorins-3A expression tended to decrease with the increasing of day-age,especially in P7 group(91 552.68 ± 4664.69 ).No matter how day-age,Semaphorins-3A expression was similar to that in NS group and was obvious reduced in 7d after SE(56 938.84 ± 5688.47 ).Meanwhile P38 expression in P7-day-age rats had had been gradually increasing between 1 day and 14d (5413.18 ±48.77,6223.40±29.19,6902.94 ±78.51 ) and then stabilized gradually on 21d(7523.42 ± 62.94) after rats were tested.P38 expression in other day-age rat was relatively stable on the same level in physiological state.On the other hand P38 expression in the hippocampal CA1 region of P7,P14,P21 and P28 rats was significantly higher than that in normal rats between 1day and 28day after SE episode(P＜ 0.05 ),and reached a peak on 14 day(8408.35 ± 55.73 ).ConclusionSemaphorins-3A and synaptophysin P38 involved in hippocampal synaptic plasticity of rat in developing stage and epilepsy.

Objective To observe neural stem cells proliferation,migration and differentiation in hippocampus in developing rats with status epileptictus.Methods 320 healthy SD rats at age 7,14,21,28 d (P7,P14,P21,P28) were randomly divided into status epilepticus (SE) and normal control group.In each group those rats at the same age were further randomly divided into 1,7,14,21,28 d five time points after PTZ-induced SE (n =8).New cell proliferation and migration were observed by immunohistochemistry studies in the dentate gyms.Double labeling with Brdu/NeuN and Brdu/GFAP was performed in the P14 rats.Results Nestin positive cells appeared in the dentate gyms on 1 d after SE in P7,P14,P21,P28 rats.The number of nestin positive cells gradually increased on 7 d and reached a peak on 14 d,then gradually reduced on 21 d,finally fell to a minimum on 28 d after SE.The numbers of nestin positive cells on 7 d(177.00 ± 3.22,t =16.033) and 14 d (195.00 ± 3.41,t =28.840) were significantly higher in the SE group than the NS group (147.50 ± 2.08,136.50 ± 2.65,both P ＜ 0.05).The smaller age of rats with SE onset,the greater the nestin intensity.But the number of nestin positive cells in the dentate gyrus of normal rats were gradually decreased with increasing age.Nestin positive cells were distributed in subgranular zone of dentate gyrus on 1 d and 7 d after SE,then gradually migrated to the granule cell layer on 14 d with morphological changes.Small part of nestin positive cells were ectopically migrated to the hilus of dentate gyrus in P14,P21,P28 age rats,and were also seen in the CA1,CA3 of hippocampus and cortex with various cell morphology.For differentiation of newly generated cells,most of Brdu positive cells coexpressed NeuN and about 4％-5％ cells co-expressed GFAP.Conclusions SE could induce neurogenesis in the hippocampal dentate gyrus area in developing rats which has age-related characteristics.Most new cells migrate from the subgranular zone to the granule cell layer of the dentate gyrus,and a small number of newly generated cells ectopically migrated to the hilus of dentate.The majority of newly generated cells differentiate into neurons,and the others differentiate into glial.

Objective To analyze the efficacy of early management of eomplications in patients with multi-ple traumas by applying the damage control theory. Method All total of 116 patients admitted to Wuhan Tongji Hospital between Jan 2006 and Jan 2008 were included in this retrospective study and were classified according to treatment method. Overall, 55 cases underwent damage control operations and 61 cases underwent conventional management. The groups of patients were compared in terms of parameters such as length of operation time, time to resuscitate from shock, lethal triad of death (LTD), complications and treatment outcomes after operation. Results The length of operation time was (67.43±19.52) min, resuscitation time from shock was (6.77±3.16) h and LTD was (11.54±4.10) h in the damage control group, and (163.95±55.41) min, (22.51±11.65) h and (34.55±5.63) h, respectively, in the conventional group, with significant differences between the two groups (P< 0.01). The per capita complication and mortality rates were 227.27 % and 3.64 %, respectively, in the dam-age control group and 363.93 % and 9.84%, respectively, in the conventional group (P <0.05). Couclusions Here, we demonstrated that early management of patients with multiple traumas undergoing operations by apply-ing the damage control theory significantly decreased the operation time, and decreased time to resuscitation from shock and LTD. Furthermore, this approach significantly reduced the incidence of comphcations and the mortality rate of patients with severe multiple traumas.