3.Effect of Epidermal Growth Factor and Glutamine-Supplemented Toal Parenteral Nutrition on Gut Barrier and Bacterial Translocation
Guowei XIA ; Haian SHI ; Yakui ZHOU
Fudan University Journal of Medical Sciences 2000;27(6):443-445
Purpose To detect the prevention of EGF and GLN on the side effect of TPN. Methods We randomized SD rats into four groups:group A (control),B(STPN),C(TPN+GLN),D(TPN+GLN+EGF).All rats were maintained on their respective diets for 8 days,at which time they were killed and the proximal jejunum was incised for biopsy,the MLN and celiac vein blood were collected for bacterial culture(aerobic culture). Results Group B rat mucosal cell atrophied,DNA and RNA content and plasma cell decreased,the positive rat of MLN bacterial culture was 62.5%.Atrophy in group C alleviated and bacterial translocation rate declined(37.5%).Group D was similar with group A. Conclusions GLN combined with EGF is more effective in protecting gut barrier function and preventing bacterial translocation than GLN alone.
4.Discussion about application of multimedia computer assisted instruction for foreign students in surgery teaching by the methods of CBL
Guowei ZHANG ; Jin JIN ; Jie ZHOU
Chinese Journal of Medical Education Research 2011;10(8):1009-1010
By discussion the experience of surgery teaching for foreign students by the methods of CBL+MCAI, the successful teaching experience are the followings: making sufficient preparations before lesson according to the features and difficulties in the foreign students' surgery teaching; Emphasis on CBL teaching methods and rational application of multimedia computer assisted instruction,strengthening the teaching disciphne of foreign students and the cultivation of the spirit of students' active learning.These measures stimulated the enthusiasm of students' active learning and improved the quality of teaching.
5.An experimental study on the expression of apoptosis conducted by nuclear factor-?B in benign and malignant pancreatic diseases
Guowei ZHANG ; Jie ZHOU ; Caixian LIAO
Journal of Medical Postgraduates 2003;0(12):-
Objective:By measuring the expression of nuclear factor of ?B(NF-?B) and apoptosis in the tissue of benign and malignant pancreatic diseases.Methods:The expression of NF-?B factor was measured by immunohistochemical method to measure.The expression of apoptosis for cells was determined by TUNEL method.Results: When measuring the expression of NF-?B p65 protein in the tissue,we found firstly,in the tissue of pancreatic cancer,NF-?B p65 protein was located in the nucleolus and cytoplasm,the number of positive cell was obviously more than that in the control group(P
6.Application of PBL +LBL double-track for teaching of skill of animal surgery
Guowei ZHANG ; Jin JIN ; Jie ZHOU
Chinese Journal of Medical Education Research 2005;0(06):-
Accordingtothe analysis ofthe characters and difficulties ofskill ofanimal surgery,we divide the teaching process into three stages:theory classes,aseptic technique and basic operating techniques,animal practice.PBL+LBL double-track teaching methods is performed,which can make up the defect of PBL in practice and should be advocated and spread in the teaching of skill of animal surgery.
7.Gene diagnosis and clinical significance of micrometastases in lymph nodes, peri pheral blood and bone marrow in non-small-cell lung cancer patients
Zhongxi NIU ; Qinghua ZHOU ; Guowei CHE
China Oncology 2000;0(06):-
Purpose:To explore the clinical significance of gene diagnosis in detecting micrometastases in lymph node,peripheral blood and bone marrow from non-small-cell lung cancer patients and the correlation to e ach other. Methods:The MUC1 mRNA expression was detected in lymph nodes, p eripheral blood and bone marrow from 31 lung cancer putients and 10 benign p?lm onary lesion patients by nested RT-PCR. Results:The sensitivity of the the RT-PCR technique was 10 -6 in this study. The positive rates of MUC1 mRNA were 54.6%, 32.3% and 22.6% in lymph nodes , peripheral blood and bone marrow from lung cancer patients resp ectively , and highly correlation existed among the three groups(P
8.The value of flow cytometry for the differential diagnosis between refractory cytopenia with multiple dysplasia and aplastic anemia
Lifeng XUE ; Bo YANG ; Jue ZHOU ; Xiaoqin WANG ; Guowei UN
Chinese Journal of Internal Medicine 2010;49(6):508-511
Objective To evaluate the value of flow cytometry ( FCM) for the differential diagnosis between myelodysplasia (MDS) subtype refractory cytopenia with multiple dysplasia (RCMD) and aplastic anemia (AA). Methods The flow cytometric data of bone marrow samples from 168 cases of RCMD and 77 cases of AA were analyzed retrospectively in blind, and its results were compared with gold standard to evaluate its diagnosis values. Results The specificity of abnormal of single immunophenotype in the surface of granulocytes and myeloblasts was high (range 75.3% -100% ) , but the sensitivity was very low (range 5.4%-50% ). In parallel tests, the sensitivity and specificity of the combination of CD+34 cells≥1% , myeloblasts ≥3% , abnormal expression of CD117 in granulocytes and loss of CD13 in myeloblasts or increased intensity of CD33 in granulocytes were higher than other combinations. The sensitivity and specificity of above combination were more than 62% and 92% , respectively. In the scoring method,different score was given to 8 markers according to different diagnostic value, which were CD+34 cells ≥1 % ,myeloblasts≥3% , abnormal expression of CD117 in granulocytes, loss of CD13 in myeloblasts, increased intensity of CD33 in granulocytes, loss of CD13 in granulocytes, loss of CD10 in granulocytes, and decreased SSC in granulocytes. The sensitivity and specificity were both high if we defined that the total score ≥1.5 was RCMD and the score < 1. 5 was AA. Conclusions The value of abnormal of single immunophenotype for differential diagnosis between RCMD and AA is low. Parallel tests can increase the diagnostic sensitivity obviously and not decrease the specificity. CD+34 cells≥1% , myeloblasts≥3% and abnormal expression of CO117 in granulocytes were the most important markers. The scoring method is precise to distinguish RCMD from AA.
9.Factors associated with joint function after plate fixation of unstable pelvic fractures
Guowei HUANG ; Xiaojun YIN ; Zhengming ZHOU ; Zhijun TANG
Chinese Journal of Orthopaedic Trauma 2016;18(3):257-260
Objective To analyze the factors that influence joint function after plate fixation of unstable pelvic fractures.Methods A retrospective study was conducted to analyze the 109 patients with unstable pelvic fracture who had been treated with plate fixation from January 2007 to September 2014.They were 69 men and 40 women,23 to 72 years of age (average,46.3 years).By the Tile classification,15 cases were type B1,37 type B2,14 type B3,19 type C1,16 type C2,and 8 type C3.Their postoperative joint function was evaluated according to the Majeed criteria for functional evaluation.There were 86 cases in the good-to-excellent group (78.9%) and 23 in the fair-to-poor group (21.1%).Their data were analyzed in terms of gender,age,preoperative injury severity scale (ISS),body mass index (BMI),operation time,fracture type,reduction quality,postoperative complications,bone density,and postoperative weight bearing time.The influential factors were determined using Logistic regression analysis.Results All the 109 patients obtained a mean follow-up of 18.7 months (from 12 to 53 months).Preoperative ISS (P =0.000),fracture type (P =0.008),reduction quality (P =0.009) and postoperative complications (P =0.000) were identified as the factors influencing joint function after plate fixation of unstable pelvic fractures.Conclusion Preoperative assessment by ISS,a clear understanding of the pelvic fracture type,anatomical reduction of the fracture and efforts to reduce postoperative complications can effectively improve functional recovery of the joint after plate fixation of unstable pelvic fractures.
10.Expression of Bcl-2, Bcl-XL, Bax and Bak in Acute Leukemia Cells and Its Clinical Significance
Yusheng ZHU ; Yuan LU ; Bobin CHEN ; Guowei LIN ; Xinli ZHOU
Fudan University Journal of Medical Sciences 2001;28(2):113-115,118
PurposeTo explore the relationship between expression of apoptosis-modulating proteins and chemotherapeutic efficacy in acute leukemia. MethodsImmunocytochemical method was used to detect the expression of Bcl-2、Bcl-XL、Bax and Bak in 36 cases of acute leukemia including previously untreated/ drug-sensitive group and refractory/relapse group. ResultsThe average positive cell rates of Bcl-2 and Bcl-XL in refractory/relapse group were (41.68 ± 14.39) % and (35.96 ± 9.95 ) %, while the rates in previously untreated/drug-sensitive group were (15.64 ± 8.51 )% and (12.91 ± 8.63 )%. Statistical analysis showed the average positive cell rates of Bcl-2 and Bcl-XL in refractory/relapse group were higher than those in previously untreated/drug-sensitive group (P < 0.01 ). There was no significant difference in average positive cell rates of Bax and Bak between refractory/relapse group (25.28 ± 15.49) %, (15.53 ± 10.64) % and previously untreated/drug-sensitive group (21.55 ± 12.58)%, (13.23 ± 8.36)%. The Logistic regression of expression of Bd-2 、Bcl-XL、Bax and Bak to complete remission rate (CR) of 36 cases of acute leukemia showed that Bcl-XL was the most risk factor in reducing the CR.ConclusionsBcl-2 and Bcl-XL might play important roles in multi-drug resistance of acute leukemia and Bcl-XL was more important than Bcl-2.