1.Study on expression and relationship between MMP-9 and EGFR in NSCLC
Journal of Medical Postgraduates 2003;0(10):-
Objective:To evaluate the relationship and prognostic significance of matrix metalloproteinase-9(MMP-9)、epidermal growth factor receptor(EGFR) in patients with non- small cell lung cancer(NSCLC). Methods:Immunohistochemical method (S-P) was used to detect the expression of the MMP-9、EGFR in 62 NSCLC tissues and 18 normal lung tissues. Results:The positive expression rates of MMP-9 and EGFR were 67.7%,58.1% respectively in the 62 NSCLC.Their expression levels were significantly higher than those in 18 para-cancerous normal lung tissues(P
3.Carcinosarcoma of common bile duct: report of a case.
Chinese Journal of Pathology 2006;35(3):192-192
5.Experimental study of three kinds of intravenous stents with different materials and different types
Chinese Journal of Radiology 2001;0(03):-
Objective To select a kind of stent with better property and spread its clinical application. Methods Three kinds of stents including “Z” type stainless steel stent(SSS), mesh Ni Ti alloy stent(AS), and gild stent(GS) were placed into dogs′ vena cava. Angiography was performed 2 weeks, 4 weeks, 8 weeks, 6 months, and 9 months after stent placements (according to the grouping time), then the animals were sacrificed to get the veins with stents for histopathology examinations (including macro pathology, microscope and scanning electron microscope). Data of displacement rate, expand rate, patency rate of stents, patency rate of tributary veins, endothelial thickness, and course of endothelialization were acquired to indicate stent application property. Measurement data were analyzed by analysis of variance and q test. Enumeration data were analyzed by ? 2 test. Ranked data were analyzed by Ridit analysis. Results The displacement rates of SSS, AS, and GS were 13 3%, 13 3%, and 7 7%, respectively(? 2=0 281, P =0 869); The incomplete expanding rates of SSS, AS, and GS were 6 7%, 46 7%, and 0.0% respectively. There was statistical difference(? 2=12 194, P 0 05); The patency rates of SSS, AS, and GS were 93 3%, 66 7%, and 84 6%, respectively. There was no statistical difference among the rates(? 2 =3 649, P =0 161). Endothelialization reached about 100% 4 weeks after the stents placements. Desquamating of GS plating layer was found 4 weeks after stent placement, surface erosion of SSS wire and AS wire was not found in 9 months. Conclusion Z type stainless steel stent has better anticoagulative capability, anticorrosive capability, and biocompatibility, and it is now an ideal intravenous stent.
7.Research progress on lung injury mechanism of adenovirus pneumonia in children
Xuehua XU ; Diyuan YANG ; Gen LU
Chinese Journal of Applied Clinical Pediatrics 2021;36(4):308-310
Human adenovirus is a DNA virus and a common pathogen of respiratory tract infection in children of China.Adenovirus can trigger a variety of mechanisms, thereby dissolving and killing lung cells.Consequently, it leads to such acute lung injury as acute respiratory distress and lung consolidation, and such pulmonary sequelae as bronchiolitis obliterates, unilateral transparent lung, bronchiectasis, and interstitial fibrosis.In this article, the mechanism underlying children lung injury caused by adenovirus was reviewed.
8.Effect of cellular activation of ultra low temperature preserved limbal epithelial cells of rabbit cultured in vitro
Yong-Gen XU ; Yong-Sheng XU ; Wei WANG ;
Ophthalmology in China 1994;0(02):-
0.05).The morphological characteristics were similar and positive on HE staining and AE5 immunohistochemical staining.PAS staining were negative in two groups.Conclusion The cellu- lar biological activations of limbal epithelial cells are decreased in the ultra low temperature preservation condition,but the affect are limit and can't change the property of corneal limbal epithelial cells and application for ocular surface reconstruction.(Ophthalmol CHN,2008,17:108-112)
9.Improved Heterotopic Heart Transplantation in Rats
Zhiyun XU ; Baoren ZHANG ; Jialin ZU ; Zhenjiang GEN
Academic Journal of Second Military Medical University 1982;0(02):-
The authors adopted the model of rat heart heterotopic transplantation established by Ono who anastomosed the donor ascending aorta and pulmonary artery to the recipient abdominal aorta and inferior vena cava respectively, and sonie improvemenLs on this model were made in this experimenL The time of procedure and the ischemic time of the donor heart were shortened, and the protection of the donor heart was satisfactory. The successful rate of 52 formal transplantations was 88%. The main reason of surgical failure is bleeding from the anastomosis. To lessen the intraoperative bleeding is a key factor to make the procedure successful. The method of the improved experimental model and the expenence are described in details.
10.Significance of Expression of Serum Soluble Vascular Cell Adhesion Molecular and Soluble Intercellular Molecule-1 in Children with Henoch-Schoenlein Purpura
yong, GU ; guo-cheng, XU ; shuang-gen, MAO
Journal of Applied Clinical Pediatrics 2006;0(21):-
Objective To detect the levels of plasma soluble vascular cell adhesion molecular(sVCAM-1) and soluble intercellular mo-lecule-1(sICAM-1) in children with Henoch-Schoenlein purpura(HSP) and its clinical significance.Methods The plasma levels of sVCAM-1 and sICAM-1 were measured by enzyme-linked immunosorbent assay(ELISA) in 53 children with HSP(37 cases in acute stage and 16 cases in recovery stage)and in 25 healthy subjects respectively,and the change that in acute stage and recovery stage was analyzed,at the same time,the 2 factors in children with renal injury and without injury were analyzed.Results The serum levels of sVCAM-1 and sICAM-1 in acute stage HSP children were significantly higher than those in recovery stage and normal controls(Pa