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Losartan inhibited expression of matrix metalloproteinases in rat atherosclerotic lesions and angiotensin Ⅱ-stimulated macrophages

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Acta Pharmacologica Sinica 2004年第11期 42-48页

作者： Chun LIANG, Zong-gui WU, Jian DING, Jian-fei JIANG, Gao-zhong HUANG, Rong-zeng DU, Jun-bo GEDepartment of Cardiology, Changzheng hospital, Second Military Medical University, shanghai 200003, china shanghai {4. of Materia Medica, Chinese Academy of Sciences, shanghai 201203, china shanghai {4. of cardiovascular Diseases, zhongshan hospital, Fudan University, shanghai 20003., china

AIM: To explore whether the angiotensin Ⅱ (Ang Ⅱ) receptor 1 (AT1) antagonist, losartan could reduce activity and expression of matrix metalloproteinases (MMPs) in rat atherosclerotic plaques. METHODS: Male Wistar-Kyoto rats were ip injected a single dose of vitamin D3 600 kU·kg-1·month-1 and fed an atherogenic diet for 4.months to induce experimental atheroma. Then either placebo or losartan 50 mg·kg-1·d-1 was administered in rats for another 2 months. In vitro, the effect of losartan 0.1-10μmol/L on the expression of MMP-2 and MMP-9 was investigated in Ang II-stimulated rat peritoneal macrophages. The expression and activity of MMP-2 and MMP-9 were monitored by Western blot, RT-PCR, and SDS-PAGE zymography analysis. RESULTS: High levels of MMP-2 and MMP-9 were expressed in rat atherosclerotic lesions. Losartan significantly reduced the activity and expression of MMP-2 and MMP-9 compared with the placebo group (MMP-2, 5861±539 vs 8991±965, P4.23±24.2, P<0.01). In

关键词： losartan metalloproteinases angiotensin Ⅱ atherosclerosis peritoneal macrophages reverse tran-scriptase polymerase chain reaction Western blotting

Pravastatin activates platelet nitric oxide synthase (NOS) in patients with type 2 diabetes mellitus and NOS activation is accompanied by serine phosphorylation

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中华医学杂志(英文版) 2005年第19期000卷 72-75页

作者： YAO Kang, XU Biao, Gao Ling and GE Jun-bo shanghai institute of cardiovascular Disease, zhongshan hospital, Fudan University,{4., china Department of cardiovascular Disease,Gulou hospital,Nanjing University,Nanjing210008,china shanghai institute of cardiovascular Disease Zhongshan Hospital Fudan University Shanghai 200032 China Department of cardiovascular Disease Gulou Hospital Nanjing University Nanjing 210008 China

Statins cause reductions in myocardial infarction and also morbidity and mortality of type 2 diabetes related to atheromatous disease and its thrombotic complications beyond those predicted by reductions in low density lipoprotein cholesterol (LDL).~ 1,2 It has been suggested that the protective mechanism(s) may relate to improved endothelial function and/or antithrombotic effects, but the mechanism is not clear.

关键词： platelet · HMG-CoA reductase inhibitors · type 2 diabetes mellitus · nitric oxide synthase

DYNAMIC ANALYSIS OF FLUID-STRUCTURE INTERACTION OF ENDOLYMPH AND CUPULA IN THE LATERAL SEMICIRCULAR CANAL OF INNER EAR

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Journal of Hydrodynamics 2011年第6期23卷 777-783页

作者： WU Cai-qin HUA Cheng YANG Lin DAI Pei-dong ZHANG Tian-yu WANG Ke-qiang Department of Mechanics and Engineering Science Fudan University Shanghai 200433 China Eye and ENT hospital of Fudan University Shanghai 200031 China cardiovascular Disease institute Zhongshan Hospital of Fudan University Shanghai 200032 China

The semicircular canals, composed of lateral, anterior and posterior canals in the inner ear, are the sensors of equilibrium during head rotation movements in the three-dimensional space. Semicircular canals are filled with endolymph confined by the cupula. The study of the relationship between endolymph flow and cupular deformation is important in revealing the semicircular canals biomechanical behavior. To date, there are few studies focusing on the transient endolymph flow and cupular deformation in response to a head rotation motion. The lateral semicircular canal is mainly responsible for the sense of the horizontal rotation movement. In order to figure out the intricate dynamics in the lateral semicircular canal during the head rotation motion, the time evolutions of both endolymph flow and cupular deformation are analyzed in this article by using a fully coupled fluid-structure interaction model. It is shown that the cupular deformation provides cues for understanding the physiology of sensing the head rotation.

关键词： fluid-structure interaction endolymph cupula finite element method

Chromosomal aberrations related to metastasis of human solid tumors

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World Journal of Gastroenterology 2002年第5期8卷 769-776页

作者： Lun-Xiu Qin Liver Cancer institute and zhongshan hospital,Fudan University,shanghai,china Liver Cancer institute zhongshan hospital Fudan University Shanghai China. lxqin@***

The central role of sequential accumulation of genetic alterations during the development of cancer has been firmly established since the pioneering cytogenetic studies successfully defined recurrent chromosome changes in spedfic types of tumor. In the course of carcinogenesis, cells experience several genetic alterations that are associated with the transition from a preneoplastic lesion to an invasive tumor and finally to the metastatic state. Tumor progression is characterized by stepwise accumulation of genetic *** does the dominant metastatic clone. Modern molecular genetic analyses have clarified that genomic changes accumulate during the development and progression of cancers. In comparison with the corresponding primary tumor,additional events of chromosomal aberrations (including gains or allelic losses) are frequently found in metastases, and the incidence of combined chromosomal alterations in the primary tumor, plus the occurrence of additional aberrations inthe distant metastases, correlated significantly with decreased postmetastatic survival. The deletions at 3p, 4., 6q, 8p, 10q,11p, 11q, 12p, 13q, 16q, 17p, 18q, 21q, and 22q, as well as the over-representations at 1q, 8q, 9q, 14. and 15q, have been found to associate preferentially with the metastatic phenotype of human cancers. Among of them, the deletions on chromosomes 8p, 17p, 11p and 13p seem to be more significant, and more detail fine regions of them, including 8p11, 8p21-12, 8p22, 8p23, 17p13.3, 11p15.5, and 13q12-13 have been suggested harboring metastasis-suppressor *** the past decade, several human chromosomes have been functionally tested through the use of microcell-mediated chromosome transfer (MMCT), and metastasis-suppressor activities have been reported on chromosomes 1, 6, 7, 8, 10,11, 12, 16, and 17. However, it is not actually known at what stage of the metastatic cascade these alterations have *** is still controversial with the association between

关键词：染色体变异实质肿瘤肿瘤转移综述

Sorafenib in treatment of patients with advanced hepatocellular carcinoma:a systematic review

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Hepatobiliary & Pancreatic Diseases International 2012年第5期11卷 458-466页

作者： Xin Zhang, Xin-Rong Yang, Xiao-Wu Huang, Wei-Min Wang, Ruo-Yu Shi, Yang Xu, Zheng Wang, Shuang-Jian Qiu, Jia Fan ,Jian Zhou Liver Cancer institute, zhongshan hospital, Fudan University, shanghai Key Laboratory for Organ Transplantation, shanghai 20003.,{4.,institute of Biomedical Sciences, Fudan University, shanghai 20003.,{4. [a] Liver Cancer institute Zhongshan Hospital Fudan University and Shanghai Key Laboratory for Organ Transplantation Shanghai 200032 Shanghai China [b] institute of Biomedical Sciences Fudan University Shanghai 200032 Shanghai China

BACKGROUND: Sorafenib has become the standard first-line treatment for patients with advanced hepatocellular carcinoma (HCC). This study aimed to assess the efficacy and safety of sorafenib in advanced HCC patients and explore its true value for specific subgroups. DATA SOURCES: A computer-based systematic search from January 2005 to June 2011 with 'sorafenib' and 'advanced hepatocellular carcinoma' as search terms was performed for possible clinical trials. Hazard ratios (HR) and their 95% confidence intervals (CI) for overall survival (OS) and time to progression (TTP), rates of partial response (PR), rates of toxicity effects, and details of subgroup analysis were extracted. Meta-analyses were done using the software Review Manager (version 5.0). RESULTS: Six trials with 1164.patients were included. Based on three randomized controlled trials, the pooled HR (sorafenib/ placebo) was 0.66 for OS (95% CI: 0.56-0.78; P4.-0.68; P4. P=0.0002) and 0.64.for TTP (95% CI: 0.52-0.78; P4.hand-foot skin reaction, diarrhea, fatigue, and rash/***: Sorafenib-based therapy benefits advanced HCC patients. Meanwhile, sorafenib is less effective for patients with extrahepatic spread, with normal AFP level and with elevated level of bilirubin.

关键词： advanced hepatocellular carcinoma sorafenib systematic review

Role of real-time three-dimensional transesophageal echocardiography in mitral valve repair

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Journal of Geriatric Cardiology 2008年第3期5卷 137-141页

作者： Cuizhen Pan~1 Xianhong Shu~1 Qiling Cao~2 Chunsheng Wang~1 Wenjun Ding~1 Haozhu Chen~1 1 Department of Echocardiography, zhongshan hospital, Fudan University, shanghai institute of cardiovascular Diseases,{4., china, 2 Rush University Medical Center, Chicago, USA Department of Echocardiography Fudan University Shanghai Institute of Cardiovascular Diseases Shanghai 200032 China Rush University Medical Center Chicago IL United States

Background and objective Pre-operative assessment of mitral valve (MV) anatomy is essential to surgical design in patients undergoing MV *** 2-dimensional (2D) echocardiography provides precise information regarding MV anatomy,RT-3D TEE could increase the understanding of MV apparatus and individual scallop *** aimed to investigate the value of RT- 3DTEE in MV *** RT-3DTEE was performed in six patients with mitral valve prolapse (MVP) by using Philips 1E33 with X7-2t *** RT-3DTEE studies were compared with surgical findings in patients undergoing surgical mitral valve repair,and quantitative evaluation was performed by QLab 6.0 software before and after surgical mitral valve *** RT- 3DTEE could display dynamic morphology of MV,the location of prolapse,and spatial relation to the surrounding *** could provide surgical views of the valves and the valvular *** results were consistent with surgical *** quantitative evaluation before and after surgical MV repair indicated that anterolateral to posteromedial diameter of annulus,anterior to posterior diameter of annulus,perimeter of annulus,and area of annulus in projection plane were significantly smaller after operation compared with those before operation (P<0.05).The length of posterior leaflet,the area of anterior and posterior leaflet,the maximal prolapse height,the volume of leaflet prolapse and the length of coaptation in projection plane were significantly reduced after operation (P<0. 05).Conclusion RT-3DTEE is a unique new modality for rapid and accurate evaluation ofmitral valve prolapse and mitral valve repair.

关键词： Echocardiography real-time transeophageal mitral valve repair

Electrophysiological actions of cyclosporin A and tacrolimus on rat hippocampal CA1 pyramidal neurons

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Acta Pharmacologica Sinica 2007年第12期28卷 1891-1897页

作者： Yong YU~2,Xue-qin CHEN~3,Yao-yuan CUI~(2,4.,Guo-yuan HU~(3,4.~2 Department of Neurosurgery,zhongshan hospital,Fudan University,shanghai 20003.,{4. ~3 State Key Laboratory of Drug Research,shanghai institute of Materia Medica,Chinese Academy of Sciences,shanghai 201203,{4. Department of Neurosurgery Zhongshan HospitalFudan UniversityShanghai 200032China State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China

Aim:The aim of the present study was to investigate the electrophysiologicalactions of cyclosporin A （CsA） and tacrolimus （FK506） on neurons in the brain,and to elucidate the relevant ***:Whole-cell current-clamprecording was made in CA1 pyramidal neurons in rat hippocampal slices;whole-cell voltage-clamp recording was made in dissociated hippocampal CA1 pyrami-dal neurons of ***:CsA （100 μmol/L） and FK506 （50 μmol/L） did notsignificantly alter the passive electrical properties of hippocampal CA 1 pyramidalneurons,but slowed down the repolarizing phase of the action ***（10-100 μmol/L） selectively inhibited the delayed rectifier K+current （IK） in aconcentration-dependent *** did not affect the kinetic properties of *** dialysis of CsA （100 μmol/L） had no effect on *** inhibition of IKby CsA （100 μmol/L） persisted under the low Ca2+conditions that blocked thebasal activity of ***:CsA exerted calcineurin-independentinhibition on the IKin rat hippocampal pyramidal *** together withour previous finding with FK506,it is conceivable that the spike broadening causedby the immunosuppressant drugs is due to direct inhibition on the IK.

关键词： action potential calcineurin cyclosporin A delayed rectifier K~+ channel hippocampus tacrolimus

Changes in left ventricular ejection fraction and coronary flow reserve after coronary microembolization

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Changes in left ventricular ejection fraction and coronary f...

The anabolic effects of recombinant human growth hormone and glutamine on parenterally fed,short bowel rats

第十三次全国心血管病学术会议

作者： MA Jian-ying,QIAN Ju-ying,GE Jun-bo shanghai institute of cardiovascular Diseases,zhongshan {4., Fudan University,shanghai 20003.,china

Objective Although coronary microembolization(CME) is a frequent phenomenon in patients undergoing percutaneous coronary intervention,few data are available on the changes in left ventricular ejection fraction(LVEF) and coronary flow reserve(CFR) after coronary microembolization(CME).Methods In this study,six mini swines of either sex(body weight

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世界胃肠病学杂志：英文版 2002年第4期8卷 752-757页

作者： Yan Gu Zhao-Han Wu Department of General Surgery,zhongshan hospital,Fudan University,shanghai 20003.,{4. Department of General Surgery Shanghai Ninth People's Hospital Shanghai Second Medical University Shanghai 200011 China. gu-yan@***

AIM: To evaluate the metabolic effects associated withadministration of rhGH and/or Gln in parenterally fed,short-bowel ***: Forty SD rats subjected to 75 % intestinalresection and maintained with parenteral nutritionwere randomly divided into 4.groups as follows: -rhGH,-Gln; -rhGH, +Gln; +rhGH, -Gln; +rhGH, +*** and nitrogen balance were evaluated daily. After6 days of PN, rats were killed, various organs weredissected and weighted, the carcasses were used foranalysis of body composition. Serum GH and IGF-1 weredetermined by RIA ***: Weight loss in rats with rhGH (17.4.12.8 g)and rhGH+Gln (23.8±3.5 g) was significantly less thanrats with PN alone (29.6±6. 9 g) and rats with Gln-supplemented PN (31.85±12.8 g), P＜0.05. Theaccumulated NB in rats with rhGH (1252.9±294.3 mgN/d) and rhGH+Gin (1261.7±85.5 mg N/d) wassignificantly greater than those with PN alone (704.8±379.0 mg N/d) and with Gln-supplemented PN(856.7±284.4.mg N/d), P＜0.05. The absolute weightof gastrocnemius muscle in rats with rhGH (2683.9±34..6 mg) and rhGH+Gln (2579.1±359.5 mg) wasgreater than those with PN alone (2176.3±167.1 mg)and with Gln-supplemented PN (214..9±353.6 mg).Although the absolute weight of remnant smallintestine itself was not significantly different in 4.xperimental groups, the weight/length of thesegments was greater in rats with rhGH and/or Gln(4..7±5.5, 52.7±4.1 and 67.4.5.3 respectively) thanthose with PN alone(4..8±5.0), there were synergisticeffects between rhGH and Gln in improvement of theweight/length of remnant small intestine, P＜*** of body carcass composition showed that ahigher percentage of carcass weight as protein and alower percentage of carcass weight as fat wereoccurred in rats with rhGH (20.8±4.0,6.0±2.6) andrhGH+Gin(21.3±2.4.4.4.1.5) than those with PNalone (16.4.2.4.9.2+3.7) and with Gln-supplementedPN (17.8±3.0,6.3±2.0), rhGH had significant effectson alteration of body composition, P＜0.05. Serum GHand IGF-1 concentratio

关键词：重组人生长激素谷氨酸胃肠外营养短肠鼠体重