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Science China(Life Sciences) 2004年第3期47卷 279-286页

作者： ZHANG wei feng Jiannan shen Beifen Beijing Basic Medical Institute Beijing 100850 China Beijing Basic Medical Institute Beijing 100850 China Beijing Basic Medical Institute Beijing 100850 China

The genes of the heavy and light chain variable region (VH, VL) of Z12 antibody against hTNF-a were cloned, and according to the translated sequence of amino acids, the spa-tial structures of VH and VL domains were modeled by using homology-based modeling method, followed by constructing the whole three-dimensional structure of Fv fragment. The complex model of Fv interacting with hTNF-a was gained with computer-guided molecular docking method, based on which, it was predicted that the epitope recognized by Z12 was from 141 to 146 of hTNF-a. hTNF-a molecule was divided into two fragments of N-terminal region from 1 to 91 and C-terminal region from 92 to 157 with prokaryotic expression. The measured results suggested that the antigenic epitope recognized by Z12 antibody was located in the C-terminal region 92-157 of hTNF-a, proving the predicted result reliable preliminarily. Further experimental results showed that after hTNF- 141-146 residues were deleted, Z12 antibody almost lost the ability to recognize the mutant, suggesting that the amino acid residues from 141 to 146 of hTNF-a were specially recognized by Z12 antibody.

关键词： human tumor necrosis factor-α, Fv, antigenic epitope, homology-based modeling, deletion.

Clinicopathological and prognostic analysis of 429 patients with intrahepatic cholangiocarcinoma

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World Journal of Gastroenterology 2009年第47期15卷 5976-5982页

作者： wei-feng shen wei Zhong feng Xu Tong Kan Li Geng feng Xie Cheng-Jun Sui Jia-Mei Yang Department of Special Treatment Eastern Hepatobiliary Surgery Hospital Second Military Medical University 225 Changhai Road Shanghai 200438 China Department of Gastroenterology Changzheng Hospital Second Military Medical University 415 Fengyang Road Shanghai 200003 China

AIM:To understand the clinicopathological characteristics and treatment selections and improve survival and provide valuable information for patients with intrahepatic cholangiocarcinoma(ICC). METHODS:We retrospectively evaluated 5311 liver cancer patients who received resection between October 1999 and December *** these,429(8.1%)patients were diagnosed with ICC,and their clinicopathological, surgical,and survival characteristics were analyzed. RESULTS:Upper abdominal discomfort or pain(65.0%), no symptoms(12.1%),and hypodynamia(8.2%)were the major causes for medical *** tests showed 198(46.4%)patients were HBsAg positive, 90(21.3%)hadα-fetoprotein>20μg/L,50(11.9%) carcinoembryonic antigen>10μg/L,and 242(57.5%) carbohydrate antigen 19-9(CA19-9)>37 U/*** data was available for 329(76.7%)patients and their mean survival time was 12.4 *** overall survival of the patients with R0,R1 resection and punching exploration were 18.3,6.6 and 5.6 mo,respectively. Additionally,CA19-9>37 U/mL was associated with lymph node metastases,but inversely associated *** analysis indicated that radical resection,lymph node metastases,macroscopic tumor thrombi and size,and CA19-9 were associated with prognosis. CONCLUSION:Surgical radical resection is still the most effective means to cure *** laboratory tests(such as CA19-9)can effectively predict the survival of the patients with ICC.

关键词： Intrahepatic cholangiocarcinoma Diagnosis Pathology Surgery Survival

Effects of atorvastatin on progression of diabetic nephropathy and local RAGE and soluble RAGE expressions in rats

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第8期12卷 652-659页

作者： Lin LU Wen-hui PENG wei WANG Ling-jie WANG Qiu-jing CHEN wei-feng shen Department of Cardiology Ruoin Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200025 China Institute of Cardiovascular Diseases School of Medicine Shanghai Jiao Tong University Shanghai 200025 China

Objective:Advanced glycation end-products (AGEs) exert inflammatory and oxidative stress insults to produce diabetic nephropathy mainly through the receptor for AGEs (RAGE).This study aimed to assess the effect of atorvastatin on diabetic nephropathy via soluble RAGE (sRAGE) and RAGE expressions in the rat ***:Thirty-two male Sprague-Dawley rats were divided into four groups based on the presence or absence of streptozotocin-induced diabetes with or without atorvastatin treatment (10 mg/kg for 24 weeks).Serum sRAGE and glycated albumin (GA) levels were measured with enzyme-linked immunosorbent assay (ELISA) and improved bromocresol purple *** AGEs,RAGE,endogenous secretory RAGE (esRAGE),and sRAGE were determined with reverse transcription-polymerase chain reaction (RT-PCR) and Western ***:Mesangial expansion and microalbuminuria were aggravated in diabetic rats,and improved with atorvastatin *** sRAGE levels were lower in diabetic than in normal *** atorvastatin treatment,serum and renal sRAGE levels were up-regulated,while renal RAGE expression was decreased in diabetic rats,associated with a reduction in accumulation of AGEs,though renal esRAGE mRNA expression was not significantly ***:Atorvastatin exerted a beneficial effect on diabetic nephropathy with reduced AGE accumulation,down-regulating RAGE expression and up-regulating sRAGE in the kidney.

关键词： Receptor for advanced glycation end-product (RAGE) Endogenous secretory RAGE (esRAGE) Soluble RAGE (sRAGE) Diabetic nephropathy Atorvastatin

Effect of Hydrogen Addition on Low Temperature Metallurgical Property of Sinter

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Journal of Iron and Steel Research International 2012年第4期19卷 6-10页

作者： MU Lin JIANG Xin GAO Qiang-jian wei Guo shen feng-man School of Materials and Metallurgy Northeastern University Shenyang 110004 Liaoning China

Hydrogen-enrich iron making process is certainly to be an effective method to reduce greenhouse gases ***,the effect of hydrogen addition on the low temperature metallurgical property of sinter is still unclear.A detailed investigation was performed on the above *** results are as *** CO is partially replaced by H2,the RDI〈3.15（RDI〈2.8） of sinter decreases with the increase of the H2 content;when the content of H2 increases,the CO,CO2 and N2 decrease proportionally,in this case,RDI〈3.15（RDI〈2.8） of sinter increases with the increase of H2 content;the value of RDI〈3.15（RDI〈2.8） basically depends on the reduction index（Ri）.The experimental data of RDI〈2.8 based on Japanese industrial standard（JIS） are a little higher than the data of RDI〈3.15 based on Chinese industrial standard（CIS） in the same *** addition,for part of CO is replaced by H2：RDI〈2.8=3.38394＋1.1585 RDI〈3.15;for other gases,except H2,are decreased proportionally：RDI〈2.8=17.39678＋0.42922 RDI〈3.15

关键词： sinter hydrogen reduction disintegration index (RDI) metallurgical property

Screening for significant atherosclerotic renal artery stenosis with a regression model in patients undergoing transradial coronary angiography/intervention

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第8期13卷 631-637页

作者： Li-jin PU Ying shen Rui-yan ZHANG Qi ZHANG Lin LU feng-hua DING Jian HU Zheng-kun YANG wei-feng shen Department of Cardiology Ruijin Hospital Shanghai Jiao Tong Uniwzrsity School of MedicineShanghai 200025China Institute of Cardiovascular Diseases Shanghai Jiao Tong University School of MedicineShanghai 200025China

Objective:Early detection of atherosclerotic renal artery stenosis (ARAS) is clinically important with respect to blood pressure control, prevention of renal insufficiency, and even improving survival. We investigated whether the presence of significant ARAS (luminal diameter narrowing ≥70%) could be predicted using a logistic regression model before coronary angiography/intervention. Methods:Initially, we developed a logistic regression model for detecting significant ARAS based upon clinical and angiographic features and biochemical measurements in a cohort of 1 813 patients undergoing transfemoral coronary and renal angiography. This model was then prospectively applied to an additional 495 patients who received transradial renal angiography to ascertain its predictive accuracy for the presence of significant ARAS. Results:Multivariate regression analysis revealed that older age (≥65 years), resistant hypertension, type 2 diabetes, creatinine clearance (Ccr) ≤60 ml/min, and multivessel coronary disease were independent predictors for significant ARAS. A logistic regression model for detecting ARAS by incorporating conventional risk factors and multivessel coronary disease was generated as:P/(1 P)=exp( 2.618+1.112[age≥65 years]+1.891[resistant hypertension]+0.453[type 2 diabetes]+0.587[Ccr≤60 ml/min]+2.254[multivessel coronary disease]). When this regression model was prospectively applied to the additional 495 patients undergoing transradial coronary and renal angiography, significant ARAS could be detected with a sensitivity of 81.2%, specificity of 88.9%, and positive and negative predictive accuracies of 53.8% and 96.7%, respectively. Conclusions:The logistic regression model generated in this study may be useful for screening for significant ARAS in patients undergoing transradial coronary angiography/intervention.

关键词： Renal artery stenosis Transradial coronary angiography Resistant hypertension

Predictive value of SYNTAX score II for clinical outcomes in octogenarian undergoing percutaneous coronary intervention

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Journal of Geriatric Cardiology 2016年第9期13卷 733-739页

作者： Evan Kurniawan feng-Hua DING Qi ZHANG Zhen-Kun YANG Jian HU wei-feng shen Rui-Yan ZHANG Department of Cardiology Rui Jin Hospital School of Medicine Shanghai Jiao Tong University Shanghai China

Objective To evaluate the predictive value of SYNTAX Score II （SS-II） for percutaneous coronary intervention （PCI） in octogenarian （≥ 80 years old） undergoing PCI. Methods ＆ Results Data from three consecutive years of octogenarian undergoing PCI from Ruijin Hospital （Shanghai, China） was retrospectively collected （n = 308）. Follow up clinical data at one year including all cause mortality, cardiac mortality and main adverse cardiovascular and cerebrovascular events （MACCE） were collected. Patients were stratified according to tertiles of SS-II for PCI： SS-II 〈 26 （n = 104）, SS-II： 27-31 （n = 102）, SS-II 〉 31 （n = 102）. After adjustment for confounding factors, SS-II for PCI was an independent risk factors for all cause mortality （odds ratio： 2.77, 95% CI： 1.13-8.06; P = 0.04）. Kaplan-Meier curves showed higher event rates for all cause mortality and cardiac mortality in higher tertile of SS-II for PCI （Log-Rank test P = 0.002 and P = 0.001, respectively）. SSdl for PCI predicted one year mortality in octogenarian population undergoing PCI. Conclusions In octogenarian, SS-II which incorporated clinical variables with angiographic anatomy variable was suitable in risk stratifying and predicting clinical outcomes at one year.

关键词： Clinical research Elderly Risk stratification

Optimizing the Duration of Dual Antiplatelet Therapy After Implantation of Drug-eluting Coronary Stents

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Chinese Medical Journal 2015年第6期128卷 711-713页

作者： Ying shen wei-feng shen Department of Cardiology Ruijin Hospital Shanghai Jiaotong University School of Medicine Shanghai 200025 China

Percutaneous coronary intervention （PCI） with implantation of drug-eluting stents （DESs） has become the standard of care for coronary artery disease and gives a great impetus to device industry. In 2013, approximately half million patients with coronary artery disease underwent PCI in China with a penetration rate of DES reaching beyond 95%.131 The use of DES including domestic ones is highly effective in preventing coronary restenosis, but there is a collateral cost to be borne in terms of delayed healing or re-endothelialization of the stented arterial segment and risk of stent thrombosisJ41 Therefore.

关键词： Dual Antiplatelet Therapy Percutaneous Coronary Intervention Drug-eluting Coronary Stents

Clinical and angiographic features associated with coronary collateralization in stable angina patients with chronic total occlusion

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第8期14卷 705-712页

作者： Zhen SUN Ying shen Lin LU Rui-yan ZHANG Li-jin PU Qi ZHANG Zheng-kun YANG Jian HU Qiu-jing CHEN wei-feng shen Department of Cardiology Shanghai Ruijin Hospital Institute of Cardiovascular Diseases Shanghai Jiao Tong University School of Medicine

Objective： Coronary collateral circulation is an alternative source of blood supply to myocardium in the presence of advanced coronary artery disease. We sought to determine which clinical and angiographic variables are associated with collateral development in patients with stable angina and chronic total coronary occlusion. Methods： Demographic variables, biochemical measurements, and angiographic findings were collected from 478 patients with stable angina and chronic total coronary occlusion. The presence and extent of collaterals supplying the distal aspect of a total coronary occlusion from the contra-lateral vessel were graded from 0 to 3 according to the Rentrop scoring system. Results： Low （Rentrop score of 0 or 1） and high （Rentrop score of 2 or 3） coronary collateralizations were detected in 186 and 292 patients, respectively. Despite similar age, cigarette smoking, and medical treatment, patients with low collateralization were female in a higher proportion and less hypertensive, and had higher rates of type 2 diabetes and dyslipidemia than those with high coUateralization （for all comparisons, P〈0.05）. In addition, patients with low collateralization exhibited more single-vessel disease, less right coronary artery occlusion, more impaired renal function, and higher serum levels of high-sensitivity C-reactive protein （hsCRP） compared with those with high col- lateralization. Multivariate analysis revealed that age of 〉65 years, female gender, diabetes, no history of hypertension dyslipidemia, moderate to severe renal dysfunction, single-vessel disease, and elevated hsCRP levels were inde- pendently associated with low coronary collateralization. Conclusions： Coronary collateralization was reduced in almost 40% of stable angina patients with chronic total occlusion, which was related to clinical and angiographic factors. The impact of coronary collateralization on outcomes after revascularization needs further investigation.

关键词： Stable angina Coronary collateral circulation Risk factors Angiography Chronic total coronary occlusion

Clinical Utility of the Ratio Between Circulating Fibrinogen and Fibrin （ogen） Degradation Products for Evaluating Coronary Artery Disease in Type 2 Diabetic Patients

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Chinese Medical Journal 2015年第6期128卷 727-732页

作者： wei-Xin Xiong Ying shen Dao-Peng Dai Lin Lu Qi Zhang Rui-Yan Zhang wei-feng shen Rong Tao Department of Cardiology Ruijin Hospital Jiao Tong University School of Medicine Shanghai 200025 China Institute of Cardiovascular Disease Jiao Tong University School of Medicine Shanqhai 200025 China

Background:We investigated whether and to what extent the ratio between circulating fibrinogen (Fg) and its degradation products (FDP)reflects the severity of coronary artery disease (CAD) in type 2 diabetic ***:Plasma levels of Fg and FDP were determined,and Fg/FDP ratio was calculated in 344 consecutive patients with type 2 diabetes and chest pain on exertion undergoing coronary *** severity of CAD was evaluated by the number of significant CAD (＞50％ luminal diameter narrowing) and Gensini ***:Plasma Fg was higher,but Fg/FDP ratio was lower in patients with significant CAD (n =255) compared with those without (n =89),due to a disproportionate increase in *** and FDP correlated positively,while Fg/FDP ratio negatively,with the number of diseased coronary arteries and the tertile of Gensini score (all P values for trend ＜ 0.01).After adjusting for age,sex,risk factors for CAD,lipid profiles,glycosylated hemoglobin A1c,creatinine,leukocyte count,and high-sensitivity C-reactive protein,Fg/FDP ratio remained an independent determinant for multivessel coronary disease (MVD) (odds ratio [OR],0.869; 95％ confidence interval [CI],0.788-0.958,P =0.005) and high tertile of Gensini score (OR,0.797,95％ CI,0.682-0.930,P =0.004).The area under the curve of Fg/FDP ratio was larger than that of Fg for predicting the presence of MVD (0.647 vs.0.563,P =0.048) and Gensini score ≥ 30 (0.656 vs.0.53 8,P =0.026).Conclusions:Elevated plasma Fg and FDP level and reduced Fg/FDP ratio are associated with presence of CAD,and Fg/FDP ratio is superior to Fg in reflecting severe coronary atherosclerosis for patients with type 2 diabetes.

关键词： Coronary Artery Disease Diabetes Mellitus Fibrin (ogen) Degradation Products Fibrinogen

Development of the science of mass casualty incident management: reflection on the medical response to the Wenchuan earthquake and Hangzhou bus fire

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2014年第12期15卷 1072-1080页

作者： wei-feng shen Li-bing JIANG Guan-yu JIANG Mao ZHANG Yue-feng MA Xiao-jun HE Department of Emergency Medicine the Second Affiliated Hospital School of Medicine Zhejiang University

Objective： In this paper, we review the previous classic research paradigms of a mass casualty incident （MCI） systematically and reflect the medical response to the Wenchuan earthquake and Hangzhou bus tire, in order to outline and develop an improved research paradigm for MCI management. Methods： We searched PubMed, EMBASE China Wanfang, and China Biology Medicine （CBM） databases for relevant studies. The following key words and medical subject headings were used：＇mass casualty incident＇, ＇MCI＇, ＇research method＇, ＇Wenchuan＇, ＇earthquake＇, ＇research paradigm＇, ＇science of surge＇, ＇surge＇, ＇surge capacity＇, and ＇vulnerability＇. Searches were performed without year or language restriction. After searching the four literature databases using the above listed key words and medical subject headings, related articles containing research paradigms of MCI, 2008 Wenchuan earthquake, July 5 bus fire, and science of surge and vulnerability were independently included by two authors. Results： The current progresses on MCI management include new golden hour, damage control philosophy, chain of survival, and three links theory. In addition, there are three evaluation methods （medical severity index （MSI）, potential injury creating event （PICE） classification, and disaster severity scale （DSS））, which can dynamically assess the MCI situations and decisions for MCI responses and can be made based on the results of such evaluations. However, the three methods only offer a retrospective evaluation of MCI and thus fail to develop a real-time assessment of MCI responses. Therefore, they cannot be used as practical guidance for decision-making during MCI. Although the theory of surge science has made great improvements, we found that a very important factor has been ignored--vulnerability, based on reflecting on the MCI response to the 2008 Wenchuan earthquake and July 5 bus fire in Hangzhou. Conclusions： This new paradigm breaks through the limitation of traditional research paradigm

关键词： Mass casualty incident Surge Vulnerability Earthquake Fire incident