Objective: To systemically evaluate the efifcacy and safety of coronary artery bypass grafting (CABG) without stopping pre-operative aspirin administration for anti-platelet therapy in relevant patients. Methods: The computer searching including Cochrane Library (Issue 2, 2014), PubMed, EMbase, CBM, CNKI, WanFang Data and VIP was conducted to collect the randomized controlled trial (RCT) for CABG without stopping pre-operative aspirin administration from the data base establishment until 2014-07. There were 2 reviewers identiifed the literatures independently according to inclusion, exclusion criteria, and extracted the information, evaluated the quality of assessment methods, then meta-analysis was performed by RevMan 5.2 software. Results: A total of 8 RCT studies including 1945 patients were enrolled. The meta analysis showed that compared with stopping pre-operative aspirin administration, the patients without stopping pre-operative aspirin had obviously increased post-operative bleeding drainage as MD=235.97,P=0.01, re-operation for bleeding as OR=2.4,P=0.0005 and fresh frozen plasma transfusion requirement as MD=0.79,P<0.0001. While the packed red blood cell (PRBC) transfusion requirement as MD=0.66, P=0.05, platelet transfusion requirement as MD=0.99,P=0.25, the incidence rate of post-operative myocardial infarction as OR=1.03,P=0.90 and post-operative mortality (OR=1.24,P=0.56) were similar between two conditions. Conclusion: CABG without stopping pre-operative aspirin administration may increase the post-operative bleeding,transfusion and re-operation for bleeding; low dose aspirin administration before CABG needs further investigation to solve the above problems in clinical practice.

Animal models play an important role in study on food allergy.This paper reviews the potential benefits and pitfalls of different animal models,including animal species and strains,test proteins,routes of exposure,the incorpration of adjuvants and evaluting indictor of allergic models,which can provide theoretical basis for evaluting the potential allergenicity of novel proteins and preventing food allergic diseases.

In order to take advantage of the model of rat in cardiovascular research, get rid of the influences of the nerve and humoral factors to cardiac function, fix the cardiac load state, and obtain such valuable indices as ejection fraction, left ventricular volume, etc., an isolated working heart perfusion system was set up to observe the changes of the cardiac systolic and diastolic function, ventricular compliance and pumping function. The results of a series of experiments indicated that the stability and responsibility of this perfusion model are satisfactory. The results of coronary ligation and reperfusion were correspondent to those of other authers. This perfusion system can be used in the studies of physiolgoy, biochemistry, pharmacology and pathophysiology.

In order to study the changes of cardiac function in adriamycin-induced cardiomyopathyadriamycin had been given to the rats in a small dosage(1mg/kg body weight, every week) for ten weeks. Cardiac functions were measured after the pretreatment. The results indicated that: 1. arterial blood pressure, cardiac output, stroke volume and heart rate had not changed significantly; 2. left ventricular spike pressure had not changed but ?dp/dtmax decreased by 14%(Control 728.88?38.39 KPa/s, ADM 626.77?25.59 P

Objective To review systemically the safety of endoscopic vessel harvesting ( EVH ) in coronary artery bypass grafting (CABG). Methods By searching documentations in the Cochrane Library , Pubmed, Medline,EMbase, CBM, CNKI, Wanfang database , and Weipu database , with no limits for language , a random-controlled meta-analysis was assembled for evaluating the safety of EVH of great saphenous veins in CABG .The retrieval deadline of these databases was September 2013.Two evaluators were in charge of selecting , extracting , and assessing the quality of methodology in all these articles according to extract criterion independently.The RevMan 5.2 was used for meta-analyse. Results The whole test included 12 RCTs and 1510 patients, comprising of 857 patients with EVH and 653 patients with traditional harvesting .As compared with traditional group , the EVH group showed lower rate of postoperative incision infection [OR=0.24, 95%CI:0.16-0.36, P<0.0001], less postoperative pain [OR=-1.06, 95%CI:-1.26--0.86, P<0.0001], and less postoperative complications [OR=0.28, 95% CI:0.19-0.42, P<0.0001].There were no significant differences between the two groups in hospital stay [WMD=0.17, 95%CI:-0.22-0.56, P=0.40] and mortality [OR=0.88, 95% CI:0.30 -2.64, P=0.82]. Conclusion EVH factually reduces trauma in CABG, postoperative infection rate , postoperative pain , postoperative complications , and hospital stay ,being applicable for high risk patients .

Human cytomegalovirus(HCMV) is a neurotropic virus.Brain nerve cells are HCMV sensitive cell.Early fetal infection HCMV can lead to cerebral necrosis,calcification,cerebral developmental delay,common diffuse brain damage.The surviving fetus present prominent central nervous system damage,clinical manifestations of microcephaly,cerebral palsy and epilepsy and mental retardation,with memory impairment as the main symptoms.This paper reviews the HCMV intrauterine infection leads to memory impairment progress.

Objective To investigate the efficacy and significance of endoscopic sphincterotomy(EST)and endoscopic nasobiliary drainage(ENBD)combined with the continuous blood purification(CBP)in the treatment of severe acute pancreatitis(SAP).Meth-ods The clinical data of 179 patients with SAP treated in our hospital over a period of ten years were retrospectively analyzed.The cases were divided into four groups according to the treatment methods.The conventional group was treated with the routine meth-od,the CBP group received the CBP therapy combibed with routine methods,the endoscopic group was given EST and ENBD on the basis of the routine methods and the combined group was treated with CBP,EST and ENBD.The patients′vital signs,WBC,CRP, APACHE Ⅱ score,abdominal signs change,incidence of complications,mortality and hospitalization days were compared among 4 groups.Results Compared with the conventional group,the clinical indicators,WBC,CRP,APACHEⅡ scores,blood amylase lev-el,incidence of local complications,mortality and hospitalization days in the rest three groups were decreased significantly(P<0.05),the total effective rate of abdominal signs relief was significantly increased(P<0.05);compared with the rest groups,the to-tal effective rate of abdominal signs relief in the combined group was increased(P<0.05),the blood amylase level,incidence of local complications and hospitalization days were decreased significantly(P<0.05),the mortality was significantly lower than that in the conventional group(P<0.05),however there was no difference between the CBP group and the endoscopic group(P>0.05).Con-clusion CBP combined with EST and ENBD in treating SAP has the active and effective role for improving the disease condition, reducing complications and the mortality,and shortening the hospitalization time.

Valve replacement is the primary means of treatment of valvular disease. With the further research of artificial valve, Prosthesis-patient mismatch is becoming a hot research hotspot. This paper reviews research status of Prosthesis-patient mismatch.

The article introduces a set of efficient English teaching methods through continuous practice and reform.The methods are based on the characteristics of the foreign students.It includes choosing the book in English and compiling English-Chinese bilingualism textbook,question-based and quiz-based teaching in class and reviewing after class and so on.The methods have shown good effects in raising quality of teaching to the international students.At the same time there are some problems in the Lemology teaching.

Background The primary pathologic mechanism of posterior capsular opacification (PCO) is proliferation,migration and epithelial-mesenchymal transformation of residuary lens epithelial cells (LECs) following cataract surgery.Matrix metalloproteinases (MMPs) play a role during the migration of LECs.Researches showed that GM6001,a broad inhibitor of MMPs,can arrest the migration of LECs,but as specific inhibitors of MMPs,the efficacy and safety of MMP-2/9 inhibitor Ⅰ and Ⅱ on LECs migration remain unclear.Objective This study was to determine and compare the inhibitory efficacy among GM6001,MMP-2/9 inhibitor Ⅰ and Ⅱ on human LECs and search the clinical medication to prevent PCO.Methods Human LECs were cultured and passaged in vitro,and the cells of 3-4 generation were incubated in 6-well plates.Then the cells of 70％ confluent monolayer were cultured in DMEM without fetal bovine serum for 12 hours.GM6001,MMP-2/9 inhibitor Ⅰ and Ⅱ at different concentrations (0.25,0.50,1.00,2.00,4.00,8.00,16.00,32.00,64.00,128.00 μmol/L) were added into the culture medium for 24 hours separately,and regularly cultured cells served as the control group.A bare area was made by a 200 μl sterile spear on the cell layer,and the migrated distance and inhibitory rate were calculated.The second or third generation of cells were incubated in 96-well plates at a density of 5×105/ml (200 μl/well).GM6001 (128.00 μmol/L),MMP-2/9 inhibitor Ⅰ (64.00 μmol/L) and Ⅱ (32.00 μmol/L) were added into the culture medium for 24 hours,and the cell viability was assayed by using MTT assay.Results Cultured cells grew well with irregular arrangement and presented the polygon in shape.The migrated distance was gradually reduced as the increase of concentrations of GM6001,MMP-2/9 inhibitor Ⅰ and Ⅱ,showing significant differences among the various concentration groups (GM6001:F=248.647,P＜0.05;MMP-2/9 inhibitor Ⅰ:F=357.125,P＜0.05;MP2/9 inhibitor Ⅱ:F=396.374,P＜ 0.05).The cell migrated distance in the control group was set to 1,the relative migrated distances were 0.478 ± 0.091,0.294±0.088 and 0.191 ±0.081 in the GM6001 group,MMP-2/9 inhibitor Ⅰ group and MMP-2/9 inhibitor Ⅱ group at the concentrations of 32.00 μmol/L,respectively,showing a significant difference among the groups (F =116.031,P＜0.01),and cell migrated distance was obviously shorter in the MMP-2/9 inhibitor Ⅱ group than that in the GM6001 group or MMP-2/9 inhibitor Ⅰ group (all at P＜0.01).The A values were 0.607±0.016,0.567±0.015,0.583±0.010 and 0.595 ±0.0138 in the control group,GM6001 group (128.00 μmol/L),MMP-2/9 inhibitor Ⅰ group (64.00 μmol/L) and MMP-2/9 inhibitor Ⅱ group (32.00 μmol/L),respectively,without significant difference among the groups (F=1.403,P＞0.05).Conclusions GM6001,MMP-2/9 inhibitor Ⅰ and Ⅱ reduce the mobility of human LECs effectively but do not affect the viability of the cells in vitro.MMP-2/9 inhibitor Ⅱ appears to be most dominant in inhibiting migration of human LECs.