Objective:To observe the tansdifferentiation of bone marrow mesenchymal stem cells(MSCs) into cardiomyocyte in a coculture system with cardiomyocytes.Methods:Newly born Wistar Rats' cardiomyocytes were isolated and cultured and the cells were labeled with DAPI.Prepared MSCs were planted into the cardiomyocytes dishes to establish a co-culture system.Supernatant liquid of the cardiomyocytes or fibroblast was added the MSCs(non-labeled) dishes as the control. After one week of coculture,fluorescence microscope observation and immunocytochemical staining with cTnT was performed to evaluate the phenotype changes in non-labeled MSCs.Results:MSCs and cardiomyocytes were connect with each other by net in culture plate after a few days of coculture;some non-labeled cells were positively stained by cTnT antibody while the MSCs cultured with cardiomyocytes or fibroblast supernatant liquid were stained negatively.Conclusion:To obtain cardiomyocyte phenotype in vitro,direct contact of MSCs with cardiomyocytes is essential.The signaling molecules induce MSCs' transformation into cardiomyocytes are likely some membrane proteins on the surface of cardiomyocytes.

0.05) respectively in groupC1-C4,while in groups T1-T5,the rates were 21%,28%,36%,40%,37.5% ( P 0.05).However,the differentiation rate of MSCs increased probably with the incubation time prolonged.During the procedure of MSCs differentiation,the expression pattern of some genes such as GATA4 and cTNT may make some difference.

Ocular neovascularization,abnormal formation of new vessels from pre-existing capillaries,is a special pathologic change of many ocular diseases,including diabetic retinopathy and retinopathy of prematurity,etc..Ocular neovascular diseases comprise the common causes of blindness in millions of people.Recent studies showed that kringle domains from many endogenous proteins inhibit the proliferation and migration of endothelial cells in vitro and neovascular formation in vivo.Hence kringle domain with conservative structure has been considered as a potential inhibitor of neovascularization.The update studies on antiangiogenic kringle domains and its inhibition on ocular neovascularization were summarized.

This paper argues that the core idea of evidence-based medicine is to “follow the evidence”,whose essence is a model of clinical medical service,and a guiding ideology for the clinical practice.It has become a proper noun nowadays.The wording “evidence-based medicine teaching method”needs discussion, because “evidence-based medicine” and “teaching method” are lack of logical internal relations in concept.The teaching method of scientific sense has its own characteristics and requirements.To name a teaching method,it is necessary to define its peculiar connotation in teaching method,with specific procedures and steps to form a complete set of scientific method of teaching.

As the burden of anesthesiology teaching is heavy in undergraduate course, teachers can communicate with the students by nonverbal behaviors, such as eye contact, silent language, facial expression, paralanguage, which can make class atmosphere active, develop harmonious teacher-student relationship, and improve the quality of class teaching. Teachers of anesthesiology should take some measures, such as rehearsing lessons, summing up the experience of the lessons in time, accu-mulating the experience of nonverbal behaviors, and doing some exercise for the nonverbal behavior as much as possible, so as to set up an excellent atmosphere for teaching ,and meanwhile improve the quality of anesthesiology teaching.

In the several years,clinical practice,Professor LU Zhi-zheng has accumulated abundant experiences in the treatment of splenic-gastric diseases,and developed a unique treatment system of splenic-gastric diseases. Through the analysis of the recent cases dealt with by Professor LU Zhi-zheng,fi ve features of treatment are preliminarily summarized,i.e. combination of dryness and moisture,independence of increase and decrease upon each other,co-utilization of coldness and warmth,simultaneous application of reducing and nourishing therapies and co-treatment of splenic and gastric diseases,which fully embody the dialectical treating philosophy of Yuan-ji-huo-fa of Professor LU Zhi-zheng,and such treating method is of considerable guiding signifi cance for us to cure the splenic-gastric diseases and other diffi cult and complicated diseases by treating the splenic-gastric diseases.

Nondegradable stent graft and drug-eluting stent inhibit intima hyperplasy to certain extent, reduce the incidence of restenosis, and probabilize the treatment of coronary artery disease. However, the stent is a metallic foreign body, so it can induce thrombogenesis or immune responses. Novel biodegradable stent has good biocompatibility and biodegradation. It can degrade into CO2 and H2O2, participate metabolism, with no toxicity or complication caused by permanent metal stent. However, the biodegradable stent possesses inadequate mechanical performance and support. How to improve the biological stability and controllability through optimizing material integral quality and modulating their molecular constitution, and how to reduce inflammatory reaction and vascular restenosis after stenting are the study focuses in medical and material fields.

Infection can complicate different stages of acute pancreatitis.The probability of infection is related to the existence and extent ofpancreatic necrosis: up to 30% of patients with pancreatic necrosis develop infection.The timing of infection is variable and usually peaks in the second to fourth week after the onset of pancreatitis.IPN(infected pancreatic necrosis)is the most common type of secondary pancreatic infection.Infectious complications in severe acute pancreatitis are associated with considerable morbidity and mortality.Antimicrobial therapy is one of the fundamental elements of therapy.Diagnosis of secondary pancreatic infection is challenging and radiologic characteristic (air bubble sign) and CT guided fine-needle aspiration (FNA) are reliable diagnostic strategies.Antibioticuse should be rational in terms of a rational indication, a rational spectrum, and a rationalduration.Prophylactic antibiotics are not beneficial in improving prognosis.The only rational indication for antibiotics is documented infection.The empirical antibiotics should cover common microbials of hospital-acquired intra-abdominal infection and with good pancreatic penetration.Also, fungal infections are often present in thesepatients, and early diagnosis and antifungal coverage should be considered.Duration is in fact largely determined by the presence and efficacy of source control.When there is no or minimal residual infection left after a source control procedure, a duration of 7 to 10 days is probably sufficient.On the other hand, if the source of infection has not been removed completely, prolonged courses until the residual necrosis has been sterilized are necessary.

Objective To investigate the infection status of helicobacter pylori(Hp) among health examination population ,and its relationship to lipids ,glucose ,uric acid ,PLT ,PDW and MPV .Methods Hp antibody in serum was tested by immune colloidal gold assay among of health population .And serum lipids ,glucose ,uric acid ,PLT ,PDW and MPV were measured in some subjects . A retrospective analysis was done to the data of 2 147 cases in health examination population .Results The infection rates of Hp was 38 .80% (833/2 147) in 2 147 cases .Among them ,the infection rate in male was 41 .10% (538/1 309) ,and which in female was 35 .20% (295/838) ,it was statistical difference in the infection rate in between male and female(P<0 .05) .The infection rate in age group(40 to 49) was higher than which in other age group and It was statistically significant (P<0 .05) ,and there were significant difference in between male age group and in female age group(P<0 .05) .Comparing the control group ,the serum levels of TC , LDL‐C were significantly higher(P<0 .05) ,while the serum level of HDL‐C was obviously lower(P<0 .05) .In patients with Hp infection and TC>5 .17 mmol/L ,the level of glucose and uric acid were significantly higher(P<0 .05) .Conclusion The distribu‐tion of the Hp infection was difference in gender and age;The infection of HP can effect the metabolism of serum lipids ,glucose and uric acid .

Objective To compare the perioperative application of fast track surgery(FTS)andtraditional surgery for fractured fibs.Methods Eighty four perioperative patients with fractured fibs wereenrolled,including 42 cases treated by FTS philosophy(FTS Group)and 42 cases treated by traditional surgery(Tradition Group).The results of postoperative VAS score,serum albumin,recovery time of gurglingsound,exhaust time of intestinal tract,postoperative complications,hospital stay,total hospital cost and patient satisfaction were investigated and compared between the two groups.Results Patients in FTS grouphad lower VAS scores,higher level serum albumin,earlier time of gurgling sound recovery and intestinalexhaust,lower rates of postoperative complication,shorter time of hospital stay,lower hospital costs andhigher levels of satisfaction(P <0.05).Conclusion For perioperative patients with fractured fibs,FTShas advantages in low VAS score,good nutrition condition,short intestinal tract convalescence,low postoperative complication rate,short hospital stay,low host costs and high level of satisfaction,which is worthy ofbeing spread.