Objective To investigate the expressions of the CD13 in gastric cancer and the relationships between it and the patients' prognosis.Methods The expressions of CD13 were detected by immunohistochemical (SP method) in 104 cases of gastric cancer and 16 cases of normal gastric mucosa.Results The expressions of CD13 in 104 cases of gastric carcinoma and 16 cases of normal gastric mucosa show positive rate were 74％ (77/104) and 0％,respectively.The expressions of CD13 in gastric cancer were higher than in normal gastric mucosa and the difference was statistically significant (P ＜ 0.01).The expressions of CD13 in gastric cancer were not relative to patients' age,gender,and lymph node metastasis (P ＞ 0.05),but to be correlative with tumor sizes,clinical stage,degree of differentiation,and patients' 5-year survival rate (P ＜ 0.05).Conclusions The abnormal expression of CD13 in the gastric cancer may be correlative with the occurrence and development of gastric cancer,which can be an important indicator to evaluate the degree of malignance,guide treatment and assess uncertain prognosis of gastric cancer.

Objective To evaluat physical exercise's effct on left ventricle diastolic function.Methods 12 college athletes and 12 students' transmital flow volume in peace state were measured and analysed. Results College athletes' MV VTI is bigger, MEAD GRAD and A are smaller.Conclusion Physical exercise can improve the brimming and unhindering abilities of left ventricle and increase the area of mitral valve.

OBJECTIVE:To explore the protective effects of Tongmaitang yanming capsules on retinal damage of aged rats. METHODS:Aged rats(aged 24 months)were randomly divided into Tongmaitang yanming capsule high-dose,medium-dose and low-dose groups (1.750,0.875,0.378 g/kg),positive control drug group (Calcium dobesilate capsules,0.175 g/kg) and model group,with 10 rats in each group. They were given relevant medicine intragastrically once a day for consecutive 90 days. At the end of the 90th day,another 10 rats aged 1.5 months were included into blank control group. After medication,60 rats were provid-ed with water but no food for 12 hours. Blood sample was collected from femoral,and the serum levels of GSH-Px,GSH,SOD and MDA was determined,respectively;right eyes were sampled,pathological change of retina was observed by HE staining and the number of retinal cell layer (RCL) neurons was counted. RESULTS:Compared with blank control group,serum levels of GSH-Px,GSH and SOD decreased in model group,while MDA level increased;the number of RCL neurons was (59 ± 4)% of blank control group (P<0.05 or P<0.01),and retina damage was found. Compared with model group,the serum levels of GSH-Px,GSH and SOD increased in positive control drug group and Tongmaitang yanming capsule groups,while MDA level de-creased;the number of RCL neurons in those groups were (98 ± 7)%,(69 ± 5)%,(78 ± 7)% and (95 ± 6)% of blank control group,respectively (P<0.05 or P<0.01);retina damage was relieved. CONCLUSIONS:Tongmaitang yanming capsules can in-hibit aging-induced lipid peroxidation of rat retina,prevent the progressive loss of retina neurons and protect aging-induced retina damage of rats.

Objective To study the change and relationship among thrombopoietin (TPO), platelet parameter and megakaryocyte in immune vasculitis of weanling rabbits. The role of platelet parameter, megakaryocyte, thrombopoietin (TPO) in kawasaki disease (KD) was accessed. Methods An experimental model of weanling rabbits for KD was reproduced by bovine serum. The blood platelet counts (PLT), mean platelet volume (MPV), platelet distribution width (PDW), platelet hematocrit (PCT), megakaryocyte and TPO were determined ev-ery four days. Pathological analysis of coronary artery, liver, spleen, kidney, brain was also done. Results PLT, PCT, PDW and the per-centage of total number of megakaryocyte and middle board megakaryocyte in the experimental group had obviously changes at the 12th, 16th, 20th, 24th, 28th day (P <0.05). MPV in the experimental group had obviously changes in the 12th, 24th, 28th day(P <0.05). TPO in the experimental group was higher than that in control group (P < 0.05). TPO in both groups was positively correlated with PLT, PCT, the percentage of total number of megakaryocyte and middle board megakaryocyte (P < 0.05). In experimental group, small arteries showed obvious inflammatory injury at the 17th day, medium-sized arteries showed obvious inflammatory injury at the 28th day, but the aortas showed mild changes. Conclusion Platelet, megakaryocyte and TPO took part in the pathogenesis of KD, and they had interaction and co-ordination in the course of regulation, which suggested that they could be used to monitor the changes in the KD and guide the treatment.

Objective To study the feasibility and timing of early laparoscopic cholecystectomy (LC) for the patients with mild-to-moderate acute pancreatitis with gallbladder stone.Methods 26 patients with mild-to-moderate acute pancreatitis with gallbladder stone underwent early laparoscopic cholecystectomy.The patients were initially treated with conservative treatment.When the diagnosis was confirmed and the patients were stable,LC was carried out within 48 hours of hospitalization.The results were compared with a delayed group of patients who received delayed LC for acute pancreatitis.Results All the LC operations were successfully carried out.There were no significant differences between the two groups in alkaline phosphatase,alanine aminotransferase,aspartate aminotransferase,blood amylase and urine armylase on postoperative day 1,3,5,7.Patients who received early laparoscopic cholecystectomy had a shorter hospital stay.There were no significant differences between the two groups in the operation time,intraoperative blood loss,postoperative complication rates and recurrence of acute pancreatifis.Conclusion After CBD stones have been ruled out,it is safe and feasible to carry out early laparoscopic cholecystectomy within 48 hours of hospital admission for patients with mild-to-moderate acute pancreatitis with gallbladder stone.

AIM: Our study focused on investigation of tissue specific regulatory activity of the newly cloned promoter: PLUNC-p with driving enhanced green fluorescent protein ( EGFP ). METHODS: Transgenic Xenopus Laevis system was applied.RESULTS: The green fluorescence protein directed under PLUNC-p was expressed strictly in branchial arches and epidermis of Xenopus Laevis embryos while CMV promoter showed ubiquitous regulation characteristic.CONCLUSION: PLUNC-p is able to direct epithelia specific expression of EGFP . This property of PLUNC-p might raise the possibility that lead target genes to express tissue-specifically.

Objective To compare coronary artery abnormality between patients with silent myocardial ischemia (SMI)and pa-tients with symptomatic myocardial ischemia using coronary artery CT angiography.Methods Forty-three patients with SMI and 45 patients with symptomatic myocardial ischemia were collected and underwent coronary CT angiography using 128-slices spiral CT scanner,respectively.Results Stenosis of coronary artery detected in 23 patients with SMI was (23/43,53.49%),and stenosis in 21 patients with symptomatic myocardial ischemia was (21/45,46.67%).The difference of incidence had no statistical significance, but the degree of stenosis and the number of stenosis vessel had statistical significance(P <0.05).The number of atherosclerotic plaque of coronary artery detected in patients with symptomatic myocardial ischemia was significantly more than that in patients with SMI(P <0.05).Conclusion There are no significant difference in the incidence of coronary stenosis between the patients with SMI and patients with symptomatic myocardial ischemia.However,the degree of stenosis and incidence of atherosclerotic plaque are sig-nificant different.

Malignant tumors continue to pose a significant threat to human life and safety and their development is primarily due to the activation of proto-oncogenes and the inactivation of suppressor genes.Among these,the activation of proto-oncogenes possesses greater potential to drive the malignant transformation of cells.Targeting oncogenes involved in the malignant transformation of tumor cells has provided a novel approach for the development of current antitumor drugs.Several preclinical and clinical studies have revealed that the development pathway of B cells,and the malignant transformation of mature B cells into tumors have been regulated by oncogenes and their metabolites.Therefore,summarizing the key oncogenes involved in the process of malignant transformation of mature B cells and elucidating the mechanisms of action in tumor development hold significant importance for the clinical treatment of malignant tumors.

Objective: To investigate the proteins expression difference after upregulation of human CD99 in Hodgkin Lymphoma cell line, L428 cell, and verify the function of differential proteins. Methods: The differential proteins were detected by two-dimensional fluorescence difference gel electrophoresis and mass spectrometry analysis, cluster analysis was done by GOfact. Results: There were 38 proteins screened out, of which 21 proteins were positively associated with CD99, while 17 proteins were negative. Among the 38 proteins, 32 proteins participated in biological process, and 35 proteins were involved in the composition and construction. And 28 proteins participated in multifaceted biological activities including antioxidation, protein binding, catalytic activity, regulation of enzyme, signal transduction, molecular structure, regulation of translation and ion transport. Conclusions The changes of the differential proteins, correlated with cytoskeleton, cell differentiation, signal pathway and regulating gene expression, are closely relevant to the translation between Hodgkin/Reed-Sternberg and B lymphocyte cell.

Objective:To analyze qualitative research on safety culture cognition of medical staff and patients in medical institutions, for references to promote the development of safety culture in medical institutions.Methods:This study searched English databases such as PubMed and Embase, as well as Chinese databases such as CNKI and Wanfang, to collect qualitative research related literature on the safety culture cognition of medical staff and patients in medical institutions. The search period was from database establishment to July 15, 2023. The inclusion and exclusion criteria for literature, and the Australian JBI critical appraisal tool for qualitative research were used to screen the literature, and a meta-synthesis method was used to integrate and analyze the research results.Results:A total of 13 articles were included, and 30 research results were extracted and integrated into three levels: individual, organizational, and interpersonal. Among them, the individual level included three categories: responsibility and ability, personal factors, and patient factors. The organizational level included five categories: patient safety as the primary principle, management level, regulations and processes, work environment, and safety culture atmosphere. The interpersonal level included two categories: cooperation and communication.Conclusions:The development and construction of safety culture were influenced by various factors. Medical institutions should attach importance to the core competency building of medical personnel and advocate for patient participation in safety culture construction; Promote the development of safety culture in medical institutions and improve the management system for adverse events; Improve team collaboration efficiency, standardize communication and exchange modes, and improve the quality of medical safety.