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

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.

Objective To analyze the hypothalamic-pituitary-adrenal axis function in type 2 diabetes mellitus(T2DM) patients combined with depression with different courses.Methods Forty T2DM without depression patients (T2DM without depression group) and 42 T2DM combined with depression patients (T2DM combined with depression group) were divided into 3 groups according to the courses:＜ 5years,5-15 years,＞ 15 years.Thirty healthy person were selected as control group.The levels of serum adrenocorticotropic hormone (ACTH),cortisol (Cor),fasting blood glucose (FPG),glycosylated hemoglobin (HbA1c),24 h urinary-free cortisol (UFC) were determined at 8:00 Am.Results The levels of serum ACTH,24 h UFC in T2DM without depression group were higher than those in control group [(241.7 ±132.6) pg/L vs.(174.1 ± 108.2) pg/L and (96.67 ± 15.92) μg vs.(76.04 ±24.60) μg],and there were significant differences (P ＜ 0.05 or ＜ 0.01).There were no significant differences in the levels of serum ACTH,Cor,24 h UFC among ＜ 5 years,5-15 years,＞ 15 years in T2DM without depression group (P＞0.05).The levels of serum Cor,24 h UFC in T2DM combined with depression group were higher than those in T2DM without depression group and control group,and there were significant differences (P ＜ 0.01),but compared with those in T2DM without depression group with the same courses,only ACTH was different in ＜5 years (P ＜ 0.01),Cor,24 h UFC was different in ＞ 15 years (P ＜ 0.01).There was significant difference in the level of serum ACTH between ＜ 5 years and 5-15 years,＞ 15 years in T2DM combined with depression group (P ＜ 0.01),Cor had no difference among different courses (P ＞ 0.05),24 h UFC had difference between ＞ 15 years and ＜ 5 years,5-15 years (P＜ 0.01 or ＜ 0.05).In T2DM without depression group,the level of serum Cor was positively correlated with FPG (P ＜ 0.01),the level of serum ACTH was positively correlated with FPG (P ＜0.05).In T2DM combined with depression group,the level of serum Cor was positively correlated with FPG,HbA1c (P ＜ 0.01),the level of serum ACTH was no relationship with others,the level of serum 24 h UFC was positively correlated with FPG,HbA1c (P＜ 0.01).Conclusion With the prolonged courses of diabetes,the function of hypothalamic-pituitary-adrenal axis gets worse in T2DM patients combined with depression.

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.

In order to investigate the influence of interleukin 1?(IL 1?) and tumor necrosis factor ? (TNF ?) on gene expression of rat interstitial collagenase (MMP 13 ) in hepatic stellate cells, cells of a hepatic stellate cell line (HSC T6) were cultured in medium containing IL 1? or TNF ? for different incubation periods. Total RNA of HSC was extracted and MMP 13 gene expression levels were measured by reverse transcription polymerase chain reaction. The results showed that MMP 13 gene expression level of the IL 1? group was much higher than that of the control group at 8h, 24h and 48h after exposure to IL 1?. The maximal value was 3 fold of the control group and was at 24h . MMP 13 gene expression level of the TNF ? group was also significantly higher than that of control group at 8h, 24h, 48h, 72h, and the maximum nalue was 4 fold of the control group at 48h. These results indicated that IL 1? and TNF ? might increase the gene expression of MMP 13 in hepatic stellate cells.

Objective To find the course of theme evolution for study of medical protection against nerve agents.Meth-ods A method of information visualization based on co-cited analysis was used.The research domain of medical protection against nerve agents was mapped using software VOSviewer.Results There were five research clusters including clinical research, oxime reactivators, detoxification and detection,and bioscavengers.Conclusion Theme evolution is described and research trends are predicted.

Objective:To explore the immunity provided to BALB/c mice by immunization with the recombinant ricin B chain protein (rRTB). Methods:Female BALB/c mice were randomly selected into rRTB-vaccinated group and PBS group. Mice were subcu-taneously (s. c. ) injected four times with 14 days immunization time interval. Changes of antibodies (IgG,IgG1and IgG2a) in serum were detected by ELISA. Meanwhile,the expression of IL-4 and IFN-γ were detected by flow cytometry. Results:The mean IgG titers reached 106 after the fourth immunization and a strong secondary response was induced in vaccinated mice when challenged with toxin. There was significant difference between rRTB-vaccinated group and PBS group ( P<0. 05 ) . The same result was shown in IgG1. However,no changed was detected in IgG2a. Meanwhile,there was significant difference for IL-4 between two groups (P<0. 05), while no significant difference for IFN-γwas observed. Conclusion:rRTB can produce higher levels of antigen-specific antibodies ( IgG and IgG1),and cytokine (IL-4) of splenocytes,which means the recombinant protein can induce the Th2-type immune response and trigger a good immune response. rRTB may be a potentially valuable vaccine candidate against human exposure to AT.

The effects of superoxide dismutase (SOD) on mitochondrial function after hypoxic and reoxygenated perfusions in isolated rat hearts were observed. Significant decreases in respiration control ratio (RCR) and ADP/O ratio (P/O) as well as activities of succinic dehydrogenase (SDH) and cytochrome oxidase (CCO) were found alter 40 minutes' hypoxia and 20 minutes' reoxygenated perfusion. Adding SOD to the perfusion fluid during the reperfusion period could restore the decreased mitochondfial function, which was shown by increased RCR and P/O as well as activities of SDH and CCO.

To investigate and analyze the factors which influence the public attitudes towards autopsy after accidental deaths.The study has carried on an investigation among 386 individuals in random,with a questionnaire named "The cognition of the public whether to carry on the autopsy after accidental deaths".Using the statistical methods of the Logistic Regression analysis and optimum regression analysis to analyze the recycling questionnaires.Through the diagnosis,we found there are four main factors which influence public opinion upon the autopsy after accidental deaths,the knowledge of autopsy,the believing in autopsy,years of schooling and family financial circumstances.

Objective To investigate the application of orthogonal design to optimize real-time quantitative PCR conditions and perform it for ICAM-1.Methods After model of a skin injury was established in rats,total RNA was isolated from the injured skin tissue and reverse transcriptase reactions were carried out.Using orthogonal design real-time quantitative PCR conditions,the expression level of ICAM-1 gene was studied by use of cDNA as template.The standard of score was set up to amplification and dissociation curves and statistical analysis was done based on the optimized conditions.Results Through 25 tests the best real-time quantitative PCR conditions for ICAM-1 are anneal temperature at 61 ℃,0.4?g of cDNA and concentration of 150?mol/L each primer in the final reaction.There are no interaction among above factors.Conclusion Orthogonal design is a feasible,quick and economical method to optimize real-time quantitative PCR conditions.