OBJECTIVE:To investigate the possible mechanism of metoprolol in reducing the mortality of acute myocardial infarction (AMI).METHODS:60 AMI subjects were randomly divided into two groups,the treatment group was administered with metoprolol besides the conventional therapy administered in the control group,the two groups were compared in respects of the occurrences of malignant arrhythmia and the relapse of myocardial infarction,QT divergency (QTd)and left ventricular remodeling (LVRM)indexes.RESULTS:Compared with the control group,the malignant arrhythmia and myocardial infarction relapse cases were significantly decreased in the treatment group(P

Objective To investigate the change of high sensitivity c-reaction protein( hs-CRP)on carotid artery plaque. Methods A total of 5 852 individuals were selected as our subjects who randomly stratified from the health examination survey participants in Tangshan Kailuan Company community during 2006 - 2007. A total of 5 440 people(age above 40 years old,free of stroke,transient ischemic attack(TIA)and myocardial infarction ) were qualified and enrolled in the final analysis. A questionnaire survey,blood biochemical analysis and carotid artery ultrasound examination were finished by trained medical staff. According to the hs-CRP 3 mg measurements at the first and third times health examinations,all subjects were divided into four groups,including continued decreasing group(hs-CRP < 3 mg/ L),decreasing group(hs-CRP decreased from≥3 mg/ L to < 3 mg/ L ),increasing group((hs-CRP increased from < 3 mg/ L to≥3 mg/ L)and continued high group((hs-CRP ≥3 mg/ L). Multiple logistic regression analysis was used to test the impact of change of hs-CRP on carotid artery plaque. Results Incidence of carotid artery plaques in continued decreasing, decreasing,increasing and continued high groups were 33. 6%(1 308 / 3 577),44. 7%(178 / 398),45. 1%(186 / 412)and 54. 9%(151 / 275),respectively. The dependent variable was named based on carotid artery plaque(1 = plaque and 0 = no plaque),and in dependent variable was named based on hs-CRP value change (0 = continued decreasing group;1 = decreasing group;2 = increasing group;3 = continued high group). Multiply factors logistic regression analysis showed that the risk of carotid artery plaques for women increased compared to decreasing group( RR = 1. 17,95% CI:1. 01 - 1. 35,P = 0. 035). After adjusting gender,age,smoking,low density lipoprotein cholesterol,fasting blood-glucose,baseline lg( hs-CRP)and body mass index,the risks of developing carotid artery plague in increasing group and continued high group were increased compared to decreasing group among the women and whole population(for all subject:RR = 1. 33,95% CI:1. 04 - 1. 70,P =0. 023;for women subject:RR = 1. 63,95% CI:1. 08 - 2. 46,P = 0. 021). Conclusion Increasing hs-CRP is a risk factors of incidence of carotid artery plaque possibly.

OBJECTIVE:To observe the efffect of Danhong injection on the endothelial function in patients with stable coronary heart disease(CHD).METHODS:In this randomized control study,82 CHD cases were randomly assigned to receive Danhong injection or Sterile Danshen injection powder by iv gtt.The endothelial function and the inflammation-related indexes in two groups were compared after 2-week treatment.RESULTS:As compared with before treatment,in Danhong group,the levels of NO and flow-mediated dilatation(FMD) were significantly up-regulated while the levels of vWF and CRP(C-reaction protein) were significantly down-regulated after treatment;however,no significant difference was noted in Sterile Danshen injection powder group in endothelial function and the inflammation-related indexes.There were significant differences between the two groups(P

OBJECTIVE:To observe the effects of gelodipine on plasma ghrelin level and endothelial function of blood vessels in patients with essential hypertension.METHODS:A total of 77 patients with essential hypertension were randomly divided into trial group(n=45)and control group (n=32).Both groups were given low sodium diet,proper exercise, weight reduction and oral diuretics,while the trial group was assigned to receive felodipine 5mg q.d additionally.The course of treatment was 8wk.Before and after the treatment,plasma levels of ghrelin and nitrous oxide(NO),endothelin(ET-1),and brachial artery flow-mediated dilatation(FMD)function were observed.RESULTS:Plasma levels of ghrelin and NO,and FMD were significantly increased (P0.05).CONCLUSION:Felodipine can increase plasma Ghrelin level meanwhile improving endothelial function of blood vessels in patients with essential hypertension.

OBJECTIVE: To confirm the feasibility of target-controlled infusion of midazolam on conscious sedation for patients undergoing combined spinalepidural anesthesia and the needed target-controlled blood concentration.METHODS: Sixty patients undergoing combined spinal-epidural anesthesia were subjected to target-controlled infusion of midazolam.The level of sedation of midazolam was evaluated applying OAA/S score and bispectral index(BIS).The correlation between target-controlled blood concentration(Cp) and BIS was determined.The Cp,BIS,MAP,HR and SpO2 at different OAA/S were observed. RESULTS: When OAA/S score was 3,the required target-controlled blood concentration of midazolam was(122.8? 20.8) ng? mL-1 in midazolam sedation patients.There was a good correction between BIS and Cp,and BIS=— 3.28Cp+ 355.22(r=— 0.862 5,P

Objective NAC therapy was used to observe the effect of TNF-?,hs-CRP,PaO2,PaCO2and lung function in patients with COPD,so as to evaluate the therapeutic effect. Methods 65 patients with COPD were recruited and the patients were randomly divided into 2 treatment groups:control group (n=31) and experimental group (n=34). Patients in the two groups received the conventional treatment of COPD in unchanged dosage for the duration of the study except stopping using antibotic drug after infection was resolved. NAC tablets were taken orally at a dose of 600mg once a day in experimental group. After 8 weeks treatment,we appraised lung function and the plasma level of TNF-?,hs-CRP,PaO2 and PaCO2. Results Compared with normal controls,the plasma levels of TNF-? and hs-CRP increased significantly. The higher level of those ,the higher lung function class was in 65 COPD patients,and there was significant effect(P

OBJECTIVE:To study the effect of percutaneous coronary intervention(PCI)and vein thrombolytic therapy on QT dispersion(QTd)after early recanalization of the infracted related artery(IRA)in order to provide the scientific reference for the comprehensive measures against acute ST-segment elevation after myocardial infarction(STEMI).METHODS:117patients with STEMI were selected within12hours after the onset,and then randomly divided into PCI group(56patients)and vein thrombolytic therapy group(61patients).QTd were determined before and24h after treatment.RESULTS:The recanal-ization rates in PCI and vein thrombolytic therapy group were100%and73.8%,respectively(P

OBJECTIVE:To observe the impact of allopurinol on heart function,endothelial function and indexes of inflammation in controlling hyperuricemia in patients with acute myocardial infarction(AMI).METHODS:A total of 98 patients with AMI complicated with hyperuricemia were randomized to treatment group(treated with allopurinol plus alimentary control)and control group(alimentary control alone)for 6wk.Heart function,endothelial function and inflammation indexes between 2 groups before and after treatment were observed.RESULTS:In treatment group,serum uric acid level were decreased significantly(t=2.317,P=0.046),LVEF and flow-mediated dilatation(FMD)function improved significantly(t=— 2.106,P=0.073;t=— 3.47,P=0.007),and C reactive protein level were significantly lower than in the control group(t=4.78,P=0.002).CONCLUSION:Allopurinol can decrease hyperuricemia level,improve endothelial dysfunction,heart function and inflammatory reactions.

0.1), but which were inhibited significantly in the left ventricular cardiac myocytes of the subjects with heart failure(P≤0.05). Both carvedilol and metoprolol exhibited no effect on eNOS activity in all the investigated cardiac myocytes. CONCLUSIONS: Nebivolol does no effect on eNOS activity of left ventricular cadiocytes in subjects or rats without hear failure but it can inhibit eNOS activity of cadiocytes in subjects or rats with heart failure so as to exert its beneficial clinical effect.

OBJECTIVE:To study the efficacy of Urokinase vs.Low Molecular Weight Heparin in the treatment of acute pulmonary thromboembolism.METHODS:A total of 35 patients with acute pulmonary thromboembolism who had no past history of heart and lung diseases were enrolled and randomly assigned to two groups following ultrasonography and pulmonary ventilation/perfusion scanning:15 were given thrombolysis therapy with urokinase,and 20 given anticoagulation therapy with low molecular weight heparin.Symptoms,arterial blood gas analysis,electrocardiogram,echocardiogram were compared in two groups before and after treatment.RESULTS:The patients receiving thrombolysis therapy had better improvement in symptoms,arterial blood gas index,echocardiogram and the pulmonary ventilation/perfusion scanning than in those receiving anticoagulation therapy(P