Objective　To compare the effects of early and long-term treatment with captopril on clinical outcome between elder patients (65-75 years old) and younger patients (＜ 64 years old) suffering from acute myocardial infarction (AMI). 　Methods　In a randomized trial, 822 patients with a first AMI were treated with captopril at initial dosage of 6.25 mg and adjusted to 25 mg t.i.d according to blood pressure (209 younger patients, 269 elder patients) and conventional treatment (131 younger patients, 213 elder patients). Survival rate of the four groups was calculated with Kaplan-Meier method. 　Results　The survival of treatment group was correlated significantly with age during hospitalization (P=0.0002). Eight patients in younger treatment group and 10 patients in younger control group (3.83% vs 7.63%, P＞0.05), 25 patients in elder treatment group and 52 patients in elder control group (9.29% vs 24.41%, relative risk = 0.37, 95% CI 0.29-0.48, P＜0.0001) were died. During follow-up period, the survival was however not related to the age (P＞0.05), and both the elder and younger patients had better survival (all P＜0.01 ) and lower cardiac events (all P＜0.01) during captopril treatment. 　Conclusions　 Captopril exerts less effect on the younger patients but more effect on the elder patients during hospitalization after AMI. Long-term captopril had no difference between the youngers and the elders in prognosis.

AIM:Effects of anatotensin Ⅱ on type Ⅰ collagen synthesis and its mRNA expansion in cultured vascular adventitial fibroblasts. METHODS: Vascular adventitial fibroblasts (VAF)were isolated, cultured from rat thoracic aorta by explant method. ELISA was used to study type Ⅰ collagen synthesis and competihve RT - PCR was employed to detect its mRNA expression after angiotensin Ⅱ administration. RESULTS: Angiontensin Ⅱ caused a dose dependent increase of type Ⅰ collagen synthesis and its mRN expression in VAF. CONCLUSION: The results support that angiotensin Ⅱ is an important factor controlling collagen metabolism of VAF and VAF may play an im- portant role in vascular remodelling of hypertension.

Objective To compare the effects of early and long term treatment with captopril on clinical outcome between elder patients (65 75 years old) and younger patients (0 05), 25 patients in elder treatment group and 52 patients in elder control group (9 29% vs 24 41%, relative risk = 0 37, 95% CI 0 29 0 48, P 0 05), and both the elder and younger patients had better survival (all P

Aim:To compare the effect of cilazapril and metoprolol on the compliance o f brachial artery in essential hypertension(EH). Methods:Compliance of brachial artery was determined by Pulsed Doppl er techniques. Brachial artery diameter(Dd),flow velocity(Vm),volumic blood flow (Q) and the distensibility(Dis) increased markedly,the resistance(R) used as the indexes of compliance of brachial artery. Results:Sixty seven EH were divided into two groups(A,B) random ly. Group A were treated with Cilazaril,Group B with Metoprolol. Aft er 6 months treatment, BP in all the patients decreased. In Group A,the Dd,Vm,Q and Dis increased markedly,but R of brachial artery decreased obviously. In group B,no obvious changes of branchial artery were found. Conclusion:Cilazapril may improve the compliance of brachial artery partially.