The antioxidative effects of long-term treatment are more pronounced for carvedilol than for atenolol in post-myocardial infarction patients.

Abstract:

:Oxidative stress might exert deleterious cardiovascular effects. The aim of the present study was to compare the antioxidative effects of carvedilol and atenolol. Levels of oxidized low-density lipoprotein cholesterol (ox-LDL), vitamin E, and thiobarbituric acid reactive substances (TBARS) were measured. In a prospective, open, and end-point-blinded study, 232 patients with an acute myocardial infarction (AMI) were randomized to receive either carvedilol or atenolol at equipotent doses, and the previously mentioned 3 parameters were measured at baseline and after 12 months of active treatment, with changes during the study period being compared both within and between the groups. Ox-LDL decreased in both treatment modalities, from 40.5 +/- 15.6 to 35.0 +/- 13.8 U/L, P = 0.0001, in the carvedilol group and from 40.3 +/- 16.5 to 37.4 +/- 13.1 U/L, P = 0.044, in the atenolol group, with a significant between-group difference in the changes (P = 0.036). The levels of vitamin E did not change during carvedilol treatment (31.0 +/- 10.2 vs 31.7 +/- 11.1 micromol/L), but it decreased marginally in the atenolol group (30.8 +/- 12.1 vs 27.2 +/- 9.1 micromol/L, P = 0.056), with a significant between-group difference (P = 0.008). No significant change in TBARS was observed between the carvedilol and atenolol groups (P = 0.454). These results indicate that carvedilol has a more pronounced antioxidative effect than atenolol in post-AMI patients, which might be of clinical importance.

journal_name

J Cardiovasc Pharmacol

authors

Jonsson G,Abdelnoor M,Seljeflot I,Arnesen H,Hostmark AT,Kjeldsen SE,Os I,Westheim AS

doi

10.1097/FJC.0b013e31802bdd8c

subject

Has Abstract

pub_date

2007-01-01 00:00:00

pages

27-32

issue

1

eissn

0160-2446

issn

1533-4023

pii

00005344-200701000-00005

journal_volume

49

pub_type

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