Protective effect of atorvastatin on acute systemic inflammation-induced endothelial dysfunction in hypercholesterolaemic subjects.

Abstract:

AIMS:Recent studies suggest an association between acute inflammation and deterioration of arterial function. The effect of acute inflammation on endothelial function and the role of treatment with statins have not been investigated in subjects with dyslipidaemia. METHODS AND RESULTS:In this randomized, placebo-controlled, double-blind study, we generated a transient systemic inflammation by Salmonella typhi vaccination in 50 volunteers with mild hypercholesterolaemia after 4 days of treatment with atorvastatin 40 mg or placebo once daily. Endothelium-dependent flow-mediated dilation (FMD) of the brachial artery and circulating levels of endothelial and inflammatory markers were measured before and 8 h after the vaccine. Vaccination produced a decline on FMD at 8 h (absolute decrease of 2.55%, P = 0.001), indicating an unfavourable effect on endothelial function. In contrast, in atorvastatin-treated subjects, FMD was preserved after vaccination (decrease of 0.15%, P = 0.005 vs. placebo). The vaccination-induced decline in plasma level of nitric oxide metabolites (by 6.0 micromol/L, P = 0.007) and antioxidant capacity (by 20.6 micromol/L, P = 0.001) in the placebo group were completely abolished by atorvastatin (P = 0.038 and P = 0.005, respectively, vs. placebo). In contrast, atorvastatin had no significant effect on cytokine levels. CONCLUSION:Acute inflammation is aetiologically associated with the deterioration of vasomotor and systemic endothelial function in hypercholesterolaemic patients. Atorvastatin effectively abrogates these deleterious effects.

journal_name

Eur Heart J

journal_title

European heart journal

authors

Vlachopoulos C,Aznaouridis K,Dagre A,Vasiliadou C,Masoura C,Stefanadi E,Skoumas J,Pitsavos C,Stefanadis C

doi

10.1093/eurheartj/ehm247

subject

Has Abstract

pub_date

2007-09-01 00:00:00

pages

2102-9

issue

17

eissn

0195-668X

issn

1522-9645

pii

ehm247

journal_volume

28

pub_type

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