Cited by 239Renin-Angiotensin System StudiesEicosanoids and Hypertension PharmacologyCoagulation, Bradykinin, Polyphosphates, and Angioedema

Comparative effects of AT1-antagonism and angiotensin-converting enzyme inhibition on markers of inflammation and platelet aggregation in patients with coronary artery disease

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Schieffer, Bernhard, Bünte, Christoph, Witte, Jana, Hoeper, Kirsten, Böger, Rainer H., Schwedhelm, Edzard, Drexler, Helmut·2004·Journal of the American College of Cardiology

Abstract

Objectives We evaluated whether renin-angiotensin system (RAS) blockade attenuates cardiovascular events.Background Because inflammation and enhanced thrombogenesis are hallmarks of atherosclerosis, we assessed whether RAS inhibition elicits anti-inflammatory and anti-aggregatory effects.Methods Interleukin 6 (IL-6), high-sensitivity C-reactive protein (hsCRP), metalloprotease 9 (MMP-9), and interleukin 10 (IL-10) were determined in patients with coronary artery disease (CAD) and arterial hypertension six to eight weeks after coronary angioplasty (low-density lipoprotein serum levels <150 mg/dl). Patients were randomized double-blind to either 20 mg enalapril (ENAL, n = 27) or 300 mg irbesartan (IRB, n = 21) for 3 months. Blood samples were drawn at baseline and at three months. Thromboxane A2-induced platelet aggregation was determined turbidimetrically; urine bicyclo-prostaglandin E2 (PGE(2)) and inflammatory markers were measured by enzyme-linked immunosorbent assay technique.Results Both treatment regimens enhanced serum IL-10 levels (IRB p < 0.001, ENAL p < 0.03) and reduced serum MMP-9 protein (IRB p < 0.001, ENAL p < 0.05) and MMP-9 activity (IRB p < 0.005, ENAL p < 0.05). Only IRB reduced serum IL-6 and hsCRP levels significantly compared with baseline (p < 0.01), whereas ENAL did not (hsCRP p < 0.02 IRB vs. ENAL, p < 0.01 IRB vs. ENAL). Platelet aggregation was only reduced by IRB (p < 0.001, ENAL p < 0.06, IRB vs. ENAL p < 0.001) while urine PGE(2) levels remained unchanged.Conclusions Angiotensin-converting enzyme (ACE) inhibition and angiotensin II type 1 receptor (AT1) blockade reduced serum MMP-9 protein/activity to a similar extent, and only AT1 blockade reduced hsCRP, IL-6, and platelet aggregation in patients with CAD. Thus, AT1-blockade appears to exert stronger systemic anti-inflammatory and anti-aggregatory effects compared with ACE inhibition.

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Crossref · 10.1016/j.jacc.2004.03.065

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  1. Biasucci LM, Liuzzo G, Grillo RL, et al. Elevated levels of C-reactive protein at discharge in patients with unstable angina predict recurrent instability. Circulation 1999;99:855-60.

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Authors
Schieffer, B., Bünte, C., Witte, J., Hoeper, K., Böger, R. H., Schwedhelm, E., & Drexler, H.
Affiliations
  • Medizinische Hochschule Hannover (DE)
  • University Medical Center Hamburg-Eppendorf (DE)
Corresponding author
Schieffer, Bernhard
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
2004-07
Volume
44
Issue
2
Pages
362-368
ISSN
0735-1097 (ISSN-L)
OpenAlex
W2038844856
Cited by
239
References
45
Citations by year
2026: 3 · 2025: 5 · 2024: 3 · 2023: 7 · 2022: 4 · 2021: 7 · 2020: 10 · 2019: 3 · 2018: 3 · 2017: 6 · 2016: 9 · 2015: 6 · 2014: 7 · 2013: 11 · 2012: 16
FWCI
16.77
Type
journal article
Language
en
Open access
Locations
  • Journal of the American College of Cardiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Fondation Leducq
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Eicosanoids and Hypertension Pharmacology
  • Health Sciences › Medicine › Genetics › Coagulation, Bradykinin, Polyphosphates, and Angioedema
Keywords
renin-angiotensin system blockade, angiotensin II type 1 receptor antagonism, angiotensin-converting enzyme inhibition, irbesartan, enalapril, coronary artery disease, hypertension, inflammation, platelet aggregation, thrombus formation, C-reactive protein, interleukin-6, IL-10, MMP-9, thromboxane A2, prostaglandin E2, atherosclerosis, coronary angioplasty
MeSH terms
Irbesartan, Angiotensin-Converting Enzyme Inhibitors, Biphenyl Compounds, C-Reactive Protein, Coronary Artery Disease, Double-Blind Method, Enalapril, Female, Humans, Hypertension, Inflammation, Male, Middle Aged, Platelet Aggregation, Tetrazoles, Thromboxane A2, Dinoprostone, Biomarkers, Interleukin-6, Interleukin-10, Matrix Metalloproteinase 9, Angiotensin II Type 1 Receptor Blockers

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