| Statin treatment is not associated with consistent alterations in inflammatory status of carotid atherosclerotic plaques: a retrospective study in 378 patients undergoing carotid endarterectomy. | |
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MedLine Citation:
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PMID: 16809559 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: Anti-inflammatory qualities are held partially responsible for the reduction of cardiovascular events after statin treatment. We examined the phenotype of carotid atherosclerotic plaques harvested during carotid endarterectomy in relation to the previous use of different statins prescribed in clinical practice. METHODS: Three hundred and seventy-eight patients were included. Atherosclerotic plaques were harvested, immunohistochemically stained and semiquantitively examined for the presence of macrophages (CD68), smooth muscle cells, collagen and fat. Adjacent atherosclerotic plaques were used to study protease activity and interleukin levels. Patients' demographics were recorded and blood samples were stored. RESULTS: Serum cholesterol, low-density lipoprotein, apolipoprotein B, and C-reactive protein levels were lower in patients treated with statins compared with patients without statin treatment. Atheromatous plaques were less prevalent in patients receiving statins compared with patients without statin therapy (29% versus 42%, P=0.04). An increase of CD68 positive cells was observed in patients receiving statins compared with nonstatin treatment (P=0.05). This effect was specifically related to atorvastatin treatment. In patients treated with atorvastatin, the increased amount of CD68 positive cells were not associated with increased protease activity. In contrast, a dose-dependent decrease in protease activity was shown in the atorvastatin group. Interleukin 6 expression was lower in plaques obtained from patients treated with statins (P=0.04). CONCLUSIONS: Statin use may exert pleiotropic effects on plaque phenotype. However, not the presence of macrophages but activation with subsequent protease and cytokine release may be attenuated by statin use. |
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Authors:
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Bart A N Verhoeven; Frans L Moll; Johan A F Koekkoek; Allard C van der Wal; Dominique P V de Kleijn; Jean Paul P M de Vries; Jan H Verheijen; Evelyn Velema; Els Busser; Arjan Schoneveld; Renu Virmani; Gerard Pasterkamp |
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Publication Detail:
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Type: Journal Article Date: 2006-06-29 |
Journal Detail:
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Title: Stroke; a journal of cerebral circulation Volume: 37 ISSN: 1524-4628 ISO Abbreviation: Stroke Publication Date: 2006 Aug |
Date Detail:
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Created Date: 2006-07-25 Completed Date: 2006-08-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0235266 Medline TA: Stroke Country: United States |
Other Details:
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Languages: eng Pagination: 2054-60 Citation Subset: IM |
Affiliation:
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Department of Vascular Surgery, University Medical Centre Utrecht, Utrecht, The Netherlands. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Antigens, CD
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metabolism Antigens, Differentiation, Myelomonocytic / metabolism Atherosclerosis / drug therapy*, metabolism, pathology*, surgery Carotid Arteries / drug effects, metabolism, pathology Carotid Artery Diseases / drug therapy*, metabolism, pathology*, surgery Cytokines / antagonists & inhibitors Dose-Response Relationship, Drug Endarterectomy, Carotid* Heptanoic Acids / therapeutic use Humans Hydroxymethylglutaryl-CoA Reductase Inhibitors / administration & dosage, therapeutic use* Immunohistochemistry Inflammation / pathology* Macrophages / metabolism, pathology Peptide Hydrolases / drug effects, metabolism Phenotype Pravastatin / therapeutic use Pyrroles / therapeutic use Retrospective Studies Simvastatin / therapeutic use |
| Chemical | |
Reg. No./Substance:
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0/Antigens, CD; 0/Antigens, Differentiation, Myelomonocytic; 0/CD68 antigen, human; 0/Cytokines; 0/Heptanoic Acids; 0/Hydroxymethylglutaryl-CoA Reductase Inhibitors; 0/Pyrroles; 110862-48-1/atorvastatin; 79902-63-9/Simvastatin; 81093-37-0/Pravastatin; EC 3.4.-/Peptide Hydrolases |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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