Abstract
Statin reduces cerebrovascular events independent of its cholesterol lowering effect. We hypothesized that statin inhibits early atherosclerotic change in common carotid artery (CCA), and investigated its effect on lectin-like oxidized-LDL receptor-1 (LOX-1) and monocyte chemoattractant protein-1 (MCP-1) expression, both of which are early atherosclerotic markers. Stroke-prone spontaneous hypertensive rats (SHR-SP) of 8 weeks old were orally treated with vehicle or simvastatin (20mg/kg) daily. After 4 weeks of simvastatin or vehicle treatment, or 2 weeks of vehicle and 2 weeks of simvastatin treatment, CCA was removed. LOX-1 and MCP-1 expression as well as macrophage infiltration were histologically investigated. Lipid deposition was also investigated by Sudan III staining. Simvastatin groups showed significantly smaller amount of lipid deposition and LOX-1 and MCP-1 expression, independent of serum lipid levels. Macrophage infiltration was also decreased. Reduction of cerebrovascular events by statins may be brought by the direct inhibition of atherosclerotic change.
Keywords: Atherosclerosis, carotid artery, hyperlipidemia, lectin-like oxidized-LDL receptor-1, lipid deposition, macrophage infiltration, monocyte chemoattractant protein-1, statin
Current Neurovascular Research
Title: Macrophage Infiltration, Lectin-Like Oxidized-LDL Receptor-1, and Monocyte Chemoattractant Protein-1 are reduced by Chronic HMG-CoA Reductase Inhibition
Volume: 4 Issue: 4
Author(s): Atsushi Tsuchiya, Shoko Nagotani, Takeshi Hayashi, Kentaro Deguchi, Yoshihide Sehara, Toru Yamashita, HanZhe Zhang, Violeta Lukic, Tatsushi Kamiya and Koji Abe
Affiliation:
Keywords: Atherosclerosis, carotid artery, hyperlipidemia, lectin-like oxidized-LDL receptor-1, lipid deposition, macrophage infiltration, monocyte chemoattractant protein-1, statin
Abstract: Statin reduces cerebrovascular events independent of its cholesterol lowering effect. We hypothesized that statin inhibits early atherosclerotic change in common carotid artery (CCA), and investigated its effect on lectin-like oxidized-LDL receptor-1 (LOX-1) and monocyte chemoattractant protein-1 (MCP-1) expression, both of which are early atherosclerotic markers. Stroke-prone spontaneous hypertensive rats (SHR-SP) of 8 weeks old were orally treated with vehicle or simvastatin (20mg/kg) daily. After 4 weeks of simvastatin or vehicle treatment, or 2 weeks of vehicle and 2 weeks of simvastatin treatment, CCA was removed. LOX-1 and MCP-1 expression as well as macrophage infiltration were histologically investigated. Lipid deposition was also investigated by Sudan III staining. Simvastatin groups showed significantly smaller amount of lipid deposition and LOX-1 and MCP-1 expression, independent of serum lipid levels. Macrophage infiltration was also decreased. Reduction of cerebrovascular events by statins may be brought by the direct inhibition of atherosclerotic change.
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Tsuchiya Atsushi, Nagotani Shoko, Hayashi Takeshi, Deguchi Kentaro, Sehara Yoshihide, Yamashita Toru, Zhang HanZhe, Lukic Violeta, Kamiya Tatsushi and Abe Koji, Macrophage Infiltration, Lectin-Like Oxidized-LDL Receptor-1, and Monocyte Chemoattractant Protein-1 are reduced by Chronic HMG-CoA Reductase Inhibition, Current Neurovascular Research 2007; 4 (4) . https://dx.doi.org/10.2174/156720207782446333
DOI https://dx.doi.org/10.2174/156720207782446333 |
Print ISSN 1567-2026 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5739 |
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