Effects of tongxinluo on the neointima formation and expression of inflammatory cytokines in rats after carotid artery balloon injury
| Autor: | En-Hui Yao, Chang-Sheng Xu, Hua-Jun Wang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Neointima
Male Pathology medicine.medical_specialty inflammatory cytokine medicine.medical_treatment Blotting Western Traditional Chinese medicine Pharmacology Real-Time Polymerase Chain Reaction Nitric oxide Proinflammatory cytokine Rats Sprague-Dawley chemistry.chemical_compound tongxinluo medicine Animals Pharmacology (medical) RNA Messenger Chemokine CCL2 Dose-Response Relationship Drug business.industry Monocyte Carotid artery injury Intercellular Adhesion Molecule-1 Rats Blot Disease Models Animal medicine.anatomical_structure Cytokine chemistry Gene Expression Regulation Cytokines neointima formation Endothelium Vascular Inflammation Mediators business Carotid Artery Injuries Artery Research Article Drugs Chinese Herbal |
| Zdroj: | Indian Journal of Pharmacology |
| ISSN: | 1998-3751 0253-7613 |
| Popis: | Objective: Tongxinluo (TXL) is a traditional Chinese medicine (TCM). It is used to treat coronary heart disease and atherosclerosis. We investigated the effects of TXL on the neointima formation and expression of inflammatory cytokines in rats after carotid artery balloon injury. Materials and Methods: Male Sprague-Dawley rats were randomly divided into four groups: sham operation group (Sham, n = 15), balloon injury group treated with vehicle (Control, n = 15), TXL low-dose group treated with TXL of 0.5 g/kg/d (TXL-L, n = 15), and TXL high-dose group treated with TXL of 1.0 g/kg/d (TXL-H, n = 15). TXL was given by gavage daily. 14 days after injury’, the levels of serum nitric oxide (NO), endothelin-1 (ET-1), monocyte chemoattractant protein-1 (MCP-1), and soluble intercellular adhesion molecule-1 (sICAM-1) were evaluated. The morphology of carotid artery tissue was observed with hematoxylin-eosin staining. Expressions of MCP-1 and ICAM-1 in the artery were detected by real-time polymerase chain reaction (RT-PCR) and western blotting. Results: 14 days after injury, a significant increase in concentrations of serum ET-1, MCP-1, and sICAM-1 (P < 0.05), as well as a significant decrease in NO serum level were observed in rats subjected to artery injury compared to the sham rats (P < 0.05). TXL significantly decreased ET-1, MCP-1 and sICAM-1 serum levels (P < 0.05), whereas significantly increased NO serum level compared with the control (P < 0.05). TXL significantly reduced the neointimal thickening at day14 after injury (P < 0.05). In addition, TXL significantly reduced mRNA and protein expressions of ICAM-1 and MCP-1 in injured artery (P < 0.05). Conclusions: This study demonstrates that TXL is effective in improving endothelial function, attenuating neointimal formation of artery after balloon injury, and reducing expression of inflammatory cytokine MCP-1 and ICAM-1. It may be a useful agent for protecting the artery against injury. |
| Databáze: | OpenAIRE |
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