PMID- 17156650 OWN - NLM STAT- MEDLINE DCOM- 20080424 LR - 20181201 IS - 0376-2491 (Print) IS - 0376-2491 (Linking) VI - 86 IP - 34 DP - 2006 Sep 12 TI - [Inhibitory effect of irbesartan on restenosis after balloon angioplasty and mechanism thereof: experiment with rabbits]. PG - 2395-8 AB - OBJECTIVE: To investigate the inhibitory effect of irbesartan on the restenosis after balloon angioplasty and mechanism thereof. METHODS: Forty-eight Harbin white rabbits underwent balloon angioplasty at the left common carotid artery to establish models of restenosis (RS) and then were randomly divided into 3 groups of 8 rabbits: 7 d, 14 d, and 28 d to be fed with the diet with 35 mg/kg irbesartan till the day when the rabbits were to be killed, each group with 4 controls fed with normal diet At the scheduled days the rabbits were killed and their left common carotid arteries, livers, and kidneys were taken out to undergo morphological examination. The areas of the tunica intima, tunica media, and lumen of the common carotid artery were measured. Immunohistochemistry was used to detect the nuclear factor-kappaB p65 (NF-kappaB p65) and proliferating cell nuclear antigen (PCNA) protein. RT-PCR was used to detect the mRNA expression of inhibitor-kappaB (I-kappaB) and monocyte chemoattractant protein-1 (MCP-1). RESULTS: No abnormality was found in the specimens of liver and kidney. Measurement showed that the area of tunica intima of the 7 d irbesartan group was 0.34 mm(2) +/- 0.15 mm(2), significantly smaller than that of the controls (1.05 mm(2) +/- 0.38 mm(2), P < 0.05), and the area of arterial lumen of the 28 d group was 4.25 mm(2) +/- 0.29 mm(2), significantly larger than that of the controls (2.56 mm(2) +/- 1.02 mm(2), P < 0.05). Immunohistochemistry showed that the rates of NF-kappaB p65 positive cell and PCNA positive cell of the 7 d irbesartan group were both significantly lower than those of the controls (both P < 0.05). The mRNA expression of I-kappaB in the vascular wall of the 7 d irbesartan group was significantly lower than that of the controls. The mRNA expression levels of MCP-1 at different time points were all significantly lower than those of the corresponding controls (all P < 0.05). CONCLUSION: Irbesartan inhibits the RS after injury of arterial wall by balloon angioplasty via suppressing the activation of NF-kappaB p65 which controls the expression of I-kappaB and MCP-1. FAU - Wang, Jia-hong AU - Wang JH AD - Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China. FAU - Huang, Yong-lin AU - Huang YL FAU - Zhao, Min AU - Zhao M FAU - Cao, Feng-lin AU - Cao FL LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Yi Xue Za Zhi JT - Zhonghua yi xue za zhi JID - 7511141 RN - 0 (Biphenyl Compounds) RN - 0 (Chemokine CCL2) RN - 0 (I-kappa B Proteins) RN - 0 (NF-kappa B) RN - 0 (Proliferating Cell Nuclear Antigen) RN - 0 (RNA, Messenger) RN - 0 (Tetrazoles) RN - J0E2756Z7N (Irbesartan) SB - IM MH - Animals MH - Biphenyl Compounds/*therapeutic use MH - Carotid Artery, Common/drug effects/metabolism/pathology MH - Chemokine CCL2/genetics MH - Coronary Restenosis/*drug therapy/metabolism MH - Gene Expression MH - I-kappa B Proteins/genetics MH - Immunohistochemistry MH - Irbesartan MH - Male MH - NF-kappa B/biosynthesis MH - Proliferating Cell Nuclear Antigen/analysis MH - RNA, Messenger/genetics/metabolism MH - Rabbits MH - Random Allocation MH - Reverse Transcriptase Polymerase Chain Reaction MH - Tetrazoles/*therapeutic use EDAT- 2006/12/13 09:00 MHDA- 2008/04/25 09:00 CRDT- 2006/12/13 09:00 PHST- 2006/12/13 09:00 [pubmed] PHST- 2008/04/25 09:00 [medline] PHST- 2006/12/13 09:00 [entrez] PST - ppublish SO - Zhonghua Yi Xue Za Zhi. 2006 Sep 12;86(34):2395-8.