کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9157665 | 1172463 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Interferon-γ and interferon-γ receptor 1 and 2 gene polymorphisms and restenosis following coronary stenting
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موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
کاردیولوژی و پزشکی قلب و عروق
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چکیده انگلیسی
In a recent study, analysis of gene expression in atherectomy specimens derived from restenotic coronary lesions revealed 223 differentially expressed genes. Thirty-seven of these genes indicated activation of interferon- (IFN-) γ signaling in neointimal smooth muscle cells. Moreover, genetic disruption of IFN-γ signaling in a mouse model of restenosis significantly reduced the vascular proliferative response. Thus, IFN-γ is assumed to play an important role in the control of tissue proliferation during neointima formation. We hypothesized that genetic variants of IFN-γ and its receptor subunits are involved in upregulation of IFN-γ related genes in neointimal tissue of patients that develop in-stent restenosis. Polymorphisms in the genes encoding for IFN-γ (IFNG T874A) and its receptors 1 (IFNGR1 C-56T) and 2 (IFNGR2 A839G) were tested for their association with restenosis. IFNG T874A, IFNGR1 C-56T and IFNGR2 A839G genotypes were determined in a consecutive series of patients (n = 2591) that had been treated with coronary stents. Follow-up angiography 6 months after stent implantation was performed in 76.8% of the patients. Genotyping was performed with PCR-based methods. IFNG T874A, IFNGR1 C-56T and IFNGR2 A839G genotypes were not associated with the incidence of angiographic and clinical restenosis (P > 0.23). Moreover, there was no association between IFNG, IFNGR1 and IFNGR2 genotypes and the combined incidence of death form any cause and non-fatal myocardial infarction during the first 12 months following the intervention (P > 0.61). Thus, this study does not support a clinically relevant role of the studied polymorphisms in the processes leading to in-stent restenosis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atherosclerosis - Volume 182, Issue 1, September 2005, Pages 145-151
Journal: Atherosclerosis - Volume 182, Issue 1, September 2005, Pages 145-151
نویسندگان
K. Tiroch, N. von Beckerath, W. Koch, J. Lengdobler, A. Joost, A. Schömig, A. Kastrati,