Document Detail


Characterization of the inhibition of vein graft intimal hyperplasia by a biodegradable vascular stent.
MedLine Citation:
PMID:  20839075     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Characterization of biodegradable stent vein graft thickening. Polydioxanone vascular sutures (PDSs) were used in a biodegradable arteriovenous bypass model. Twenty-four rabbits underwent carotid interposition bypass via ipsilateral jugular vein. One half received the stent (PDS group) and the remaining half a simple vein graft (controls). Group subsets received external stent removal or sham-control exploration at 4 and 12 weeks. At 4 and 12 weeks, the PDS group had significantly less medial and intimal thickening than the control group (P < 0.05), and there were fewer proliferating smooth muscle cells and extra cellular matrix formation than the control group at every interval. At 12 weeks, partial stent degradation occurred without deleterious effects. Furthermore proliferating cell nuclear antigen (PCNA), angiotensin type 1 receptor (AT1R), and transforming growth factor beta 1 (TGF-β1) levels were significantly lower than the control group. The external stent inhibited medial and intimal hyperplasia, an effect that remains after the material has completely degraded. This PDS stent is feasible option for vein grafts.
Authors:
Qingjun You; Liang Duan; Feng Wang; Xiaodong Du; Mingdi Xiao
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cell biochemistry and biophysics     Volume:  59     ISSN:  1559-0283     ISO Abbreviation:  Cell Biochem. Biophys.     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9701934     Medline TA:  Cell Biochem Biophys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  99-107     Citation Subset:  IM    
Affiliation:
Cardiothoracic Surgery Department, Suzhou University Affiliated No. 4 Hospital, WuXi, 214062, Jiangsu, People's Republic of China, yooufriend@yahoo.com.cn.
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