Document Detail


Performance of a Modified Rabbit Model of Abdominal Aortic Aneurysm Induced by Topical Application of Porcine Elastase: 5-Month Follow-up Study.
MedLine Citation:
PMID:  23280313     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: To modify the method for creating an abdominal aortic aneurysm in rabbits, and to study its performance. MATERIALS AND METHODS: A total of 24 New Zealand white rabbits were induced topically with 10 μl of porcine elastase (0, 0.1, 5 and 10 units μl(-1)) to define the optimal concentration (groups A-D). Twelve aneurysms were induced with 10 units μl(-1) of 10 μl elastase to serve as a follow-up group (group E) to serve as a follow-up. A 1.5-cm aortic segment was isolated and induced with elastase solution for 30 min. RESULTS: All animals in groups D and E developed AAA by day 5. Aneurysms in Group E were stable over 100 days. Partial destruction to disappearance of elastic lamellae and smooth muscle cells (SMCs) was seen in elastase-treated animals by day 5. Regenerated elastin and proliferated SMCs were present in group E. Matrix metalloproteinases 2 and 9 and RAM11 showed strong expression in group D, but expression decreased in group E after day 15. CONCLUSIONS: The rabbit AAA model induced via topical application of porcine elastase at 10 units μl(-1) for 30 min appears easy and simple, with shorter induction and more rapid aortic dilation. The model is stable over 100 days and is useful to study the formation and progress of AAAs.
Authors:
Y Bi; H Zhong; K Xu; Y Ni; X Qi; Z Zhang; W Li
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-29
Journal Detail:
Title:  European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery     Volume:  -     ISSN:  1532-2165     ISO Abbreviation:  Eur J Vasc Endovasc Surg     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-1-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9512728     Medline TA:  Eur J Vasc Endovasc Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Affiliation:
Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang 110001, China; Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, China.
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