Document Detail

Glycosaminoglycan-degrading enzymes in the varicose vein wall.
MedLine Citation:
PMID:  19078917     Owner:  NLM     Status:  In-Data-Review    
AIM: Mechanical properties of the vein wall are determined by extracellular matrix components, including glycosaminoglycans (GAGs). The aim of the study was to evaluate the activity of enzymes involved in GAGs degradation pathway in the wall of varicose veins and varicose veins complicated by thrombophlebitis, when compared to the wall of normal ones. METHODS: Normal, varicose veins and varicose veins complicated by thrombophlebitis were collected during surgical treatment of 10 patients. Activities of endoglycosidases, sulphatases and exoglycosidases were assessed according to colorimetric methods. RESULTS: Activities of neutral endoglycosidases degrading chondroitin-4-sulphate (C4S) and heparan sulphate (HS) were decreased, whereas activities of neutral endoglycosidases degrading dermatan sulphate and hyaluronic acid were increased in varicose veins and varicose veins complicated by thrombophlebitis. Activities of acidic endoglycosidases degrading C4S and HS were decreased in varicose veins and varicose veins complicated by thrombophlebitis, whereas activity of acidic endoglycosidases degrading chondroitin-6-sulphate was decreased only in varicose veins complicated by thrombophlebitis. Furthermore increased activities of arylosulphatase B, beta-N-acetylhexosaminidase and alfa-L-iduronidase were demonstrated in varicose veins, as well as in varicose veins complicated by thrombophlebitis. CONCLUSIONS: Changed activities of GAGs-degrading enzymes may contribute to previously reported changes in the content and molecular differentiation of GAGs in the wall of varicose veins that may play a role in the disease pathogenesis.
R Kowalewski; K Sobolewski; A Malkowski; M Gacko; I Rutkowska
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International angiology : a journal of the International Union of Angiology     Volume:  27     ISSN:  1827-1839     ISO Abbreviation:  Int Angiol     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-12-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8402693     Medline TA:  Int Angiol     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  529-35     Citation Subset:  IM    
Department of Vascular Surgery and Transplantology, Medical University of Bialystok, Bialystok, Poland.
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