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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
7
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pubmed:dateCreated |
2008-6-11
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pubmed:abstractText |
Vascular function and angiogenesis are regulated by vascular endothelial growth factor-A (VEGF). The purpose of this preliminary study was to address the following questions: Is VEGF expression in the patellar tendon more prevalent in patients with patellar tendinopathy than in individuals with normal, pain-free patellar tendons? Which cell populations express VEGF in normal and tendinopathic tendon? Is there a difference in symptom duration between VEGF+ and VEGF- tendons? We collected patellar tendon tissue from 22 patients undergoing open débridement of the patellar tendon and from 10 patients undergoing intramedullary nailing of the tibia. VEGF expression was assessed immunohistochemically. Relevant inflammatory and repair cell types were immunolabeled. VEGF expression was absent from control tendons, but was present in a subset of patients with histopathological evidence of angiofibroblastic tendinosis. VEGF was expressed in the intimal layer of tendon vessels, but was absent in other cell types. Patients demonstrating VEGF expression in the patellar tendon had a shorter symptom duration (12 +/- 7.8 months) than patients with no detectable VEGF (32.8 +/- 23.5 months). VEGF may contribute to the vascular hyperplasia that is a cardinal feature of symptomatic tendinosis, particularly in cases with more recent onset.
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pubmed:commentsCorrections |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
AIM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1528-1132
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:volume |
466
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1598-604
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pubmed:dateRevised |
2009-11-18
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pubmed:meshHeading |
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pubmed:year |
2008
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pubmed:articleTitle |
VEGF expression in patellar tendinopathy: a preliminary study.
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pubmed:affiliation |
Vancouver Coastal Health Research Institute, Centre for Hip Health and Department of Medicine, University of British Columbia, 2660 Oak Street, Vancouver, BC, Canada, V6H 3Z6. ascott@interchange.ubc.ca
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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