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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2001-5-11
pubmed:abstractText
The present study examined whether basic fibroblast growth factor (bFGF)-impregnated acidic gelatin hydrogel microspheres (AGHM) would enhance collateral development to the infarct area in dogs with coronary occlusion. Studies were conducted in 28 dogs with a 2-week occlusion of the proximal left anterior descending coronary artery (LAD). The dogs were divided into 3 groups according to treatment: Group A treated with bFGF-impregnated AGHM in the infarct area; Group B with free-form bFGF; Group C with AGHM alone. Coronary angiography (n=15; Group A, 7 dogs; Group B, 5 dogs; Group C, 3 dogs) and a regional myocardial blood flow study (n=13; Group A, 6 dogs; Group B, 4 dogs; Group C, 3 dogs) were repeated at a 2-week interval. Coronary angiography revealed that in Group A, antegrade flow in the LAD distal to the occlusion, which was assessed by Thrombolysis in Myocardial Infarction (TIMI) grade, was significantly increased after treatment. In contrast, in Groups B and C, the treatment did not change the flow grade in the LAD. In Group A, the regional myocardial blood flow in the collateral dependent area was significantly increased after treatment, and the regional myocardial blood flow reserve after adenosine injection was also significantly increased. These measurements remained after treatment in Groups B and C. The immunohistochemical study with factor VIII-related antigen revealed an increase of vascular density in the ischemic region in Group A. Intramyocardial delivery of bFGF-impregnated AGHM, but not free-form bFGF, improves the collateral circulation to the infarct area of a coronary occlusion in dogs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0047-1828
pubmed:author
pubmed:issnType
Print
pubmed:volume
65
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
439-44
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Intramyocardial delivery of basic fibroblast growth factor-impregnated gelatin hydrogel microspheres enhances collateral circulation to infarcted canine myocardium.
pubmed:affiliation
Second Department of Internal Medicine, Hirosaki University School of Medicine, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't