Bone marrow stem cell mobilization to the peripheral blood and tumor necrosis factor-alpha expression in ischemic myocardium in rabbit models of hibernating myocardium / 南方医科大学学报
Journal of Southern Medical University
; (12): 711-713, 2009.
Article
em Zh
| WPRIM
| ID: wpr-233703
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the changes in peripheral blood bone marrow stem cells and tumor necrosis factor-alpha gene expression in the ischemic myocardium in rabbit models of hibernating myocardium.</p><p><b>METHODS</b>Twenty-four male Japanese white rabbits were randomized into 4 groups, including a sham-operated group and 3 model groups with hibernating myocardium induced by partial ligation of the left anterior descending coronary artery. The percentage of CD34-positive cells in the peripheral blood was evaluated by flow cytometry, and TNF-alpha mRNA expression in the ischemic myocardium was determined by real-time RT-PCR in the 3 model groups (at 3, 7, or 28 days after the operation) and in the sham-operated group.</p><p><b>RESULTS</b>In rabbits with partial ligation of the left anterior descending coronary artery, the percentage of CD34-positive cells in the peripheral blood and myocardial TNF-alpha mRNA expression were significantly increased at 3 and 7 days after the operation in comparison with those in the sham-operated group and those at 28 days postoperatively (P<0.01). No significant differences were found in the percentage of CD34 positive cells or myocardial TNF-alpha mRNA expression between the sham-operated group and the rabbits 28 days after the coronary artery ligation (P>0.05).</p><p><b>CONCLUSION</b>Bone marrow stem cell can be mobilized into the peripheral blood in rabbit hibernating myocardium model possibly by increasing TNF-alpha gene expression in the ischemic myocardium.</p>
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Cirurgia Geral
/
Terapêutica
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RNA Mensageiro
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Células da Medula Óssea
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Regulação da Expressão Gênica
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Fator de Necrose Tumoral alfa
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Isquemia Miocárdica
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Antígenos CD34
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Vasos Coronários
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Mobilização de Células-Tronco Hematopoéticas
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
Zh
Revista:
Journal of Southern Medical University
Ano de publicação:
2009
Tipo de documento:
Article