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.
Artículo
en Chino
| WPRIM
| ID: wpr-233703
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:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Cirugía General
/
Terapéutica
/
ARN Mensajero
/
Células de la Médula Ósea
/
Regulación de la Expresión Génica
/
Factor de Necrosis Tumoral alfa
/
Isquemia Miocárdica
/
Antígenos CD34
/
Vasos Coronarios
/
Movilización de Célula Madre Hematopoyética
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
Idioma:
Chino
Revista:
Journal of Southern Medical University
Año:
2009
Tipo del documento:
Artículo
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