Effect of Exercise on Circulating Endothelial Progenitor Cells in Microvascular Angina
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- Scalone Giancarla
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- De Caterina Alberto
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- Leone Antonio Maria
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- Tritarelli Alessandra
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- Mollo Roberto
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- Pinnacchio Gaetano
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- D’Amario Domenico
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- Lanza Gaetano Antonio
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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- Crea Filippo
- Department of Cardiovascular Medicine, Catholic University of the Sacred Heart
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Background: Circulating endothelial progenitor cells (EPCs) might limit endothelial dysfunction in patients with microvascular angina (MVA). Endothelial colony-forming cells (ECFCs; displaying the CD34+/KDR+/CD45– phenotype) are currently regarded as true EPCs. The aim of this study was to evaluate exercise-induced ECFC mobilization and platelet reactivity in patients with MVA or with obstructive coronary artery disease (CAD). Methods and Results: Exercise stress test (EST) was performed in 20 MVA patients, 20 CAD patients and 20 controls. Platelet reactivity was assessed before and after EST as formation of monocyte-platelet aggregates (MPAs) and CD41 platelet expression, without and with adenosine diphosphate (ADP) stimulation. ECFC number was measured before and 24h after EST. At rest, MPAs and CD41 platelet expression increased more with ADP in MVA patients (+71±11.0% and +37±7.5%, respectively), than in CAD patients (+37±8.6% and +19±4.5%, respectively) and controls (+29±3.5% and +21±3.1%, respectively; P<0.001 for both). At rest, ECFCs tended to be lower in CAD patients, compared to MVA patients and controls (4.1±5.0%, 7.2±6.0% and 7.3±7.0% cells/105, respectively; P=0.056). After EST, ECFCs increased less in MVA patients (+2.8±11) compared to CAD patients (+3.3±15; P<0.05) and controls (+7.4±24; P<0.01). Conclusions: In MVA patients, EST is able to blunt the peculiar increase of platelet reactivity to ADP present at rest; in contrast, no potential protective response of ECFCs to exercise was seen in these patients. (Circ J 2013; 77: 1777–1782)<br>
収録刊行物
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- Circulation Journal
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Circulation Journal 77 (7), 1777-1782, 2013
一般社団法人 日本循環器学会
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詳細情報 詳細情報について
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- CRID
- 1390282680080287232
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- NII論文ID
- 10031173759
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- NII書誌ID
- AA11591968
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- COI
- 1:STN:280:DC%2BC3srisVGgsA%3D%3D
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- ISSN
- 13474820
- 13469843
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- PubMed
- 23558828
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- 使用不可