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Erschienen in: The International Journal of Cardiovascular Imaging 4/2013

01.04.2013 | Original Paper

Sustained therapeutic perfusion outside transplanted sites in chronic myocardial infarction after stem cell transplantation

verfasst von: Pablo Maureira, Pierre-Yves Marie, Yihua Liu, Fengxu Yu, Sylvain Poussier, Fatiha Maskali, Frederique Groubatch, Gilles Karcher, Nguyen Tran

Erschienen in: The International Journal of Cardiovascular Imaging | Ausgabe 4/2013

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Abstract

This study aimed at comparing long-term variations in the perfusion of chronic myocardial infarction (MI) areas after local injections of autologous bone marrow stem cells (BMSCs). 14 coronary ligated rats with transmural chronic MI (4 months) were used: a control group (n = 7) versus a treated group (n = 7) in which 111In labeled-BMSCs were directly engrafted on MI areas. By using 111In/99mTc SPECT and Sestamibi gated-SPECT,. left ventricle perfusion and function were monitored in all animals by serial 99mTc-Sestamibi pinhole gated-SPECT over a period of 6 months. Post-therapeutic myocardial perfusion improved as early as 48 h following injection in the 2 groups. This benefice was sustained during the 6-month follow-up in the non-engrafted MI-areas from treated rats (at 6-months: +10 ± 5 %), whereas the engrafted ones, as well as the MI areas from control rats, exhibited progressive deterioration over time (at 6-months: −9 ± 10 % and −5 ± 3 %, respectively). Perfusion enhancement of the chronic MI areas treated by BMSCs transplantation is: (1) marked in the following days, presumably because of an unspecific inflammatory reaction, and (2) sustained over the long term but only outside the sites of cell engraftment, suggesting a distant paracrine effect of transplanted cells.
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Metadaten
Titel
Sustained therapeutic perfusion outside transplanted sites in chronic myocardial infarction after stem cell transplantation
verfasst von
Pablo Maureira
Pierre-Yves Marie
Yihua Liu
Fengxu Yu
Sylvain Poussier
Fatiha Maskali
Frederique Groubatch
Gilles Karcher
Nguyen Tran
Publikationsdatum
01.04.2013
Verlag
Springer Netherlands
Erschienen in
The International Journal of Cardiovascular Imaging / Ausgabe 4/2013
Print ISSN: 1569-5794
Elektronische ISSN: 1875-8312
DOI
https://doi.org/10.1007/s10554-012-0147-9

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