Design, manufacture and initial tests of a drug-eluting coronary stent
Abstract Introduction: A drug-eluting coronary stent is being developed at the National Institute of Cardiology of Mexico for the treatment of ischemic heart disease. Objective: To establish the best animal model for the tests, to show the advances in the drug-eluting stent prototype, to assess two drugs antiproliferative activity and histological results. Method: Smooth muscle cell culture tests were performed in order to assess sirolimus and paclitaxel antiproliferative properties. The drugs were encapsulated inside the polymeric matrix of the stents. Rabbits and pigs were used as animal models. Results: Sirolimus and paclitaxel showed an inhibitory effect, which was higher for the latter. Infrared spectroscopy and light and optical microscopy showed that the drug/polymer layer properly adhered to the stent. At a four-week follow-up, both animal models showed satisfactory clinical evolution and adequate histological response, although the porcine model was shown to be more suitable for future protocols. Conclusions: Preliminary tests of the drug-eluting stent provided bases for the development of a study protocol with an adequate number of pigs and with clinical angiographic and histopathological three-month follow-up.
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Academia Nacional de Medicina de México A.C.
2020
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oai:scielo:S0016-381320200004002762021-05-25Design, manufacture and initial tests of a drug-eluting coronary stentAbundes-Velasco,ArturoPadilla-Ibarra,JorgeJiménez-Rodríguez,Gian M.Farjat-Pasos,Julio I.Arias-Sánchez,Eduardo A.Damas-de los Santos,FélixMartínez-Ríos,Marco A.Molina-Méndez,Francisco J.Sánchez-Pérez,Tomás E.Arai-Ito,Marco M.Aceves-Díaz González,SebastiánRodríguez-Parra,David A.Aranda-Fraustro,AlbertoMasso-Rojas,Felipe A.Galaz-Méndez,RamsésPeña-Duque,Marco A. Drug-eluting coronary stent Sirolimus Coronary stent Abstract Introduction: A drug-eluting coronary stent is being developed at the National Institute of Cardiology of Mexico for the treatment of ischemic heart disease. Objective: To establish the best animal model for the tests, to show the advances in the drug-eluting stent prototype, to assess two drugs antiproliferative activity and histological results. Method: Smooth muscle cell culture tests were performed in order to assess sirolimus and paclitaxel antiproliferative properties. The drugs were encapsulated inside the polymeric matrix of the stents. Rabbits and pigs were used as animal models. Results: Sirolimus and paclitaxel showed an inhibitory effect, which was higher for the latter. Infrared spectroscopy and light and optical microscopy showed that the drug/polymer layer properly adhered to the stent. At a four-week follow-up, both animal models showed satisfactory clinical evolution and adequate histological response, although the porcine model was shown to be more suitable for future protocols. Conclusions: Preliminary tests of the drug-eluting stent provided bases for the development of a study protocol with an adequate number of pigs and with clinical angiographic and histopathological three-month follow-up.info:eu-repo/semantics/openAccessAcademia Nacional de Medicina de México A.C.Gaceta médica de México v.156 n.4 20202020-08-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0016-38132020000400276en10.24875/gmm.m20000418 |
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Abundes-Velasco,Arturo Padilla-Ibarra,Jorge Jiménez-Rodríguez,Gian M. Farjat-Pasos,Julio I. Arias-Sánchez,Eduardo A. Damas-de los Santos,Félix Martínez-Ríos,Marco A. Molina-Méndez,Francisco J. Sánchez-Pérez,Tomás E. Arai-Ito,Marco M. Aceves-Díaz González,Sebastián Rodríguez-Parra,David A. Aranda-Fraustro,Alberto Masso-Rojas,Felipe A. Galaz-Méndez,Ramsés Peña-Duque,Marco A. |
spellingShingle |
Abundes-Velasco,Arturo Padilla-Ibarra,Jorge Jiménez-Rodríguez,Gian M. Farjat-Pasos,Julio I. Arias-Sánchez,Eduardo A. Damas-de los Santos,Félix Martínez-Ríos,Marco A. Molina-Méndez,Francisco J. Sánchez-Pérez,Tomás E. Arai-Ito,Marco M. Aceves-Díaz González,Sebastián Rodríguez-Parra,David A. Aranda-Fraustro,Alberto Masso-Rojas,Felipe A. Galaz-Méndez,Ramsés Peña-Duque,Marco A. Design, manufacture and initial tests of a drug-eluting coronary stent |
author_facet |
Abundes-Velasco,Arturo Padilla-Ibarra,Jorge Jiménez-Rodríguez,Gian M. Farjat-Pasos,Julio I. Arias-Sánchez,Eduardo A. Damas-de los Santos,Félix Martínez-Ríos,Marco A. Molina-Méndez,Francisco J. Sánchez-Pérez,Tomás E. Arai-Ito,Marco M. Aceves-Díaz González,Sebastián Rodríguez-Parra,David A. Aranda-Fraustro,Alberto Masso-Rojas,Felipe A. Galaz-Méndez,Ramsés Peña-Duque,Marco A. |
author_sort |
Abundes-Velasco,Arturo |
title |
Design, manufacture and initial tests of a drug-eluting coronary stent |
title_short |
Design, manufacture and initial tests of a drug-eluting coronary stent |
title_full |
Design, manufacture and initial tests of a drug-eluting coronary stent |
title_fullStr |
Design, manufacture and initial tests of a drug-eluting coronary stent |
title_full_unstemmed |
Design, manufacture and initial tests of a drug-eluting coronary stent |
title_sort |
design, manufacture and initial tests of a drug-eluting coronary stent |
description |
Abstract Introduction: A drug-eluting coronary stent is being developed at the National Institute of Cardiology of Mexico for the treatment of ischemic heart disease. Objective: To establish the best animal model for the tests, to show the advances in the drug-eluting stent prototype, to assess two drugs antiproliferative activity and histological results. Method: Smooth muscle cell culture tests were performed in order to assess sirolimus and paclitaxel antiproliferative properties. The drugs were encapsulated inside the polymeric matrix of the stents. Rabbits and pigs were used as animal models. Results: Sirolimus and paclitaxel showed an inhibitory effect, which was higher for the latter. Infrared spectroscopy and light and optical microscopy showed that the drug/polymer layer properly adhered to the stent. At a four-week follow-up, both animal models showed satisfactory clinical evolution and adequate histological response, although the porcine model was shown to be more suitable for future protocols. Conclusions: Preliminary tests of the drug-eluting stent provided bases for the development of a study protocol with an adequate number of pigs and with clinical angiographic and histopathological three-month follow-up. |
publisher |
Academia Nacional de Medicina de México A.C. |
publishDate |
2020 |
url |
http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0016-38132020000400276 |
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