Introducing the first polymer-free leflunomide eluting stent.
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Introducing the first polymer-free leflunomide eluting stent. / Deuse, Tobias; Erben, Reinhold G; Ikeno, Fumiaki; Behnisch, Boris; Böger, Rainer; Connolly, Andrew J; Reichenspurner, Hermann; Bergow, Claudia; Pelletier, Marc P; Robbins, Robert C; Schrepfer, Sonja.
in: ATHEROSCLEROSIS, Jahrgang 200, Nr. 1, 1, 2008, S. 126-134.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Introducing the first polymer-free leflunomide eluting stent.
AU - Deuse, Tobias
AU - Erben, Reinhold G
AU - Ikeno, Fumiaki
AU - Behnisch, Boris
AU - Böger, Rainer
AU - Connolly, Andrew J
AU - Reichenspurner, Hermann
AU - Bergow, Claudia
AU - Pelletier, Marc P
AU - Robbins, Robert C
AU - Schrepfer, Sonja
PY - 2008
Y1 - 2008
N2 - BACKGROUND: We here describe the pharmacological characteristic, in vivo efficacy, and in vitro mechanisms of a polymer-free leflunomide eluting stent in comparison to its rapamycin-coated equivalent. METHODS: Stents were coated with 40 mM solutions of leflunomide (L) or rapamycin (R) or were left uncoated (BM). Neointima formation was assessed 6 weeks after implantation into Sprague Dawley rats by optical coherence tomographies (OCT) and histopathology. In vitro proliferation assays were performed using isolated endothelial and smooth-muscle-cells from Sprague Dawley rats to investigate the cell-specific pharmacokinetic effect of leflunomide and rapamycin. RESULTS: HPLC-based drug release kinetics revealed a similar profile with 90% of the drug being released after 12.1+/-0.2 (L) and 13.0+/-0.2 days (R). After 6 weeks, OCTs showed that in-stent luminal obliteration was less for the coated stents (L:12.0+/-9.4%, R:13.3+/-13.1%) when compared to identical bare metal stents (BM:26.4+/-4.7%; p
AB - BACKGROUND: We here describe the pharmacological characteristic, in vivo efficacy, and in vitro mechanisms of a polymer-free leflunomide eluting stent in comparison to its rapamycin-coated equivalent. METHODS: Stents were coated with 40 mM solutions of leflunomide (L) or rapamycin (R) or were left uncoated (BM). Neointima formation was assessed 6 weeks after implantation into Sprague Dawley rats by optical coherence tomographies (OCT) and histopathology. In vitro proliferation assays were performed using isolated endothelial and smooth-muscle-cells from Sprague Dawley rats to investigate the cell-specific pharmacokinetic effect of leflunomide and rapamycin. RESULTS: HPLC-based drug release kinetics revealed a similar profile with 90% of the drug being released after 12.1+/-0.2 (L) and 13.0+/-0.2 days (R). After 6 weeks, OCTs showed that in-stent luminal obliteration was less for the coated stents (L:12.0+/-9.4%, R:13.3+/-13.1%) when compared to identical bare metal stents (BM:26.4+/-4.7%; p
M3 - SCORING: Zeitschriftenaufsatz
VL - 200
SP - 126
EP - 134
JO - ATHEROSCLEROSIS
JF - ATHEROSCLEROSIS
SN - 0021-9150
IS - 1
M1 - 1
ER -