Project description:We investigated the effect of 2 food-based dietary patterns and statin therapy on the transcriptome of the left anterior descending coronary artery of the Ossabaw pig.
Project description:This study investigates the role of endothelial cell (EC) gene expression in the focal origin of atherosclerosis. The EC transcriptome was profiled in multiple arterial regions of normal swine. Specifically, small amounts of EC RNA were isolated from 7 athero-susceptible and 6 athero-protected regions. The number of replicates for each site varied between 4 and 8. A total of 98 samples from 76 animals were used. For each sample, linearly amplified RNA (labeled with Cy5) was co-hybridized with pooled arterial reference RNA (labeled with Cy3) onto a custom-printed porcine oligo microarray (70-mers).
Project description:Bare-metal (BMS) and drug-eluting stents (DES) were implanted in pig coronary arteries with an overstretch during coronary angioplasty under optical coherence tomography guidance. Arteries subjected to plain old balloon angioplasty (POBA) alone served as controls. Stented/balloon dilated segments were harvested 1, 3, 7, 14 and 28 days post-intervention for proteomics analysis. At day 28 all stented arteries showed a neointima formation covering the stent struts. The evolved neointima was separated from the media and analysed in a separate proteomics analysis. In total, 31 samples were analysed for the media by LC-MS/MS (n=3 BMS/DES at each time-point 1, 3, 7 and 28 days; n=4 POBA early [day1-day3] and n=3 POBA late [day 14 - day28]). For the neointima a total of 14 samples were analysed (n=7 BMS, n=7 DES at 28 days) including the neointima of arteries of a second cohort with 4 samples each for BMS and DES day 28. The neointima samples were run in duplicates.