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- W1970862512 abstract "Postangioplasty restenosis is a multifactorial process and involves mechanisms such as inflammation and stimulation of the expression of growth factors. Lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) can modify inflammatory responses by hydrolyzing phospholipids with shortened and/or oxidized sn-2 residues. In this study, we tested a hypothesis that adenovirus-mediated Lp-PLA(2) gene transfer can reduce restenosis in rabbits. Aortas of cholesterol-fed NZW rabbits were balloon-denuded and intra-arterial gene transfer was performed using Dispatch catheter with Lp-PLA(2) or LacZ adenoviruses (1.15 x 10(10)pfu). Intima/media ratio (I/M), histology and cell proliferation were analyzed. Two weeks after the gene transfer I/M in the LacZ-transduced control group was 0.45+/-0.05 but Lp-PLA(2) gene transfer reduced I/M to 0.25+/-0.03. At four weeks time point I/M in the Lp-PLA(2) group (0.34+/-0.05) was also lower than in the LacZ group (0.53+/-0.06). Plasma Lp-PLA(2) activity was increased in the Lp-PLA(2) group (48.2+/-4.2) as compared to the LacZ group (33.6+/-3.51) at two weeks time point. Transgene expression was detected in the arterial wall two and four weeks after the procedure. Apoptosis was higher in the control vessels than in the Lp-PLA(2) group at two weeks time point. In conclusion, local adenovirus-mediated Lp-PLA(2) gene transfer resulted in a significant reduction in neointima formation in balloon-denuded rabbit aorta and may be useful for the prevention of restenosis after arterial manipulations." @default.
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- W1970862512 date "2005-03-01" @default.
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- W1970862512 title "Intravascular adenovirus-mediated lipoprotein-associated phospholipase A2 gene transfer reduces neointima formation in balloon-denuded rabbit aorta" @default.
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- W1970862512 doi "https://doi.org/10.1016/j.atherosclerosis.2004.10.025" @default.
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