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- W2101615512 abstract "NF kappa B (NF-kappaB) is a ubiquitous transcription factor activated by various stimuli implicated in heart failure progression including reactive oxygen species (ROS), hypoxia, and inflammatory cytokines. Although NF-kappaB is involved in ischemic preconditioning, unstable angina pectoris, and atherogenesis, its role in heart failure has not been determined. Therefore, we investigated left ventricular remodeling in mice with a targeted deletion of the NF-kappaB subunit p50/NF-kappaB1 after myocardial infarction.p50 knockout (KO) and wild-type (WT) animals underwent coronary artery ligation. Transthoracic echocardiography was performed at days 0, 21, and 56 at midpapillary levels. Early mortality was significantly lower in KO than in WT animals. Moreover, p50 KOs exhibited significantly reduced ventricular dilatation over 8 wk compared to WT controls (end-systolic diameters by transthoracic echocardiography, WT vs. KO, 0.55+/-0.04 vs. 0.34+/-0.03 cm) and preserved left ventricular contractility. Collagen content and matrixmetalloproteinase (MMP) -9 expression were significantly lower in KO mice after myocardial infarction and may account for improved left ventricular remodeling.Absence of the NF-kappaB subunit p50 improves early survival and reduces left ventricular dilatation after myocardial infarction. NF-kappaB might therefore be an attractive target to treat heart failure." @default.
- W2101615512 created "2016-06-24" @default.
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- W2101615512 date "2006-07-12" @default.
- W2101615512 modified "2023-10-14" @default.
- W2101615512 title "Absence of NF‐κB subunit p50 improves heart failure after myocardial infarction" @default.
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- W2101615512 doi "https://doi.org/10.1096/fj.05-5133fje" @default.
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