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Modification of oxidative stress on gene expression profiling in the rat infarcted heart.

Abstract：

:Cardiac oxidative stress is developed following myocardial infarction (MI) particularly in the first week of MI. The influence of reactive oxygen species (ROS) on gene expression profiling and molecular pathways in the infarcted myocardium remains uncertain and is explored in the present study. Rats with MI were treated with or without antioxidants for 1 week. Normal rats served as controls. Cardiac oxidative stress and gene profiling were investigated. Compared to normal hearts, malondialdehyde, a marker of oxidative stress, was significantly increased in the infarcted myocardium, which was significantly suppressed by antioxidants. Microarray assay showed that over a thousand genes were differentially expressed in the infarcted myocardium. Antioxidants significantly altered the expression of 159 genes compared to untreated MI rats. Ingenuity pathway analysis indicated that multiple pathway networks were affected by antioxidants, including those related to cell movement, growth/development, death, and inflammatory/fibrotic responses. IPA further identified that these changes were primarily related to NFκB, p38 MAPK, and ERκ1/2 pathways. Hub genes were identified in the associated gene networks. This study reveals the gene networks associated with cardiac oxidative stress postMI. These observations indicate that ROS regulate various molecular and cellular actions related to cardiac repair/remodeling through multiple gene networks.

journal_name

Mol Cell Biochem

journal_title

Molecular and cellular biochemistry

authors

Zhao W,Zhao T,Chen Y,Qu Y,Gerling IC,Sun Y

doi

10.1007/s11010-013-1646-2

subject

Has Abstract

pub_date

2013-07-01 00:00:00

pages

243-53

issue

1-2

eissn

0300-8177

issn

1573-4919

journal_volume

379

pub_type

杂志文章

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