Artery Research

Volume 5, Issue 4, December 2011, Pages 145 - 145

6.3 OXIDATIVE STRESS AND INFLAMMATION: IMPLICATION IN ENDOTHELIAL DYSFUNCTION AND CARDIOVASCULAR AGING ON MURINE MODELS

Authors
S. Baron*1, T. Bedarida1, M.M. Strelcyn1, C.H. Cottart1, 2, F. Vibert1, G. Renault3, B. Saubamea4, E. Veissieres5, D. Henrion5, J.L. Beaudeux1, 2, V. Nivet-Antoine1, 6
1Groupe VIVA, EA4466, Université Paris Descartes, Paris, France
2APHP, Hôpital Pitié Salpêtrière-Charles Foix, Service de biochimie-hématologie Charles Foix, Ivry sur seine, France
3PIPA, Institut Cochin, Université Paris Descartes, Paris, France
4SCICM, Université Paris Descartes, Paris, France
5Laboratoire CNRS- INSERM 771 Faculté de médecine, Angers, France
6APHP, Laboratoire de Biochimie, Hôpital Européen Georges Pompidou, Paris, France
Available Online 29 November 2011.
DOI
10.1016/j.artres.2011.10.227How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

The aim of the study was to characterize cardiovascular aging with functional (Doppler) and molecular (RT-qPCR and immunohistochemistry quantifications) approaches using three murine models. Molecular studies on aorta (AO) and mesenteric arteries (MA) were used to explore the role of oxidative stress and inflammation. Time-induced aging model corresponded to 25 months-old C57Bl/6J mice feed with standard diet. Doppler exhibited a concentric left ventricle hypertrophy with a decreased aortic distensibility, and an increased aortic thickening. This model presented both a decreased Thioredoxin1 expression (AO and MA) and an increased NADPH oxidase (MA) expression. Inflammation markers were increased in MA (IL-1beta in MA and in AO (IL-6, TNF-alpha). Three months with High Fat and Protein Diet (HFPD) at 9 months induce a major hyperlipidemia. This model exhibited a dilated cardiopathy with both a decreased aortic distensibility and an increased aortic thickening. HFPD increased NADPH oxidase, IL1-beta and TNF-alpha expressions and decreased Thioredoxin1 expression (AO and MA). The mixed model corresponded to 25-months old C57Bl/6J mice feed for 3 months with HFPD. They presented a major cardiopathy with a decreased aortic distensibility, and exhibited both a major oxidative stress (increased NADPH oxidase and decreased Thioredoxin1 in AO and MA) and a major endothelial inflammation (increased IL-1beta, IL-6 and TNF-alpha in AO and MA). eNOS gene was not modify in any model. We conclude that NADPH oxidase and Thioredoxin1 seem to play a key role in the arterial aging process and might be interesting potential targets for therapeutics assays.

Journal
Artery Research
Volume-Issue
5 - 4
Pages
145 - 145
Publication Date
2011/11/29
ISSN (Online)
1876-4401
ISSN (Print)
1872-9312
DOI
10.1016/j.artres.2011.10.227How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - JOUR
AU  - S. Baron*
AU  - T. Bedarida
AU  - M.M. Strelcyn
AU  - C.H. Cottart
AU  - F. Vibert
AU  - G. Renault
AU  - B. Saubamea
AU  - E. Veissieres
AU  - D. Henrion
AU  - J.L. Beaudeux
AU  - V. Nivet-Antoine
PY  - 2011
DA  - 2011/11/29
TI  - 6.3 OXIDATIVE STRESS AND INFLAMMATION: IMPLICATION IN ENDOTHELIAL DYSFUNCTION AND CARDIOVASCULAR AGING ON MURINE MODELS
JO  - Artery Research
SP  - 145
EP  - 145
VL  - 5
IS  - 4
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2011.10.227
DO  - 10.1016/j.artres.2011.10.227
ID  - Baron*2011
ER  -