Accelerated vascular aging in CuZnSOD-deficient mice: impact on EPC function and reparative neovascularization.

ABSTRACT:

Objective

Aging is associated with increased oxidative stress levels and impaired neovascularization following ischemia. CuZnSOD has an important role to limit oxidative stress in the vasculature. Here we investigated the role of CuZnSOD for the modulation of ischemia-induced neovascularisation during aging.

Methods and results

Hindlimb ischemia was surgically induced in young (2- month-old) or older (8-month-old) wild type (WT) and CuZnSOD(-/-) mice. We found that blood flow recovery after ischemia and vascular density in ischemic muscles were significantly reduced in older compared to young WT mice. Both in young and older mice, CuZnSOD deficiency led to a further reduction of neovascularization. Accordingly, the resulting neovascularisation potential in a young CuZnSOD(-/

SUBMITTER: Groleau J 

PROVIDER: S-EPMC3155535 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature