Format

Send to:

Choose Destination
See comment in PubMed Commons below
Mol Neurodegener. 2007 May 29;2:10.

Absence of dopaminergic neuronal degeneration and oxidative damage in aged DJ-1-deficient mice.

Author information

  • 1Center for Neurologic Diseases, Brigham & Women's Hospital, Program in Neuroscience, Harvard Medical School, Boston, MA, 02115, USA. hyamaguchi@rics.bwh.harvard.edu

Abstract

Parkinson's disease is the most common movement disorder characterized by dopaminergic dysfunction and degeneration. Loss-of-function mutations in the DJ-1 gene have been linked to autosomal recessive forms of early-onset familial Parkinson's disease. DJ-1 is thought to play roles in protection of cells against oxidative stress and in maintenance of the normal dopaminergic function in the nigrostriatal pathway. Here we investigate the consequence of both DJ-1 inactivation and aging in mice. We found that DJ-1-/- mice at the age of 24-27 months have normal numbers of dopaminergic neurons in the substantia nigra and normal levels of dopamine and its major metabolites in the striatum. The number of noradrenergic neurons in the locus coeruleus is also unchanged in DJ-1-/- mice. Moreover, there is no accumulation of oxidative damage or inclusion bodies in aged DJ-1-/- brains. Together, these results indicate that loss of DJ-1 function alone is insufficient to cause nigral degeneration and oxidative damage in the life span of mice.

PMID:
17535435
[PubMed]
PMCID:
PMC1891294
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for BioMed Central Icon for PubMed Central
    Loading ...
    Write to the Help Desk