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Detrimental deletions: mitochondria, aging and Parkinson's disease

✍ Scribed by Saskia Biskup; Darren J. Moore


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
72 KB
Volume
28
Category
Article
ISSN
0265-9247

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✦ Synopsis


Abstract

As individuals enter their 80s, they are inevitably confronted with the problem of neuronal loss in the brain. The incidence of the common movement disorder β€˜mild parkinsonian signs’ (MPS) is approximately 50% over the age of 85 years. It has long been known that the loss of dopaminergic neurons in the substantia nigra pars compacta is a neuropathological hallmark of Parkinson's disease (PD). Recently, two papers1,2 present clear evidence for a high burden of mitochondrial DNA deletions within substantia nigra neurons in aged individuals and individuals with PD, pointing towards a common pathway inevitably leading to neuronal dysfunction and death. BioEssays 28: 963–967, 2006. Β© 2006 Wiley Periodicals, Inc.


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