Abstract:
:Alzheimer's disease (AD) and Parkinson's disease (PD) are two common neurodegenerative diseases that result in the progressive damage or death of neurons. Environmental agents have the potential to damage the developing and mature nervous system, resulting in neurodegenerative diseases. Heritable changes in gene expression that do not involve coding sequence modifications are referred to as 'epigenetic'. These modifications include DNA methylation and downstream modification of histones. Environmental factors, including heavy metals and dietary folate intake, perturb neurodegenerative genes by epigenetic means, leading to altered gene expression and late-onset neurodegenerative diseases. Research into the genetic control of DNA methylation indicates an allelic skewing in a significant proportion of genes. This phenomenon may determine how an individual's genetic makeup can alter the effect an environmental factor has on their risk of developing neurodegeneration. Finally, preliminary evidence using cell culture and transgenic animal models suggests that whole classes of pan-epigenetic modifiers will have significant protective effects against common neurodegenerative diseases.
journal_name
Epigenomicsjournal_title
Epigenomicsauthors
Kwok JBdoi
10.2217/epi.10.43subject
Has Abstractpub_date
2010-10-01 00:00:00pages
671-82issue
5eissn
1750-1911issn
1750-192Xjournal_volume
2pub_type
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