Journal
TRENDS IN MOLECULAR MEDICINE
Volume 15, Issue 4, Pages 148-158Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.molmed.2009.02.005
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Funding
- Carolinas Medical Center, NC, USA
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Whole-genome association studies (WGASs) have identified single-nucleotide polymorphisms (SNPs) associated with sporadic amyotrophic lateral sclerosis (sALS). However, WGASs have so far produced results that are not consistent with those obtained from monogenic association studies focused on genes found to be relevant to AILS in functional biological studies. We propose that such inconsistencies might be at least partially alleviated by using approaches that integrate weakly associated SNPs. Several independent studies have detected abnormal reverse transcriptase (RT) activity in SAILS patients, suggesting the involvement of retroelements in ALS pathogenesis. Here, we discuss the functions of genes with SNPs or mutations in sALS and consider whether these might implicate the involvement of a putative retroelement associated with SAILS pathogenesis. New experimental models for studying retroviral activation and the effects of xenobiotic agents in ALS will be needed to further investigate a potential role of retroelements in the etiology of sALS.
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