Pleiotropic Effects of a Methyl Donor Diet in a Novel Animal Model
| Autor: | Vanessa Anderson, Keswick Lo, Paul B. Vrana, Janet P. Crossland, Patricia Cakora, April C. H. South, Amy Owen, Kimberly R. Shorter, Michael R. Felder |
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| Rok vydání: | 2014 |
| Předmět: |
B Vitamins
Peromyscus Rodent Offspring lcsh:Medicine Locus (genetics) Genetic Predisposition Genomic Imprinting Behavioral Neuroscience Folic Acid Developmental Neuroscience biology.animal Genetics Animals Neural Tube Defects Epigenetics Allele lcsh:Science Hair Color Gene Nutrition 2. Zero hunger Multidisciplinary Behavior Animal biology lcsh:R Body Weight Biology and Life Sciences Nutrients Vitamins biology.organism_classification Diet Genetics of Disease Models Animal DNA methylation lcsh:Q Animal Genetics Research Article Developmental Biology Neuroscience |
| Zdroj: | PLoS ONE PLoS ONE, Vol 9, Iss 8, p e104942 (2014) |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0104942 |
| Popis: | Folate and other methyl-donor pathway components are widely supplemented due to their ability to prevent prenatal neural tube defects. Several lines of evidence suggest that these supplements act through epigenetic mechanisms (e.g. altering DNA methylation). Primary among these are the experiments on the mouse viable yellow allele of the agouti locus (A(vy)). In the Avy allele, an Intracisternal A-particle retroelement has inserted into the genome adjacent to the agouti gene and is preferentially methylated. To further test these effects, we tested the same diet used in the Avy studies on wild-derived Peromyscus maniculatus, a native North American rodent. We collected tissues from neonatal offspring whose parents were fed the high-methyl donor diet as well as controls. In addition, we assayed coat-color of a natural variant (wide-band agouti = A(Nb)) that overexpresses agouti as a phenotypic biomarker. Our data indicate that these dietary components affected agouti protein production, despite the lack of a retroelement at this locus. Surprisingly, the methyl-donor diet was associated with defects (e.g. ovarian cysts, cataracts) and increased mortality. We also assessed the effects of the diet on behavior: We scored animals in open field and social interaction tests. We observed significant increases in female repetitive behaviors. Thus these data add to a growing number of studies that suggest that these ubiquitously added nutrients may be a human health concern. |
| Databáze: | OpenAIRE |
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