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Food Restriction in Pregnant Mice Can Induce Changes in Histone Modifications and Suppress Gene Expression in Fetus
Author(s) -
Jafar Sharif,
Masataka Nakamura,
Toshiro Ito,
Yutaka Kimura,
Teruyuki Nagamune,
Kohzoh Mitsuya,
K. Okamura
Publication year - 2007
Publication title -
nucleic acids symposium series
Language(s) - English
Resource type - Journals
eISSN - 1746-8272
pISSN - 0261-3166
DOI - 10.1093/nass/nrm063
Subject(s) - epigenetics , histone , dna methylation , biology , fetus , genomic imprinting , gene , gene expression , regulation of gene expression , psychological repression , histone methylation , transcription (linguistics) , genetics , microbiology and biotechnology , pregnancy , linguistics , philosophy
Biological responses to environmental effects are mediated through epigenetic changes such as chemical modifications of the histone tails and DNA (5-cytosine) methylation. We report that dietary protein restriction in pregnant mice can alter histone modifications in the promoter region of the Igf2 gene and cause a two-fold repression in promoter specific Igf2 transcription in the liver of the fetus. Suppression of Igf2 is accompanied with low birth weight of the pups born to the protein-restricted dams. Our results provide new information about the epigenetic aspects of early life programming and will improve our understanding about the developmental origins of adult diseases.

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