Format

Send to

Choose Destination
Curr Opin Clin Nutr Metab Care. 2010 May;13(3):284-93. doi: 10.1097/MCO.0b013e328338aa61.

Early nutrition and epigenetic programming: chasing shadows.

Author information

1
BDR Biologie du Développement et Reproduction, Developmental Biology and Reproduction, UMR INRA-ENVA-CNRS 1198, Domaine de Vilvert, Jouy en Josas, France.

Abstract

PURPOSE OF REVIEW:

The ways in which epigenetic modifications fix the effects of early environmental events, ensuring sustained responses to transient stimuli, which result into modified gene expression patterns and phenotypes later in life, is a topic of considerable interest. This review focuses on recently discovered mechanisms and calls into question prevailing views about the dynamics, positions and functions of relevant epigenetic marks.

RECENT FINDINGS:

Animal models, including mice, rats, sheep, pigs and rabbits, remain a vital tool for studying the influence of early nutritional events on adult health and disease. Most epigenetic studies have addressed the long-term effects on a small number of epigenetic marks, at the global or individual gene level, of environmental stressors in humans and animal models. They have demonstrated the existence of a self-propagating epigenetic cycle. In parallel, an increasing number of studies based on high-throughput technologies and focusing on humans and mice have revealed additional complexity in epigenetic processes, by highlighting the importance of crosstalk between the different epigenetic marks. In recent months, a number of studies focusing on the developmental origin of health and disease and metabolic programming have identified links between early nutrition, epigenetic processes and long-term illness.

SUMMARY:

Despite recent progress, we are still far from understanding how, when and where environmental stressors disturb key epigenetic mechanisms. Thus, identifying the original key marks and their changes throughout development, during an individual's lifetime or over several generations, remains a challenging issue.

PMID:
20375884
DOI:
10.1097/MCO.0b013e328338aa61
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Wolters Kluwer
Loading ...
Support Center