Related Experiment Video
Updated: May 21, 2026

Optimized Analysis of DNA Methylation and Gene Expression from Small, Anatomically-defined Areas of the Brain
Published on: July 12, 2012
Environmental epigenetics: prospects for studying epigenetic mediation of exposure-response relationships
Victoria K Cortessis1, Duncan C Thomas, A Joan Levine
1Department of Preventive Medicine, Keck School of Medicine, University of Southern California, USC Norris Comprehensive Cancer Center, Los Angeles, CA 90089, USA.
Abstract:
Changes in epigenetic marks such as DNA methylation and histone acetylation are associated with a broad range of disease traits, including cancer, asthma, metabolic disorders, and various reproductive conditions. It seems plausible that changes in epigenetic state may be induced by environmental exposures such as malnutrition, tobacco smoke, air pollutants, metals, organic chemicals, other sources of oxidative stress, and the microbiome, particularly if the exposure occurs during key periods of development. Thus, epigenetic changes could represent an important pathway by which environmental factors influence disease risks, both within individuals and across generations. We discuss some of the challenges in studying epigenetic mediation of pathogenesis and describe some unique opportunities for exploring these phenomena.
Related Concept Videos
Gene-Environment Interactions
Epigenetic Regulation
Epigenetic Regulation
X-chromosome...
Epigenetic Regulation
Background and Environment Affect Phenotype
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
Pharmacokinetic–Pharmacodynamic Relationship: Exposure, Response and Effect

