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Am J Obstet Gynecol. 2016 May;214(5):559-65. doi: 10.1016/j.ajog.2016.01.182. Epub 2016 Jan 29.

Obesogens: an emerging threat to public health.

Author information

  • 1Department of Developmental and Cell Biology, University of California, Irvine, Irvine, California; Department of Pharmaceutical Sciences, University of California, Irvine, Irvine, California.
  • 2Department of Developmental and Cell Biology, University of California, Irvine, Irvine, California; Department of Pharmaceutical Sciences, University of California, Irvine, Irvine, California. Electronic address: blumberg@uci.edu.

Abstract

Endocrine disrupting chemicals (EDCs) are defined as exogenous chemicals, or mixtures of chemicals, that can interfere with any aspect of hormone action. The field of endocrine disruption is historically rooted in wildlife biology and reproductive endocrinology where EDCs are demonstrated contributors to infertility, premature puberty, endometriosis, and other disorders. Recently, EDCs have been implicated in metabolic syndrome and obesity. Adipose tissue is a true endocrine organ and, therefore, an organ that is highly susceptible to disturbance by EDCs. A subset of EDCs, called "obesogens," promote adiposity by altering programming of fat cell development, increasing energy storage in fat tissue, and interfering with neuroendocrine control of appetite and satiety. Obesity adds more than $200 billion to US healthcare costs and the number of obese individuals continues to increase. Hence, there is an urgent, unmet need to understand the mechanisms underlying how exposures to certain EDCs may predispose our population to be obese. In this review, we discuss the history of obesogen discovery from its origins in reproductive biology to its latest role in the transgenerational inheritance of obesity in mice. We discuss the development of adipose tissue in an embryo, maintenance of adipocyte number in adults, how EDC disruption programs stem cells to preferentially make more adipocytes, the mechanisms by which chemicals can permanently alter the germline epigenome, and whether there are barriers to EDCs in the gametes.

KEYWORDS:

adipogenesis; endocrine disruptors; metabolic disruptors; obesogens; transgenerational obesity

PMID:
26829510
PMCID:
PMC4851574
[Available on 2017-05-01]
DOI:
10.1016/j.ajog.2016.01.182
[PubMed - in process]
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