Early life impacts of maternal obesity: a window of opportunity to improve the health of two generations

Author:

Dearden Laura1ORCID,Ozanne Susan E.1ORCID

Affiliation:

1. University of Cambridge, Wellcome MRC Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK

Abstract

The number of pregnancies complicated by obesity is increasing in line with the worldwide obesity crisis; recent estimates suggest that in developed countries more than 50% of pregnancies are in women who are overweight or have obesity. Maternal obesity is associated with an increased risk of many adverse outcomes for both the mother and baby during pregnancy and birth. In addition to these immediate outcomes, maternal obesity before and during pregnancy is associated with an increased risk of offspring cardio-metabolic disease later in life. Studies comparing siblings discordant for in utero exposure to maternal obesity suggest this is not simply due to transmission of ‘obesogenic genes’ between mother and child or current lifestyle factors, but reflects a direct impact of the obese intrauterine environment on fetal development. This review will describe the long-term consequences of exposure to maternal obesity during development for the cardio-metabolic health of the offspring. It will also discuss the potential molecular mechanisms that underlie the increased risk of metabolic disease in offspring of mothers with obesity, and explore interventions that may be implemented during pregnancy to limit the impact of obesity on offspring long-term health. This article is part of a discussion meeting issue ‘Causes of obesity: theories, conjectures and evidence (Part I)’.

Funder

British Heart Foundation

Medical Research Council

Royal Society

Publisher

The Royal Society

Subject

General Agricultural and Biological Sciences,General Biochemistry, Genetics and Molecular Biology

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