The Early Growth Genetics (EGG) and EArly Genetics and Lifecourse Epidemiology (EAGLE) consortia: design, results and future prospects.

Authors:
Christel M Middeldorp
Christel M Middeldorp
VU University Amsterdam
Netherlands
Janine F Felix
Janine F Felix
University Medical Center Rotterdam
Rotterdam | Netherlands
Dr Anubha Mahajan, PhD
Dr Anubha Mahajan, PhD
Wellcome Trust Centre for Human Genetics, University of Oxford
UK
Mark I McCarthy
Mark I McCarthy
United Kingdom

Eur J Epidemiol 2019 Mar 18;34(3):279-300. Epub 2019 Mar 18.

Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK.

The impact of many unfavorable childhood traits or diseases, such as low birth weight and mental disorders, is not limited to childhood and adolescence, as they are also associated with poor outcomes in adulthood, such as cardiovascular disease. Insight into the genetic etiology of childhood and adolescent traits and disorders may therefore provide new perspectives, not only on how to improve wellbeing during childhood, but also how to prevent later adverse outcomes. To achieve the sample sizes required for genetic research, the Early Growth Genetics (EGG) and EArly Genetics and Lifecourse Epidemiology (EAGLE) consortia were established. The majority of the participating cohorts are longitudinal population-based samples, but other cohorts with data on early childhood phenotypes are also involved. Cohorts often have a broad focus and collect(ed) data on various somatic and psychiatric traits as well as environmental factors. Genetic variants have been successfully identified for multiple traits, for example, birth weight, atopic dermatitis, childhood BMI, allergic sensitization, and pubertal growth. Furthermore, the results have shown that genetic factors also partly underlie the association with adult traits. As sample sizes are still increasing, it is expected that future analyses will identify additional variants. This, in combination with the development of innovative statistical methods, will provide detailed insight on the mechanisms underlying the transition from childhood to adult disorders. Both consortia welcome new collaborations. Policies and contact details are available from the corresponding authors of this manuscript and/or the consortium websites.

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http://dx.doi.org/10.1007/s10654-019-00502-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6447695PMC
March 2019
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