Collaborative ECHO research led by Carrie Breton, ScD, MPH of the University of Southern California and Christine Ladd-Acosta, PhD of Johns Hopkins University found that preeclampsia and gestational diabetes may be linked to slower biological development in infants. The researchers found that newborns who were exposed to these pregnancy complications were biologically younger than those without exposure—an effect that was most noticeable in female infants. The results of this study provide an important clue about how biological mechanisms in offspring might be affected by common pregnancy complications and how these conditions could be linked to child health outcomes. This research, titled “Analysis of Pregnancy Complications and Epigenetic Gestational Age of Newborns,” is published in JAMA Network Open.
The study included 1,801 children born between 1998 and 2008 from 12 ECHO cohorts across the United States. ECHO researchers calculated each infant’s epigenetic age—a measurement of their “biological age” based on molecular markers in their cells—using DNA samples collected at birth and compared their biological age to their actual age at birth (measured in pregnancy weeks). Then, the researchers compared the biological ages of newborn babies exposed to pregnancy complications to the biological ages of babies who were not exposed.
“In the future, we plan to continue our research with a larger sample of participants and investigate whether these biological changes detected at birth are linked to health outcomes later in childhood,” said Dr. Breton. “If so, doctors and researchers could use that knowledge to develop targeted interventions that can reduce the adverse effects of preeclampsia and gestational diabetes on children’s health.”