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Drinking During Pregnancy Can Alter the Genes in Newborns

Mothers who drink moderate to high levels of alcohol during pregnancy may be changing their babies’ DNA, according to a Rutgers-led study. Lead author Dipak K. Sarkar, a Distinguished Professor and director of the Endocrine Program in the Department of Animal Sciences at Rutgers University-New Brunswick, said:

The study by Sarkar and scientists in a Collaborative Initiative on Fetal Alcohol Spectrum Disorders can be found in the journal Alcoholism: Clinical and Experimental Research.

Building on an earlier Rutgers-led study that found binge and heavy drinking may trigger long-lasting genetic changes in adults, the researchers sought alcohol-induced DNA changes in 30 pregnant women and 359 children.

They found changes to two genes — POMC, which regulates the stress-response system, and PER2, which influences the body’s biological clock — in women who drank moderate to high levels of alcohol during pregnancy and in children who had been exposed to those levels of alcohol in the womb.

Researchers looked for alcohol-induced DNA changes in pregnant women and their children. They found changes to two genes – POMC, which regulates the stress-response system, and PER2, which influences the body’s biological clock – in women who drank moderate to high levels of alcohol during pregnancy and in children who had been exposed to those levels of alcohol in the womb. (Image: via pixabay / CC0 1.0)
Researchers looked for alcohol-induced DNA changes in pregnant women and their children. They found changes to two genes — POMC, which regulates the stress-response system, and PER2, which influences the body’s biological clock — in women who drank moderate to high levels of alcohol during pregnancy and in children who had been exposed to those levels of alcohol in the womb. (Image: via pixabay / CC0 1.0)

Heavy drinking in women is four or more drinks on at least five occasions in a month. Moderate drinking in women is about three drinks per occasion. Sarkar said:

Fetal alcohol spectrum disorders can include physical or intellectual disabilities, as well as behavioral and learning problems. While there is no cure, early intervention treatment services can improve a child’s development, according to the U.S. Centers for Disease Control and Prevention, which says there is no known safe amount of alcohol to drink while pregnant.

The study also found that infants exposed to alcohol in the womb — which passes from the mother’s blood through the umbilical cord — had increased levels of cortisol, a potentially harmful stress hormone that can suppress the immune system and lead to ongoing health issues.

Provided by: Rutgers, The State University of New Jersey [Note: Materials may be edited for content and length.]

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  • Troy was born and raised in Australia and has always wanted to know why and how things work, which led him to his love for science. He is a professional photographer and enjoys taking pictures of Australia's beautiful landscapes. He is also a professional storm chaser where he currently lives in Hervey Bay, Australia.

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