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Prenatal opioid exposure may cause long-term neurological or behavioral effects later in a child's life

While infants exposed to opioids during their mother's pregnancy have been linked to adverse health outcomes, a new study at the University of Missouri has found prenatal opioid exposure could trigger long-term neurological or behavioral effects later in a child's life.

The key is the opioid's impact on the developing fetus' gut microbiome – a collection of bacteria and other microorganisms that naturally live inside the guts of all humans and animals and can serve as a barometer for overall health and wellness.

Cheryl Rosenfeld, a professor in the MU College of Veterinary Medicine, collaborated with Trupti Joshi, an assistant professor in the MU School of Medicine, to compare the gut microbiome of adult mice who were exposed during gestation to oxycodone, a commonly abused opioid that treats pain, in utero with the gut microbiome of mice who were not exposed to any opioids.

After collecting fecal matter from both groups of mice at 120 days of age, the researchers identified significant changes and disruptions to the natural balance of bacteria in the guts of the mice who were exposed to oxycodone in utero. These changes were linked with alterations in metabolic pathways, which impacts metabolism and potentially both neurological and behavioral health long-term.

Rosenfeld added that the gut microbiome of humans is very similar to the gut microbiome of mice, making the animal a useful biomedical model for translational and precision medicine research.

"While this research can lead to human studies down the road, those can take 20 to 30 years due to the much longer lifespan of humans compared to mice," Rosenfeld said. "The opioid epidemic, one of the biggest public health crises facing the United States, is causing real harm right now, so our goal is to raise immediate awareness and hopefully protect the health and well-being of women who are currently pregnant or seeking to become pregnant and their offspring from the potential negative and longstanding effects of opioids."

Read the whole article here.

  Quelle: University of Missouri-Columbia (02.08.2022 LW)
 
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