{"id":3198172,"date":"2024-03-26T10:08:30","date_gmt":"2024-03-26T14:08:30","guid":{"rendered":"https:\/\/www.futurity.org\/?p=3198172"},"modified":"2024-03-27T08:32:19","modified_gmt":"2024-03-27T12:32:19","slug":"pregnancy-aging-3198172","status":"publish","type":"post","link":"https:\/\/www.futurity.org\/pregnancy-aging-3198172\/","title":{"rendered":"Pregnancy appears to speed up aging, at least at first"},"content":{"rendered":"

New research suggests that pregnancy accelerates aging, but with an important caveat\u2014there appears to be significant reversal of this effect in the postpartum period.<\/p>\n

To make this discovery, Yale Child Study Center Assistant Professor Kieran O’Donnell and his team made use of a unique pregnancy cohort that provided epigenetic data across pregnancy, allowing them to calculate measures of biological<\/a> aging using “epigenetic clocks.”<\/p>\n

From early to late pregnancy, a period of approximately 20 weeks, biological\u2014or epigenetic\u2014age increased by approximately two years, suggesting that pregnancy does indeed accelerate aging. However, when O’Donnell and his team examined biological age in the same women three months later, what they saw came as surprise.<\/p>\n

“At three months postpartum, we saw a remarkably large decrease in biological age, by as much as eight years for some individuals, so while pregnancy increases biological age there is a clear (and pronounced) recovery in the postpartum,” O’Donnell says.<\/p>\n

These new findings replicate those in an earlier study\u00a0suggesting different sources of stress<\/a> may increase biological age in a transient manner.<\/p>\n

In the new study, for which the group’s biostatistician, Hung Pham, was first author, the team also found that maternal pre-pregnancy body mass index negatively affected this recovery effect, resulting in higher biological age estimates in the postpartum. In contrast, breastfeeding<\/a> resulted in a steeper decline in maternal biological age from pregnancy to three months postpartum.<\/p>\n

O’Donnell says these findings provide an interesting new direction for aging research.<\/p>\n

“Lots to follow up on here,” O’Donnell says. “First, we don’t know if the postpartum recovery effect is relevant for short- or long-term maternal health outcomes and if these effects accumulate over successive pregnancies.<\/p>\n

“Likewise, we don’t know if the postpartum decrease in biological age<\/a> is simply the system recovering to pre-pregnancy biological age or, more provocatively, if pregnancy may have a rejuvenating effect.”<\/p>\n

The research appears in Cell Metabolism<\/a>.<\/em><\/p>\n

Source: Yale University <\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

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