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  • Postpartum depression...

Postpartum depression discovery opens door to blood test, earlier treatment in new research

Dr. Kamal Kant KohliWritten by Dr. Kamal Kant Kohli Published On 2025-02-16T21:00:20+05:30  |  Updated On 16 Feb 2025 9:00 PM IST
Postpartum depression discovery opens door to blood test, earlier treatment in new research
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New postpartum depression research from the University of Virginia School of Medicine and Weill Cornell Medicine could lead to a blood test to identify women at risk and possibly even to a preventive treatment.

The research suggests that pregnant women may have characteristic levels of certain molecules in their blood that can warn that they are at risk of developing postpartum depression (PPD). These molecules, called neuroactive steroids, are derived from progesterone, a hormone that plays critical roles in pregnancy and menstruation.

Measuring those molecules via a simple blood test could let doctors get women treatment for PPD sooner – possibly even before symptoms appear, the researchers say. “Studying postpartum depression gives us a way to identify biological changes that occur before someone becomes depressed because the timing of postpartum depression is predictable,” said researcher Jennifer Payne, MD, an expert in reproductive psychiatry at UVA Health and the University of Virginia School of Medicine.

Understanding Postpartum Depression

Postpartum depression affects 10% to 15% of new moms. While many new mothers suffer mild, temporary “baby blues,” PPD is a long-term condition that can leave moms with persistent sadness, stifling anxiety, a stubborn sense of hopelessness and the feeling that they can’t bond with their baby. This can take a terrible toll on both mother and child – a toll that can last for years.

“Postpartum is the only time in people’s lifespans when we know there is a biological trigger which guarantees that a certain percentage of people will become ill,” said Weill Cornell’s Lauren Osborne, MD, who co-led the study with Payne. “If we can untangle this biology and find predictors for it, not only will we be helping women, but it may give us a step up in trying to find predictors for other psychiatric illnesses also.”

It's unclear why some women develop postpartum depression, but the new findings suggest that an imbalance in the body’s metabolism of progesterone may be a factor.

About the Study

To better understand the role of progesterone, the researchers focused on the hormone and on its “metabolic pathway” in the body. The scientists measured levels of neuroactive steroids derived from progesterone in the blood of 136 women during their second and third trimesters. Of these, 33 went on to develop postpartum depression after giving birth.

Two neuroactive steroids seem to affect the risk of developing PPD – pregnanolone and isoallopregnanolone. Pregnanolone acts on a particular cellular receptor to reduce stress. Isoallopregnanolone, on the other hand, acts on the same receptor to increase stress.

In the third trimester, women who went on to develop PPD had a lower pregnanolone/progesterone ratio and a higher isoallopregnanolone/pregnanolone ratio compared with those who did not, the researchers found. Elevated progesterone levels in late pregnancy were also associated with a higher risk of PPD.

Next Steps

The researchers plan to attempt to replicate their results in a larger, more diverse group of women in hopes of developing a clinical test to predict the risk of PPD. Further, they say their work could lead to a preventive treatment – possibly one of two prescription drugs, brexanolone and zuranolone, already available to treat PPD.

“We don’t know if these drugs would work as a preventive measure for people who are at risk of developing postpartum depression, but based on our findings, they have the potential to prevent [its] development,” Osborne said.

Reference:

Osborne, L.M., Etyemez, S., Pinna, G. et al. Neuroactive steroid biosynthesis during pregnancy predicts future postpartum depression: a role for the 3α and/or 3β-HSD neurosteroidogenic enzymes?. Neuropsychopharmacol. (2025). https://doi.org/10.1038/s41386-025-02052-z

NeuropsychopharmacologyPostpartum depressionpregnancymenstruation
Source : Neuropsychopharmacology
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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