Marlena Fejzo, PhD, working in the lab

The cause of Hyperemesis Gravidarum (HG) has been found, and it’s not hCG!

A new study published in Nature reveals abnormally high levels of the hormone GDF15, and increased sensitivity to it, are the major factors contributing to HG. The most severe form…

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HER’s GDF15 research discussed in New Scientist

Using genetics, the HER Foundation, led by Marlena Fejzo, PhD., found the cause of HG is related to the nausea and vomiting hormone GDF15. Our newest study is pending publication and was featured in New Scientist.

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Goals for 2023

In 2023, we will continue our support of families across the globe, continue our groundbreaking research, advocate to change policy to improve maternal and fetal outcomes, and launch an exciting new education program!

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HER Genetic Research Presented at ASHG

What is the cause of hyperemesis gravidarum? Dr. Fejzo presented our team’s results from the largest ever genetic study of HG (7,197 HG cases and 178,953 controls) at the American Society of Human Genetics annual conference in Los Angeles on October 26, 2022.

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HER Board Members Lead Study at USC

HER Board members, Marlena Fejzo, PhD, and Patrick Mullen, MD, are running the first study of GDF15 in HG patients in the United States.

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