Scientists have discovered the cause of nausea and vomiting associated with the first trimester of pregnancy — and have pinpointed a specific hormone as the culprit in the most severe cases.
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Although it’s called “morning sickness,” these bouts of illness can happen any time — and sometimes can develop into hyperemesis gravidarum, a severe form of morning sickness that can result in weight loss, dehydration, and, according to theMayo Clinic,hospitalization.
This severe form of morning sickness can affect up to 3% of pregnant people, according to theCleveland Clinic, which adds that the condition causes the pregnancy to be classified as “high-risk.”
The cause of morning sickness — and its most severe form, hyperemesis gravidarum — has been discovered.Getty
But because morning sickness is so common, more serious cases are often dismissed, Dr. Marlena Fejzo, a geneticist at the University of Southern California Keck School of Medicine and a co-author of the new study, toldThe New York Times.
“I’ve been working on this for 20 years and yet there are still reports of women dying from this and women being mistreated,” Dr. Fejzo told the outlet.
And as she toldThe New York Times, she decided to study the cause of hyperemesis gravidarum after her own bout with the illness, which was so severe it caused her to have a miscarriage.
“We confirmed that higher GDF15 levels in maternal blood are associated with vomiting in pregnancy and HG,”the study said, which added that patients suffering from it could perhaps one day take medications that block the hormone’s effects.
Kate Middletonfamously struggled with hyperemesis gravidarum during allthree of her pregnancies, causing her tocancel planned appearancesand at one point,be hospitalized. ComedianAmy Schumeralsolanded in the hospitalwith the condition during her second trimester, which is traditionally when morning sickness eases.
Kate Middleton struggled with hyperemesis gravidarum during all three pregnancies.Mark Cuthbert/UK Press via Getty Images
Mark Cuthbert/UK Press via Getty Images
However, in spite of the condition’s recent rise in awareness, some say hyperemesis gravidarum — and morning sickness in general — is dismissed as just something women need to accept as a part of pregnancy.
The discovery of the hormone’s role in morning sickness, she told the outlet, will help people realize “this is a real thing rather than something in somebody’s head.”
source: people.com
