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[3] [4] It was introduced as a sedative and medication for morning sickness without having been tested on pregnant women. [5] While initially deemed to be safe in pregnancy, concerns regarding birth defects were noted in 1961, and the medication was removed from the market in Europe that year. [3] [6]
Thalidomide is a known human teratogen and carries an extremely high risk of severe, life-threatening birth defects if administered or taken during pregnancy. [6] It causes skeletal deformities such as amelia (absence of legs and/or arms), absence of bones, and phocomelia (malformation of the limbs).
DES gained notoriety when it was shown to cause a rare vaginal tumor in girls and young women who had been exposed to this drug in utero.In 1971, the New England Journal of Medicine published a report showing that seven of eight girls and young women (ages 14 to 22) who had been diagnosed with vaginal clear cell adenocarcinoma had been exposed prenatally to DES. [5]
Phocomelia is a congenital condition that involves malformations of human arms and legs which result in a flipper-like appendage. [1] [2] A prominent cause of phocomelia is the mother being prescribed the use of the drug thalidomide during pregnancy; however, the causes of most cases are to be determined.
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The cause of morning sickness is unknown but may relate to changing levels of estrogen and the hormone human chorionic gonadotropin. [2] [9] Some have proposed that morning sickness may be useful from an evolutionary point of view -it may protect both the pregnant woman and the developing embryo just when the fetus is most vulnerable. [1]
Scientists are moving forward with researching cures for morning sickness, including testing drugs that block GDF15 from binding to its receptor in the brain, and exposing women to the hormone ...
Expecting women know to anticipate morning sickness, a potentially debilitating side effect that plagues 80% of pregnant women. But scientists haven’t been sure as to why the misery occurs ...
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