Potential biomarkers for early diagnosis of ectopic pregnancy have been identified by researchers.
Ectopic pregnancy (EP) occurs when an embryo does not attach normally inside the mother's uterus, but instead attaches and begins growing elsewhere. Most occur inside one of the Fallopian tubes, which link the ovaries to the uterus.
AdvertisementLeft undiagnosed, EP can burst the Fallopian tube and result in bleeding that is the second most common cause of maternal death early in the first trimester of pregnancy.
EP is difficult for doctors to diagnose, and scientists long have searched for substances present in the blood of women with EP that could be the basis for a test.
David Speicher and colleagues have now discovered such proteins in the blood from women with ectopic pregnancies and compared it to blood of women with normal pregnancies.
They identified almost 70 proteins occurring in unusual levels in the blood in EPs. One of those proteins is called Adam12 and it might be a particularly good early warning sign for EP, since it appears at levels that are 20 times lower than in normal pregnancies.
"The next step is clearly to test the candidate biomarkers on a larger, independent patient group, both individually and in multi-biomarker panels," said the researchers.
The study is published in ACS's Journal of Proteome Research.
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