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Am J Obstet Gynecol. 2011 Nov;205(5):485.e24-7. doi: 10.1016/j.ajog.2011.06.034. Epub 2011 Jun 15.

High fetal plasma adenosine concentration: a role for the fetus in preeclampsia?

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  • 1Department of Obstetrics and Gynecology, William Beaumont Hospital, Royal Oak Michigan and Oakland University, Rochester, MI, USA. jimmy.espinoza@beaumont



Clinical observations suggest a role for the fetus in the maternal manifestations of preeclampsia, but the possible signaling mechanisms remain unclear. This study compares the fetal plasma concentrations of adenosine from normal pregnancies with those from preeclampsia.


This secondary data analysis included normal pregnancies (n = 27) and patients with preeclampsia (n = 39). Patients with preeclampsia were subclassified into patients with (n = 25) and without (n = 14) abnormal uterine artery Doppler velocimetry (UADV).


Fetal plasma concentrations of adenosine were significantly higher in patients with preeclampsia (1.35 ± 0.09 μmol/L) than in normal pregnancies (0.52 ± 0.06 μmol/L; P < .0001). Fetal plasma concentrations of adenosine in patients with preeclampsia with abnormal UADV (1.78 ± 0.15 μmol/L), but not with normal UADV (0.58 ± 0.14 μmol/L), were significantly higher than in normal pregnancies (P < .0001).


Patients with preeclampsia with sonographic evidence of chronic uteroplacental ischemia have high fetal plasma concentrations of adenosine.

Copyright © 2011 Mosby, Inc. All rights reserved.

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