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MDMA administration to pregnant Sprague-Dawley rats results in its passage to the fetal compartment.

Nicholas G Campbell, James B. Koprich, Nicholas M Kanaan, Jack W Lipton

Neurotoxicology and Teratology 2006 DOI: 10.1016/j.ntt.2006.05.006 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Pharmacokinetic study in pregnant rats Peer reviewed
Population Pregnant rats and their fetuses at embryonic day 14
Intervention MDMA
Dose 15 mg/kg, subcutaneous
Duration 8 h sampling period
Measures HPLC
Topics MDMA
Key points MDMA (15 mg/kg subcutaneously) administered to pregnant rats at embryonic day 14 produced measurable MDMA and MDA in maternal plasma, amniotic fluid, and fetal brain over 8 hours, with reliable and reproducible metabolism across tissues. Amniotic fluid levels correlated strongly with fetal brain levels, suggesting amniotic fluid can serve as a proxy for fetal brain exposure.

Abstract

Recent investigations have demonstrated that prenatal 3,4-methylenedeoxymethamphetamine (MDMA; ecstasy) exposure in rats results in significant and persistent changes in the developing brain. However, no published pharmacokinetic studies exist demonstrating that MDMA administered during pregnancy passes to the fetal compartment. This leaves open the question whether MDMA is directly acting on the fetal brain to produce the observed changes in previous studies, or whether such effects are an indirect result of MDMA administration to the pregnant dam. Therefore, pregnant rats were administered a single dose of MDMA (15 mg/kg, subcutaneous) at embryonic day 14 (E14) and the levels of MDMA and its metabolite 3,4-methylenedioxyamphetamine (MDA) were quantified in maternal plasma, amniotic fluid, and fetal brain over 8 h by HPLC. The time course of MDMA and MDA metabolism was reliable and reproducible in all tissues. There was a strong correlation between fetal amniotic fluid and fetal brain suggesting that amniotic fluid could be used to reliably estimate fetal brain levels without directly utilizing fetal brain tissue. These data also provide a framework for subsequent in vitro cell culture studies using biologically relevant MDMA doses.

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