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Revista médica de Chile

Print version ISSN 0034-9887

Abstract

CAMPOS E, Carolina  and  CAVIERES, M. Fernanda. Evaluation of embryotoxicity of misoprostol using the whole embryo culture assay. Rev. méd. Chile [online]. 2011, vol.139, n.5, pp.613-617. ISSN 0034-9887.  http://dx.doi.org/10.4067/S0034-98872011000500008.

Background: Approximately 15% of misoprostol-induced-abortions may not be successful, leading to in utero exposure to the drug and to the induction of a series of defects including central nervous system, limb and visceral defects. A commonproposal is that the drug causes disruption of the fetal vasculature leading to embryonic or fetal hypoxia. Aim: To evaluate the teratogenicity of misoprostol using the rat post-implantation embryo culture. Material and Methods: Rat embryos were collected at the beginning of organogenesis and cultured in rat serum containing misoprostol at concentrations of 200, 2,000 or 20,000 pg/ml. Functionality, morphology and morphometry parameters were evaluated. Results: Misoprostol induced a dose-dependent embryotoxic effect causing a decrease in embryo viability and function (poor vascular development and survival) and morphometry (alterations in branchial arches, heart and cephalic portions of the neural tube, among others). Conclusions: All the manifestations observed are indicative of the ability of misoprostol to directly induce developmental retardation and alterations.

Keywords : Embryo culture techniques; Misoprostol; Teratology; Toxicpotential.

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