Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

An Animal Model to Assess the Effects of Hydroxyurea Exposure Suggests That the Administration of This Agent to Pregnant Women and Young Infants May Not Be as Safe as We Thought

Version 1 : Received: 19 November 2018 / Approved: 22 November 2018 / Online: 22 November 2018 (07:09:28 CET)

A peer-reviewed article of this Preprint also exists.

Rodríguez-Vázquez, L.; Martí, J. An Animal Model for Assessing the Effects of Hydroxyurea Exposure Suggests That the Administration of This Agent to Pregnant Women and Young Infants May Not Be as Safe as We Thought. Int. J. Mol. Sci. 2018, 19, 3986. Rodríguez-Vázquez, L.; Martí, J. An Animal Model for Assessing the Effects of Hydroxyurea Exposure Suggests That the Administration of This Agent to Pregnant Women and Young Infants May Not Be as Safe as We Thought. Int. J. Mol. Sci. 2018, 19, 3986.

Abstract

The cytostatic agent hydroxyurea (HU) has proven to be beneficial for a variety of conditions in the disciplines of oncology, hematology, infectious disease and dermatology. It disrupts the S-phase of the cell cycle by inhibiting the ribonucleotide reductase enzyme, thus blocking the transformation of ribonucleotides into deoxyribonucleotides, a rate limiting step in DNA synthesis. HU is listed as an essential medicine by the World Health Organization. Several studies have indicated that HU is well tolerated and safe in pregnant women and very young pediatric patients. To our knowledge, only a few controlled studies about the adverse effects of HU therapy have been done in humans. Despite this, the prevalence of central nervous system abnormalities, including ischemic lesions and stenosis have been reported. This review will summarize and present the effects of HU-exposure on the prenatal and perinatal development of the rat cerebellar cortex and deep cerebellar nuclei neurons. Our results call for the necessity to better understand HU effects and define the administration of this drug to gestating women and young pediatric patients.

Keywords

hydroxyurea; cerebellum; neuron; immunohistochemistry; electron microscopy; cell death; apoptosis

Subject

Biology and Life Sciences, Cell and Developmental Biology

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