Impact of maternal topiramate ingestion on ossification of skull and appendicular bones in rat fetuses.

Autor: Nasr El-Din WA; Department of Anatomy, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain; Department of Human Anatomy and Embryology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt., Potu BK; Department of Anatomy, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain. Electronic address: potubk@agu.edu.bh., Fadel RA; Department of Anatomy, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain; Department of Human Anatomy and Embryology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt., Salem AH; Department of Anatomy, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain; Department of Human Anatomy and Embryology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt., Sequeira RP; Department of Pharmacology and Therapeutics, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain., Almarabheh A; Department of Family and Community Medicine, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain., El-Fark MMO; Department of Human Anatomy and Embryology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
Jazyk: angličtina
Zdroj: Morphologie : bulletin de l'Association des anatomistes [Morphologie] 2024 Mar; Vol. 108 (360), pp. 100702. Date of Electronic Publication: 2023 Oct 25.
DOI: 10.1016/j.morpho.2023.100702
Abstrakt: The skull and appendicular bones are derived from different embryological sources during their development. The impact of prenatal exposure of topiramate on ossification of these bones is not adequately studied. The goal of this study was to assess the ossification patterns of the craniofacial bones and bones of the forelimbs and hindlimbs in 20-day-old rat fetuses after maternal exposure to topiramate at doses equivalent to human therapeutic doses. Three groups of Sprague-Dawley pregnant rats were used: control, topiramate 50mg/kg/day (T50) and topiramate 100mg/kg/day (T100). Topiramate was given by oral gavage from day 6 to day19 of gestation. Ossification was evaluated in the bones of 20 days fetuses after staining with Alizarin red. Results showed a significant reduction in complete ossified centers of the metacarpal, metatarsal and craniofacial bones in topiramate-exposed fetuses at both doses when compared to the control group. Also, a significant decrease in the length of ossified part of the long bones of the forelimbs and hindlimbs in topiramate-exposed fetuses at both doses was noted when compared to the control group. Crown-rump length and fetal weight were significantly decreased in topiramate treated groups compared to the control group. In all examined groups, there was a positive correlation between the crown-rump length and the lengths of humerus and femur. No abnormalities in the ossified bones and no significant changes in their ossification pattern were observed between the treated groups. In conclusion, prenatal administration of topiramate in doses equivalent to human therapeutic doses delayed ossification and development of craniofacial and appendicular bones in rat fetuses and their effects are not dose dependent at doses investigated. The implications of these findings in women who require topiramate therapy in pregnancy merit further evaluation.
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Databáze: MEDLINE
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