PMID: 2114463Jun 1, 1990Paper

Malformations of the maxillofacial region induced by retinoids in an experimental system

International Journal of Oral and Maxillofacial Surgery
G GranströmG Zellin

Abstract

Treatment of pregnant Sprague-Dawley rats with etretinate or retinoic acid on pregnancy Day 8.5-9.0 resulted in craniofacial malformations in 100% of the embryos. A morphological investigation of the maxillofacial malformations was undertaken. Retinoid-exposed embryos showed a reduced skull base, flattened and elongated occiput and micrognathia. The malar bones were reduced or missing. Meckel's cartilage was delayed in differentiation as was the mandibular bone. The fusion between different facial processes was disturbed which resulted in facial and palatal clefts. Disturbance of the development of the hypophysis was combined with persisting Rathke's pouch. Aplasia of incisor and molar tooth buds was seen as was aplasia of salivary gland ducts. The facial artery was hyperplastic.

References

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Citations

Jan 1, 1991·Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery·G GranströmB C Magnusson
Jan 1, 1991·Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery·G Granström
Jan 1, 1992·Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery·G GranströmS Kirkeby
Nov 1, 1990·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·G Granström
Jun 17, 1999·Surgical and Radiologic Anatomy : SRA·R GlineurL De Vos
Oct 1, 1996·European Journal of Oral Sciences·C Jacobsson, G Granström
Jun 1, 1997·Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery·C Jacobsson, G Granström

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