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Vitamin A and clefting: putative biological mechanisms

Mignon M G Ackermans1, Huiqing Zhou, Carine E L Carels

  • 1Department of Orthodontics and Craniofacial Biology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.

Nutrition Reviews
|October 5, 2011
PubMed

Insights

Maternal vitamin A intake impacts embryonic development, potentially causing cleft palate. Understanding how excess vitamin A affects palatogenesis is crucial for developing preventive nutritional strategies.

Area of Science:

  • Developmental Biology
  • Nutritional Science
  • Teratology

Background:

  • Nutritional factors, including vitamin intake, are implicated in the development of cleft palate.
  • Vitamin A plays a critical role in embryonic development and is known to cause congenital malformations when in excess.

Purpose of the Study:

  • To review the biological mechanisms linking maternal vitamin A intake to cleft palate.
  • To identify how excessive vitamin A may disrupt the stages of palatogenesis.

Main Methods:

  • Literature review of studies investigating vitamin A and palatogenesis.
  • Analysis of proposed biological pathways affected by vitamin A during embryonic development.

Main Results:

  • Excess vitamin A can interfere with cell proliferation, extracellular matrix composition, and epithelial differentiation/apoptosis during palatogenesis.
  • High doses of vitamin A impact palatogenesis by affecting cell proliferation and growth factors like TGF-β and PDGF.

Conclusions:

  • Excessive maternal vitamin A intake poses a risk for cleft palate development through multiple mechanisms during palatogenesis.
  • Further research into the effects of lower vitamin A doses is needed to refine public health recommendations for preventing cleft palate.

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