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Updated: Aug 9, 2026

Neural Tube Closure in Mouse Whole Embryo Culture
Published on: October 21, 2011
What are the molecular mechanisms of neural tube defects?
1Developmental Biology Research Centre, Randall Institute, London, United Kingdom. udli155@kcl.ac.uk
Abstract:
Neural tube defects (NTDs) are some of the most common human malformations. The vast majority of NTDs can be prevented by the administration of folic acid; however, to date there has been no effective treatment of folic acid-resistant NTDs. A recent paper has confirmed an earlier report that the administration of inositol to the curly tail mutant mouse, which is a model of folate-resistant NTDs, can cure such defects. The molecular pathway by which this is achieved is thought to occur by the up-regulation of the retinoic acid receptor beta in the underlying hindgut endoderm, correcting a proliferation defect. However, alternative explanations also may account for NTDs.
Insights
Inositol effectively treats folate-resistant neural tube defects (NTDs) in mouse models. This treatment may work by increasing retinoic acid receptor beta, correcting cell proliferation issues.
Area of Science:
- Developmental biology
- Genetics
- Biochemistry
Background:
- Neural tube defects (NTDs) are common congenital malformations.
- Folic acid prevents most NTDs, but folate-resistant cases lack effective treatments.
- The curly tail mutant mouse serves as a model for folate-resistant NTDs.
Purpose of the Study:
- To investigate the efficacy of inositol as a treatment for folate-resistant NTDs.
- To explore the molecular mechanisms underlying inositol's therapeutic effect.
Main Methods:
- Administration of inositol to curly tail mutant mice.
- Analysis of molecular pathways, including retinoic acid receptor beta expression.
Main Results:
- Inositol administration cured neural tube defects in the curly tail mutant mouse model.
- The proposed mechanism involves up-regulation of retinoic acid receptor beta in the hindgut endoderm.
- This up-regulation is thought to correct a cellular proliferation defect.
Conclusions:
- Inositol shows promise as a treatment for folate-resistant NTDs.
- The retinoic acid pathway may be a key target for treating these resistant malformations.
- Further research is needed to confirm these findings and explore alternative explanations.
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