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Role of retinoids in renal development: pathophysiological implication
C Merlet-Bénichou1, J Vilar, M Lelièvre-Pégorier
1Unité de Recherche sur le Développement Normal et Pathologique des Fonctions Epithéliales, INSERM U319, Université Paris 7-Denis Diderot, France. benichou@paris7.jussieu.fr
Insights
Fetal vitamin A levels significantly influence the number of nephrons at birth, impacting kidney development and long-term health. Proper prenatal vitamin A status is crucial for preventing chronic kidney disease and hypertension.
Area of Science:
- Developmental biology
- Nephrology
- Nutritional science
Background:
- Nephron endowment at birth is a critical determinant of renal health.
- Vitamin A is essential for various developmental processes.
- The role of fetal vitamin A in nephrogenesis and renal vasculature is not fully understood.
Purpose of the Study:
- To investigate the role of fetal vitamin A status in modulating nephron endowment.
- To explore the impact of vitamin A on renal vasculature development.
- To assess the potential of fetal vitamin A in programming chronic renal disease and hypertension.
Main Methods:
- This study is a review of existing literature and research on vitamin A and kidney development.
- Analysis of data from animal models and human observational studies.
Main Results:
- Vitamin A plays a crucial role in regulating nephron number at birth.
- Adequate fetal vitamin A is essential for the proper development of the renal vasculature.
- Variations in fetal vitamin A status are linked to differences in nephron count in the general population.
Conclusions:
- Fetal vitamin A status is a key factor in determining nephron endowment.
- Prenatal vitamin A deficiency or excess may contribute to the intrauterine programming of chronic kidney disease and hypertension.
- Maintaining optimal vitamin A levels during pregnancy is vital for fetal kidney development and lifelong renal health.
Abstract:
Vitamin A closely modulates nephron endowment at birth. It is also required for the development of renal vasculature. Fetal vitamin A status may thus be responsible for most of the variations in nephron number found in the general population, and may play a major role in the intrauterine programming of chronic renal disease and hypertension.