Estimating the prevalence of congenital disaccharidase deficiencies using allele frequencies from gnomAD - 17/11/22
Abstract |
Background: There are currently three known congenital disaccharidase deficiencies: congenital lactase deficiency (CLD), congenital sucrase-isomaltase deficiency (CSD), and congenital trehalase deficiency (CTD). No congenital deficiency has been described for maltase-glucoamylase (MGAM).
Methods: A literature search was performed in PubMed for the pathogenic variants CLD, CSD, and CTD and the articles retrieved were analyzed to estimate the prevalence of congenital disaccharidase deficiencies.
Results: Based on reported variants, the estimated prevalence was 1.3 per 106 births (95% CI: 1.1–1.7) for CLD, and 31.4 per 106 births (95% CI: 28.3–34.8) for CSD. Using data on previously reported variants and variants predicted to be loss-of-function in gnomAD, the overall estimated prevalence was 2.3 per 106 births (95% CI: 1.9–2.9) for CLD, 57.6 per 106 births (95% CI:52.5–63.2) for CSD, and 9.2 per 106 births (95% CI: 2.5–3.7) for CTD.
Conclusion: The prevalence of CSD was found to be relatively high, while for other congenital disaccharidase deficiencies, the estimated prevalence was very low.
Le texte complet de cet article est disponible en PDF.Keywords : congenital disaccharidase deficiencies, LCT, SI, TREH, MGAM, gnomAD
Plan
Vol 29 - N° 8
P. 599-603 - novembre 2022 Retour au numéro
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