Journal
DIAGNOSTICS
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/diagnostics11020262
Keywords
NGS; congenital diarrhea disorders; genes panel
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Congenital diarrheal disorders (CDDs) are early-onset enteropathies inherited as autosomal recessive traits, requiring rapid diagnosis and specific therapy. Next-generation sequencing (NGS) panels can accurately diagnose CDD patients and identify novel pathogenic mutations.
Congenital diarrheal disorders (CDDs) are early-onset enteropathies generally inherited as autosomal recessive traits. Most patients with CDDs require rapid diagnosis as they need immediate and specific therapy to avoid a poor prognosis, but their clinical picture is often overlapping with a myriad of nongenetic diarrheal diseases. We developed a next-generation sequencing (NGS) panel for the analysis of 92 CDD-related genes, by which we analyzed patients suspect for CDD, among which were (i) three patients with sucrose-isomaltase deficiency; (ii) four patients with microvillous inclusion disease; (iii) five patients with congenital tufting enteropathy; (iv) eight patients with glucose-galactose malabsorption; (v) five patients with congenital chloride diarrhea. In all cases, we identified the mutations in the disease-gene, among which were several novel mutations for which we defined pathogenicity using a combination of bioinformatic tools. Although CDDs are rare, all together, they have an incidence of about 1%. Considering that the clinical picture of these disorders is often confusing, a CDD-related multigene NGS panel contributes to unequivocal and rapid diagnosis, which also reduces the need for invasive procedures.
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