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A novel heterozygous mutation of the NPHS1 gene in a Chinese child with congenital nephrotic syndrome: A case report

Congenital nephrotic syndrome (CNS) is a heterogeneous disorder in which massive proteinuria, hypoproteinemia, and hyperlipidemia and marked edema are the main manifestations before 3 months-of-age. Here, we present a case involving the genetic diagnosis of a child with CNS. PATIENT CONCERNS: A 31-d...

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Detalles Bibliográficos
Autores principales: Xie, Dan, Wu, Jiangfen, Zhang, Wenyi, Jin, Tingting, Wu, Peng, An, Banquan, Huang, Shengwen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Lippincott Williams & Wilkins 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9936045/
https://www.ncbi.nlm.nih.gov/pubmed/36800604
http://dx.doi.org/10.1097/MD.0000000000032970
Descripción
Sumario:Congenital nephrotic syndrome (CNS) is a heterogeneous disorder in which massive proteinuria, hypoproteinemia, and hyperlipidemia and marked edema are the main manifestations before 3 months-of-age. Here, we present a case involving the genetic diagnosis of a child with CNS. PATIENT CONCERNS: A 31-day-old male infant with diarrhea for 25 days and generalized edema for more than 10 days. There was no family history of kidney disease. On proband whole exome sequencing, a compound heterozygous mutation of the NPHS1 gene was identified, including a novel in-frame mutation in exon 14 (c.1864_1866dupACC p. T622dup) and a missense mutation in exon 8 (c.928G>A p. D310N). DIAGNOSES: Based on the clinical and genetic findings, this patient was finally diagnosed with CNS. INTERVENTIONS: The main treatment options for the patient were 2-fold: anti-infective treatment and symptomatic treatment. OUTCOMES: The patient died in follow-up 2 months later; the specific reason for death was unclear. LESSONS: Whole exome sequencing and Sanger sequencing confirmed that the infant had CNS. Our study identified a novel mutation in an infant, thus expanding the gene-mutation spectrum of the NPHS1 gene, thus providing an efficient prenatal screening strategy and early genetic counseling.