A biallelic loss-of-function PDIA6 variant in a second patient with polycystic kidney disease, infancy-onset...

Area of Science:

• Genetics
• Pediatrics
• Endocrinology

Background:

• Infancy-onset diabetes is a rare condition often caused by genetic factors.
• Syndromic forms of diabetes present with multisystemic manifestations.
• Understanding the genetic basis of rare diseases is crucial for diagnosis and management.

Observation:

• A second patient presented with a constellation of severe congenital anomalies.
• The patient exhibited intrauterine growth retardation, polycystic kidney disease, infancy-onset diabetes, microcephaly, and liver fibrosis.
• Genetic analysis revealed a homozygous loss-of-function variant in the PDIA6 gene.

Findings:

• The PDIA6 loss-of-function variant is associated with a severe syndromic form of infancy-onset diabetes.
• This variant underlies a complex phenotype including renal, neurological, and hepatic dysfunction.
• The study confirms and expands the clinical spectrum associated with PDIA6 deficiency.

Implications:

• This research refines the understanding of PDIA6-related disorders.
• Early genetic diagnosis can facilitate targeted monitoring and intervention for affected infants.
• Further research into PDIA6 function may reveal novel therapeutic targets for related conditions.