Diagnostic potential of hepcidin testing in pediatrics

Area of Science:

• Pediatric Endocrinology
• Clinical Chemistry
• Hematology

Background:

• Hepcidin regulates iron absorption and release, but standardized pediatric reference intervals are lacking.
• Assay variability complicates clinical decisions regarding iron disorders in children.
• This study aims to establish pediatric hepcidin measurement and assess its diagnostic utility.

Purpose of the Study:

• Establish serum hepcidin reference values in healthy children.
• Investigate hepcidin's role in diagnosing and managing pediatric iron disorders.
• Evaluate hepcidin's potential to differentiate anemia types in children.

Main Methods:

• Serum hepcidin measured using an automated commercial immunoassay.
• Reference values determined from 86 healthy children.
• Hepcidin levels assessed in 52 children with various iron-related conditions.

Main Results:

• Established pediatric reference ranges for hepcidin.
• Observed significantly higher hepcidin in postpubertal females vs. males (P=0.039).
• Hepcidin was elevated in pediatric anemia of chronic disease (Systemic Juvenile Idiopathic Arthritis) and decreased with anakinra treatment.

Conclusions:

• Provides crucial reference values for pediatric hepcidin.
• Highlights sex- and puberty-related differences in pediatric hepcidin levels.
• Suggests serum hepcidin can distinguish inflammatory anemia (JIA) from iron deficiency anemia in children.