The interrelationship between hepcidin, vitamin D, and anemia in children with acute infectious disease

Area of Science:

• Pediatric Hematology
• Nutritional Immunology
• Infectious Diseases

Background:

• Hepcidin regulates iron metabolism and is suppressed by vitamin D.
• Acute infections can influence iron status and hepcidin levels.
• The relationship between vitamin D, hepcidin, and anemia in infected children is under investigation.

Purpose of the Study:

• To investigate the correlation between hepcidin and vitamin D levels in anemic children experiencing acute infections.
• To determine the association between vitamin D status and the prevalence of anemia in this population.

Main Methods:

• A prospective study involving 90 pediatric patients.
• Collected blood samples for Interleukin-6 (IL-6), hepcidin, iron status, and 25-hydroxyvitamin D (25-OHD) within 72 hours of admission.
• Compared biochemical markers between children with infectious disease (with and without anemia) and those hospitalized for noninfectious causes.

Main Results:

• Anemic children with infections showed higher IL-6 and hepcidin, and lower 25-OHD, iron, and transferrin compared to controls.
• A serum 25-OHD level below 20 ng/ml significantly increased the odds of anemia (OR: 6.1).
• Positive correlation found between hepcidin and ferritin (R²=0.47), and negative correlation between hepcidin and transferrin (R²=0.57).

Conclusions:

• Elevated IL-6 and reduced 25-OHD may contribute to increased hepcidin levels during acute infections.
• These changes can subsequently lead to hypoferremia and anemia in pediatric patients.
• Vitamin D status is a critical factor in the development of anemia associated with acute infections in children.