Fetuin-A serum concentrations in healthy children
Marianne Wigger1, Jan Schaible, Jutta Muscheites
1Department of Pediatrics, University Children's Hospital Rostock, University of Rostock, Germany.
Insights
Serum fetuin-A levels are consistent across healthy children and adolescents, independent of age and gender. These findings establish crucial reference ranges for pediatric populations, aiding in cardiovascular risk assessment.
Area of Science:
- Pediatric Endocrinology
- Cardiovascular Biomarkers
- Clinical Chemistry
Background:
- Serum fetuin-A is a recognized risk marker for myocardial infarction and stroke in adults.
- It is also linked to vascular calcifications in chronic kidney disease patients.
- Lack of age- and gender-specific reference values for fetuin-A in children and adolescents hinders clinical application.
Purpose of the Study:
- To establish age- and gender-related reference values for serum fetuin-A concentrations in a healthy pediatric population.
- To determine if serum fetuin-A levels vary with age or gender in children and adolescents.
Main Methods:
- Serum fetuin-A concentrations were measured in 246 healthy children and adolescents using an ELISA kit.
- Subjects were stratified into five age groups (<1, 1-5, 6-11, 12-15, and ≥16 years).
- Serum protein and albumin were also measured; gender distribution was equal across age cohorts.
Main Results:
- Serum fetuin-A concentrations were normally distributed within all age cohorts.
- Fetuin-A levels were found to be independent of both age and gender.
- The reference range (mean ± 1.96 SD) for serum fetuin-A was determined to be 0.22-0.70 g/L.
Conclusions:
- Serum fetuin-A concentrations are consistent and do not vary significantly with age or gender in healthy pediatric individuals.
- The established reference ranges are comparable to those found in adults using the same assay.
- These findings provide essential data for the clinical assessment of cardiovascular risk in pediatric patients.
Background:
Serum fetuin-A has been shown to be a strong risk marker for myocardial infarction/stroke in the general population, and has been associated with vascular calcifications in patients with chronic kidney disease. Although these issues are worthy of being addressed in children and adolescents as well, adequate age- and gender-related reference values are missing.
Method:
Within a healthy paediatric population (n = 246), fetuin-A serum concentrations were determined (ELISA kit; Epitope Diagnostics, San Diego, CA, USA) essentially as described by the manufacturer. At the same time, serum protein and serum albumin were measured with established procedures (Beckman Coulter Inc., Krefeld, Germany). Subjects were stratified according to age (<1 yr [n = 25], > or =1 and <6 yr [n = 65], > or =6 and <12 yr [n = 66], > or =12 yr and <16 [n = 45] and > or =16 yr [n = 45]), and both genders were equally distributed within each age cohort.
Results:
Within each age cohort, fetuin-A serum concentrations were normally distributed, independent of age and gender and the respective reference range (mean +/- 1.96 SD) is 0.22-0.70 g/L (0.46 +/- 0.24 g/L).
Conclusion:
Fetuin-A serum concentrations are independent of age and gender in a healthy paediatric population and are well comparable with those determined in adults with the same assay.
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