Erschienen in:
01.10.2010 | Original Article
Reference serum cystatin C levels in Japanese children
verfasst von:
Osamu Uemura, Katsumi Ushijima, Takuhito Nagai, Takuji Yamada, Hideki Hayakawa, Yayoi Nabeta, Yoshiko Shinkai, Kouichi Koike, Masaki Kuwabara
Erschienen in:
Clinical and Experimental Nephrology
|
Ausgabe 5/2010
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Abstract
Background
Single measurements of serum cystatin C (cysC) concentration have generally been used to determine glomerular filtration rate (GFR) in adults. Since GFR varies to some extent among children, we attempted to determine reference serum cysC concentrations for Japanese children.
Methods
Serum cysC concentrations were determined by a latex particle-enhanced turbidimetric immunoassay in children who did not present with kidney disease or infectious disease, and the relationship between age and serum cysC level was assessed.
Results
We found that reference serum cysC levels gradually decreased during the first year after birth, thereafter becoming constant. Mean serum cysC concentration in children aged 1 year (0.76 ± 0.10 mg/L) was slightly higher than in children aged ≥2 years (0.70 ± 0.09 mg/L).
Conclusion
Our reference values will be applicable for screening renal function in Japanese children.