Unlabelled: Studies in adult patients suggest that copeptin (C-terminal fragment of antidiuretin propeptide) is related to kidney and cardiovascular diseases.
Aim: The aim was to assess copeptin concentration in children with chronic kidney disease (CKD).
Materials And Methods: In a group of 38 children with CKD (age: from 4.70 to 18.00 mean 12.23±4.19 years) we evaluated: serum copeptin concentration [ng/mL], age, sex, etiology of CKD, presence of arterial hypertension (AH), medications, glomerular filtration rate (GFR), hemoglobin, calcium-phosphorus metabolism parameters, and lipids. Control group consisted of 38 healthy children aged from 5.51 to 18.0 mean 11.79±3.29 years.
Results: Serum copeptin concentration did not differ between children with CKD and healthy children (0.72±0.34 vs. 0.84±0.33 [ng/mL], p=0.088). In children with CKD there were no differences in copeptin concentration depending on sex, presence of AH, and CKD grade. In children with CKD only positive correlation between copeptin and hemoglobin concentrations was found (r=0.35, p=0.031); no other significant correlations between copeptin and clinical and biochemical parameters including GFR were revealed. Also no significant correlations were found between copeptin and evaluated parameters in the control group.
Conclusions: In children copeptin concentration does not seem to be related to kidney function. Copeptin may be a marker of hydration status in children with chronic kidney disease. There is a need for further studies evaluating clinical significance of copeptin in children with chronic kidney disease.
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