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Clinical diagnosis of lipocalin 2 detection associated with neutrophil gelatinase (UNGAL) in urine in children with pyelonephritis debut
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01.09.2018 |
Yeremeyeva A.
Dlin V.
Korsunskiy A.
Zaykova N.
Bondarenko E.
Turina I.
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Pediatriya - Zhurnal im G.N. Speranskogo |
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© 2018; Pediatria Ltd. All rights reserved. Search for biomarkers, reflecting the severity of inflammation and damage to kidney tissue in children with pyelonephritis is very important. Objective of the research - to study clinical significance of lipocalin 2 associated with neutrophil gelatinase (uNGAL) in urine as a marker of renal parenchymal lesion severity in children with pyelonephritis debut. Study materials and methods: 73 children with pyelonephritis debut hospitalized in the nephrologic department were examined. Children were divided into 2 groups: 1st group - 41 children with acute pyelonephritis (without USO abnormalities), 2nd group - 32 children with acute pyelonephritis combined with various abnormalities of urinary system organs. In all patients, the levels of urea, creatinine, cystatin C, procalcitonin, renal concentration capacity, uric excretion of lipocalin 2 associated with neutrophil gelatinase (uNGAL) were assessed. Results: the study revealed that the level of uNGAL/Cr excretionat the admission in children of both main groups did not differ significantly. A positive correlation was found between uNGAL/Cr value and cystatin C level in patients of the 2nd group. All children had a direct correlation between the duration of febrile fever from the onset of antibiotic therapy and the uNGAL/Cr excretion level. The study also revealed a correlation between uNGAL/Cr excretion level in the acute period of the disease and the degree of renal parenchymal lesion in children from the first and second groups confirmed by static DMCA nephroscintigraphy. Conclusion: a high urinary excretion of uNGAL/Cr in patients with acute pyelonephritis indicates a marked renal parenchyma lesion and requires static nephroscintigraphy with further observation, but not earlier than 6 months after the normalization of clinical-laboratory indicators.
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