4.5 Article

Serum YKL-40 as a Potential Biomarker for Sepsis in Term Neonates-A Pilot Study

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CHILDREN-BASEL
卷 10, 期 5, 页码 -

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MDPI
DOI: 10.3390/children10050772

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serum YKL-40; chitinase-3-like-1 protein; neonatal sepsis; biomarker; neonates; infants

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Although YKL-40 is a promising diagnostic biomarker of sepsis in adults, its value in neonatal sepsis is not known. This pilot case-control study aimed to assess the levels and diagnostic value of serum YKL-40 in term neonates with sepsis, and compared it with other inflammatory biomarkers. The results showed that YKL-40 levels were significantly elevated during the acute phase of sepsis and could be used as an indicator of sepsis in term neonates.
Although YKL-40 is a promising diagnostic biomarker of sepsis in adults, its value in neonatal sepsis is not known. The study objectives included assessing the levels and diagnostic value of serum YKL-40 in term neonates with sepsis and comparing YKL-40 with other commonly used inflammatory biomarkers. In this pilot case-control study, 45 term neonates (30 septic and 15 non-septic, as controls), 4 to 28 days old, were prospectively studied. The International Pediatric Sepsis Consensus Conference criteria were applied to diagnose sepsis. During the acute phase (admission) and remission of sepsis, blood samples were collected from cases (while from controls they were only collected once) for routine laboratory tests, cultures, and the measurement of serum YKL-40 levels via Elisa. In the acute phase of sepsis, YKL-40 levels were significantly elevated in comparison with remission (p = 0.004) and controls (p = 0.003). YKL-40 levels did not differ significantly between patients in remission and controls (p = 0.431). Upon admission, YKL-40 levels correlated positively with white blood count, absolute neutrophil count, and CRP levels. Via ROC analysis, it was shown that YKL-40 levels upon admission were a significant indicator of sepsis (AUC = 0.771; 95% CI 0.632-0.911; p = 0.003). Serum YKL-40 might be considered as an adjuvant biomarker of sepsis in term neonates.

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