S100B urine concentrations in late preterm infants are gestational age and gender dependent

  • Andrea Sannia
  • , Francesco Maria Risso
  • , Luc J. I. Zimmermann
  • , Antonio W. D. Gavilanes
  • , Hans J. Vles
  • , Diego Gazzolo*
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: Late preterm deliveries (LP, between 34 and 36 wks), have considerably increased in the last decades. About 20-25% of LP infants who require intensive care and morbidity on public health are of great magnitude. Therefore, we aimed at offering a reference curve in LP period of a well-established neurotrophic and brain damage marker namely S100B protein. Methods: We collected, between December 2009 and March 2012, urine samples, at first void (within 6-hours from birth) for S100B assessment, in 277 healthy LP infants consecutively admitted to our units. Standard clinical and laboratory monitoring parameters were also recorded. S100B was measured by using a commercially available immunoluminometric assay. Results: S100B pattern in LP infants was characterized by a slight decrease in protein's concentration from 34 to 35 wks. From 35 wks onwards S100B started to increase reaching a significant difference (P = 0.008) at 36 wks. When corrected for gender, significantly higher (P
Original languageEnglish
Pages (from-to)31-34
Number of pages4
JournalClinica Chimica Acta
Volume417
DOIs
Publication statusPublished - 18 Feb 2013

Keywords

  • S100B
  • Biomarkers
  • Late-preterm
  • Brain development

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