miRNAs: novel noninvasive biomarkers as diagnostic and prognostic tools in neonatal sepsis

Diagn Microbiol Infect Dis. 2023 Nov;107(3):116053. doi: 10.1016/j.diagmicrobio.2023.116053. Epub 2023 Aug 9.

Abstract

The study aimed to assess the diagnostic and prognostic value of 3 specific microRNAs (miRNAs) in early-onset neonatal sepsis (NS). We examined miR-1, miR-124, and miR-34a in 70 NS patients upon admission and compared them to 70 healthy controls by RT-PCR. The main finding of the study was the difference in miRNA expression levels between NS patients and controls. Higher expression levels of miR-1 and miR-124 were significantly associated with NS, while miR-34a expression was reduced. Among the studied miRNAs, miR-34a exhibited the highest specificity (97%) as a confirmatory test for NS. In the multivariate model, miR-1 and miR-124 were found to be significant predictors of disease progression or mortality. Overall, the study suggests that miR-1, miR-124, and miR-34a could serve as potential biomarkers for diagnosing and predicting outcomes in early-onset NS.

Keywords: miR-1; miR-124; miR-34a; miRNA; mortality; neonatal sepsis.

MeSH terms

  • Biomarkers
  • Humans
  • Infant, Newborn
  • MicroRNAs* / genetics
  • MicroRNAs* / metabolism
  • Neonatal Sepsis* / diagnosis
  • Prognosis

Substances

  • MicroRNAs
  • Biomarkers