Assessment of Interleukin-27 and Chemokine RANTES as Biomarkers for Early Onset Neonatal Sepsis.

Early-onset neonatal sepsis (EONS) is a global health problem with high morbidity and mortality rates. Early diagnosis is a critical issue in determining treatment strategies. There is no single diagnostic test that can fulfill all requirements of the ideal biomarker yet. The current study enrolled 47 cases with EONS, admitted to the Neonatal Intensive Care Units at Beni-Suef University teaching Hospital from February 2017 to November 2017 and 37 apparently healthy controls. All were subjected to routine laboratory tests and serum concentration of IL-27 and regulation on activation normal T-cell expressed and secreted (RANTES) were measured. Significantly higher concentrations of IL-27 were observed in the septic group while RANTES were significantly lower in comparison to the controls. Moreover, there were no significant correlations between levels of IL-27 and RANTES either in the septic or the control group. Sensitivity, specificity, positive and negative predictive values for IL-27 were 93.6%, 81.1%, 86.3% and 90.9, respectively while for RANTES such values were 68.1%, 78.4%, 80% and 65.9%, respectively. A combination of both markers showed 97.3% specificity for sepsis. In conclusion, IL-27 is a useful and sensitive biomarker either individually or combined with other candidate biomarkers like RANTES.

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