Inflammatory Response in Preterm and Very Preterm Newborns with Sepsis

Author:

Segura-Cervantes Enrique1,Mancilla-Ramírez Javier23,González-Canudas Jorge4,Alba Erika4,Santillán-Ballesteros René5,Morales-Barquet Deneb6,Sandoval-Plata Gabriela4,Galindo-Sevilla Norma5ORCID

Affiliation:

1. Departamento de Epidemiología, Instituto Nacional de Perinatología, Secretaría de Salud (SSa), Montes Urales 800, Colonia Lomas de Virreyes, 11000 Mexico City, Mexico

2. Escuela Superior de Medicina (ESM), Instituto Politécnico Nacional (IPN), Avenida Salvador Diaz Miron S/N, Esquina Plan de San Luis, Colonia Casco de Santo Tomás, Delegación Miguel Hidalgo, 11340 Mexico City, Mexico

3. Hospital de la Mujer, SSa, Prolongación Salvador Diaz Miron 374, Colonia Casco de Santo Tomás, Delegación Miguel Hidalgo, 11340 Mexico City, Mexico

4. Laboratorio Silanes, Amores 1304, Colonia del Valle, 03100 Mexico City, Mexico

5. Departamento de Infectología e Inmunología, Instituto Nacional de Perinatología, SSa, Montes Urales 800, Colonia Lomas de Virreyes, 11000 Mexico City, Mexico

6. UCIREN, Instituto Nacional de Perinatología, SSa, Montes Urales 800, Colonia Lomas de Virreyes, 11000 Mexico City, Mexico

Abstract

The response of the adaptive immune system is usually less intense in premature neonates than term neonates. The primary objective of this study was to determine whether immunological parameters vary between preterm (PT) neonates (≥32 weeks of gestational age) and very preterm (VPT) neonates (<32 weeks of gestational age). A cross-sectional study was designed to prospectively follow PT and VPT neonates at risk of developing sepsis. Plasma concentrations of IFN-γ, TNF-α, IL-6, IL-4, and IL-10 were detected using flow cytometry. C-reactive protein (C-RP) and the complex SC5b-9 were detected in the plasma using commercial kits. A total of 83 patients were included. The laboratory results and clinical histories showed that 26 patients had sepsis; 14 were VPT, and 12 were PT. The levels of C-RP, SC5b-9 (innate immune response mediators), and IL-10 or IL-4 (anti-inflammatory cytokines) were elevated during sepsis in both groups. IFN-γ, TNF-α, and IL-6 (proinflammatory cytokines) were differentially elevated only in PT neonates. The VPT neonates with sepsis presented increases in C-RP, SC5b-9, and anti-inflammatory cytokines but not in proinflammatory cytokines, whereas PT neonates showed increases in all studied mediators of inflammation.

Funder

Instituto Nacional de Perinatología

Publisher

Hindawi Limited

Subject

Cell Biology,Immunology

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