Bactericidal Permeability Increasing Protein Gene Variants in Children with Sepsis
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Objective: To evaluate the role of genetic polymorphisms of the bactericidal permeability increasing protein (BPI) in pediatric patients with sepsis.
Design: Prospective, single-center, case-control study at the pediatric intensive care unit (PICU) of a university hospital.
Patients: 345 consecutive pediatric patients admitted to the PICU with fever, systemic inflammatory response syndrome (SIRS), sepsis, severe sepsis, septic shock, or multiple organ distress syndrome (MODS).
Interventions: DNA was isolated and two BPI gene polymorphisms BPI (G545 > C) Taq and BPI (A645[ > G) 216 were studied in patients and compared with healthy controls.
Measurements And Results: Genetic analysis of the BPI Taq gene revealed significant differences between healthy controls and the subgroup of febrile patients (p = 0.0243), the subgroup of SIRS and sepsis (p = 0.0101), and the subgroup of severe sepsis, septic shock, and MODS (p = 0.0027), respectively. No statistically significant differences for the BPI 216 gene polymorphism were found between patient and healthy control groups. A statistically significant predisposition to Gram-negative sepsis in patients carrying the BPI Taq GG variant together with the BPI 216 AG or GG variant was revealed (p = 0.0081), and these haplotypes were also associated with death due to sepsis-related complications.
Conclusion: BPI Taq gene polymorphism is the accurate predictor of the severity of sepsis in children admitted to the PICU.
Multilevel omics for the discovery of biomarkers in pediatric sepsis.
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