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Association of REL polymorphisms and outcome of patients with septic shock

Abstract : Background: cRel, a subunit of NF‑κB, is implicated in the inflammatory response observed in autoimmune disease. Hence, knocked‑out mice for cRel had a significantly higher mortality, providing new and important functions of cRel in the physiopathology of septic shock. Whether genetic variants in the human REL gene are associated with severity of septic shock is unknown. Methods: We genotyped a population of 1040 ICU patients with septic shock and 855 ICU controls for two known polymorphisms of REL; REL rs842647 and REL rs13031237. Outcome of patients according to the presence of REL variant alleles was compared. Results: The distribution of REL variant alleles was not significantly different between patients and controls. Among the septic shock group, REL rs13031237*T minor allele was not associated with worse outcome. In contrast, REL rs842647*G minor allele was significantly associated with more multi‑organ failure and early death [OR 1.4; 95 % CI (1.02–1.8)]. Conclusion: In a large ICU population, we report a significant clinical association between a variation in the human REL gene and severity and mortality of septic shock, suggesting for the first time a new insight into the role of cRel in response to infection in humans.
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Submitted on : Friday, July 29, 2016 - 4:25:19 PM
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Julie Toubiana, Emilie Courtine, Frederic Tores, Pierre Asfar, Cédric Daubin, et al.. Association of REL polymorphisms and outcome of patients with septic shock. Annals of Intensive Care, SpringerOpen, 2016, 6 (1), pp.28. ⟨10.1186/s13613-016-0130-z⟩. ⟨inserm-01350114⟩

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