Abstract:
BACKGROUND:Because the nuclear factor-κB (NF-κB) coupled pathway is believed to amplify inflammation prevailing in sepsis, the authors tested the hypotheses that the insertion-deletion polymorphism (-94ins/delATTG) (1) alters nuclear translocation of nuclear factor-κB and activator protein-1 (NF-κB1) in monocytes after lipopolysaccharide stimulation; (2) affects lipopolysaccharide-induced NF-κB1 messenger RNA expression, tumor necrosis factor α concentrations, and tissue factor activity; and (3) may be associated with increased 30-day mortality in patients with sepsis. METHODS:Nuclear translocation of NF-κB1 in monocytes after lipopolysaccharide stimulation from healthy blood donors was performed with immunofluorescence staining (n = 5 each). Lipopolysaccharide-induced NF-κB1 messenger RNA expression was measured with real-time polymerase chain reaction (PCR; n = 60), tumor necrosis factor α concentrations with a multiplexing system kit (n = 60), and tissue factor activity with thromboelastometry (n = 105). In a prospective study, multivariate proportional hazard analysis tested 30-day mortality in patients with sepsis (n = 143). METHODS AND RESULTS:The homozygous deletion genotype compared with the homozygous insertion genotype was associated with a nearly twofold increase in nuclear translocation of NF-κB1 (P = 0.001), a threefold difference in NF-κB1 messenger RNA expression (P = 0.001), and a twofold increase in tissue factor expression (P = 0.021). The deletion allele in adults with severe sepsis was tested as an independent prognostic factor for 30-day mortality (hazard ratio, 2.3; 95% CI, 1.13-4.8; P = 0.022). Mortality was 25% for homozygous insertion genotypes but 41% for combined heterozygous deletion/homozygous deletion genotypes (P = 0.034). CONCLUSION:The deletion allele of the NFκB1 insertion-deletion (-94ins/delATTG) polymorphism is associated with increased 30-day mortality in patients with severe sepsis and increased reaction of the innate immune system.
journal_name
Anesthesiologyjournal_title
Anesthesiologyauthors
Adamzik M,Schäfer S,Frey UH,Becker A,Kreuzer M,Winning S,Frede S,Steinmann J,Fandrey J,Zacharowski K,Siffert W,Peters J,Hartmann Mdoi
10.1097/ALN.0b013e318277a652subject
Has Abstractpub_date
2013-01-01 00:00:00pages
123-33issue
1eissn
0003-3022issn
1528-1175pii
00000542-201301000-00022journal_volume
118pub_type
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