The influences of CD14 -260C>T polymorphism on survival in ICU critically ill patients.
In order to analyze the effect of the two different versions of the cluster of differentiation 14 (CD14) receptor recognizing gene on survival, we determined the -260C>T single nucleotide polymorphism (SNP) frequencies in 514 critically ill patients. We compared the -260TT homozygotes with -260C allele carriers (-260CC and -260CT genotypes) and we demonstrated--260TT patients had the highest survival rate (82% vs 64%; p < 0.001; OR = 2.52, 95% CI = 1.43-4.46). We performed binary logistic regression, incorporating both -260C>T genotype groups and the main clinical predictors to exclude other risk factors that could influence the outcome from critical illness: higher age, APACHE II score, and length of stay at hospital, and the occurrence of sepsis and septic shock were risk factors to Intensive Care Unit (ICU) patient's mortality, but the -260TT genotype was protective factor toward survival (p = 0.001; OR = 3.08 95%CI = 1.54-5.98). Among septic and septic shock patients, -260TT genotype was also protective factor toward survival (p = 0.001; OR = 3.11 95%CI = 1.63-6.66 to septic patients, and p = 0.001; OR = 3.80 95%CI = 1.68-8.58 to patients with septic shock). Our results and our hypothesis suggest that the higher -260TT genotype frequency in ICU survivor patients is possibly explained by a beneficial effect on innate immunity signaling.
Fallavena
Paulo R V
PR
Laboratório de Genética Humana e Molecular, Hospital São Lucas, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil.
Borges
Thiago J
TJ
Paskulin
Diego D
DD
Paludo
Francis J O
FJ
Goetze
Thayse B
TB
de Oliveira
Jarbas R
JR
Nóbrega
Otávio T
OT
Dias
Fernando S
FS
Alho
Clarice S
CS
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016638:Critical Illness / Q000401:mortality*; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006720:Homozygote; D006801:Humans; D007113:Immunity, Innate; D007362:Intensive Care Units; D018950:Lipopolysaccharide Receptors / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D016019:Survival Analysis
D018950:Lipopolysaccharide Receptors