Abstract:
INTRODUCTION:The receptor for advanced glycation end products (RAGE) is a transmembrane receptor of the immunoglobulin superfamily, it plays pivotal roles in the pathogenesis of sepsis in several ways. Our previous study showed that rs1800625 (-429T/C) revealed a strong clinical relevance with sepsis morbidity rate and multiple organ dysfunction syndrome (MODS) in patients with major trauma. In this study, we enlarged the sample size, added two validation populations and examined the expression of RAGE on the surface of peripheral leukocytes to ex vivo lipopolysaccharide (LPS) stimulation in subjects with different genotypes. METHODS:Rs1800625 was genotyped using pyrosequencing in 837 Chinese Han patients with major trauma in Chongqing. We then validated the clinical relevance in 340 Zhejiang and 347 Yunnan patients. The expression of RAGE on the surface of peripheral blood mononuclear cells was measured by flow cytometric analysis. RESULTS:The results indicated that rs1800625 was significantly associated with sepsis morbidity rate and MODS in patients with major trauma in the Chongqing, Zhejiang and Yunnan districts. Patients with CC genotype had lower sepsis morbidity rate and MODS after major trauma. Furthermore, patients with CC genotype had significantly higher RAGE expression (P = 0.009). CONCLUSIONS:The rs1800625 polymorphism is a functional single nucleotide polymorphism and confers host susceptibility to sepsis and MODS in patients with major trauma.
journal_name
Crit Carejournal_title
Critical care (London, England)authors
Zeng L,Du J,Gu W,Zhang AQ,Wang HY,Wen DL,Qiu L,Yang XT,Sun JH,Zhang M,Hao J,Jiang JXdoi
10.1186/s13054-014-0727-2subject
Has Abstractpub_date
2015-01-09 00:00:00pages
6eissn
1364-8535issn
1466-609Xpii
s13054-014-0727-2journal_volume
19pub_type
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