Manganese superoxide dismutase, glutathione peroxidase and catalase gene polymorphisms and clinical outcomes in acute kidney injury

Ren Fail. 2016;38(3):372-7. doi: 10.3109/0886022X.2015.1135468. Epub 2016 Jan 20.


Introduction: The aim of this study was to evaluate the potential association of single gene polymorphisms of manganese superoxide dismutase (MnSOD), glutathione peroxidase 1 (GPX1) and catalase (CAT) with clinical outcomes of acute kidney injury (AKI).

Materials and methods: Ninety AKI patients and 101 healthy volunteers were included in the study. Determination of MnSOD rs4880, GPX1 rs1050450 and CAT rs769217 polymorphisms was performed using real-time polymerase chain reaction amplification. The duration of hospitalization of AKI patients, dialysis and intensive care requirements, sepsis, oliguria and in-hospital mortality rates were assessed.

Results: The MnSOD, GPX1 and CAT genotypes and allele frequencies of AKI patients did not differ significantly from those of healthy controls. In patients with a T allele in the ninth exon of the CAT gene, intensive care requirements were greater than those of patients with the CC genotype (p = 0.04). In addition, sepsis and in-hospital mortality were observed significantly more frequently in patients with a T allele in the ninth exon of the CAT gene (p = 0.03). Logistic regression analysis determined that bearing a T allele was the primary determinant of intensive care requirements and in-hospital mortality, independent of patient age, gender, presence of diabetes and dialysis requirements (OR 6.10, 95% CI 1.34-27.81, p = 0.02 and OR 10.25, 95% CI 1.13-92.80, p = 0.04, respectively).

Conclusion: Among AKI patients in the Turkish population, hospital morbidity and mortality were found to be more frequent in patients bearing a T allele of the rs769217 polymorphism of the CAT gene.

Keywords: Acute kidney injury; catalase; gene polymorphism; glutathione peroxidase; manganese superoxide dismutase.

MeSH terms

  • Acute Kidney Injury / genetics*
  • Adult
  • Aged
  • Aged, 80 and over
  • Alleles
  • Case-Control Studies
  • Catalase / genetics*
  • Cross-Sectional Studies
  • Female
  • Gene Frequency
  • Genetic Predisposition to Disease
  • Glutathione Peroxidase / genetics*
  • Hospital Mortality*
  • Humans
  • Logistic Models
  • Male
  • Middle Aged
  • Polymorphism, Single Nucleotide
  • Superoxide Dismutase / genetics*
  • Turkey


  • glutathione peroxidase GPX1
  • Catalase
  • Glutathione Peroxidase
  • Superoxide Dismutase