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Manganese superoxide dismutase gene polymorphisms in psoriatic arthritis

Jeng-Hsien Yen1, Wen-Chun Tsai, Chia-Hui Lin

  • 1Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan. jehsye@kmu.edu.tw

Disease Markers
|July 23, 2004
PubMed

Insights

Manganese superoxide dismutase (MnSOD) gene 1183C polymorphisms may increase the risk of developing psoriatic arthritis. This study found a higher frequency of the MnSOD 1183C variant in patients compared to healthy individuals.

Area of Science:

  • Genetics
  • Immunology
  • Rheumatology

Background:

  • Psoriatic arthritis is a chronic inflammatory condition.
  • The genetic factors contributing to psoriatic arthritis susceptibility are not fully understood.
  • Superoxide dismutase enzymes play a role in cellular defense against oxidative stress.

Purpose of the Study:

  • To investigate the association between manganese superoxide dismutase (MnSOD) gene polymorphisms and psoriatic arthritis risk.
  • To determine if specific MnSOD genotypes or phenotypes are more prevalent in psoriatic arthritis patients.

Main Methods:

  • Polymerase chain reaction/restriction fragment length polymorphisms (PCR/RFLP) was used to analyze MnSOD gene polymorphisms.
  • The study included 52 patients diagnosed with psoriatic arthritis and 90 healthy controls.
  • Genotype and phenotype frequencies of MnSOD 1183C/T were compared between the patient and control groups.

Main Results:

  • The genotype frequency of MnSOD 1183C/T was significantly higher in psoriatic arthritis patients compared to controls.
  • Conversely, the MnSOD 1183T/T genotype frequency was significantly lower in patients.
  • The phenotype frequency of MnSOD 1183C was significantly increased in psoriatic arthritis patients.

Conclusions:

  • MnSOD 1183C polymorphisms may be a contributing factor to the development of psoriatic arthritis.
  • These findings suggest a potential role for oxidative stress pathways in psoriatic arthritis pathogenesis.
  • Further research is warranted to elucidate the precise mechanisms linking MnSOD gene variations to psoriatic arthritis.

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