The relationship between serum fetuin a levels and fetuin gene polymorphism in hemodialysis patients

ALTUNTAŞ A., Yiğit A., Uz E., İnal S., Kidir V., Aydin B., ...More

Biomedical Research (India), vol.28, no.2, pp.495-502, 2017 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 2
  • Publication Date: 2017
  • Journal Name: Biomedical Research (India)
  • Journal Indexes: Scopus
  • Page Numbers: pp.495-502
  • Keywords: Fetuin A, Genetic polymorphism, Hemodialysis, Inflammation
  • Kütahya Health Sciences University Affiliated: No


© 2017, Scientific Publishers of India. All rights reserved.Introduction: Fetuin A, also called Heramans Schmid alpha 2 glycoprotein (AHSG), is one of the important proteins that inhibit vascular calcification. In this study, we aimed to evaluate relationship between AHSG gene polymorphism and fetuin A levels. Materials and methods: 152 patients receiving regular hemodialysis treatment and 61 healthy controls were included to this cross-sectional study. Serum fetuin-A levels were assessed by ELISA method. Thr256Ser and Thr248Met gene polymorphisms are determined by PCR-RFLP. Results: Serum fetuin A level in hemodialysis patients (330.5 ± 171.2 mg/L) was significantly lower as compared to control group (382.9 ± 138.5 mg/L) (p=0.001). Significant negative correlation between fetuin-A and C-reactive protein (CRP) (r=-0.28, p<0.0001) was found. The distribution of Thr256Ser and Thr248Met gene polymorphisms in hemodialysis and control groups were similar. In hemodialysis group, serum fetiun A levels in the patients with genotype Thr/Thr (n=94, 366.9 ± 184.2 mg/L) were found to be singnificantly higher than in the patients with genotype Thr/Ser (n=52, 278.1 ± 132.7 mg/L) and Ser/Ser (n=6, 212.5 ± 63.3 mg/L) (respectively; p=0.005, p=0.022). Unlike Thr256Ser polymorphism, serum Fetuin-A levels did not differ between Thr248Met gene polymorphism genotypes. Conclusion: The current study showed that HD patients with altered polymorphism of the AHSG Thr256Ser gene appear to be a negative prognostic factor on serum Fetuin-A levels. In other words, it can be speculated that fetuin-A Thr256Ser gene polymorphism, particularly genotypes Thr/Ser and Ser/ Ser, may be an additional promoting risk factor for vascular ossification in HD patients.