Abstract
Background: Cardiovascular disease is the leading cause of death in renal transplant recipients. An association between haptoglobin genotype 2-2 and cardiovascular disease has been found in patients with diabetes mellitus and liver transplant recipients. To date, the role of haptoglobin genotype after renal transplantation has not been studied. Methods: In this single-center retrospective cohort study of 1975 adult Norwegian transplant recipients, who underwent transplantation between 1999 and 2011, we estimated the risk of all-cause and cardiovascular mortality and overall and death-censored graft loss for patients with haptoglobin genotype 2-2 compared to genotype 2-1 or 1-1, after adjustment for confounders and competing risks. Results: We found no associations between haptoglobin genotype 2-2 and cardiovascular mortality (subdistributional hazard ratio 1.08, 95% confidence interval 0.78-1.49; P = .63). We also failed to detect any association between haptoglobin 2-2 genotype and all-cause mortality, overall graft loss, and death-censored graft loss. Similar results were found in the subpopulation of transplant recipients with diabetes. Conclusion: In this large cohort of kidney transplant recipients, we could not demonstrate any association between haptoglobin 2-2 genotype and patient or graft survival after renal transplantation.
Original language | English |
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Journal | Progress in Transplantation |
Volume | 27 |
Issue number | 4 |
Pages (from-to) | 386-391 |
Number of pages | 6 |
ISSN | 1526-9248 |
DOIs | |
Publication status | Published - 2017 |
Keywords
- kidney transplantation recipients
- cardiovascular system
- mortality
- renal graft loss
- cardiovascular disease
- haptoglobin genotype
- oxidative stress