Background: Hemodialysis patients are prone to ischemic events potentially aggravated by hypoxia. The key player in adaptation to hypoxia is hypoxia-inducible factor-1 alpha (HIF-1α). Therefore, we investigated the association of HIF-1α polymorphisms with ischemia/hypoxia-related events in hemodialysis patients. Methods: Patients on maintenance hemodialysis were enrolled from 4 training hospitals in Korea. Seven single nucleotide polymorphisms (SNP) of HIF-1α were genotyped. The association of these SNP with hypoxia-related clinical outcomes (ischemic diseases and anemia) and cancer was analyzed. Results: A total of 376 patients participated in the study. No significant difference in genotype distribution was found between subjects with and without the hypoxia-related events. Three sets of linkage disequilibrium blocks were made for haplotype analyses (rs2783778 and rs7148720 in 5′ upstream region; rs7143164 and rs10873142; rs2301113, rs11549465 and rs2057482). Of these, the CT haplotype in the first set was associated with both acute myocardial infarction and frequent intradialytic hypotension (acute myocardial infarction: adjusted odds ratio = 0.15, 95% CI: 0.03-0.69; frequent intradialytic hypotension: adjusted odds ratio = 0.29, 95% CI: 0.12-0.72). Conclusion: Genetic polymorphisms of HIF-1α were associated with acute myocardial infarction and intradialytic hypotension in hemodialysis patients. © 2009 S. Karger AG, Basel.
CITATION STYLE
Zheng, Z. L., Hwang, Y. H., Kim, S. K., Kim, S., Son, M. J., Ro, H., … Yang, J. (2009). Genetic polymorphisms of hypoxia-inducible factor-1 alpha and cardiovascular disease in hemodialysis patients. Nephron - Clinical Practice, 113(2). https://doi.org/10.1159/000228542
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