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. 2010 Mar;21(3):413-7.
doi: 10.1681/ASN.2009070705. Epub 2010 Jan 7.

High prevalence of sickle cell trait in African Americans with ESRD

Vimal K Derebail  1 , Patrick H Nachman, Nigel S Key, Heather Ansede, Ronald J Falk, Abhijit V Kshirsagar
Affiliations

High prevalence of sickle cell trait in African Americans with ESRD

Vimal K Derebail et al. J Am Soc Nephrol. 2010 Mar.

Abstract

Sickle cell trait (HbAS) associates with impaired urinary concentration, hematuria, and renal papillary necrosis, but its prevalence among African Americans with ESRD is unknown. We performed a cross-sectional study reviewing available hemoglobin phenotypes for 188 of 206 adult African-American patients receiving renal replacement therapy in four dialysis units. Results from the state newborn screening program in corresponding counties provided the local population prevalence of sickle trait among African Americans. Compared with the general African-American population, HbAS was twice as common among African Americans with ESRD (15% versus 7%, P < 0.001). Prevalence of hemoglobin C trait (HbAC) was similarly more common (5% versus 2%, P < 0.01). The higher prevalence of HbAS and HbAC in the ESRD population raises the possibility that these hemoglobinopathies contribute to a decline in kidney function, either alone or in conjunction with other known risk factors for renal disease. The potential effect of HbAS on the development and progression of CKD and its effect on the course and management of patients with ESRD deserve further study.

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Figures

Figure 1.
Figure 1.
Prevalence of hemoglobin variants from North Carolina newborn screening data and among ESRD patients. North Carolina screening data from newborn screening of African-American live births (n = 6729) from January 1, 1994 to November 30, 2008 were obtained for the three counties in which African-American ESRD patients (n = 188) from four dialysis clinics were based. *Fisher's exact test with Bonferroni correction for repeat testing. HbAS, sickle cell trait; HbAC, hemoglobin C trait.
See this image and copyright information in PMC

Comment in

  • Time to recognize an overlooked trait.
    Cavanaugh KL, Lanzkron S. Cavanaugh KL, et al. J Am Soc Nephrol. 2010 Mar;21(3):385-6. doi: 10.1681/ASN.2010010070. Epub 2010 Feb 4. J Am Soc Nephrol. 2010. PMID: 20133485 Free PMC article. No abstract available.

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