Kidney iron deposition by R2* is associated with haemolysis and urinary iron.

Abstract:

:Kidney iron deposition measured by R2* (magnetic resonance imaging) MRI is posited to result from tubular reabsorption of filtered haemoglobin due to intravascular haemolysis. In chronically transfused sickle cell disease (SCD), R2* is elevated and positively correlated with lactate dehydrogenase (LDH). To account for contributions to renal iron from systemic iron overload, we evaluated kidney R2*, urinary iron and haemolysis markers in 62 non-transfused SCD patients. On multivariate analysis, kidney R2* was associated with urinary iron and LDH (R2  = 0·55, P < 0·0001). Our study confirms that kidney R2* is associated with intravascular haemolysis and raises important questions regarding the role of iron in SCD nephropathy.

journal_name

Br J Haematol

authors

Denton CC,Detterich JA,Coates TD,Wood JC

doi

10.1111/bjh.17085

subject

Has Abstract

pub_date

2020-11-20 00:00:00

eissn

0007-1048

issn

1365-2141

pub_type

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