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Primary hyperoxaluria

Cochat, P; Fargue, S; Bacchetta, J; Bertholet-Thomas, A; Sabot, JF; Harambat, J; (2011) Primary hyperoxaluria. NEPHROL THER , 7 (4) 249 - 259. 10.1016/j.nephro.2011.03.004.

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Abstract

Primary hyperoxalurias are rare recessive inherited inborn errors of glyoxylate metabolism. They are responsible for progressive renal involvement, which further lead to systemic oxalate deposition, which can even occur in infants. Primary hyperoxaluria type 1 is the most common form in Europe and is due to alanine-glyoxylate aminostransferase deficiency, a hepatic peroxisomal pyridoxin-dependent enzyme. Therefore primary hyperoxaluria type 1 is responsible for hyperoxaluria leading to aggressive stone formation and nephrocalcinosis. As glomerular filtration rate decreases, systemic oxalate storage occurs throughout all the body, and mainly in the skeleton. The diagnosis is first based on urine oxalate measurement, then on genotyping, which may also allow prenatal diagnosis to be proposed. Conservative measures - including hydration, crystallization inhibitors and pyridoxine - are safe and may allow long lasting renal survival, provided it is given as soon as the diagnosis has been even suspected. No dialysis procedure can remove enough oxalate to compensate oxalate overproduction from the sick liver, therefore a combined liver and kidney transplantation should be planned before advanced renal disease has occurred, in order to limit/avoid systemic oxalate deposition. In the future, primary hyperoxaluria type 1 may benefit from hepatocyte transplantation, chaperone molecules, etc. (C) 2011 Association Societe de nephrologie. Published by Elsevier Masson SAS. All rights reserved.

Type:Article
Title:Primary hyperoxaluria
DOI:10.1016/j.nephro.2011.03.004
Keywords:Oxalosis, Primary hyperoxaluria, Nephrolithiasis, Nephrocalcinosis, Pyridoxin, Combined liver and kidney transplantation, I PRIMARY HYPEROXALURIA, RENAL EPITHELIAL-CELLS, CALCIUM-OXALATE, KIDNEY-TRANSPLANTATION, LIVER-TRANSPLANTATION, OXALOBACTER-FORMIGENES, ALLOGRAFT SURVIVAL, TYPE-1, CHILDREN, OXALOSIS
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Life Sciences > Biosciences (Division of)

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