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[Primary hyperoxaluria].

Pierre Cochat¹, Sonia Fargue, Justine Bacchetta

¹Centre de référence des maladies rénales rares, hôpital Femme-Mère-Enfant, hospices civils de Lyon, 59, boulevard Pinel, 69677 Bron cedex, France. pierre.cochat@chu-lyon.fr

Nephrologie & Therapeutique

|June 4, 2011

Summary

This summary is machine-generated.

Primary hyperoxalurias are rare genetic disorders affecting glyoxylate metabolism. Early diagnosis and treatment, including pyridoxine and transplantation, are crucial for managing kidney damage and systemic oxalate deposition.

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Area of Science:

Biochemistry
Genetics
Metabolic Disorders

Context:

Primary hyperoxalurias (PH) are rare, inherited metabolic disorders.
Characterized by excessive oxalate production and deposition.
Leading to progressive kidney disease and systemic complications.

Purpose:

To summarize the pathophysiology, diagnosis, and management of Primary Hyperoxalurias.
To highlight the importance of early intervention and treatment options.

Summary:

Primary hyperoxalurias are autosomal recessive disorders of glyoxylate metabolism, with Primary Hyperoxaluria type 1 (PH1) being the most common form in Europe.
PH1 results from alanine-glyoxylate aminotransferase deficiency, causing hyperoxaluria, kidney stones, and nephrocalcinosis.
Progressive kidney dysfunction leads to systemic oxalate deposition, particularly in the skeleton.
Diagnosis involves urine oxalate measurement and genotyping, enabling prenatal diagnosis.
Conservative management includes hydration, crystallization inhibitors, and pyridoxine.
Combined liver-kidney transplantation is recommended before advanced renal disease to prevent systemic deposition.
Future therapies may include hepatocyte transplantation and chaperone molecules.

Impact:

Early diagnosis and treatment can significantly improve renal survival.
Timely transplantation is vital to prevent severe systemic complications.
Understanding PH pathophysiology guides therapeutic strategies and research for novel treatments.