Citrate in autosomal dominant polycystic kidney disease: biomarker or therapeutic agent?

Le résumé fourni par la source

PURPOSE OF REVIEW: This review highlights the latest findings regarding hypocitraturia in autosomal dominant polycystic kidney disease (ADPKD), from both experimental and clinical studies, exploring the underlying pathophysiology and potential therapeutic approach. RECENT FINDINGS: Experimental studies have shown that the lodging of microcrystals in the tubules can trigger cyst formation and growth in polycystic kidney disease (PKD). ADPKD patients are prone to developing hypocitraturia in early stages, which could predispose to calcium microcrystal formation. Low urinary citrate excretion has been associated with a more rapid decline in eGFR and poorer renal survival in ADPKD patients. Animal studies employing citrate supplementation have shown promising effects on preserving the decline in estimated glomerular filtration rate (eGFR) and cyst growth. SUMMARY: Current knowledge suggests that urinary citrate could be incorporated into existing prognostic markers for disease progression and potential adjuvant therapy in ADPKD, but further clinical studies to support such hypothesis must be undertaken.

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