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Uremic Toxins and Protein-Bound Therapeutics in AKI and CKD: Up-to-Date Evidence

Jia-Huang Chen1, Chih-Kang Chiang1,2,3,4

  • 1Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100233, Taiwan.

Toxins
|January 20, 2022
PubMed

Insights

Uremic toxins accumulate in acute kidney injury (AKI), worsening outcomes. Clearing these toxins, especially protein-bound uremic toxins (PBUTs), may prevent chronic kidney disease (CKD) progression.

Area of Science:

  • Nephrology
  • Toxicology
  • Biochemistry

Background:

  • Uremic toxins are harmful metabolites accumulating with declining renal function, particularly in chronic kidney disease (CKD).
  • Current CKD treatment focuses on removing uremic toxins, but their role in acute kidney injury (AKI) is understudied.
  • Uremic toxin accumulation in AKI correlates with injury severity and mortality.

Purpose of the Study:

  • To review the evidence of uremic toxin accumulation in AKI.
  • To highlight the therapeutic potential of uremic toxin clearance in preventing CKD progression after AKI.
  • To specifically focus on protein-bound uremic toxins (PBUTs).

Main Methods:

  • Literature review of existing studies on uremic toxins in AKI and CKD.
  • Analysis of evidence linking uremic toxin levels to AKI severity and outcomes.
  • Examination of therapeutic strategies for uremic toxin removal in AKI.

Main Results:

  • Uremic toxins accumulate significantly in AKI patients.
  • Early uremic toxin clearance may mitigate AKI severity.
  • PBUTs are implicated in AKI progression to CKD.

Conclusions:

  • Uremic toxin accumulation is a critical factor in AKI.
  • Targeting uremic toxins, particularly PBUTs, in AKI offers a potential strategy to prevent CKD progression.
  • Further research is needed on early intervention for uremic toxin clearance in AKI.
Keywords:
acute kidney injuryindoxyl sulfatep-cresyl sulfateprotein-bound uremic toxins

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