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Role of Uremic Toxins in Early Vascular Ageing and Calcification

Nikolaos C Kyriakidis1, Gabriela Cobo2, Lu Dai3

  • 1One Health Research Group, Faculty of Medicine, Universidad de Las Américas (UDLA), Antigua Vía a Nayón, Quito EC170124, Ecuador.

Toxins
|January 6, 2021
PubMed

Insights

Uremic toxins in chronic kidney disease (CKD) cause vascular damage, leading to vascular calcification (VC) and early vascular aging (EVA). This review updates understanding of these processes and discusses potential therapeutic targets.

Area of Science:

  • Nephrology
  • Cardiovascular Medicine
  • Toxicology

Background:

  • Advanced chronic kidney disease (CKD) leads to uremic toxin accumulation, impairing cellular functions and causing chronic inflammation.
  • Uremic toxins are linked to vascular smooth muscle cell (VSMC) alterations, promoting vascular calcification (VC) and early vascular aging (EVA).
  • These vascular complications contribute significantly to the high cardiovascular mortality observed in CKD patients.

Purpose of the Study:

  • To provide an updated overview of the pathophysiology and mediators involved in VC and EVA induced by uremic toxins.
  • To discuss the clinical impact of uremic toxin-mediated vascular damage.
  • To explore potential therapeutic strategies for preventing or mitigating these harmful effects.

Main Methods:

  • Literature review and synthesis of current research on uremic toxins and vascular pathology.
  • Analysis of pathophysiological mechanisms underlying vascular calcification and early vascular aging in CKD.
  • Discussion of clinical implications and emerging therapeutic targets.

Main Results:

  • Uremic toxins disrupt biological functions, leading to inflammation and tissue damage.
  • Specific toxins contribute to VSMC changes, driving VC and EVA.
  • These vascular changes are key drivers of cardiovascular risk in CKD.

Conclusions:

  • Understanding the role of uremic toxins in VC and EVA is crucial for managing cardiovascular risk in CKD.
  • Targeting uremic toxins and their downstream effects offers potential therapeutic avenues.
  • Further research into therapeutic targets could improve outcomes for CKD patients.
Keywords:
cardiovascular diseasechronic kidney diseaseuremic toxinsvascular calcificationvascular smooth muscle cells

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