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Proposed Role for Quantitative Podocyturia as a Clinical Marker of Systemic Endothelial Injury: Implications for

Kamal F Badr1

  • 1Department of Internal Medicine, American University of Beirut, Beirut, Lebanon.

Seminars in Nephrology
|March 12, 2026
PubMed

Insights

Urinary podocyte shedding (podocyturia) may predict cardiovascular disease (CVD) earlier than albuminuria in type 2 diabetics. Higher podocyturia levels indicate increased risk for developing CVD and coronary artery disease.

Area of Science:

  • Nephrology
  • Cardiology
  • Endocrinology

Background:

  • Cardiovascular disease (CVD) is a leading cause of mortality globally.
  • Early detection of subclinical endothelial injury is crucial for CVD prediction.
  • Current screening methods may not identify silent CVD effectively.

Purpose of the Study:

  • To investigate urinary podocyte shedding (podocyturia) as an early biomarker for CVD.
  • To compare the predictive value of podocyturia versus albuminuria for CVD events.
  • To assess the association of podocyturia with cardiovascular risk factors and coronary artery disease.

Main Methods:

  • Quantitative polymerase chain reaction was used to measure urinary podocin and nephrin mRNA (podocyturia).
  • Study included type 2 diabetic patients with normal albumin excretion rates.
  • Patients were followed for up to 7 years for CVD development.

Main Results:

  • Podocyturia was significantly higher in individuals who later developed CVD.
  • Elevated podocyturia was associated with obstructive coronary artery disease.
  • Risk factors like male sex, metabolic syndrome, and type 2 diabetes correlated with higher podocin levels.

Conclusions:

  • Urinary podocyte shedding may serve as an earlier predictor of cardiovascular events than moderate albuminuria.
  • Podocyturia indicates glomerular endothelial injury and aids in CVD risk stratification.
  • This finding supports enhanced screening for silent CVD in at-risk populations.

Keywords:
Podocyturiaalbuminuriacardiovascular diseasediabetesendothelial dysfunctionpodocin

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