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Segmental Sclerosis and Extracapillary Hypercellularity Predict Diabetic ESRD.

Amy K Mottl1, Adil Gasim2, Fernanda Payan Schober3

  • 1Division of Nephrology and Hypertension, Department of Medicine, and amy_mottl@med.unc.edu.

Journal of the American Society of Nephrology : JASN
|November 29, 2017
PubMed
Summary
This summary is machine-generated.

New histologic markers, segmental sclerosis and extracapillary hypercellularity, predict faster progression of diabetic kidney disease (DKD) to end-stage renal disease (ESRD). These findings offer insights into DKD pathogenesis and patient outcomes.

Keywords:
diabetic glomerulosclerosisend stageextracapillary hypercellularitypathologyrenal diseasesegmental sclerosis

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Area of Science:

  • Nephrology
  • Pathology
  • Diabetology

Background:

  • Diabetic kidney disease (DKD) is a leading cause of end-stage renal disease (ESRD).
  • Predictive markers for DKD progression are limited, hindering timely intervention.
  • Histologic findings in kidney biopsies are crucial for understanding DKD pathogenesis.

Purpose of the Study:

  • To evaluate the prognostic value of histologic features in native kidney biopsies for predicting time to ESRD in patients with DKD.
  • To identify novel histopathologic markers associated with DKD progression.

Main Methods:

  • Retrospective analysis of 109 native kidney biopsy specimens from patients with diabetic glomerulosclerosis.
  • Histologic assessment included diabetic nephropathy classification and specific lesion quantification.
  • Competing risk models were used to analyze time to ESRD, accounting for death as a competing event.

Main Results:

  • Segmental sclerosis and extracapillary hypercellularity were identified as significant poor prognostic indicators for ESRD.
  • Mild mesangial expansion showed a borderline association with a decreased risk of ESRD.
  • Diabetic nephropathy class alone was not a significant predictor of time to ESRD in multivariable models.

Conclusions:

  • Segmental sclerosis and extracapillary hypercellularity are novel, adverse prognostic indicators for DKD progression to ESRD.
  • These findings may represent distinct pathogenetic phenotypes within DKD.
  • Further research with larger cohorts is needed to validate these indicators.