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Related Experiment Video

Updated: May 17, 2026

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice

Published on: May 2, 2025

Morphologic features of declining renal function in type 1 diabetes.

Behzad Najafian¹, Michael Mauer

¹Department of Pathology, University of Washington, Seattle, WA, USA.

Seminars in Nephrology

|October 16, 2012

Summary

This summary is machine-generated.

Diabetic nephropathy progression involves kidney lesions and functional decline. Morphologic changes correlate with albumin excretion rate but not always glomerular filtration rate loss in type 1 diabetes.

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Area of Science:

Nephrology
Endocrinology
Diabetology

Background:

Diabetic nephropathy is a severe complication of type 1 diabetes.
Understanding structural-functional relationships is key to deciphering diabetic nephropathy's natural history.

Purpose of the Study:

This review examines the relationship between diabetic nephropathy's morphologic changes and glomerular filtration rate (GFR) decline.
It explores how structural alterations correlate with GFR loss and albumin excretion rate (AER).

Main Methods:

The review synthesizes current knowledge on structural-functional relationships in diabetic nephropathy.
It analyzes quantitative measures of renal structural changes and their predictive power for AER and GFR.

Main Results:

Morphologic changes in diabetic nephropathy do not always parallel GFR decline or AER increase.
Quantitative structural measures, particularly glomerular ones, predict AER variability better than GFR variability.
Nonlinear models offer a better fit for structural-functional relationships across diverse GFR and AER ranges.

Conclusions:

Longitudinal data are needed to identify structural changes predicting GFR decline slope in type 1 diabetes.
Composite predictors including glomerular, tubular, and interstitial parameters may offer a ~10% improvement in predicting GFR decline in patients with GFR ≥ 45 mL/min/1.73 m(2).
Precise structural predictors could serve as surrogates for renal functional decline in clinical trials for diabetic nephropathy.