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Related Experiment Video

Updated: Dec 15, 2025

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice
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Renal structure in type 2 diabetes: facts and misconceptions.

Angelo Di Vincenzo1, Silvia Bettini1, Lucia Russo1

  • 1Department of Medicine, Clinica Medica 3, University of Padova, Via Giustiniani 2, 35128, Padova, Italy.

Journal of Nephrology
|July 14, 2020
PubMed
Summary

Diabetic kidney disease (DKD) presents differently in type 2 diabetes, often with varied renal lesions beyond glomerulopathy. Kidney biopsies reveal these structural changes, aiding prognosis and personalized treatment, including SGLT2 inhibitors.

Keywords:
Diabetic nephropathyKidney biopsyMesangial expansionMorphometric analysisTubulointerstitial lesions

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Area of Science:

  • Nephrology
  • Endocrinology
  • Pathology

Background:

  • Clinical presentation of diabetic nephropathy is similar in type 1 and type 2 diabetes.
  • Renal lesions in type 1 diabetes predominantly feature diabetic glomerulopathy.
  • Type 2 diabetes exhibits heterogeneous renal lesions, often with tubulointerstitial and arteriolar abnormalities, and sometimes mild or absent glomerulopathy.

Purpose of the Study:

  • To review renal structural changes in type 2 diabetes.
  • To highlight the role of kidney biopsy studies in understanding diabetic kidney disease (DKD) pathogenesis and clinical phenotypes.
  • To explore the utility of kidney biopsies for renal prognosis and personalized medicine, particularly regarding SGLT2 inhibitor response.

Main Methods:

  • Review of existing literature and research kidney biopsy studies.
  • Analysis of structural renal lesions in type 2 diabetes patients.
  • Correlation of histological findings with clinical presentations and outcomes.

Main Results:

  • Type 2 diabetes frequently shows heterogeneous renal lesions, including tubulointerstitial and arteriolar abnormalities, alongside potential non-diabetic renal diseases.
  • Kidney biopsies are crucial for identifying specific structural lesions contributing to diverse clinical phenotypes in DKD.
  • Histopathological findings from biopsies can inform renal prognosis and guide personalized therapeutic strategies.

Conclusions:

  • Renal structural changes in type 2 diabetes are diverse and impact clinical outcomes.
  • Kidney biopsies are essential for accurate diagnosis, prognosis, and personalized treatment of DKD.
  • Understanding specific renal lesions may optimize the use of therapies like SGLT2 inhibitors for tailored patient care.