Histological and clinical phenotypes of diabetic kidney disease: a baseline analysis of the HEROIC study

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2026
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Abstract
Abstract Background Diabetic kidney disease (DKD) is increasingly recognised as a heterogeneous condition. Our understanding of the structure-function relationships underpinning DKD is limited. The East and North London Diabetes Cohort (HEROIC) study aims to identify prognostic markers in a diverse DKD cohort. We present here the baseline clinical phenotype of the cohort, define clusters of DKD and assess the performance of eGFR equations including CKD Epi 2021. Methods Patients with diabetes and CKD were recruited from two tertiary renal units. Renal biopsies were assessed using the Renal Pathology Society (RPS) scoring system. Ordinal logistic regression was used to assess clinical associations with histological severity and ensemble consensus clustering was used to identify distinct phenotypes. eGFR bias was calculated as measured GFR – eGFR. Results In our cohort of 188 DKD patients (9.0% Black, 46.3% South Asian, 14.9% White and 29.8% other ethnicity), there was an inverse relationship between BMI and glomerular lesion severity (OR 0.93, p = 0.008), which persists when restricted to T2D patients. Ensemble consensus clustering identified five clusters with moderate separation including a phenotype with high rates of vascular disease, a phenotype with advanced DKD and low BMI, and one with a short duration of diabetes and milder glomerular lesions. CKD Epi 2021 overestimated eGFR in South Asian individuals whilst underestimation of eGFR was noted in Black individuals. Conclusions We demonstrate clinically distinct clusters of DKD, which may provide hypotheses for ‘personalised’ approaches to interventions in DKD in future trials. We demonstrate that CKD-Epi 2021 performs poorly in a multi-ethnic DKD population.
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Authors Gordon Paterson, Ortensia Vito, Lauren Heptinstall, M. Sheaff, A Lee, David Kim, Benjamin Challis, Robert J. Unwin, Maidah Yaqoob, Kieran McCafferty, Ben Caplin
Journal clinical kidney journal
Year 2026
DOI
10.1093/ckj/sfag215
URL
https://doi.org/10.1093/ckj/sfag215
Keywords Keywords not found

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