4.7 Article

Retinal microvascular signs and risk of diabetic kidney disease in asian and white populations

Journal

SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -

Publisher

NATURE RESEARCH
DOI: 10.1038/s41598-021-84464-7

Keywords

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Funding

  1. DYNAMO grant [NMRC/OFLCG/001/2017]
  2. Duke-NUS grant (Singapore) [Duke-NUSKMRA/2005/003]
  3. National Eye Institute [EY03083]

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The study found that retinal microvascular signs are associated with the development of diabetic kidney disease in Asian and White populations. The changes in retinal microvasculature may be a potential predictor for the occurrence of DKD.
The objective was to examine prospectively the association between retinal microvascular signs and development of diabetic kidney disease (DKD) in Asian and White populations. We analysed two population-based cohorts, composing of 1,221 Asians (SEED) and 703 White (WESDR) adults with diabetes. Retinal microvascular signs at baseline included vascular caliber (arteriolar-CRAE, and venular-CRVE) and diabetic retinopathy (DR). Incident cases of DKD were identified after similar to 6-year. Incident cases were defined based on eGFR in SEED and proteinuria or history of renal dialysis in WESDR. The incidence of DKD were 11.8% in SEED and 14.0% in WESDR. Wider CRAE in SEED (OR=1.58 [1.02, 2.45]) and wider CRVE (OR=1.69 [1.02, 2.80)) in WESDR were associated with increased risk of DKD. Presence of DR was associated with an increased risk of DKD in both cohorts (SEED: OR=1.91 [1.21, 3.01] in SEED, WESDR: OR=1.99 [1.18, 3.35]). Adding DR and retinal vascular calibers in the model beyond traditional risk factors led to an improvement of predictive performance of DKD risk between 1.1 and 2.4%; and improved classification (NRI 3 between 9%). Microvascular changes in the retina are longitudinally associated with risk of DKD.

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