ArticleActa diabetologica2026
Non-invasive biomarkers for diabetic complications: insights from corneal and retinal imaging.
Article in Acta diabetologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
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1 citing paper in PubMed, 1 synthesis or guideline pooled it.
- Effect of Retatrutide, a Novel Triple Receptor Agonist, on Blood Pressure and Lipid Levels: A Systematic Review and Meta-analysis of Randomized Controlled Trials.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2026Pooled it
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Authors and funding
6 authors.
Funding
Abstract
backgroundDiabetes-related complications, such as diabetic peripheral neuropathy (DPN) and chronic kidney disease (CKD), severely affect quality of life. Early detection is crucial. This study investigates ocular imaging parameters as potential biomarkers for these conditions using corneal confocal microscopy (CCM) and optical coherence tomography angiography (OCTA).
methodsThis cross-sectional study included 76 type 2 diabetes patients (139 eyes) from Fujian Medical University Union Hospital. Participants underwent CCM to assess corneal nerve fiber density (CNFD), branching density (CNBD), and nerve fiber length (CNFL). OCTA and OCT were used to evaluate macular and peripapillary retinal vascular densities (VD) and retinal nerve fiber layer (RNFL) thickness. Laboratory tests measured sural nerve conduction velocity (SSNCV), urine albumin-to-creatinine ratio (UACR), and estimated glomerular filtration rate (eGFR). DPN and CKD were categorized using Toronto consensus criteria and UACR thresholds, respectively. Statistical analyses included Spearman correlation and ROC curve evaluations.
resultsSignificant reductions in CNFD, CNBD, and CNFL were observed in the DPN + group compared to DPN- (P < 0.001, P = 0.005, P < 0.001). Corneal nerve parameters correlated positively with SSNCV (r = 0.419-0.430, P < 0.001). ROC analysis demonstrated CNFD as the most sensitive marker for detecting DPN (AUC = 0.7179, 95% CI: 0.6328-0.8031). Retinal superficial VD in the superior macular region showed the highest diagnostic performance for CKD (AUC = 0.7140, 95% CI: 0.6057-0.8223), with significant correlations between retinal VD parameters and UACR.
conclusionsCorneal nerve parameters measured by CCM and retinal vascular parameters assessed by OCTA are promising non-invasive biomarkers for early detection and monitoring of diabetic neuropathic and microvascular disorders.
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