4.4 Article

Retinal microvascular markers in type 2 diabetes subphenotypes and latent autoimmune diabetes of adults

期刊

ACTA OPHTHALMOLOGICA
卷 101, 期 5, 页码 560-567

出版社

WILEY
DOI: 10.1111/aos.15643

关键词

diabetic retinopathy; microvascular complication; prevalence; retinal markers; type 2 diabetes

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This study examined the differences in subclinical retinal microvascular structure and diabetic retinopathy (DR) among newly diagnosed patients with different subphenotypes of type 2 diabetes (T2DM) or latent autoimmune diabetes of adults (LADA). The results showed that there were no significant differences in retinal microvascular structure between subtypes, but newly diagnosed patients with hyperinsulinaemic T2DM were more likely to have DR compared to those with classical T2DM.
PurposeTo estimate if newly diagnosed patients with different subphenotypes of type 2 diabetes (T2DM) or latent autoimmune diabetes of adults (LADA) differ with respect to subclinical retinal microvascular structure or diabetic retinopathy (DR). MethodsThis population-based, cross-sectional study of 340 patients (675 eyes) classified patients with recently diagnosed T2DM in different subphenotypes according to beta cell function and insulin sensitivity in to; classical (n = 218), hyperinsulinaemic (n = 86), insulinopenic (n = 20), or LADA (n = 16). Retinal 6-field images were graded according to the International Clinical DR Severity Scale by a retinal expert. Retinal microvascular structures were analysed in eyes by a semiautomatic software. ResultsMedian age and duration of diabetes were 58.1 (49.9; 65.5) and 0.9 (0.5; 2.4) years, respectively, and 56.8% were male. In a multivariate linear mixed model regression analysis of eyes without DR (n = 570), there was no statistically significant difference in retinal venular or arteriolar width between subtypes and patients with classical T2DM. In addition, eyes from different subphenotypes did not differ according to vessel density, tortuosity or fractal dimension. In a multivariate logistic regression model adjusted for age, sex, HbA1c, diabetes duration, body mass index, mean arterial blood pressure and history of cardiovascular disease, there was a tendency towards persons with hyperinsulinaemic T2DM to be more likely to have DR (OR 1.97, 95% CI 0.95; 4.09) compared to classical T2DM. ConclusionWe found no difference in retinal microvascular structure in patients with newly diagnosed subtypes of T2DM. However, DR may be more prevalent in newly diagnosed patients with hyperinsulinaemic T2DM compared to individuals with classical T2DM.

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