1. Association of fasting insulin and C peptide with diabetic retinopathy in Latinos with type 2 diabetes
- Author
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Kuo, Jane Z, Guo, Xiuqing, Klein, Ronald, Klein, Barbara E, Weinreb, Robert N, Genter, Pauline, Hsiao, Fone-Ching, Goodarzi, Mark O, Rotter, Jerome I, Chen, Yii-Der Ida, and Ipp, Eli
- Subjects
Biomedical and Clinical Sciences ,Ophthalmology and Optometry ,Diabetes ,Eye Disease and Disorders of Vision ,Prevention ,Metabolic and endocrine ,C-Peptide ,Insulin ,Retinopathy ,Clinical Sciences ,Clinical sciences ,Public health - Abstract
ObjectiveResidual insulin secretion provides important protection against the development of diabetic retinopathy in type 1 diabetes. The data to support this in type 2 diabetes are unclear. We therefore tested in type 2 diabetes whether markers of residual beta-cell function are associated with the development of diabetic retinopathy, an important microvascular complication of diabetes.DesignProspective, cross-sectional, family-based study.Participants585 Latino type 2 diabetic participants, ascertained in families via a proband either with known diabetes duration of greater than 10 years and/or with diabetic retinopathy.Outcome measuresCIRCULATING LEVELS OF FASTING INSULIN AND C PEPTIDE MEASURED AND CORRELATED TO DEGREE OF DIABETIC RETINOPATHY, ASSESSED BY DIGITAL FUNDUS PHOTOGRAPHY AND GRADED USING THE MODIFIED AIRLIE HOUSE CLASSIFICATION AND THE EARLY TREATMENT DIABETIC RETINOPATHY STUDY SCALE (RANGE: levels 10-85).ResultsFasting plasma insulin (β=-0.29; 95% CI -0.38 to -0.20; p
- Published
- 2014