Abstract
Background and aimsDiabetic retinopathy (DR) is one of the most common microvascular diabetic complications. Sarcolemmal membrane-associated protein (SLMAP) has been implicated in playing a role in microvascular endothelial dysfunction. This study aimed to assess the significance of SLMAP rs17058639C > T gene polymorphism among patients with type 2 diabetes mellitus (T2DM) and its relevance to microvascular endothelial diabetic retinopathy. MethodsWe conducted this case-control study on 100 individuals divided into 60 participants with T2DM and 40 healthy controls. Patients with T2D were stratified into two groups: 40 patients with DR and 20 patients with diabetic non-retinopathy (DNR). Patients with T2DM were compared with age- and sex-matched healthy controls. Fundus examinations were conducted to detect microvascular endothelial changes. The polymorphism of SLMAP rs17058639C > T gene was identified by real-time polymerase chain reaction (RT-PCR) TaqMan allelic discrimination. ResultsPatients with DR have significantly increased glycated hemoglobin (HbA1c) compared to patients with DNR (P < 0.001). There was no statistically significant difference found between diabetic and control groups regarding the frequency of SLMAP rs17058639C > T genotypes. The homozygous CC genotype was the most common variant among patients with DR; however, the results did not reach statistical significance. ConclusionsDiabetic retinopathy is correlated with poor glycemic control, and SLMAP rs17058639C > T polymorphism was associated with microvascular endothelial DR in patients with T2DM, although further studies with a large sample size are needed to confirm our findings.
Published Version
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