Archives of Endocrinology and Metabolism (Jun 2023)

Polymorphisms in TIE2 and ANGPT-1 genes are associated with protection against diabetic retinopathy in a Brazilian population

  • Cristine Dieter,
  • Natália Emerim Lemos,
  • Nathalia Rodrigues de Faria Corrêa,
  • Taís Silveira Assmann,
  • Felipe Mateus Pellenz,
  • Luís Henrique Canani,
  • Letícia de Almeida Brondani,
  • Andrea Carla Bauer,
  • Daisy Crispim

DOI
https://doi.org/10.20945/2359-3997000000624
Journal volume & issue
Vol. 67, no. 5

Abstract

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ABSTRACT Objective: The objective of this study was to investigate the association between SNPs in the TIE2 and ANGPT-1 genes and diabetic retinopathy (DR). Subjects and methods: This study comprised 603 patients with type 2 diabetes mellitus (T2DM) and DR (cases) and 388 patients with T2DM for more than 10 years and without DR (controls). The TIE2 rs639225 (A/G) and rs638203 (A/G) SNPs and the ANGPT-1 rs4324901 (G/T) and rs2507800 (T/A) SNPs were genotyped by real-time PCR using TaqMan MGB probes. Results: The G/G genotype of the rs639225/TIE2, the G/G genotype of the rs638203/TIE2 and the T allele of the rs4324901/ANGPT-1 SNPs were associated with protection against DR after adjustment for age, glycated hemoglobin, gender, and presence of hypertension (P = 0.042, P = 0.003, and P = 0.028, respectively). No association was found between the rs2507800/ANGPT-1 SNP and DR. Conclusion: We demonstrated, for the first time, the association of TIE2 rs638203 and rsrs939225 SNPs and ANGPT-1 rs4324901 SNP with protection against DR in a Brazilian population.

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