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Background: Peripheral neuropathy is one of the most common late complications of diabetes. Vascular endothelial growth factor (VEGF) gene polymorphisms have been associated with the development of peripheral neuropathy in different populations of patients with type 2 diabetes mellitus (DM2)., Objective: To analyze the prevalence of the +936 C/T VEGF gene polymorphism among patients with DM2 with and without peripheral neuropathy., Study Design and Methodology: 218 unrelated DM2 patients, 90 with and 128 without peripheral neuropathy were genotyped for the +936 C/T VEGF gene polymorphism using PCR amplification followed by restriction length polymorphism analysis., Results: The CC homozygous VEGF+936 C/T (rs3025039) was the predominant genotype in DM2 patients with peripheral neuropathy, whereas the predominant genotype in patients without neuropathy was the heterozygous C/T. No statistical association was found between genotype distribution and the presence of neuropathy (p = 0.063). The distribution of the genotypes according to the dominant (CC vs. CT + TT) and recessive (TT vs. CT + CC) models showed that the homozygous CC and TT genotypes, respectively, are not risk factors for neuropathy. The CT genotype conferred a protective effect as seen in the over-dominant model (CT vs. CC + TT) (OR = 0.52; 95% CI = 0.300-0.90; p = 0.019)., Conclusion: We conclude that the VEGF+936 C/T (rs3025039) gene polymorphisms are related to peripheral neuropathy in Mexican DM2 patients, with the heterozygous genotype potentially conferring a protective effect., (Copyright © 2019 IMSS. Published by Elsevier Inc. All rights reserved.)

Background and Aims: Obesity is a complex, chronic, and multifactorial disease that has become a major, and worldwide, public health problem contributing to an increased number of pathologies, including type 2 diabetes, cardiovascular disease, hyperlipidemia, and metabolic syndrome, thus suggesting a commolon origin. A diet high in sugar and fats coupled with a sedentary lifestyle has a major role in the development of obesity. However, the genetic background has also been associated with body fat accumulation. The aim of this study was to assess the effect ofACE-rs4646994, APOA5-rs662799, and MTP-rs1800591 gene polymorphisms on clinical and biochemical parameters and to evaluate the association with body phenotypes in children and adolescent population of Saltillo, Coahuila, Mexico., Methods: Anthropometric, clinical, biochemical parameters and BMI were obtained from 405 children and adolescents. The BMI was used to determine the body phenotype. The rs4646994 gene polymorphism was determined by PCR, whereas rs662799 and rs1800591 were determined by PCR-RFLP. The obtained results were analyzed to determine their association of these single nucleotide polymorphisms with body phenotype and biochemical parameters., Results: TT genotype for APOA5-rs662799 was associated with increased levels of HDL-C in the analyzed population (p <0.05). The ACErs4646994gene polymorphism is associated with high Insulin levels, HOMAIR index, and triglyceride levels, mainly when presenting a I/I genotype (p <0.05)., Conclusion: The polymorphic allele of the ACE gene is capable of modulating triglyceride levels, insulin levels and HOMA-IR index in the evaluated population; it must be highlighted that this has not been reported in other studied populations elsewhere., (Copyright © 2018 IMSS. Published by Elsevier Inc. All rights reserved.)