Table 1.
Genetic variants in human GPX1 associated with diabetes/obesity-related phenotypes
Analyzed variant(dbSNP) | Other designation | Metabolic phenotype | Reference |
---|---|---|---|
rs1050450 | 594C/T, Pro198Leu | The CT/TT genotype had higher waist-hip ratios, triacylglycerol concentrations, homeostasis model assessment for β-cell function, and systolic and diastolic blood pressures in men | [115] |
The CT/TT genotype had higher body fat mass, insulin and HOMA-IR in women | [115] | ||
Leu carriers had higher lipoperoxides and MDA in LDL | [118] | ||
Leu carriers showed higher DNA damage after Se supplementation | [114] | ||
Leu carriers had higher lipoperoxides and MDA in LDL, lower GPX activity | [113] | ||
Erythrocyte GPX activity was lowered with the T allele dose | [113] | ||
Pro198Leu | The variant T allele was associated with a higher risk of developing diabetic peripheral neuropathy | [116] | |
Ala5/Ala6+ Pro198Leu | Ala6/198Leu polymorphism had a 40% decrease in GPX1 activity | [85] | |
-602A/G+2C/T | 25% decrease in transcriptional activity | [85] | |
Pro200Leu | linked to morbid obesity in central Mexican women | [117] | |
rs8179169 | Arg5Pro | Had an effect on erythrocyte Se, with lower concentrations in individuals with the GC genotype | [132] |
rs3448 | XT/CC | The CT/TT allele was associated with higher plasma concentrations of isoprostane and advanced oxidation protein products | [21] |
GPX1, glutathione peroxidase 1; HOMA-IR, homeostasis model assessment of insulin resistance; LDL, Low-density lipoprotein; MDA, malondialdehyde; Se, selenium.