Both the peroxisome proliferator-activated receptor delta gene (PPARD) and malondialdehyde plasma concentrations may play a role in impaired glucose metabolism. The aim of this work was to determine whether PPARD is a candidate gene for impaired fasting glucose or type 2 diabetes and whether a particular genetic variant shows association with plasma malondialdehyde levels. Among the 10 single-nucleotide polymorphisms that were most strongly associated with malondialdehyde, the rs7770619 polymorphism in PPARD was analysed in 1798 subjects with normal fasting glucose, impaired fasting glucose and newly diagnosed type 2 diabetes. Our data demonstrate that the CT genotype of the rs7770619 is associated with a lower risk of impaired fasting glucose or type 2 diabetes together with lower plasma levels of malondialdehyde in both groups (p < 0.05). Glucose levels and the rs7770619 are significantly associated in individuals with normal fasting glucose, and a trend towards an association between glucose levels and rs7770619 is also observed in individuals with impaired fasting glucose or type 2 diabetes. In conclusion, PPARD rs7770619 is a novel candidate variant for impaired fasting glucose and type 2 diabetes and shows association with malondialdehyde levels. Future work is required to understand the mechanisms for these associations and the clinical implications of our findings.
Bibliographical noteFunding Information:
This study was funded, in part, by the Bio-Synergy Research Project (NRF-2012M3A9C4048762) and the Mid-career Researcher Program (NRF-2016R1A2B4011662) of the Ministry of Science, ICT and Future Planning through the National Research Foundation, Republic of Korea.
All Science Journal Classification (ASJC) codes
- Internal Medicine
- Endocrinology, Diabetes and Metabolism
- Cardiology and Cardiovascular Medicine