Association between the ABCA1 rs1800977 polymorphism and susceptibility to type 2 diabetes mellitus in a Chinese Han population.

ATP-binding cassette transporter A1 (ABCA1) is associated with serum high-density lipoprotein (HDL) levels. Several studies have demonstrated that individuals with a high HDL cholesterol level have a reduced risk of incident type 2 diabetes mellitus (T2DM). Therefore, we conducted a case-control study including 508 T2DM patients and 614 controls to explore the association between the ABCA1 rs1800977 polymorphism and T2DM risk in a Chinese Han population. Genotyping was performed using matrix-assisted laser desorption/lionization time-of-flight mass spectrometry. Our results indicate that the TT genotype of the rs1800977 polymorphism was associated with a decreased risk of T2DM compared to the CC genotype. The T allele of the rs1800977 polymorphism was also related with a decreased risk of T2DM. There was no significant association between clinical parameters (HDL, low-density lipoprotein, cholesterol, body mass index, and age) and rs1800977 polymorphism genotypes. In conclusion, the ABCA1 rs1800977 polymorphism may contribute to the development of T2DM. However, larger studies with more diverse ethnic populations are needed to confirm these results.