ABCA1 and type 2 diabetes mellitus: A polymorphism in the potassium voltage-gated channel subfamily J member 11 (KCNJ11) gene in a case-control study in KSA82, and polymorphisms in the adenosine binding cassette transporter 1 (ABCA1) gene in a meta-analysis83, were significantly associated with T2D as they were observed more frequently in T2D patients.