HMOX1 and coronary artery disorder: A recent prospective case-control study of more than 3000 participants showed that neither the (GT)n dinucleotide repeat nor the T(-413)A polymorphism in the HO-1 promoter is associated with angiographic coronary artery disease, myocardial infarction, or survival rate in Caucasians undergoing coronary angiography [55].