These findings raise the important issue of ensuring that race/ethnicity is taken into account for these kinds of studies and stand in contrast with studies on a variety of diseases that showed worse outcomes and more severe symptoms in people with longer polyGT repeat alleles in their HMOX1 genes including type 2 diabetes [15], emphysema [16], Parkinson’s Disease [17], ischemic heart disease [18] and coronary artery disease in subjects with type 2 diabetes [19]. This evidence concerns the gene HMOX1 and Parkinson disease.