Haptoglobin Genotype Is a Major Determinant of the Amount of Iron in the Human Atherosclerotic Plaque
Pedro R. Moreno, MD, FACC*,
K. Raman Purushothaman, MD*,
Meera Purushothaman, PhD*,
Paul Muntner, PhD*,
Nina S. Levy, PhD ,
Valentin Fuster, MD, PhD, FACC*,
John T. Fallon, MD, PhD ,
Patrick A. Lento, MD ,
Aaron Winterstern, BS and
Andrew P. Levy, MD, PhD, FACC ,*
* Department of Medicine (Cardiology), Mount Sinai Medical Center, New York, New York
Department of Pathology, Mount Sinai Medical Center, New York, New York
Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel

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Figure 1 Percentage of Plaques With Perl's Iron Stain by Hp Genotype and DM Status
In patients with diabetes mellitus (DM), 24 of 52 plaques from 9 haptoglobin (Hp) 2-2 decedents compared with 6 of 51 plaques from 12 Hp 1-1 or 2-1 decedents demonstrated Perl's iron stain. In patients without DM, 11 of 41 plaques from 7 Hp 2-2 decedents compared with 5 of 45 plaques from 9 Hp 1-1 or 2-1 decedents demonstrated Perl's iron stain.
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