Plasma MPO levels with SCD-citrate were significantly lower compared with SCD-heparin (p = 0.01 at hour 3), averaging 82.4±21.0 and 307±102 ng/mL, as well as well as at 6 hours (p<0.005, Fig. 7), respectively. The gene discussed is MPO; the disease is Schnyder corneal dystrophy.