TRDN and Schnyder corneal dystrophy: In chronic heart failure patients from the Chinese Han population, both rs3814843 and rs361508, located on CALM1 and triadin (TRDN), respectively, were associated with increased risk of SCD as examined by survival analysis, suggesting common variants in Ca2+-handling proteins played an important role in the development of SCD during chronic heart failure (Laver et al., 2015).