There were marked deletion of Mb in myocardium from 13 cases of SCD, and slight deletion in 6 of SCD, and no deletion in 3 of SCD and in all 15 non - cardiac death controls.

• 肌红蛋白染色,13例明显缺失,6例轻度缺失,3例无缺失。 15例非心性死亡阴性对照病例,纤维连接蛋白均呈阴性,肌动蛋白及肌红蛋白均无缺失。