血清肌红蛋白(MB)是一种低分子量的蛋白质,仅存在于横纹肌及心肌。MB在人体红肌中含量最高,白肌中含量较低。血清MB正常值为80μg/L(80ng/ml)以下。神经肌肉疾患、心肌梗塞或心绞痛时,MB漏出增加,并进入血循环,于是血清MB增加,在肾小球滤过功能正常时,这是肌细胞损害或肌病的 Serum myoglobin (MB) is a low-molecular-weight protein found only in striated and cardiac muscles. MB in the human body, the highest content of red muscle, white muscle content is low. Serum MB normal value of 80μg / L (80ng / ml) or less. Neuromuscular disorders, myocardial infarction, or angina pectoris, MB leakage increases, and into the blood circulation, serum MB increased, in normal glomerular filtration function, this is myocyte damage or myopathy