极长链酰基辅酶A脱氢酶缺乏症研究进展

极长链酰基辅酶A脱氢酶缺乏症是一种较罕见的脂肪酸代谢障碍疾病，根据起病年龄和临床表现分为三型：心肌病型、肝型、肌病型。心肌病型病情重，病死率高。临床诊断可通过血串联质谱(MS/MS)检测血肉豆蔻烯酰基肉碱(C14:1)水平进行，进一步确诊可通过基因诊断、酶学分析及脂肪酸氧化流量分析。治疗上主要包括避免空腹，减少长链脂肪酸的摄入，补充中链甘油三酯等。

Progress in the very long chain acyl - CoA dehydrogenase deficiency

Very long chain acyl - CoA dehydrogenase deficiency (VLCADD) is a rare recessively inherited disorder of mitochondrial fatty acid β - oxidation. VLCADD is classfied into three types according the onset age and clinical manifestation: cardiomyopathic phenotype, hepatic phenotype and myopathic phenotype. The cardiomyopathic phenotype is most severe resulting in high mortality. The biochemical hallmark of the disease is elevation of C14:1 -camitine detected by tandem mass spectrometry . Enzyme analysis, molecular genetic analysis and fatty acid oxidation flux assay are used to make further diagnostic evaluation. Treatment regimens include avoidance of fasting, restriction of long - chain fat acid and supplementation of medium - chain triglycerides.