Expert consensus on screening, diagnosis and treatment of multiple carboxylase deficiency.

Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences 2022 Feb 25

filter terms:

Multiple carboxylase deficiency (MCD) includes autosomal recessive holocarboxylase synthetase (HLCS) deficiency and biotinidase (BTD) deficiency, which are caused by and gene mutations respectively. Neonatal screening for HLCS deficiency is based on 3-hydroxyisovaleryl carnitine in dry blood filter paper, and BTD deficiency is based on BTD activity determination. HLCS deficiency and BTD deficiency are characterized by neurocutaneous syndrome and organic aciduria, however, they are different in onset age, neurological symptoms and metabolic decompensation, which needed to be differentiated from acquired biotin deficiency or other genetic metabolic diseases. The diagnosis of the disease requires a combination of biochemical characteristics of hematuria, enzyme activity determination and genetic test. Routine biotin doses are effective for most MCD patients. This consensus is intended to benefit early screening and diagnosis of MCD.

Citation

Division of Biochemistry and Metabolism, Medical Genetics Branch, Chinese Medical Association, Division of Genetics and Metabolism, Child Diseases and Health Care Branch, Chinese Association for Maternal and Child Health, Division of Genetics and Metabolism, Rare Diseases Committee of Beijing Medical Association. Expert consensus on screening, diagnosis and treatment of multiple carboxylase deficiency. Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences. 2022 Feb 25;51(1):129-135