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LIPID STORAGE MYOPATHY DUE TO FLAVIN ADENINE DINUCLEOTIDE SYNTHETASE DEFICIENCY; LSMFLAD

LIPID STORAGE MYOPATHY DUE TO FLAVIN ADENINE DINUCLEOTIDE SYNTHETASE DEFICIENCY; LSMFLAD
255100
OMIM = Online Mendelian Inheritance of Men
FAD synthase
2.7.7.2
1q21.3
rare
autosomal recessive
mutation in the FLAD1 gene
FLAD1 variants as a cause of potentially treatable inborn errors of metabolism manifesting with MADD [Olsen RKJ et al. 2016]
Laboratory findingsHexanoylglycine normal/inc (urine)
    2-Methylsuccinic acid normal/inc (urine)
    Acylcarnitine (C2) inc (urine)
    Adipic acid normal/inc (urine)
    Creatine kinase inc (serum)
    Ethylmalonic acid inc (urine)
    Suberic acid normal/inc (urine)
    Tiglylglycine normal/inc (urine)
Symptoms   tachykardia
    cardiac arrest
    cardiomyopathy
    cataract
    early death
    exercise intolerance
    feeding difficulties, poor feeding
    gait disturbance
    hypotonia
    infections (severe or recurrent)
    muscle weakness
    myopathy
    onset, adulthood
    onset, infancy
    respiratory insufficiency
    scoliosis
    speech difficulties
    swallowing difficulties
    tachykardia, paroxysmal