RT Journal Article SR Electronic T1 Neuropsychiatric manifestations of defect in mitochondrial beta oxidation response to riboflavin. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 209 OP 211 DO 10.1136/jnnp.55.3.209 VO 55 IS 3 A1 Triggs, W J A1 Roe, C R A1 Rhead, W J A1 Hanson, S K A1 Lin, S N A1 Willmore, L J YR 1992 UL http://jnnp.bmj.com/content/55/3/209.abstract AB A 29 year old woman is described with severe hyperemesis gravidarum, atypical migraine, numerous admissions to hospital for psychiatric illness, non-epileptic seizures, and valproate-induced coma. Metabolic studies and measurement of [9,10(n)-3H]palmitate oxidation by cultured fibroblasts suggested a multiple acyl-CoA dehydrogenation disorder. Treatment with riboflavin abolished headaches and abnormal behaviour and normalised the plasma free carnitine level. Subtle defects in mitochondrial beta oxidation may be a treatable cause of disordered behaviour in adults.