Kose, Melis DemirCanda, EbruKagnici, MehtapIsguder, RanaUnalp, AycanUcar, Sema KalkanBahr, LuzyBritschgi, CorinneSass, Jorn OliverCoker, Mahmut2019-10-272019-10-2720162147-94452147-9445https://doi.org/10.4274/jpr.25338https://hdl.handle.net/11454/52743Deficiency of mitochondrial acetoacetyl-coenzyme A thiolase T2 (methylacetoacetyl-coenzyme A thiolase, MAT) or beta-ketothiolase is a rare autosomal recessive disorder that is characterized by ketoacidosis episodes. Outcomes vary from normal development to severe cognitive impairment or even death after an acute episode of ketoacidosis. The classical biochemical profile of T2 deficiency is a result of mutations in both alleles of the ACAT1 gene and comprises characteristic abnormalities in urinary organic acids and blood or plasma acylcarnitine profiles. In this study, we present two sibling cases with quite different clinical properties.en10.4274/jpr.25338info:eu-repo/semantics/openAccessACAT1 genebeta-ketothiolase deficiencyencephalopathyhyperammonemialactic acidosisArticle32113116WOS:000406928300010N/A