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====== Acylcarnitines ====== | ====== Acylcarnitines ====== | ||
- | Acute myopathy, rhabdomyolysis. Unexplained | + | {{tag> |
+ | ==== Indications ==== | ||
+ | suspected fatty acid oxidation disorders, acute myopathy, rhabdomyolysis, unexplained | ||
==== Notes ==== | ==== Notes ==== | ||
+ | * diagnostic results are usually characterized by a pattern of significantly elevated acylcarnitine species compared to normal and disease controls. | ||
* serum acylcarnitines are useful in the diagnosis of fatty acid oxidation disorders and several organic acidurias | * serum acylcarnitines are useful in the diagnosis of fatty acid oxidation disorders and several organic acidurias | ||
- | * also useful in evaluating treatment during follow-up of patients with fatty acid beta-oxidation disorders and several organic acidurias | + | * serum acylcarnitines |
* specific acylcarnitines indicate particular disorders, e.g. octanoyl carnitine in [[MCAD deficiency]], | * specific acylcarnitines indicate particular disorders, e.g. octanoyl carnitine in [[MCAD deficiency]], | ||
+ | * abnormal results are not sufficient to conclusively establish a diagnosis of a particular disease | ||
+ | * to verify a preliminary diagnosis based on an acylcarnitine analysis, independent biochemical (eg, in vitro enzyme assay) or molecular genetic analyses are required. | ||
- | ^ ^ ^ | + | ==== Pathophysiology ==== |
- | | < or =7 days (nmol/mL) | < or =7 days (nmol/mL) | | + | Fatty acid oxidation |
- | | | | | + | |
- | | 8 days-7 years | 8 days-7 | + | ==== Reference values ==== |
- | | | | + | ^ ^ 8 days-7 years ^ > or =8 years | |
- | | (nmol/ | + | | < or =7 days (nmol/ |
- | | | | | + | | Acetylcarnitine, |
- | | > or =8 years | > or =8 years | | + | | Acrylylcarnitine, |
- | | | | | + | | Propionylcarnitine, |
- | | (nmol/ | + | | Formiminoglutamate, |
- | | | | + | | Iso-/ |
- | | Acetylcarnitine, | + | | Tiglylcarnitine, |
- | | | | | + | | Isovaleryl-/ |
- | | 2.14-15.89 | + | | 3-OH-iso-/ |
- | | | | | + | | Hexenoylcarnitine, |
- | | 2.00-27.57 | + | | Hexanoylcarnitine, |
- | | | | | + | | 3-OH-isovalerylcarnitine, |
- | | 2.00-17.83 | + | | Benzoylcarnitine |
- | | | | + | | Heptanoylcarnitine, |
- | | Acrylylcarnitine, | + | | 3-OH-hexanoylcarnitine, |
- | | | | | + | | Phenylacetylcarnitine |
- | | < | + | | Salicylcarnitine |
- | | | | | + | | Octenoylcarnitine, |
- | | < | + | | Octanoylcarnitine, |
- | | | | | + | | Malonylcarnitine, |
- | | < | + | | Decadienoylcarnitine, |
- | | | | + | | Decenoylcarnitine, |
- | | Propionylcarnitine, | + | | Decanoylcarnitine, |
- | | | | | + | | Methylmalonyl-/ |
- | | < | + | | 3-OH-decenoylcarnitine, |
- | | | | | + | | Glutarylcarnitine, |
- | | < | + | | Dodecenoylcarnitine, |
- | | | | | + | | Dodecanoylcarnitine, |
- | | < | + | | 3-Methylglutarylcarnitine, |
- | | | | + | | 3-OH-dodecenoylcarnitine, |
- | | Formiminoglutamate, | + | | 3-OH-dodecanoylcarnitine, |
- | | | | | + | | Tetradecadienoylcarnitine, |
- | | < | + | | Tetradecenoylcarnitine, |
- | | | | | + | | Tetradecanoylcarnitine, |
- | | < | + | | Octanedioylcarnitine, |
- | | | | | + | | 3-OH-tetradecenoylcarnitine C14: |
- | | < | + | | 3-OH-tetradecanoylcarnitine, |
- | | | | + | | Hexadecenoylcarnitine, |
- | | Iso-/ | + | | Hexadecanoylcarnitine, |
- | | | | | + | | 3-OH-hexadecenoylcarnitine, |
- | | < | + | | 3-OH-hexadecanoylcarnitine, |
- | | | | | + | | Octadecadienoylcarnitine, |
- | | < | + | | Octadecenoylcarnitine, |
- | | | | | + | | Octadecanoylcarnitine, |
- | | < | + | | Dodecanedioylcarnitine, |
- | | | | + | | 3-OH-octadecadienoylcarn, |
- | | Tiglylcarnitine, | + | | 3-OH-octadecenoylcarnitine C18: |
- | | | | | + | | 3-OH-octadecanoylcarnitine, |
- | | < | + | <caption> |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Isovaleryl-/ | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-iso-/ | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Hexenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Hexanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-isovalerylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Benzoylcarnitine | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Heptanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-hexanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Phenylacetylcarnitine | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Salicylcarnitine | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Octenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Octanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Malonylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Decadienoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Decenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Decanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Methylmalonyl-/ | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-decenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Glutarylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Dodecenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Dodecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-Methylglutarylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-dodecenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-dodecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Tetradecadienoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Tetradecenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Tetradecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Octanedioylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-tetradecenoylcarnitine C14: | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-tetradecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Hexadecenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Hexadecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-hexadecenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-hexadecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Octadecadienoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Octadecenoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Octadecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | Dodecanedioylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-octadecadienoylcarn, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-octadecenoylcarnitine C18: | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | + | |
- | | 3-OH-octadecanoylcarnitine, | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | < | + | |
- | | | | | + | |
- | | <0.03 | <0.03 | + | |