and hyperhomocystinemia due to high methionine intake: A diagnostic trap.
Reduction of gangliosides, phospholipids and cholesterol content in cerebral cortex of rats caused by chronic hypermethioninemia
Also, a Scandinavian group (23) and a Canadian group (24) found that hypermethioninemia occasionally occurred in patients with HRT, especially in the acute stage.
It is recognised that the odor in patients with HRT is associated with hypermethioninemia, and this, together with aforementioned symptoms and signs, are seen frequently in acute type HRT.
Table IV Causes of blood-borne halitosis Odorant Systemic diseases * Hepatic failure/liver cirrhosis * Dimethyl sulfide * Uremia/kidney failure * Dimethylamine, trimethy lamine * Diabetic ketoacidosis/diabetes mellitus * Acetone Metabolic disorders * Isolated persistent * Dimethyl sulfide hypermethioninemia
* Trimethylamine * Fish odor syndrome, trimethy laminuria Medication * Disulfiram * Carbon disulfide * Dimethyl sulphoxide * Dimethyl sulfide * Cysteamine * Dimethyl sulfide Food * Garlic * Ally1 methyl sulfide * Onion * Methyl propyl sulfide Tangerman A.
Many cases of homocystinuria have secondary hypermethioninemia
In newborns and infants, food formulas and amino acid solutions may cause hypermethioninemia and hyperhomocysteinemia (3,62), and severe hypermethioninemia is often found in babies who are premature, have low birth weights, or who are in neonatal intensive care units (40, 62).
Infantile hypermethioninemia and hyperhomocysteinemia due to high methionine intake: a diagnostic trap.
When increased, methionine is the metabolite used in MS/MS analysis to identify cases of isolated hypermethioninemia or homocystinuria, which often result from deficiencies of methionine adenosyltransferase and cystathionine [beta]-synthase, respectively (63).
Rapid diagnosis of homocystinuria and other hypermethioninemias from newborns' blood spots by tandem mass spectrometry.
Quantitative plasma amino acid analysis 1 week later disclosed isolated hypermethioninemia
Similar methods have been adopted on a limited scale for diseases such as maple syrup urine disease, isolated hypermethioninemia
, homocystinuria, and galactosemia [10, 13].