title: Letter to the Editor: "Unaltered L-arginine/NO pathway in a MELAS patient: Is mitochondrial NO synthase involved in the MELAS syndrome?"
authors.affiliation: Division of Clinical Genetics and Metabolic Disorders, Pediatrics Department, Tawam Hospital, Al-Ain, United Arab Emirates. Electronic address: elhattabaw@yahoo.com.
authors.forename: Ayman W
authors.initials: AW
authors.lastname: El-Hattab
mesh_terms: D001120:Arginine / Q000378:metabolism*; D004272:DNA, Mitochondrial / Q000378:metabolism*; D006801:Humans; D017241:MELAS Syndrome / Q000235:genetics* / Q000378:metabolism; D009154:Mutation; D009569:Nitric Oxide / Q000378:metabolism*
chemical_list: D004272:DNA, Mitochondrial; D009569:Nitric Oxide; D001120:Arginine
keywords: Heteroplasmy; MELAS; Nitric oxide (NO); Nitric oxide synthase (NOS); Stable isotope infusion