homovanillic acid/リュウキュウイトバショウ

A simple method is described for the simultaneous determination of vanilmandelic acid (VMA), 3,4-dihydroxyphenylacetic acid (DOPAC), 5-hydroxyindole-3-acetic acid (5-HIAA) and homovanillic acid (HVA) in urine. The compounds are isolated by a one-step sample clean-up on Sephadex G-10, separated by

Simultaneous plasma and cerebrospinal free and sulfoconjugated norepinephrine, epinephrine, dopamine and homovanillic acid determinations in 38 patients with various neurological disorders have shown consistently lower concentrations of dopamine sulfate, norepinephrine sulfate, and epinephrine

At present, urinary vanillylmandelic acid (VMA) and/or homovanillic acid (HVA), metabolites of catecholamines, are the most sensitive diagnostic markers of neuroblastoma. They can be measured by the high-performance liquid chromatographic method, which has been used to screen for neuroblastoma in

The interference of various foodstuffs on methods to determine epinephrine (E), norepinephrine (NE), vanillylmandelic acid (VMA), metanephrines (MN), homovanillic acid (HVA), and 6-hydroxyindole acetic acid (5-HIA) in the 24 h urine for diagnosis of pheochromocytoma and carcinoid syndrome,

Concentrations of vanillylmandelic acid (VMA), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), vanillic acid (VA) and 5-hydroxyindoleacetic acid (5-HIAA) in urine from healthy subjects were determined by a high-performance liquid chromatography system with a mixed-mode