Correlation between urinary levels of histamine metabolites in 24-hour urine and morning urine samples of man: influence of histamine-rich food
- PMID: 2473623
- DOI: 10.1007/BF02222240
Correlation between urinary levels of histamine metabolites in 24-hour urine and morning urine samples of man: influence of histamine-rich food
Abstract
In this study, we have determined and correlated the excretion of the 2 most important histamine metabolites, N tau-methylhistamine and N tau-methylimidazoleacetic acid, in 24-hour urine and morning urine samples of 14 normal healthy persons. We found no significant difference between morning urine and 24-hour urine samples, provided that the subjects were on a histamine-poor diet for at least 24 hours. We also studied the influence of the consumption of histamine-rich foodstuffs on the reliability of these parameters. The morning urinary N tau-methylhistamine excretion is less affected by histamine-rich food-stuffs and therefore proposed to be the most reliable parameter for endogeneous histamine release.
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