Commentary of the SKLM to the EFSA opinion on risk assessment of N-nitrosamines in food.
Journal
Archives of toxicology
ISSN: 1432-0738
Titre abrégé: Arch Toxicol
Pays: Germany
ID NLM: 0417615
Informations de publication
Date de publication:
04 Apr 2024
04 Apr 2024
Historique:
received:
05
03
2024
accepted:
06
03
2024
medline:
4
4
2024
pubmed:
4
4
2024
entrez:
4
4
2024
Statut:
aheadofprint
Résumé
Dietary exposure to N-nitrosamines has recently been assessed by the European Food Safety Authority (EFSA) to result in margins of exposure that are conceived to indicate concern with respect to human health risk. However, evidence from more than half a century of international research shows that N-nitroso compounds (NOC) can also be formed endogenously. In this commentary of the Senate Commission on Food Safety (SKLM) of the German Research Foundation (DFG), the complex metabolic and physiological biokinetics network of nitrate, nitrite and reactive nitrogen species is discussed with emphasis on its influence on endogenous NOC formation. Pioneering approaches to monitor endogenous NOC have been based on steady-state levels of N-nitrosodimethylamine (NDMA) in human blood and on DNA adduct levels in blood cells. Further NOC have not been considered yet to a comparable extent, although their generation from endogenous or exogenous precursors is to be expected. The evidence available to date indicates that endogenous NDMA exposure could exceed dietary exposure by about 2-3 orders of magnitude. These findings require consolidation by refined toxicokinetics and DNA adduct monitoring data to achieve a credible and comprehensive human health risk assessment.
Identifiants
pubmed: 38573336
doi: 10.1007/s00204-024-03726-1
pii: 10.1007/s00204-024-03726-1
doi:
Types de publication
Editorial
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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