2,4-Decadienal does not induce genotoxic effects in in vivo micronucleus studies

Mutat Res Genet Toxicol Environ Mutagen. 2019 Oct:846:503082. doi: 10.1016/j.mrgentox.2019.503082. Epub 2019 Aug 11.

Abstract

2,4-Decadienal (E,E-) occurs naturally in foods and is also used as a flavoring ingredient. In vivo micronucleus studies were used to evaluate the potential for 2,4-decadienal to cause genotoxic effects. Male Han Wistar rats were dosed either by intraperitoneal injection or by gavage in two independent studies. The animals (12/group) received 25, 50, or 100 mg/kg bw of 2,4-decadienal via intraperitoneal injection, or 350, 700, or 1400 mg/kg bw via gavage. Dose-dependent decreases in the percentages of peripheral blood reticulocytes were observed in both studies, indicating that the target tissue was exposed to toxic levels of 2,4-decadienal. No induction of micronuclei in the bone marrow polychromatic erythrocytes or the peripheral blood reticulocytes was observed in either study. These results, coupled with previous mutagenicity studies, support the overall conclusion that 2,4-decadienal does not present a concern for genotoxicity.

Keywords: 2,4-decadienal; FEMA GRAS; Flavoring ingredient; Genotoxicity; Micronucleus; Rat.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Oral
  • Aldehydes / administration & dosage
  • Aldehydes / toxicity*
  • Animals
  • Bone Marrow Cells / drug effects
  • Bone Marrow Cells / ultrastructure
  • Dose-Response Relationship, Drug
  • Flavoring Agents / administration & dosage
  • Flavoring Agents / toxicity*
  • Injections, Intraperitoneal
  • Male
  • Micronucleus Tests / methods
  • Random Allocation
  • Rats
  • Rats, Wistar
  • Reticulocytes / drug effects
  • Reticulocytes / ultrastructure

Substances

  • Aldehydes
  • Flavoring Agents
  • 2,4-decadienal