Quercetin tests negative for genotoxicity in transcriptome analyses of liver and small intestine of mice

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)

Abstract

Given the positive results of quercetin in in vitro genotoxicity studies, the in vivo genotoxic properties of this important dietary flavonoid warrant testing, especially considering possible high intake via widely available food supplements. Here, this was done by transcriptome analyses of the most relevant tissues, liver and small intestine, of quercetin supplemented mice. Quercetin (0.33%) supplemented to a high-fat diet was administered to mice during 12 weeks. Serum alanine aminotransferase and aspartate aminotransferase levels revealed no indications for hepatotoxicity. Microarray pathway analysis of liver and small intestine showed no regulation of genotoxicity related pathways. Analysis of DNA damage related genes also did not point at genotoxicity. Furthermore, a published classifier set of transcripts for identifying genotoxic compounds did not indicate genotoxicity. Only two transcripts of the classifier set were regulated, but in the opposite direction compared with the genotoxic compounds 2-acetylaminofluorene (2-AAF) and aflatoxin B1 (AFB1). Based on the weight of evidence of three different types of analysis, we conclude that supplementation with quercetin at ~350¿mg/kg bw/day for 12 weeks in mice showed no up-regulation of genotoxicity related pathways in liver and small intestine.
Original languageEnglish
Pages (from-to)34-39
JournalFood and Chemical Toxicology
Volume81
DOIs
Publication statusPublished - 2015

Keywords

  • in-vivo
  • reverse mutation
  • bone-marrow
  • dna-damage
  • flavonoids
  • rats
  • cells
  • carcinogenicity
  • mutagenicity
  • polyphenols

Fingerprint

Dive into the research topics of 'Quercetin tests negative for genotoxicity in transcriptome analyses of liver and small intestine of mice'. Together they form a unique fingerprint.

Cite this