PUBLICATION

Intake of acrylamide at the dietary relevant concentration causes splenic toxicity in adult zebrafish

Authors
Komoike, Y., Nomura-Komoike, K., Matsuoka, M.
ID
ZDB-PUB-201002-178
Date
2020
Source
Environmental research   189: 109977 (Journal)
Registered Authors
Keywords
Acrylamide, Dietary intake, Immune response, Splenic toxicity, Zebrafish
MeSH Terms
  • Acrylamide*/toxicity
  • Animals
  • Diet
  • Hot Temperature
  • Spleen
  • Zebrafish*
PubMed
32980030 Full text @ Environ. Res.
Abstract
Acrylamide (AA) has recently been recognized as an immediate hazardous chemical compound owing to its various toxicities and unavoidable contamination of certain daily foods prepared at a high temperature. AA in foods is thus a worldwide concern; however, its toxicity at the dietary relevant concentration has yet to be experimentally elucidated. To determine whether dietary AA intake causes adverse health effects, adult zebrafish were fed a diet containing AA at a relevant dose for one month. Although AA-fed zebrafish showed no superficial abnormalities, their spleen was severely swollen. Therefore, their spleen was analyzed histologically and pathologically and the changes in cytokine expression in their spleen were also examined. Based on our findings, the intake of AA-containing food caused splenic damages, including cyst formation, hemorrhage, and inflammation, which were accompanied by immune responses as indicated by the appearance of a melanomacrophage center, activation of macrophages, and upregulation of major inflammatory cytokines in the spleen. Collectively, for the first time, we provided experimental evidence of the splenic toxicity caused by dietary AA intake.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping