PUBLICATION

(Eco)toxicological effects of 2,4,7,9-tetramethyl-5-decyne-4,7-diol (TMDD) in zebrafish (Danio rerio) and permanent fish cell cultures

Authors
Vincze, K., Gehring, M., Braunbeck, T.
ID
ZDB-PUB-140513-237
Date
2014
Source
Environmental science and pollution research international   21(13): 8233-41 (Journal)
Registered Authors
Braunbeck, Thomas
Keywords
none
MeSH Terms
  • Animals
  • Cells, Cultured
  • Comet Assay
  • Embryo, Nonmammalian/drug effects
  • Embryonic Development/drug effects*
  • Endocrine Disruptors/toxicity*
  • Fatty Alcohols/toxicity*
  • Female
  • Fishes
  • Male
  • Micronucleus Tests
  • Paper
  • Reproduction/drug effects
  • Rivers/chemistry
  • Sexual Maturation/drug effects*
  • Water Pollutants, Chemical/toxicity*
  • Zebrafish
PubMed
24687796 Full text @ Environ. Sci. Pollut. Res. Int.
Abstract
2,4,7,9-tetramethyl-5-decyne-4,7-diol (TMDD) is a high-production volume chemical used in paper, ink, pesticide, and adhesive industries as a wetting and anti-foaming agent. The physicochemical properties and slow biodegradation rate of TMDD indicate a low bioaccumulation potential but a high prevalence in the environment. As a consequence, TMDD has been detected in several European rivers in the nanogram per liter and lower microgram per liter range; however, its environmental risk to aquatic organisms is considered low. Recent studies almost exclusively focused on acute effects by TMDD, little is known about cytotoxic and genotoxic effects, reproduction and developmental toxicity, endocrine disruption, and any kind of long-term toxicity and carcinogenicity so far. The present study aims to provide more specific baseline information on the ecotoxicological effects of TMDD in fish. For this end, cyto- and genotoxicity assays were carried out in vitro with the permanent fish cell line RTL-W1; in addition, in vivo studies were conducted with the early life stages of zebrafish (Danio rerio) in order to fill the data gaps in developmental toxicity and endocrine disruption. TMDD showed a cytotoxic and slight genotoxic potential in fish cell lines; moreover, various sublethal and lethal effects could be detected in developing zebrafish embryos. There was no evidence of endocrine-disrupting effects by TMDD; however, mortality following prolonged exposure to TMDD during fish sexual development test was clearly higher than mortality in the fish embryo test after 96-h exposure. Our results thus confirmed previous findings of laboratory screening tests, suggesting short-term toxic effects of TMDD in the intermediate, and long-term effects in the lower milligram per liter range.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping