An Exploratory Analysis of Stream Teratogenicity and Human Health Using Zebrafish Whole-Sediment Toxicity Test

This study demonstrates a novel application of effect-based toxicity testing for streams that may provide indications of co-perturbation to ecological and human health. For this study, a sediment contact assay using zebrafish (Danio rerio) embryos was adapted to serve as an indicator of teratogenic...

Full description

Saved in:
Bibliographic Details
Published in:Challenges (Basel) 2014-01, Vol.5 (1), p.75-97
Main Authors: Dellinger, Matthew, Carvan, Michael J, Klingler, Rebekah H, McGraw, Joseph E, Ehlinger, Timothy
Format: Article
Language:English
Subjects:
Assaying
bioassay
Bioassays
Cardiovascular diseases
congenital heart disease
Contact
Embryos
Environmental indicators
Environmental stress
Fluvial sediments
Freshwater
Great Lakes
Health
Human
Indicators
Infant mortality
Sediment samplers
sediment toxicity
Sediments
Streams
Teratogenicity
Toxicity testing
Watersheds
Zebrafish
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study demonstrates a novel application of effect-based toxicity testing for streams that may provide indications of co-perturbation to ecological and human health. For this study, a sediment contact assay using zebrafish (Danio rerio) embryos was adapted to serve as an indicator of teratogenic stress within river sediments. Sediment samples were collected from Lake Michigan tributary watersheds. Sediment contact assay responses were then compared to prevalence of congenital heart disease (CHD) and vital statistic birth indicators aggregated from civil divisions associated with the watersheds. Significant risk relationships were detected between variation in early life-stage (ELS) endpoints of zebrafish embryos 72 h post-fertilization and the birth prevalence of human congenital heart disease, low birthweight and infant mortality. Examination of principal components of ELS endpoints suggests that variance related to embryo heart and circulatory malformations is most closely associated with human CHD prevalence. Though toxicity assays are sometimes used prospectively, this form of investigation can only be conducted retrospectively. These results support the hypothesis that bioassays normally used for ecological screening can be useful as indicators of environmental stress to humans and expand our understanding of environmental-human health linkages.
ISSN:2078-1547
2078-1547
DOI:10.3390/challe5010075