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e-Article

Aquatic versus mammalian toxicology: applications of the comparative approach
Document Type
Journal Article
Author
Source
Environ. Health Perspect.; (United States); 71
Subject
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT. PHENOLS
PHARMACOLOGY
TISSUE DISTRIBUTION
WATER POLLUTION
TOXICITY
ABSORPTION
BILE
BIOLOGICAL MODELS
COMPARTMENTS
FISHES
GILLS
LUNGS
MAMMALS
URINE
ANIMALS
AQUATIC ORGANISMS
AROMATICS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BODY
BODY FLUIDS
DISTRIBUTION
HYDROXY COMPOUNDS
MATERIALS
ORGANIC COMPOUNDS
ORGANS
POLLUTION
RESPIRATORY SYSTEM
VERTEBRATES
WASTES 560300* -- Chemicals Metabolism & Toxicology
Language
English
Abstract
The large body of literature and techniques generated by mammalian toxicity studies provides a conceptual and technical framework within which the absorption, fate, and disposition of xenobiotics in aquatic organisms can be studied. This review emphasizes the similarities and differences between mammalian and aquatic systems, e.g., lung vs. gill as site of absorption and toxicity. These must be taken into consideration when designing aquatic toxicity studies. Studies of phenol red in dogfish shark as an example show physiologic-based pharmacokinetic modeling to be a useful tool for investigating and eventually predicting species differences in xenobiotic disposition and drug differences within the same species. This discussion demonstrates that both laboratory and modeling procedures are now available to carry out sophisticated studies of xenobiotic fate and disposition in fish. Such studies are needed to pinpoint sites and mechanisms of pollutant toxicity in aquatic organisms.