Correlation between an in vitro and an in vivo measure of dioxin sensitivity in birds.
Ecotoxicology
; 19(2): 377-82, 2010 Feb.
Article
en En
| MEDLINE
| ID: mdl-19784771
ABSTRACT
We describe a statistically significant correlation between two well-characterized responses to dioxin-like compounds in birds; induction of 7-ethoxyresorufin-O-deethylase (EROD) activity in cultured hepatocytes, and embryo mortality. Data were obtained from a review of the literature. EROD EC50 values for 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and 6 polychlorinated biphenyls (PCBs) were strongly correlated with LD50 values in chicken embryos (r(2) = 0.93, P < 0.005). Similarly, EROD EC50 values for TCDD and a potent dioxin-like compound, PCB 126, were correlated with embryonic LD50 values in different species of birds (chicken, ring-necked pheasant, turkey, double-crested cormorant, and common tern) (r(2) = 0.92, P < 0.005). Our findings contribute to a developing understanding of the molecular basis for differential dioxin sensitivity in birds, and validate the EROD bioassay as a useful predictive tool for ecological risk assessment.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Aves
/
Citocromo P-450 CYP1A1
/
Dioxinas
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Animals
País/Región como asunto:
Asia
Idioma:
En
Revista:
Ecotoxicology
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Estados Unidos