Effects of crude oil vapors on the cardiovascular flow of embryonic Gulf killifish.
Sci Total Environ
; 751: 141627, 2021 Jan 10.
Article
em En
| MEDLINE
| ID: mdl-33181982
ABSTRACT
Direct contact with toxicants in crude oil during embryogenesis causes cardiovascular defects, but the effects of exposure to airborne volatile organic compounds released from spilled oil are not well understood. The effects of crude oil-derived airborne toxicants on peripheral blood flow were examined in Gulf killifish (Fundulus grandis) since this model completes embryogenesis in the air. Particle image velocimetry was used to measure in vivo blood flow in intersegmental arteries of control and oil-exposed embryos. Significant effects in oil-exposed embryos included increased pulse rate, reduced mean blood flow speed and volumetric flow rate, and decreased pulsatility, demonstrating that normal-appearing oil-exposed embryos retain underlying cardiovascular defects. Further, hematocrit moderately increased in oil-exposed embryos. This study highlights the potential for fine-scale physiological measurement techniques to better understand the sub-lethal effects of oil exposure and demonstrates the efficacy of Gulf killifish as a unique teleost model for aerial toxicant exposure studies.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
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Petróleo
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Sistema Cardiovascular
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Poluição por Petróleo
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Circulação Coronária
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Fundulidae
Limite:
Animals
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article