PMID: 16519318Mar 8, 2006Paper

External heart deformities in passerine birds exposed to environmental mixtures of polychlorinated biphenyls during development

Environmental Toxicology and Chemistry
Jamie C DeWittD S Henshel

Abstract

Necropsy-observable cardiac deformities were evaluated from 283 nestling passerines collected from one reference site and five polychlorinated biphenyl (PCB)-contaminated sites around Bloomington and Bedford, Indiana, USA. Hearts were weighed and assessed on relative scales in three dimensions (height, length, and width) and for externally visible deformities. Heart weights normalized to body weight (heart somatic index) were decreased significantly at the more contaminated sites in both house wren (Troglodytes aedon) and tree swallow (Tachycineta bicolor). Heart somatic indices significantly correlated with log PCB concentrations in Carolina chickadee (Parus carolinesis) and tree swallow and with log 2,3,7,8-tetrachlorodibenzo-p-dioxin toxic equivalent values in tree swallow alone. Ventricular length was increased significantly in eastern bluebirds (Sialia sialis) and decreased significantly in Carolina chickadee and tree swallow from contaminated sites versus the reference site. Heart length regressed significantly against the log PCB concentrations (Carolina chickadee and tree swallow) or the square of the PCB concentrations (red-winged blackbird [Agelaius phoeniceus]) in a sibling bird. The deformities that were observed mo...Continue Reading

Citations

Aug 16, 2008·Archives of Environmental Contamination and Toxicology·T P AugspurgerR T Di Giulio
Dec 1, 2005·Ecotoxicology·Diane S Henshel, Daniel W Sparks
Jul 29, 2008·Toxicological Sciences : an Official Journal of the Society of Toxicology·Adrian C GrimesMargaret L Kirby
Feb 19, 2009·Toxicological Sciences : an Official Journal of the Society of Toxicology·Stephanie P Jones, Sean W Kennedy
Nov 17, 2007·Brain Research Reviews·Mary Ann OttingerCarla Viglietti-Panzica
Mar 22, 2014·Environmental Toxicology and Chemistry·Christy A MorrisseySteve J Ormerod
Sep 13, 2006·Reproductive Toxicology·Ronnie L YeagerDiane S Henshel
Jun 14, 2012·Chembiochem : a European Journal of Chemical Biology·Sung-Kyun Ko, Injae Shin
Dec 14, 2006·Journal of Biochemical and Molecular Toxicology·Ronnie L YeagerDiane S Henshel
Dec 3, 2009·Journal of Environmental Science and Health. Part C, Environmental Carcinogenesis & Ecotoxicology Reviews·Mary Ann OttingerKaren Dean
Apr 7, 2021·Journal of Wildlife Diseases·Alexandra LeijonJonas Malmsten
Sep 21, 2021·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Ryan TakeshitaAilsa J Hall

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