NDLI: Development of a brain nucleus involved in song production in zebra finches (Taeniopygia guttata) is disrupted by Aroclor 1248.

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Development of a brain nucleus involved in song production in zebra finches (Taeniopygia guttata) is disrupted by Aroclor 1248.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Hoogesteijn, Almira L. Kollias, George V. Quimby, Fred W. De Caprio, Anthony P. Winkler, David W. DeVoogd, Timothy J.
Description	Country affiliation: Mexico Author Affiliation: Hoogesteijn AL ( Department of Human Ecology, Centro de Investigación y de Estudios Avanzados del Instituto Politecnico Nacional Merida, Km 6 Antigua Carretera a Progreso, Yucatán, CP 97310, Mexico. almirahoo@mda.cinvestav.mx)
Abstract	We studied whether polychlorinated biphenyls (PCBs) may alter the development of song control brain nuclei in zebra finch (Taeniopygia guttata) offspring of pulse-exposed hens. We orally administered 40 microg of Aroclor 1248 to adult female finches before egg laying. When the progeny were 50 d old, we measured the volumes of the song control nuclei robustus arcopallialis (RA) and higher vocal center (HVC) using light microscopy. Both male and female progeny of exposed birds had a significantly smaller RA than control birds (36 and 16%, respectively; p < or = 0.05). The HVC did not differ in either sex between exposed and control groups. Perhaps impaired development of RA was caused by PCB action on steroid receptors. We conclude that animals living in contaminated areas may be at risk of neurological damage in hormone-sensitive brain areas and that changes in brain nuclei related to song may be a sensitive indicator of low-level PCB exposure.
File Format	HTM / HTML
ISSN	07307268
Issue Number	10
Volume Number	27
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2008-10-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Animals, Newborn Research Support, U.s. Gov't, Non-p.h.s. Brain Research Support, Non-u.s. Gov't Finches Toxicity Discipline Environmental Health Vocalization, Animal Discipline Toxicology Male Aroclors Drug Effects Endocrine Disruptors Journal Article Growth & Development Chemistry Animals Discipline Chemistry Female Physiology Ovum
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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Testosterone facilitates some conspecific song discriminations in castrated zebra finches (Taeniopygia guttata).

Developmental pattern of diacylglycerol lipase-α (DAGLα) immunoreactivity in brain regions important for song learning and control in the zebra finch (Taeniopygia guttata)

Role of gender, season, and familiarity in discrimination of conspecific song by zebra finches (Taeniopygia guttata).

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Tissue uptake, mortality, and sublethal effects of monomethylarsonic acid (MMA(V)) in nestling zebra finches (Taeniopygia guttata).

Embryological staging of the Zebra Finch, Taeniopygia guttata.

Brain expression and song regulation of the cholecystokinin gene in the zebra finch (Taeniopygia guttata).

Dopamine binds to alpha(2)-adrenergic receptors in the song control system of zebra finches (Taeniopygia guttata).

Social affiliation relates to tyrosine hydroxylase immunolabeling in male and female zebra finches (Taeniopygia guttata).

Development of a brain nucleus involved in song production in zebra finches (Taeniopygia guttata) is disrupted by Aroclor 1248.

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Testosterone facilitates some conspecific song discriminations in castrated zebra finches (Taeniopygia guttata).

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Dopamine binds to alpha(2)-adrenergic receptors in the song control system of zebra finches (Taeniopygia guttata).

Social affiliation relates to tyrosine hydroxylase immunolabeling in male and female zebra finches (Taeniopygia guttata).

Development of a brain nucleus involved in song production in zebra finches (Taeniopygia guttata) is disrupted by Aroclor 1248.