DEVELOPMENT OF A BRAIN NUCLEUS INVOLVED IN SONG PRODUCTION IN ZEBRA FINCHES (TAENIOPYGIA GUTTATA) IS DISRUPTED BY AROCLOR 1248
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 μg of Aroclor 1248 to adult female finches before egg laying. When the progeny were 50 d old, we...
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| Veröffentlicht in: | Environmental toxicology and chemistry 2008-10, Vol.27 (10), p.2071-2075 |
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| creator | Hoogesteijn, Almira L Kollias, George V De Caprio, Anthony P Winkler, David W DeVoogd, Timothy J |
| description | 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 μg 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 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. |
| doi_str_mv | 10.1897/07-484.1 |
| format | Article |
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We orally administered 40 μg 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 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.</description><identifier>ISSN: 0730-7268</identifier><identifier>EISSN: 1552-8618</identifier><identifier>DOI: 10.1897/07-484.1</identifier><identifier>PMID: 18380522</identifier><language>eng</language><publisher>Hoboken: Wiley Periodicals, Inc</publisher><subject>Adults ; Animal communication ; Animals ; Animals, Newborn ; Aroclor ; aroclor 1248 ; Aroclors - toxicity ; Birds ; Brain ; Brain - drug effects ; Brain - growth & development ; Brain damage ; Circuit boards ; Copyrights ; Damage ; Endocrine disruption ; Endocrine Disruptors - toxicity ; endocrine-disrupting chemicals ; environmental exposure ; Exposure ; Female ; Females ; Finches - physiology ; Indicators ; Laying ; Light microscopy ; Male ; Males ; Microscopy ; Nuclei ; Offspring ; oral administration ; Ovum - chemistry ; Passeriformes ; PCB ; pollutants ; Polychlorinated biphenyls ; Presses ; Printed circuits ; Progeny ; Receptors ; Risk ; Song control system ; songbirds ; Taeniopygia guttata ; Vocalization, Animal - drug effects</subject><ispartof>Environmental toxicology and chemistry, 2008-10, Vol.27 (10), p.2071-2075</ispartof><rights>Copyright © 2008 SETAC</rights><rights>Copyright Allen Press Publishing Services Oct 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5701-cd4ed5d0948ff4c9dc46085fa0b9fa861d7126eef8be858441d2ac36ad39dfce3</citedby><cites>FETCH-LOGICAL-c5701-cd4ed5d0948ff4c9dc46085fa0b9fa861d7126eef8be858441d2ac36ad39dfce3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1897%2F07-484.1$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1897%2F07-484.1$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,27905,27906,45555,45556</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18380522$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hoogesteijn, Almira L</creatorcontrib><creatorcontrib>Kollias, George V</creatorcontrib><creatorcontrib>De Caprio, Anthony P</creatorcontrib><creatorcontrib>Winkler, David W</creatorcontrib><creatorcontrib>DeVoogd, Timothy J</creatorcontrib><title>DEVELOPMENT OF A BRAIN NUCLEUS INVOLVED IN SONG PRODUCTION IN ZEBRA FINCHES (TAENIOPYGIA GUTTATA) IS DISRUPTED BY AROCLOR 1248</title><title>Environmental toxicology and chemistry</title><addtitle>Environmental Toxicology and Chemistry</addtitle><description>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 μg 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 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.</description><subject>Adults</subject><subject>Animal communication</subject><subject>Animals</subject><subject>Animals, Newborn</subject><subject>Aroclor</subject><subject>aroclor 1248</subject><subject>Aroclors - toxicity</subject><subject>Birds</subject><subject>Brain</subject><subject>Brain - drug effects</subject><subject>Brain - growth & development</subject><subject>Brain damage</subject><subject>Circuit boards</subject><subject>Copyrights</subject><subject>Damage</subject><subject>Endocrine disruption</subject><subject>Endocrine Disruptors - toxicity</subject><subject>endocrine-disrupting chemicals</subject><subject>environmental exposure</subject><subject>Exposure</subject><subject>Female</subject><subject>Females</subject><subject>Finches - 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control brain nuclei in zebra finch (Taeniopygia guttata) offspring of pulse-exposed hens. We orally administered 40 μg 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 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.</abstract><cop>Hoboken</cop><pub>Wiley Periodicals, Inc</pub><pmid>18380522</pmid><doi>10.1897/07-484.1</doi><tpages>5</tpages></addata></record> |
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| subjects | Adults Animal communication Animals Animals, Newborn Aroclor aroclor 1248 Aroclors - toxicity Birds Brain Brain - drug effects Brain - growth & development Brain damage Circuit boards Copyrights Damage Endocrine disruption Endocrine Disruptors - toxicity endocrine-disrupting chemicals environmental exposure Exposure Female Females Finches - physiology Indicators Laying Light microscopy Male Males Microscopy Nuclei Offspring oral administration Ovum - chemistry Passeriformes PCB pollutants Polychlorinated biphenyls Presses Printed circuits Progeny Receptors Risk Song control system songbirds Taeniopygia guttata Vocalization, Animal - drug effects |
| title | DEVELOPMENT OF A BRAIN NUCLEUS INVOLVED IN SONG PRODUCTION IN ZEBRA FINCHES (TAENIOPYGIA GUTTATA) IS DISRUPTED BY AROCLOR 1248 |
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