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Developmental changes in estrogen-sensitive neurons in the forebrain of the zebra finch

Gahr, Manfred and Konishi, Masakazu (1988) Developmental changes in estrogen-sensitive neurons in the forebrain of the zebra finch. Proceedings of the National Academy of Sciences of the United States of America, 85 (19). pp. 7380-7383. ISSN 0027-8424. http://resolver.caltech.edu/CaltechAUTHORS:GAHpnas88

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Abstract

The brain areas for the control of song are sexually dimorphic in the zebra finch (Poephila guttata). Implantation of estrogen in young females within the first 40 days after hatching masculinizes their brain song areas. Monoclonal antibody (H222Spγ) against the estrogen receptor was used for the localization of estrogen-target cells in the brain. The nucleus hyperstriatum ventrale, pars caudale, was the only song control area that contained cells with estrogen-receptor sites. The number of these cells varied during ontogeny and declined sharply after day 40. No other song areas contained estrogen-target cells despite their ability to undergo masculine differentiation under the influence of estrogen. Therefore, the action of estrogen on these nuclei must be indirect.


Item Type:Article
Additional Information:Copyright © 1988 by the National Academy of Sciences. Contributed by Masakazu Konishi, May 26, 1988. We thank E. Akutagawa for assistance, Drs. B. S. McEwen, M. J. Walters, and S. F. Volman for reading an early version of the manuscript, the Markey Charitable Trust for financial support through a grant to the Division of Biology, the German Academic Exchange Agency for a fellowship to M.G., and Abbott Laboratories for donation of the antibody. The publication costs of this article were defrayed in part by page charge payment. This article must therefore be hereby marked "advertisement" in accordance with 18 U.S.C. §1734 solely to indicate this fact.
Subject Keywords:brain; gender difference; antibody
Record Number:CaltechAUTHORS:GAHpnas88
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:GAHpnas88
Alternative URL:http://www.pnas.org/cgi/content/abstract/85/19/7380
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1609
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Feb 2006
Last Modified:14 Nov 2014 19:19

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