Abstract：
:Previous tract-tracing studies demonstrated the existence of projections from the medial preoptic nucleus (POM) to the mesencephalic central gray (GCt) in quail. GCt contains a significant number of aromatase-immunoreactive (ARO-ir) fibers and punctate structures, but no ARO-ir cells are present in this region. The origin of the ARO-ir fibers of the GCt was investigated here by retrograde tract-tracing combined with immunocytochemistry for aromatase. Following injection of fluorescent microspheres in GCt, retrogradely labeled cells were found in a large number of hypothalamic and mesencephalic areas and in particular within the three main groups of ARO-ir cells located in the POM, the ventromedial nucleus of the hypothalamus, and the bed nucleus striae terminalis. Labeling of these cells for aromatase by immunocytochemistry demonstrated, however, that aromatase-positive retrogradely labeled cells are observed almost exclusively within the POM. Double-labeled cells were abundant in both the rostral and caudal parts of the POM and their number was apparently not affected by the location of the injection site within GCt. At both rostro-caudal levels of the POM, ARO-ir retrogradely labeled cells were, however, more frequent in the lateral than in the medial POM. These data indicate that ARO-ir neurons located in the lateral part of the POM may control the premotor aspects of male copulatory behavior through their projection to GCt and suggest that GCt activity could be affected by estrogens released from the terminals of these ARO-ir neurons.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Absil P,Riters LV,Balthazart Jdoi
10.1006/hbeh.2001.1702keywords:
subject
Has Abstractpub_date
2001-11-01 00:00:00pages
369-83issue
3eissn
0018-506Xissn
1095-6867pii
S0018-506X(01)91702-7journal_volume
40pub_type
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2005.08.002
更新日期：2006-03-01 00:00:00
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journal_title：Hormones and behavior
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journal_title：Hormones and behavior
pub_type： 杂志文章
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journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2009.09.018
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journal_title：Hormones and behavior
pub_type： 杂志文章
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journal_title：Hormones and behavior
pub_type： 杂志文章
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更新日期：2004-04-01 00:00:00
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journal_title：Hormones and behavior
pub_type： 杂志文章
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更新日期：2013-03-01 00:00:00
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journal_title：Hormones and behavior
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更新日期：2017-01-01 00:00:00
abstract：:Testosterone has been shown to increase the volume of steroid-sensitive brain nuclei in adulthood in several vertebrate species. In male Japanese quail the volume of the male-biased sexually dimorphic medial preoptic nucleus (POM), a key brain area for the control of male sexual behavior, is markedly increased by test...
journal_title：Hormones and behavior
pub_type： 杂志文章
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更新日期：2008-09-01 00:00:00
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journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(90)90016-q
更新日期：1990-09-01 00:00:00
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journal_title：Hormones and behavior
pub_type： 杂志文章,评审
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更新日期：2006-11-01 00:00:00
