کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2799498 1155988 2009 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Neurosteroid production in the songbird brain: A re-evaluation of core principles
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی علوم غدد
پیش نمایش صفحه اول مقاله
Neurosteroid production in the songbird brain: A re-evaluation of core principles
چکیده انگلیسی
Concepts of brain-steroid signaling have traditionally placed emphasis on the gonads and adrenals as the source of steroids, the strict dichotomy of early developmental (“organizational”) and mature (“activational”) effects, and a relatively slow mechanism of signaling through intranuclear receptors. Continuing research shows that these concepts are not inaccurate, but they are certainly incomplete. In this review, we focus on the song control circuit of songbird species to demonstrate how each of these concepts is limited. We discuss the solid evidence for steroid synthesis within the brain (“neurosteroidogenesis”), the role of neurosteroids in organizational events that occur both early in development and later in life, and how neurosteroids can act in acute and non-traditional ways. The songbird model therefore illustrates how neurosteroids can dramatically increase the diversity of steroid-sensitive brain functions in a behaviorally-relevant system. We hope this inspires further research and thought into neurosteroid signaling in songbirds and other animals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Frontiers in Neuroendocrinology - Volume 30, Issue 3, August 2009, Pages 302-314
نویسندگان
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