Region-specific rapid regulation of aromatase activity in zebra finch brain
نویسندگان
چکیده
منابع مشابه
Region-Specific Rapid Regulation of Aromatase Activity in Zebra Finch Brain.
Recent studies demonstrate that rapid modulation of the estrogen synthetic enzyme aromatase, regulates hypothalamic (HYP) estrogen production and subsequent neurophysiology and reproductive behavior. In songbirds, in addition to expression in the HYP, aromatase is expressed at high levels in several brain regions notably in the hippocampus (HP) and caudomedial nidopallium (NCM), where estrogens...
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The vertebrate brain is a source of estrogen (E) via the expression of aromatase (E-synthase). In the zebra finch (Taeniopygia guttata), despite documented dimorphisms in E-action, no differences are detectable in circulating E, or the neural levels of aromatase transcription, activity, or somal protein expression. Studies of aromatase expression at the light- and electron-microscope levels rev...
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Numerous steroid hormones, including 17β-estradiol (E2), activate rapid and transient cellular, physiological, and behavioral changes in addition to their well-described genomic effects. Aromatase is the key-limiting enzyme in the production of estrogens, and the rapid modulation of this enzymatic activity could produce rapid changes in local E2 concentrations. The mechanisms that might mediate...
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All-trans retinoic acid (ATRA), the main active metabolite of vitamin A, is a powerful signaling molecule that regulates large-scale morphogenetic processes during vertebrate embryonic development, but is also involved post-natally in regulating neural plasticity and cognition. In songbirds, it plays an important role in the maturation of learned song. The distribution of the ATRA-synthesizing ...
متن کاملNeuronal and non-neuronal aromatase in primary cultures of developing zebra finch telencephalon.
Estrogenic metabolites of circulating androgens have important effects on the organization and activation of neural circuits controlling reproductive behavior and physiology in males of many vertebrate species. Previous studies indicate that aromatase, the enzyme that converts androgens to estrogens, is expressed most abundantly in neurons in limbic brain regions. Songbirds are unique in that a...
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ژورنال
عنوان ژورنال: Journal of Neurochemistry
سال: 2016
ISSN: 0022-3042
DOI: 10.1111/jnc.13513