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• W2029490616 abstract "The zebra finch song system provides an excellent model to study the mechanisms underlying the development of sex difference in brain structure and function. Only male zebra finches sing and the brain nuclei controlling song learning and production are considerably larger than in females. Sexual differentiation may in part be regulated by estrogen, but other molecules including neurotrophic factors likely also affect masculinization. Brain derived neurotrophic factor (BDNF) plays a crucial role in numerous aspects of vertebrate brain development and function, including neurogenesis, cell survival, growth of axonal projections, synaptogenesis and processes linked to learning and memory. The current study investigated the expression of BDNF protein in juvenile males and females at four ages, as well as in adults, to begin to evaluate the potential roles of endogenous BDNF in particular stages of structural and functional development of the song system. In both HVC and the robust nucleus of the arcopallium (RA), males had more BDNF+ cells than females. The number of immunopositive cells increased in males and decreased in females as they matured, in a pattern generally consistent with a role for BDNF in sensorimotor integration of song learning. In addition, in HVC (but not RA) the ratio of mature BDNF compared to its precursor proBDNF was greater in adult males than those at post-hatching day 25, indicating a region-specific shift in the relative availability of the two forms. Collectively, the data suggest that changes in BDNF protein expression across development may be associated with song system maturation, particularly during the sensorimotor integration of masculine vocalizations." @default.
• W2029490616 created "2016-06-24" @default.
• W2029490616 creator A5041644754 @default.
• W2029490616 creator A5080009656 @default.
• W2029490616 date "2013-10-01" @default.
• W2029490616 modified "2023-09-23" @default.
• W2029490616 title "Developmental changes in BDNF protein in the song control nuclei of zebra finches" @default.
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• W2029490616 doi "https://doi.org/10.1016/j.neuroscience.2013.07.062" @default.
• W2029490616 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3789383" @default.
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