PMID- 23920158 OWN - NLM STAT- MEDLINE DCOM- 20140404 LR - 20211021 IS - 1873-7544 (Electronic) IS - 0306-4522 (Print) IS - 0306-4522 (Linking) VI - 250 DP - 2013 Oct 10 TI - Developmental changes in BDNF protein in the song control nuclei of zebra finches. PG - 578-87 LID - S0306-4522(13)00656-8 [pii] LID - 10.1016/j.neuroscience.2013.07.062 [doi] AB - 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. CI - Copyright (c) 2013 IBRO. Published by Elsevier Ltd. All rights reserved. FAU - Tang, Y P AU - Tang YP AD - Michigan State University, Department of Psychology, East Lansing, MI 48824, USA; Michigan State University, Neuroscience Program, East Lansing, MI 48824, USA. Electronic address: tangyupi@msu.edu. FAU - Wade, J AU - Wade J LA - eng GR - R01 MH096705/MH/NIMH NIH HHS/United States GR - R01-MH096705/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20130803 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 RN - 0 (Brain-Derived Neurotrophic Factor) SB - IM MH - Animals MH - Blotting, Western MH - Brain/*growth & development/*physiology MH - Brain Chemistry/physiology MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Female MH - Finches/*physiology MH - Immunohistochemistry MH - Male MH - Sex Characteristics MH - Sex Differentiation/physiology MH - Vocalization, Animal/*physiology PMC - PMC3789383 MID - NIHMS512650 OTO - NOTNLM OT - ANOVA OT - BDNF OT - E2 OT - LMAN OT - NGS OT - Neurotrophic factor OT - PBS OT - PVDF OT - RA OT - Sexual differentiation OT - Songbird OT - TrkB OT - analysis of variance OT - brain-derived neurotrophic factor OT - estradiol OT - lateral magnocellular nucleus of the anterior nidopallium OT - mBDNF OT - mature BDNF OT - normal goat serum OT - p75 pan-neurotrophin receptor OT - p75NTR OT - phosphate-buffered saline OT - polyvinyl difluoride OT - robust nucleus of the arcopallium OT - tyrosine kinase receptors EDAT- 2013/08/08 06:00 MHDA- 2014/04/05 06:00 PMCR- 2014/10/10 CRDT- 2013/08/08 06:00 PHST- 2013/05/02 00:00 [received] PHST- 2013/07/25 00:00 [revised] PHST- 2013/07/27 00:00 [accepted] PHST- 2013/08/08 06:00 [entrez] PHST- 2013/08/08 06:00 [pubmed] PHST- 2014/04/05 06:00 [medline] PHST- 2014/10/10 00:00 [pmc-release] AID - S0306-4522(13)00656-8 [pii] AID - 10.1016/j.neuroscience.2013.07.062 [doi] PST - ppublish SO - Neuroscience. 2013 Oct 10;250:578-87. doi: 10.1016/j.neuroscience.2013.07.062. Epub 2013 Aug 3.