Serotonergic innervation of the telencephalon in the domestic chick

Brain Research Bulletin
Martin MetzgerKatharina Braun

Abstract

The serotonergic system in the telencephalon of the domestic chick was investigated using an antibody specific to serotonin (5-HT). Most parts of the forebrain, such as the different subdivisions of the visual Wulst and the neostriatum, displayed a rather uniform, moderate to dense innervation of serotonergic (5-HT+) fibers. However, some highly distinct area-specific differences could be observed. Primary sensory areas such as the ectostriatum, layer L2 of field L, and the rostral part of the nucleus basalis displayed very few 5-HT+ fibers. In contrast, the dorsal part of the archistriatum intermedium, the nucleus taeniae, a medial part of the lobus parolfactorius and the dorsomedial part of the hippocampus displayed an extremely dense serotonergic innervation. In general, three different types of 5-HT+ axons could be distinguished. The most common was a fine, highly varicose type, whereas beaded axons, exhibiting larger varicosities, and a thick non-varicose type, exhibiting occasional swellings, were much sparser. In summary, these findings indicate that the serotonergic innervation of the avian telencephalon is extensive but site-specific, and is organized in a highly similar way to that in mammals. The high accumulation of...Continue Reading

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Citations

Nov 5, 2009·Zhurnal evoliutsionnoĭ biokhimii i fiziologii·M G BelekhovaN B Kenigfest
Sep 3, 2013·Oxidative Medicine and Cellular Longevity·Bo Wang, Yanli Du
Aug 12, 2010·Behavioural Brain Research·S TejadaS Esteban
Jun 30, 2009·Journal of Chemical Neuroanatomy·Cristiane MeneghelliJosé Marino-Neto
May 12, 2009·Behavioural Brain Research·Murilo Marcos Dos SantosJosé Marino-Neto
Apr 29, 2008·Consciousness and Cognition·Janina A KirschJonas Rose
Feb 14, 2006·Physiology & Behavior·Thomas FuchsVerner P Bingman
Nov 3, 2005·Current Opinion in Neurobiology·Onur Güntürkün
Jun 20, 2006·Neuroscience·M MetzgerC A B Toledo
Jan 6, 2018·Animals : an Open Access Journal From MDPI·Shailesh GurungMorgan Farnell
Feb 13, 2009·Reproduction in Domestic Animals = Zuchthygiene·J M Corpa, C M Martínez
Sep 13, 2011·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Naoyuki AiharaYumi Une
Jul 28, 2009·Behavioural Brain Research·Luciane Coutinho Azevedo CampanellaJosé Marino-Neto

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