Academic Journal
Neuroanatomical distribution of the serotonergic system in the brain and retina of holostean fishes, the sister group to teleosts
| العنوان: | Neuroanatomical distribution of the serotonergic system in the brain and retina of holostean fishes, the sister group to teleosts |
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| المؤلفون: | Lozano Rebollo, Daniel, González Gallegos, Agustín, López Redondo, Jesús María |
| بيانات النشر: | Karger |
| سنة النشر: | 2020 |
| المجموعة: | Universidad Complutense de Madrid (UCM): E-Prints Complutense |
| مصطلحات موضوعية: | 591.18, 577.112, Serotonin, Immunohistochemistry, Epiphysis, Raphe column, Lepisosteus, Atractosteus, Amia, Brain evolution, Fisiología animal (Biología), Neurociencias (Biológicas), Peces, 2401.13 Fisiología Animal, 2490 Neurociencias |
| Time: | 597 |
| الوصف: | Among actinopterygian fishes, holosteans are the phylogenetically closest group to teleosts but they have been much less studied, particularly regarding the neurochemical features of their central nervous system. The serotonergic system is one of the most important and conserved systems of neurotransmission in all vertebrates. By means of immunohistochemistry against serotonin (5-hydroxytryptamine), we have conducted a comprehensive and complete description of this system in the brain and retina of representative species of the 3 genera of holostean fishes, belonging to the only 2 extant orders, Amiiformes and Lepisosteiformes. Serotonin-immunoreactive cell groups were detected in the preoptic area, the hypothalamic paraventricular organ, the epiphysis, the pretectal region, the long and continuous column of the raphe, the spinal cord, and the inner nuclear layer of the retina. Specifically, the serotonergic cell groups in the preoptic area, the epiphysis, the pretectum, and the retina had never been identified in previous studies in this group of fishes. Widespread serotonergic innervation was observed in all main brain regions, but more abundantly in the subpallium, the hypothalamus, the habenula, the optic tectum, the so-called cerebellar nucleus, and the area postrema. The comparative analysis of these results with those in other groups of vertebrates reveals some extremely conserved features, such as the presence of serotonergic cells in the retina, the pineal organ, and the raphe column, while other characteristics, like the serotonergic populations in the preoptic area, the paraventricular organ, the pretectum, and the spinal cord are generally present in all fish groups, but have been lost in most amniotes. ; Ministerio de Ciencia e Innovación (MICINN)/Fondo Europeo de Desarrollo Regional (FEDER) ; Depto. de Biología Celular ; Fac. de Ciencias Biológicas ; TRUE ; pub |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | (BFU2015-66041P ); https://hdl.handle.net/20.500.14352/6567; 0006-8977, ESSN 1421-9743; https://www.karger.com/Article/FullText/505473 |
| DOI: | 10.1159/000505473 |
| الاتاحة: | https://hdl.handle.net/20.500.14352/6567 https://doi.org/10.1159/000505473 https://www.karger.com/Article/FullText/505473 |
| Rights: | restricted access |
| رقم الانضمام: | edsbas.C1F1BB13 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1159/000505473 |
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