Relevant bibliographies by topics / Nervous system – Fishes

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Academic literature on the topic 'Nervous system – Fishes'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Nervous system – Fishes"

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Gábriel, R. "The central nervous system of cartilaginous fishes: Structure and functional correlations." Neuroscience 26, no. 1 (1988): 364–65. http://dx.doi.org/10.1016/0306-4522(88)90152-2.

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Signore, Iskra A., Karina Palma, and Miguel L. Concha. "Nodal signalling and asymmetry of the nervous system." Philosophical Transactions of the Royal Society B: Biological Sciences 371, no. 1710 (2016): 20150401. http://dx.doi.org/10.1098/rstb.2015.0401.

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The role of Nodal signalling in nervous system asymmetry is still poorly understood. Here, we review and discuss how asymmetric Nodal signalling controls the ontogeny of nervous system asymmetry using a comparative developmental perspective. A detailed analysis of asymmetry in ascidians and fishes reveals a critical context-dependency of Nodal function and emphasizes that bilaterally paired and midline-unpaired structures/organs behave as different entities. We propose a conceptual framework to dissect the developmental function of Nodal as asymmetry inducer and laterality modulator in the nervous system, which can be used to study other types of body and visceral organ asymmetries. Using insights from developmental biology, we also present novel evolutionary hypotheses on how Nodal led the evolution of directional asymmetry in the brain, with a particular focus on the epithalamus. We intend this paper to provide a synthesis on how Nodal signalling controls left–right asymmetry of the nervous system. This article is part of the themed issue ‘Provocative questions in left–right asymmetry’.
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Mather, Jennifer A., and Michael J. Kuba. "The cephalopod specialties: complex nervous system, learning, and cognition." Canadian Journal of Zoology 91, no. 6 (2013): 431–49. http://dx.doi.org/10.1139/cjz-2013-0009.

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While clearly of molluscan ancestry, the coleoid cephalopods are emergent within the phylum for complexity of brain and behaviour. The brain does not just have centralization of the molluscan ganglia but also contains lobes with “higher order” functions such as storage of learned information, and centres have been compared with the vertebrate cerebellum and frontal lobe. The flexible muscular hydrostat movement system theoretically has unlimited degrees of freedom, and octopuses are models for “soft movement” robots. The decentralized nervous system, particularly in the arms of octopuses, results in decision making at many levels. Free of the molluscan shell and with evolutionary pressure from the bony fishes, coleoids have evolved a specialty in cognition and they may have a simple form of consciousness. Cephalopods also have a skin display system of unmatched complexity and excellence of camouflage, also used for communication with predators and conspecifics. A cephalopod is first and foremost a learning animal, using the display system for deception, having spatial memory, personalities, and motor play. They represent an alternative model to the vertebrates for the evolution of complex brains and high intelligence, which has as yet been only partly explored.
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New, John G., and Peter Y. Kang. "Multimodal sensory integration in the strike–feeding behaviour of predatory fishes." Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 355, no. 1401 (2000): 1321–24. http://dx.doi.org/10.1098/rstb.2000.0692.

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The search for useful model systems for the study of sensory processing in vertebrate nervous systems has resulted in many neuroethological studies investigating the roles played by a single sensory modality in a given behaviour. However, behaviours relying solely upon information from one sensory modality are relatively rare. Animals behaving in a complex, three–dimensional environment receive a large amount of information from external and internal receptor arrays. Clearly, the integration of sensory afference arising from different modalities into a coherent ‘gestalt’ of the world is essential to the behaviours of most animals. In the last several years our laboratory team has examined the roles played by the visual and lateral line sensory systems in organizing the feeding behaviour of two species of predatory teleost fishes, the largemouth bass, Micropterus salmoides , and the muskellunge, Esox masquinongy . The free–field feeding behaviours of these fishes were studied quantitatively in intact animals and compared to animals in which the lateral line and visual systems had been selectively suppressed. All groups of animals continued to feed successfully, but significant differences were observed between each experimental group, providing strong clues as to the relative role played by each sensory system in the organization of the behaviour. Furthermore, significant differences exist between the two species. The differences in behaviour resulting when an animal is deprived of a given sensory modality reflect the nature of central integrative sensory processes, and these behavioural studies provide a foundation for further neuroanatomical and physiological studies of sensory integration in the vertebrate central nervous system.
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Lederis, K., R. Yulis, J. Fryer, and G. Gonzalez. "Neuronal pathways for urotensins and other neuropeptides in the central nervous system of fishes." Regulatory Peptides 22, no. 1-2 (1988): 110. http://dx.doi.org/10.1016/0167-0115(88)90330-8.

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Langdon, J. S. "Observations on new Myxobolus species and Kudoa species infecting the nervous system of Australian fishes." Journal of Applied Ichthyology 6, no. 2 (1990): 107–16. http://dx.doi.org/10.1111/j.1439-0426.1990.tb00508.x.

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Toledo-Ibarra, G. A., A. E. Rojas-Mayorquín, and M. I. Girón-Pérez. "Influence of the Cholinergic System on the Immune Response of Teleost Fishes: Potential Model in Biomedical Research." Clinical and Developmental Immunology 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/536534.

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Fishes are the phylogenetically oldest vertebrate group, which includes more than one-half of the vertebrates on the planet; additionally, many species have ecological and economic importance. Fish are the first evolved group of organisms with adaptive immune mechanisms; consequently, they are an important link in the evolution of the immune system, thus a potential model for understanding the mechanisms of immunoregulation. Currently, the influence of the neurotransmitter acetylcholine (ACh) on the cells of the immune system is widely studied in mammalian models, which have provided evidence on ACh production by immune cells (the noncholinergic neuronal system); however, these neuroimmunomodulation mechanisms in fish and lower vertebrates are poorly studied. Therefore, the objective of this review paper was to analyze the influence of the cholinergic system on the immune response of teleost fish, which could provide information concerning the possibility of bidirectional communication between the nervous and immune systems in these organisms and provide data for a better understanding of basic issues in neuroimmunology in lower vertebrates, such as bony fishes. Thus, the use of fish as a model in biomedical research may contribute to a better understanding of human diseases and diseases in other animals.
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López, Jesús M., and Agustín González. "Organization of the Serotonergic System in the Central Nervous System of Two Basal Actinopterygian Fishes: the CladistiansPolypterus senegalusandErpetoichthys calabaricus." Brain, Behavior and Evolution 83, no. 1 (2014): 54–76. http://dx.doi.org/10.1159/000358266.

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Brösamle, Christian. "The myelin proteolipid DMalpha in fishes." Neuron Glia Biology 6, no. 2 (2009): 109–12. http://dx.doi.org/10.1017/s1740925x09000131.

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Vertebrate myelin membranes are compacted and held in close apposition by three structural proteins of myelin, myelin basic protein, myelin protein zero (MPZ) and myelin proteolipid protein (PLP1/DMalpha). PLP1/DMalpha is considered to function as a scaffolding protein and play a role in intracellular trafficking in oligodendrocytes. In humans, point mutations, duplications or deletions of PLP1 are associated with Pelizaeus–Merzbacher disease and spastic paraplegia Type 2. PLP1 is highly conserved between mammals, but less so in lower vertebrates. This has led some researchers to question whether certain fish species express PLP1 orthologues at all, and to suggest that the function of PLP1/DMalpha in the central nervous system (CNS) may have been taken over by MPZ. Here, we review the evidence for the conservation of orthologues of PLP1/DMalpha in actinopterygian fishes and provide a comparison of currently available sequence data across 17 fish species. Our analysis demonstrates that orthologues of PLP1/DMalpha have been retained and are functionally expressed in many, if not all, extant species of bony fish. Many of the amino acids that, when mutated, are associated with severe CNS pathology are conserved in teleosts, demonstrating conservation of essential functions and justifying the development of novel disease models in species such as the zebrafish.
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Lozano, Daniel, Agustín González, and Jesús M. López. "Neuroanatomical Distribution of the Serotonergic System in the Brain and Retina of Holostean Fishes, The Sister Group to Teleosts." Brain, Behavior and Evolution 95, no. 1 (2020): 25–44. http://dx.doi.org/10.1159/000505473.

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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.
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Dissertations / Theses on the topic "Nervous system – Fishes"

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Pereira, Thiago Nilton Alves. "Anatomia encefálica comparada de Characiformes (Teleostei: Ostariophysi)." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/59/59139/tde-18122014-143500/.

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A ordem Characiformes compreende cerca de 1700 espécies formalmente descritas que habitam a região Neotropical e com três famílias exclusivas da região da Etiópica subsaariana. Possui formas herbívoras, carnívoras e detritívoras, sendo uma ordem com hábitos ecológicos diversos. A classificação formal das famílias da ordem é baseada quase que estritamente em caracteres osteológicos e poucos caracteres de outras naturezas são utilizados para estabelecer hipóteses filogenéticas no grupo. Dessa maneira, o estudo do complexo morfológico encefálico preencheu essa lacuna representada pela ausência de novos caracteres de outra natureza morfológica que contribuam para o melhor entendimento das relações de parentesco entre os Characiformes. O presente estudo teve como objetivos principais a descrição e ilustração da macro morfologia encefálica de representantes das famílias de Characiformes e o levantamento de caracteres filogeneticamente informativos relacionados a esse complexo morfológico. Foram examinados 52 táxons terminais e 42 caracteres encefálicos. Adicionalmente a matriz de dados encefálicos, foram incoporados 126 caracteres osteológicos que definem os principais agrupamentos de Characiformes. O comportamento dos caracteres encefálicos foi mapeado através de uma análise de parcimônia, dessa maneira auxiliando a sustentar vários arranjos filogenéticos. Alguns arranjos filogenéticos novos foram obtidos, tais como, a relação de grupo-irmão entre Hemiodontidae + Chalceidae; Cynodontidae + Acestrorhynchidae como clado-irmão de Erythrinoidea; Gasteropelecidae + Triportheidae + Bryconidae sendo mais relacionados entre si; Crenuchidae como grupo-irmão de Characidae. Além dessas relações, corroborramos a elevação de algumas subfamílias de Characidae para o status de família, como Acestrorhynchidae, Bryconidae, Cynodontidae, Iguanodectidae e Triportheidae. A família Characidae tendo Heterocharacinae como ramo basal e sustentada principalmente por caracteres osteológicos tendo adicionalmente, um caráter exclusivo encefálico. Aphyoditeinae + Aphyocharacinae + Cheirodontinae mais relacionados e a subfamília Characinae como um grupo monofilético.<br>Characiformes comprises about 1.700 formally described species inhabiting the Neotropical region and three exclusives families of sub-Saharan Etiopic. The species of the order have herbivorous, carnivorous and detritivores feeding habits, being an order of several ecological habits. The formal classification of the families of the order is based almost exclusively on osteological characters and very few of characters of other types are used to establish phylogenetic hypotheses in the group. Thus, the present study of brain morphological complex aims to fill this gap represented by the absence of new morphological characters of another nature that might contribute to a better understanding of the relationships among the Characiformes. Thus, the present study had as main objectives the description and illustration of external brain morphology of representatives of all the families of Characiformes and the searching for phylogenetically informative encephalic morphological characters. For this, 52 terminal taxa and 42 brain characters were examined, in addition of brain data set, have been examined 126 osteological characters that define the main groups of Characiformes. The behavior of brain characters was mapped through a parsimony analysis, thus helping to sustain several phylogenetic arrangements of Characiformes. Some new phylogenetic arrangements were obtained, such as: the sister-group relationship between Hemiodontidae + Chalceidae; Cynodontidae + Acestrorhynchidae as clade-sisters of Erythrinoidea; Gasteropelecidae + Triportheidae + Bryconidae forming a monophyletic group; Crenuchidae as sister group of Characidae. In addition to these relationships, we corroboratethe elevation of some subfamilies of Characidae to family status, such as Acestrorhynchidae, Bryconidae, Cynodontidae, Iguanodectidae and Triportheidae. The Characidae family having Heterocharacinae as the most basal clade and sustained mainly by osteological characters, plus an exclusive character of brain nature. Aphyoditeinae + Aphyocharacinae related to Cheirodontinae and, Characinae subfamily as a monophyletic group.
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MELO, Janatar Stella Vasconcelos de. "Exercício em esteira e suplementação com óleo de peixe em ratos no início da vida: efeitos sobre ansiedade, memória e excitabilidade cerebral." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/19604.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-07-13T13:30:25Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Dissertação_JanatarStellaVaconcelosdeMelo_2016.pdf: 1719619 bytes, checksum: 6315f0db6eb0f7ba21328cc670638617 (MD5)<br>Made available in DSpace on 2017-07-13T13:30:25Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Dissertação_JanatarStellaVaconcelosdeMelo_2016.pdf: 1719619 bytes, checksum: 6315f0db6eb0f7ba21328cc670638617 (MD5) Previous issue date: 2016-03-03<br>CAPES<br>As fases iniciais da vida representam um período crítico no desenvolvimento do sistema nervoso. O objetivo desse estudo foi avaliar efeitos da associação entre exercício físico em esteira e suplementação com óleo de peixe em ratosno início da vida, sobre ansiedade, memória e excitabilidade cerebral. Ratos Wistar foram divididos em: Óleo de Peixe ou Veículo e subdivididos em Exercitados ou Sedentários. O período de treinamento ocorreu do 15º ao 45º dias de vida. A partir dos 46 dias de vida, foi realizada avaliação dos efeitos dessa associação sobre peso corporal, murinometria, respostas comportamentais relacionadas à ansiedade, memória e eletrofisiologia cortical. Os resultados demonstram que não houve alteração nos dados murinométricos. No teste de labirinto em cruz elevado, os animais exercitados apresentaram comportamento menos ansioso a julgar pelo maior número de entradas nos braços abertos. Além disso, animais suplementados e/ou exercitados apresentaram memória preservada para reconhecimento da identidade do objeto. Por outro lado, a análise intragrupo demonstrou prejuízo dependente do tratamento, quando os animais foram submetidos ao teste de reconhecimento quanto à localização do objeto. Com relação à análise intergrupo, a suplementação e o exercício aumentaram o índice de discriminação para o objeto estacionário. Sobre a eletrofisiologia cerebral, houve potencialização da suplementação sobre o exercício na redução da velocidade de propagação da depressão alastrante cortical. Neste contexto, os resultados indicam que é necessária cautela no uso da associação dessas estratégias referentes à modulação comportamental ou neural em períodos críticos de desenvolvimento do sistema nervoso.<br>The early stages of life represent a critical period in the development of the nervous system. The aim of this study was to evaluate how the association between treadmill exercise and supplementation with fish oil in rats during lactation affect anxiety, memory and brain excitability. Wistar rats performed two experimental groups as Fish Oil or vehicle, and then divided into exercised or sedentary. The training period was from the 15th to 45th days of life. From the 46 days of life, the effects of this combination on body weight, murimetric parameters, behavioral assessment, and cortical electrophysiology were evaluated. The results demonstrate that there was no change in murinometric data. In the elevated plus maze, exercised animals were less anxious as judged by the largest number of entries into the open arms as compared to the respective controls. Furthermore, supplemented and / or trained animals showed preserved memory to recognize the identity of the object. On the other hand, the intra-group analysis showed treatment-dependent impairment when the animals were subjected to the recognition test on the object location. The inter-group analysis supplementation and exercise increased the discrimination index for the stationary object. In addition, supplementation with fish oil enhanced the effect of exercise on brain excitability by reducing the velocity of propagation of cortical spreading depression. Therefore, the present data indicate that caution is required in use of the association of these strategies concerning behavioral or neural modulation.
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Maddalena, Andrea [Verfasser], Sebastian [Akademischer Betreuer] Kügler, André [Akademischer Betreuer] Fisher, and Nils [Akademischer Betreuer] Brose. "A mifepristone-regulated adeno-associated viral vector system for regulated neurotrophic factor expression in the central nervous system / Andrea Maddalena. Gutachter: André Fisher ; Nils Brose. Betreuer: Sebastian Kügler." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://d-nb.info/1044414928/34.

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Su, Minhui [Verfasser], Mikael [Akademischer Betreuer] Simons, Blanche [Gutachter] Schwappach, et al. "Microglia activation and regulation of remyelination in the central nervous system / Minhui Su ; Gutachter: Blanche Schwappach, Steven Johnsen, André Fisher, Hannelore Ehrenreich, Tiago Fleming Outeiro ; Betreuer: Mikael Simons." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://d-nb.info/1200634209/34.

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Sonne, James H. "EFFECTS OF INTRANASALLY ADMINISTERED DNSP-11 ON THE CENTRAL DOPAMINE SYSTEM OF NORMAL AND PARKINSONIAN FISCHER 344 RATS." UKnowledge, 2013. http://uknowledge.uky.edu/neurobio_etds/5.

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Due to the blood-brain barrier, delivery of many drugs to the brain has required intracranial surgery which is prone to complication. Here we show that Dopamine Neuron Stimulating Peptide 11 (DNSP-11), following non-invasive intranasal administration, protects dopaminergic neurons from a lesion model of Parkinson’s disease in the rat. A significant and dose-dependent increase in an index of dopamine turnover (the ratio of DOPAC to dopamine) was observed in the striatum of normal young adult Fischer 344 rats by whole-tissue neurochemistry compared to vehicle administered controls. Among animals challenged with a moderate, unilateral 6-hydroxy-dopamine (6-OHDA) lesion of the substantia nigra, those treated repeatedly with intranasally administered DNSP-11 exhibited greater numbers of tyrosine hydroxylase (TH) positive dopaminergic neuronal cell bodies in the substantia nigra and greater TH+ fiber density in the striatum when compared to animals treated intranasally with vehicle only or a scrambled version of the DNSP-11 sequence. Lesioned animals that received intranasal DNSP-11 treatment did not exhibit abnormal, apomorphine-induced rotation behavior, contrasted with animals that received only vehicle or scrambled peptide that did exhibit significantly greater rotation behavior. In addition, the endogenous expression of DNSP-11 from the pro-region of GDNF was investigated by immunohistochemistry with a custom, polyclonal antibody. Signal from the DNSP-11 antibody was found to be differentially localized from the mature GDNF protein both spatially and temporally. While DNSP-11-like immunoreactivity extensively colocalizes with GDNF immunoreactivity at post-natal day 10, the day of maximal GDNF expression, DNSP-11-like signal was found to be present in the 3 month old rat brain with signal in the substantia nigra, ventral thalamic nucleus, dentate gyrus of the hippocampus, with the strongest signal observed in the locus ceruleus where GDNF is not expressed. Results from immunoprecipitation of brain homogenate were not consistent with the synthetic, amidated 11 amino-acid rat DNSP-11 sequence. However, binding patterns in the literature of NPY, the only homologous sequence present in the CNS, do not recapitulate the immunoreactive patterns observed for the DNSP-11 signal. This study provides evidence for a potential easy-to-administer intranasal therapeutic using the DNSP-11 peptide for protection from a 6-OHDA lesion rat model of Parkinson’s disease.
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Fischer, Thomas Verfasser], Wolfgang [Akademischer Betreuer] Wurst, de Angelis Martin [Akademischer Betreuer] [Hrabé, and Kay H. [Akademischer Betreuer] Schneitz. "Fibroblast growth factor and Wnt signaling in the development of the vertebrate central nervous system / Thomas Fischer. Gutachter: Martin Hrabé de Angelis ; Kay H. Schneitz. Betreuer: Wolfgang Wurst." München : Universitätsbibliothek der TU München, 2006. http://d-nb.info/1058866435/34.

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Craig, Robin Ann. "Real-time PCR analysis of age-dependent alterations in the RVLM neurotransmitter gene expression profile of F344 rats." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/479.

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Fischer, Linda [Verfasser], Felix Christian [Akademischer Betreuer] Felmy, Anaclet [Akademischer Betreuer] Ngezahayo, and Evgeni [Akademischer Betreuer] Ponimaskin. "Input-Output Functions of Sensory Neurons in the Central Nervous System with Focus on the Physiological Basis underlying Information Transfer in the VNLL / Linda Fischer ; Felix Felmy, Anaclet Ngezahayo, Evgeni Ponimaskin." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2020. http://d-nb.info/1224232968/34.

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Schuster, Kevin. "Se trouver, se perdre, se retrouver : innervation des organes sensoriels de la ligne latérale." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20008.

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Dans cette thèse, je me suis intéressé aux mécanismes qui permettent aux axones des neurones sensoriels de trouver leurs organes cibles à une grande distance. Dans le cas du système de la ligne latérale postérieure (LLP) du poisson-zèbre, des organes sensoriels sont déposés au cours de la migration d'un primordium. Des neurites sensoriels accompagnent le primordium au cours de cette migration et sont ainsi guidés vers leurs organes cibles. J'ai démontré que l'inactivation du signal «Glial cell line-Derived Neurotrophic Factor » (GDNF) rend les axones sensoriels incapables de suivre le primordium. GDNF est également utilisé comme signal de guidage lors de la régénération axonale après section du nerf et donc permet aux axones de retrouver leur cible. Ensuite j'ai démontré que le signal « Brain Derived Neurotrophic Factor » (BDNF) exerce un autre rôle dans le développement de la LLP puisqu'il est essentiel pour l'ancrage et la connexion des axones à leurs organes cibles. Dans une deuxième partie, nous avons montré que le développement de la LLP embryonnaire du Thon Rouge est fortement similaire à celui du Poisson-Zèbre, pourtant relativement basal. Cette similitude comprend le fait que les axones de la LLP suivent le primordium<br>In this thesis, I address the question of how peripheral axons of sensory neurons find their distant target organs. In the case of the posterior lateral line (PLL) system of zebrafish, sensory organs are deposited by a migrating primordium and sensory neurites accompany this primordium during its migration. In this way, the neurites are guided to their prospective target organs. I show that the inactivation of «Glial cell line Derived Neurotrophic Factor » (GDNF) signaling leads to the inability of sensory axons to track the migrating primordium. GDNF signaling is also used as a guidance cue during axonal regeneration following nerve cut. I conclude that GDNF is a major determinant of directed neuritic growth and of target finding in this system, and propose that GDNF acts by promoting local neurite outgrowth. Further, I demonstrate that «Brain Derived Neurotrophic Factor » (BDNF) signaling exerts another role in PLL development as it is essent ial to anchor and properly connect axons to their targets organs.In another project, we could demonstrate that the development of the embryonic PLL of the atlantic blue-fin tuna shows striking similarities to that of the relatively basal zebrafish, including that PLL axons follow the migrating primordium
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Marx, Roswitha Maria. "The Development of the nervous system of aurelia aurita (Scyphozoa, Coelenterata)." Thesis, 1997. http://hdl.handle.net/1828/8309.

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Aurelia aurita passes through several life cycle stages during its development. Sexual reproduction occurs in the adult jellyfish and results in the free-swimming planula, which develops into the sessile scyphistoma (polyp). The polyp, which reproduces asexually by budding, develops into a strobila which, also asexually, produces free-swimming ephyrae (the initial medusoid stage) through transverse fission. In the planula, the nervous system consists of ectodermal sensory cells and neurons and their fibres. Anti-FMRFamide antibodies label both sensory and neuronal cells in the anterior region of the planula; the neuronal processes are mostly arranged longitudinally along the anterior/posterior axis, and a few fibres run transversely. Labelled neurons do not appear to make contact with one another in the early, i.e. just released, planula and do not have the appearance of a nerve net until the late planula, i.e. just prior to metamorphosis. Metamorphosis of the planula can be induced by exogenously applied thyroxine (10−⁷M) and iodine (10−⁷M) and, to a lesser degree, by retinoic acid (10−⁷M). MgCl₂ (0.13M) and FMRFamide (10−⁷M), on the other hand, inhibit or reduce, respectively, the induction of metamorphosis. Less than 50% of planulae cut into anterior and posterior halves are undergoing metamorphosis after 10 days, and thyroxine fails to enhance the rate of metamorphosis in those larvae. In the scyphistoma, the nervous system consists of sensory cells and neurons in the ectoderm and the endoderm. The somata of cells labelled with anti-FMRFamide are located mostly in the oral disc and the tentacles, where they, together with their processes, have the appearance of a nerve net. Nerve fibres are also found on the four muscle bands that extend the length of the scyphistoma from the pedal to the oral disc. In the developing and adult jellyfish, conventional techniques such as methylene blue staining distinguish between a diffuse nerve net and a giant fibre system. Neuronal subsets are identified by immunohistochemical techniques such as labelling with anti-FMRFamide and a monoclonal antibody generated with ephyral tissue as the immunogen. Anti-FMRFamide labels a subset of neurons of the diffuse nerve net, whereas the monoclonal antibody labels a separate subset of neurons, some of which belong to the giant fibre system, while others do not, and none of which co-label with the anti-FMRFamide antibodies. In contrast to the subset of FMRFamide-positive neurons, which has the appearance of a nerve net in all jellyfish stages, the number of neurons labelled with the monoclonal antibody increases during the development of the jellyfish from a few scattered neurons in the ephyra to an interconnected population of neurons forming a nerve net in the adult. Whereas elements of the diffuse nerve net and the FMRFamide label are present in all life cycle stages, the giant fibre system, which innervates the swimming muscles, and the monoclonal antibody label only occur in the jellyfish stages. Rhodamine B, which has been used as an indicator of neuronal activity in other phyla, was found to also stain neurons in the jellyfish stages of Aurelia. The number of stained neurons was significantly higher in ephyrae treated with FMRFamide or Artemia when compared to ephyrae treated with MgCl₂ and FM[D-R]Famide. The data indicate that the nervous system of Aurelia aurita is more complex than previously assumed, in that a separate nerve net or subset of neurons is present in the jellyfish whose characteristics are neither solely that of the giant fibre system nor that of the diffuse nerve net. No indications were found for neuronal cell death during the development of the nervous system.<br>Graduate
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Books on the topic "Nervous system – Fishes"

1

Gyorui no nyūro saiensu: Gyorui shinkei kagaku kenkyū no saizensen. Kōseisha Kōseikaku, 2002.

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Papoutsoglou, Sōphronios Eustr. Textbook of fish endocrinology. Nova Science, 2011.

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Santer, Robert M. Morphology and innervation of the fish heart. Springer-VErlag, 1985.

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Morphology and innervation of the fish heart. Springer-Verlag, 1985.

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Büchner, Georg. Naturwissenschaftliche Schriften. Wissenschaftliche Buchgesellschaft, 2008.

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service), ScienceDirect (Online, ed. Fish neuroendocrinology. Academic Press, 2009.

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The cholinergic neuron and its target: The electromotor innervation of the electric ray "Torpedo" as a model. Birkhäuser, 1992.

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Parker, James N., and Philip M. Parker. The official patient's sourcebook on Miller Fisher syndrome. Edited by Icon Group International Inc. Icon Health Publications, 2002.

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Burton, Derek, and Margaret Burton. Integration and control: the nervous system. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198785552.003.0011.

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The complexity of fish behaviour and information processing indicates high levels of neural, anatomical and functional organization. Neural cells are conducting neurons and neuroglia with putative support and physiological roles. Neuronal conduction, synaptic transmission, reflexes and neuropils are factors in integrative activity and information processing. Fish nervous systems are organized into central (brain and spinal cord) and peripheral (including autonomic) components. Interestingly the structure and function of the fish optic tectum have been considered comparable to those of the tetrapod cerebral cortex. Also of interest are the bilaterally paired large Mauthner fibres in the teleost central nervous system, which mediate startle responses. The autonomic nervous system in fish occupies a pivotal position amongst vertebrates, including uncertainty about the existence of a posterior parasympathetic component. The trend is to regard it in terms of spinal autonomic (sympathetic) cranial autonomic (parasympathetic) and enteric systems. Accounts of the autonomic control of individual effector systems are included.
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Do Fish Feel Pain. Oxford University Press, USA, 2010.

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Book chapters on the topic "Nervous system – Fishes"

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Bone, Q., N. B. Marshall, and J. H. S. Blaxter. "The nervous system." In Biology of Fishes. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2664-3_11.

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Smeets, W. J. A. J. "Cartilaginous Fishes." In The Central Nervous System of Vertebrates. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-18262-4_12.

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Nieuwenhuys, R. "Brachiopterygian Fishes." In The Central Nervous System of Vertebrates. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-18262-4_13.

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Nieuwenhuys, R. "Chondrostean Fishes." In The Central Nervous System of Vertebrates. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-18262-4_14.

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Roberts, B. L. "The Central Nervous System." In Physiology of Elasmobranch Fishes. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73336-9_2.

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Nilsson, S., and S. Holmgren. "The Autonomic Nervous System." In Physiology of Elasmobranch Fishes. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73336-9_5.

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Waehneldt, Thomas V., Joachim Malotka, Gunnar Jeserich, and Jean-Marie Matthieu. "Central nervous system myelin proteins of the coelacanth Latimeria chalumnae: phylogenetic implications." In Developments in environmental biology of fishes. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3194-0_8.

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Mokhtar, Doaa M. "Nervous System." In Fish Histology, 2nd ed. Apple Academic Press, 2021. http://dx.doi.org/10.1201/9781003097419-15.

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Fortin, David. "Fischer/F98 Glioma Model: Methodology." In Tumors of the Central Nervous System, Volume 2. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0618-7_34.

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"The Nervous System." In Biology of Fishes. Taylor & Francis, 2008. http://dx.doi.org/10.1201/9781134186310-15.

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