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Changes in hippocampal astrocyte morphology of Ruddy turnstone (Arenaria interpres) during the wintering period at the mangroves of Amazon

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2020
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Changes in hippocampal astrocyte morphology of Ruddy turnstone (Arenaria interpres) during the wintering period at the mangroves of Amazon.pdf (538.1xmlui.dri2xhtml.METS-1.0.size-kilobytes)
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http://patua.iec.gov.br//handle/iec/4105
xmlui.dri2xhtml.METS-1.0.item-author
Costa, Emanuel Ramos da
Henrique, Ediely Pereira
Silva, João Batista da
Pereira, Patrick Douglas Corrêa
Abreu, Cintya Castro de
Fernandes, Taiany Nogueira
Magalhães, Nara Gyzely de Morais
Silva, Anderson de Jesus Falcão da
Guerreiro, Luma Cristina Ferreira
Diniz, Cristovam Guerreiro
Diniz, Cristovam Wanderley Picanço
Diniz, Daniel Guerreiro
xmlui.dri2xhtml.METS-1.0.item-abstract
Astrocytes are essential for lipid neuronal metabolism in long-distance uninterrupted migratory flights, when glucose is not available as the main source of energy. We previously demonstrated in Calidris pusilla that after uninterrupted 5 days transatlantic flight, astrocytes shrink and reduce its number in the hippocampal formation. Here we shifted our attention to the wintering period and tested the hypothesis that hippocampal astrocyte morphology of A interpres will change as the wintering period progresses towards the premigration window. To that end we used Arenaria interpres, which also crosses the Atlantic Ocean and reaches the mangroves of the Amazon River estuary for wintering. Birds were captured in September/October (closer to the arrival in the coast of Bragança, Para, Brazil for wintering) and in April/May (closer to the departure towards the breeding sites) and had their brains processed for selective GFAP-astrocyte immunolabeling. Three-dimensional reconstructions of the immunostained astrocytes were performed and morphological classification was done based on hierarchical cluster and discriminant analysis of multimodal morphometric features. We found two morphological phenotypes of astrocytes in the newcomers which differentially increased its morphological complexities as wintering period progresses towards the pre-migration window. Taken together, our findings demonstrate that the long-distance non-stop flight and wintering period differentially affected the two astrocytes morphotypes, suggesting distinct physiological roles for these cells. We suggest that morphological changes during the wintering period, may be part of the adaptive plasticity of the local hippocampal circuits of A. interpres in preparation for the long journey back to their breeding sites in the north hemisphere.
xmlui.dri2xhtml.METS-1.0.item-citation
COSTA, Emanuel Ramos da et al. Changes in hippocampal astrocyte morphology of Ruddy turnstone (Arenaria interpres) during the wintering period at the mangroves of Amazon. Journal of Chemical Neuroanatomy, v. 108, n.xx, 101805, Oct. 2020.
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Charadriiformes / anatomia & histologia
Aves
Sistema Nervoso / análise
Astrócitos / citologia
Hipocampo / citologia
Voo Animal
Ruddy turnstone (Arenaria interpres)
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  • SAHEP - Artigos Científicos

Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
Suporte ao site - Wesin Alves
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
Suporte ao site - Wesin Alves