2018
DOI: 10.1016/j.neuropharm.2018.08.008
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Ouabain increases neuronal branching in hippocampus and improves spatial memory

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Cited by 24 publications
(29 citation statements)
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“…The application of low doses of ouabain was previously shown to improve recovery following brain injury [19]. Moreover, low doses of ouabain facilitated dendritic branching in hippocampal neurons [20]. These results, together with the data showing the ouabain-induced increase in the number of DRG neurons labeled with AF488 and AF647, which were injected into initially denervated areas ( Figure 6, here), support the notion that the low doses of ouabain used here promoted sprouting of the neighboring neurons into denervated areas.…”
Section: Discussionmentioning
confidence: 98%
See 1 more Smart Citation
“…The application of low doses of ouabain was previously shown to improve recovery following brain injury [19]. Moreover, low doses of ouabain facilitated dendritic branching in hippocampal neurons [20]. These results, together with the data showing the ouabain-induced increase in the number of DRG neurons labeled with AF488 and AF647, which were injected into initially denervated areas ( Figure 6, here), support the notion that the low doses of ouabain used here promoted sprouting of the neighboring neurons into denervated areas.…”
Section: Discussionmentioning
confidence: 98%
“…If the decrease in innervation indeed contributes to neuropathic pain, the enhancement of innervation should facilitate the alleviation of neuropathic pain symptoms. We used ouabain in order to examine this hypothesis, which, when applied in low doses, is known to facilitate neuronal proliferation after injury [19] and promote neurite growth [20]. Indeed, in animals that were treated with a low dose of ouabain (3.6 µg/kg, i.p., see Materials and Methods), daily after SNI, the number of cells innervating the MM and FM areas was significantly larger than in animals that were treated with saline (p < 0.01, n = 6 rats, Student t-test, Figure 6A, left).…”
Section: Ouabain Promotes Reinnervation and Diminishes Neuropathic Painmentioning
confidence: 99%
“…Os resultados desses estudos confirmam a existência de um novo tipo de sinalização para a OUA no SNC (KAWAMOTO et al, 2012). Ademais, foi demonstrado em modelo, in vivo, que a injeção intra-hipocampal de OUA 10 nM promoveu um aumento na ramificação dendrítica, bem como melhorou a memória espacial e prejudicou a extinção da memória operacional e estes efeitos foram decorrentes da ativação das vias de sinalização, importantes na regulação de sinapses, CREB-BDNF, NF-κB, GSK-3β e Wnt/β-Catenina (ORELLANA et al, 2018).…”
Section: Ouabaínaunclassified
“…As duas vias levam à ativação do NF-κB. Como consequência há o aumento dos níveis de mRNA de IL-1β, TNF, Bcl-2 e BDNF (38,39,41,42,45).…”
Section: Palavrasunclassified
“…Foi demonstrado que a ativação da via do BDNF e NF-κB pela ouabaína contribui para mudanças no microambiente hipocampal, o que resulta no aumento de arborização dendrítica (53). Estas mudanças ocasionam melhoras na memória espacial e inibem a extinção da memória de longo prazo, mostrando a importância da NKA e da ouabaína na modulação de vias de sinalização que acarretam em alterações funcionais (45). Além disso, foi descrito que a ouabaína e a NKA têm um papel essencial na inflamação através da inibição de prostaglandina E2, bradicinina e degranulação de mastócitos (54).…”
Section: O Papel Dual Da Ouabaína E Seus Efeitos Na Inflamaçãounclassified