dc.creator | Dalmasso, Carolina | |
dc.creator | Antunes Rodrigues, José | |
dc.creator | Vivas, Laura Marta | |
dc.creator | De Luca, Laurival A. | |
dc.date.accessioned | 2018-06-27T20:57:12Z | |
dc.date.accessioned | 2018-11-06T14:05:44Z | |
dc.date.available | 2018-06-27T20:57:12Z | |
dc.date.available | 2018-11-06T14:05:44Z | |
dc.date.created | 2018-06-27T20:57:12Z | |
dc.date.issued | 2015-08 | |
dc.identifier | Dalmasso, Carolina; Antunes Rodrigues, José; Vivas, Laura Marta; De Luca, Laurival A.; Mapping brain Fos immunoreactivity in response to water deprivation and partial rehydration: Influence of sodium intake; Pergamon-Elsevier Science Ltd; Physiology And Behavior; 151; 8-2015; 494-501 | |
dc.identifier | 0031-9384 | |
dc.identifier | http://hdl.handle.net/11336/50298 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1882834 | |
dc.description.abstract | Water deprivation (WD) followed by water intake to satiety, produces satiation of thirst and partial rehydration (PR). Thus, WD-PR is a natural method to differentiate thirst from sodium appetite. WD-PR also produces Fos immunoreactivity (Fos-ir) in interconnected areas of a brain circuit postulated to subserve sodium appetite. In the present work, we evaluated the effect of sodium intake on Fos-ir produced by WD-PR in brain areas operationally defined according to the literature as either facilitatory or inhibitory to sodium intake. Isotonic NaCl was available for ingestion in a sodium appetite test performed immediately after a single episode of WD-PR. Sodium intake decreased Fos-ir in facilitatory areas such as the lamina terminalis (particularly subfornical organ and median preoptic nucleus), central amygdala and hypothalamic parvocellular paraventricular nucleus in the forebrain. Sodium intake also decreased Fos-ir in inhibitory areas such as the area postrema, lateral parabrachial nucleus and nucleus of the solitary tract in the hindbrain. In contrast, sodium intake further increased Fos-ir that was activated by water deprivation in the dorsal raphe nucleus, another inhibitory area localized in the hindbrain. WD-PR increased Fos-ir in the core and shell of the nucleus accumbens. Sodium intake reduced Fos-ir in both parts of the accumbens. In summary, sodium intake following WD-PR reduced Fos-ir in most facilitatory and inhibitory areas, but increased Fos-ir in another inhibitory area. It also reduced Fos-ir in a reward area (accumbens). The results suggest a functional link between sodium intake and the activity of the hindbrain-forebrain circuitry subserving reward and sodium appetite in response to water deprivation. | |
dc.language | eng | |
dc.publisher | Pergamon-Elsevier Science Ltd | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.physbeh.2015.08.020 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | ANGIOTENSIN II | |
dc.subject | REWARD | |
dc.subject | SATIETY | |
dc.subject | SODIUM APPETITE | |
dc.subject | THIRST | |
dc.subject | WATER INTAKE | |
dc.title | Mapping brain Fos immunoreactivity in response to water deprivation and partial rehydration: Influence of sodium intake | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |