Publicação
Age-related impact of social isolation in mice: young vs middle-aged
| dc.contributor.author | Magalhães, Daniela M | |
| dc.contributor.author | Mampay, Myrthe | |
| dc.contributor.author | Sebastião, Ana M | |
| dc.contributor.author | Sheridan, Graham K. | |
| dc.contributor.author | Valente, Cláudia A. | |
| dc.date.accessioned | 2025-06-12T14:00:38Z | |
| dc.date.available | 2025-06-12T14:00:38Z | |
| dc.date.issued | 2024 | |
| dc.description | Copyright © 2024 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) | pt_PT |
| dc.description.abstract | Social isolation is a chronic mild stressor and a significant risk factor for mental health disorders. Herein we explored the impact of social isolation on depression- and anxiety-like behaviours, as well as spatial memory impairments, in middle-aged male mice compared to post-weaning mice. We aimed to quantify and correlate social isolation-induced behaviour discrepancies with changes in hippocampal glial cell reactivity and pro-inflammatory cytokine levels. Post-weaning and middle-aged C57BL7/J6 male mice were socially isolated for a 3-week period and behavioural tests were performed on the last five days of isolation. We found that 3 weeks of social isolation led to depressive-like behaviour in the forced swim test, anxiety-like behaviour in the open field test, and spatial memory impairment in the Morris water maze paradigm in middle-aged male mice. These behavioural alterations were not observed in male mice after post-weaning social isolation, indicating resilience to isolation-mediated stress. Increased Iba-1 expression and NLRP3 priming were both observed in the hippocampus of socially isolated middle-aged mice, suggesting a role for microglia and NLRP3 pathway in the detrimental effects of social isolation on cognition and behaviour. Young socially isolated mice also demonstrated elevated NLRP3 priming compared to controls, but no differences in Iba-1 levels and no significant changes in behaviour. Ageing-induced microglia activation and enhancement of IL-1β, TNF-α and IL-6 proinflammatory cytokines, known signs of a chronic low-grade inflammatory state, were also detected. Altogether, data suggest that social isolation, in addition to inflammaging, contributes to stress-related cognitive impairment in middle-aged mice. | pt_PT |
| dc.description.sponsorship | The work received funding from the European Union's Horizon 2020 research and innovation programme [Grant agreement 952455] and Project [PTDC/MED-NEU/6954/2020] from Fundação para a Ciência e a Tecnologia (FCT), Portugal. D.M.M. was supported by a PhD scholarship from FCT [PD/BD/128405/2017]. G.K.S. is grateful for support from the Leverhulme Trust [RPG-2018-443], United Kingdom. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Neurochem Int. 2024 Mar:174:105678 | pt_PT |
| dc.identifier.doi | 10.1016/j.neuint.2024.105678 | pt_PT |
| dc.identifier.eissn | 1872-9754 | |
| dc.identifier.issn | 0197-0186 | |
| dc.identifier.uri | http://hdl.handle.net/10400.5/101535 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | PTDC/MED-NEU/6954/2020 | pt_PT |
| dc.relation | Epileptogenesis and Epilepsy Network: from genes, synapses and circuits to pave the way for novel drugs and strategies | |
| dc.relation.publisherversion | https://www.sciencedirect.com/journal/neurochemistry-international | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | pt_PT |
| dc.subject | Behaviour | pt_PT |
| dc.subject | Hippocampus | pt_PT |
| dc.subject | Inflammaging | pt_PT |
| dc.subject | Neuroinflammation | pt_PT |
| dc.subject | Social isolation | pt_PT |
| dc.title | Age-related impact of social isolation in mice: young vs middle-aged | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardNumber | 952455 | |
| oaire.awardNumber | PD/BD/128405/2017 | |
| oaire.awardTitle | Epileptogenesis and Epilepsy Network: from genes, synapses and circuits to pave the way for novel drugs and strategies | |
| oaire.awardURI | info:eu-repo/grantAgreement/EC/H2020/952455/EU | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//PD%2FBD%2F128405%2F2017/PT | |
| oaire.citation.title | Neurochemistry International | pt_PT |
| oaire.citation.volume | 174 | pt_PT |
| oaire.fundingStream | H2020 | |
| person.familyName | Melo Magalhães | |
| person.familyName | Sebastião | |
| person.familyName | Valente | |
| person.givenName | Daniela Cristina | |
| person.givenName | Ana M | |
| person.givenName | Cláudia | |
| person.identifier.ciencia-id | AC19-5A99-46A9 | |
| person.identifier.ciencia-id | F112-55E8-E37E | |
| person.identifier.ciencia-id | BD1B-6720-D51D | |
| person.identifier.orcid | 0000-0002-1662-2002 | |
| person.identifier.orcid | 0000-0001-9030-6115 | |
| person.identifier.orcid | 0000-0001-5405-3130 | |
| person.identifier.rid | A-3868-2013 | |
| person.identifier.scopus-author-id | 7004409879 | |
| person.identifier.scopus-author-id | 9842734300 | |
| project.funder.identifier | http://doi.org/10.13039/501100008530 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | European Commission | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | f5ea0376-9ad8-4f96-b2b8-87c0ea4ede76 | |
| relation.isAuthorOfPublication | 304abd7f-071b-4447-a8a3-4aa5f0547141 | |
| relation.isAuthorOfPublication | f8ed7487-bd16-460b-9e4f-ef0ca623b5ba | |
| relation.isAuthorOfPublication.latestForDiscovery | 304abd7f-071b-4447-a8a3-4aa5f0547141 | |
| relation.isProjectOfPublication | 71376ce5-3732-4d41-b053-3dad707d6191 | |
| relation.isProjectOfPublication | 23290798-7154-421e-a4f1-0183db14534e | |
| relation.isProjectOfPublication.latestForDiscovery | 71376ce5-3732-4d41-b053-3dad707d6191 |