Cited by 71Neurogenesis and neuroplasticity mechanismsStress Responses and CortisolMemory and Neural Mechanisms

Social isolation disrupts hippocampal neurogenesis in young non-human primates

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Cinini, Simone M., Barnabe, Gabriela F., Galvão-Coelho, Nicole, de Medeiros, Magda A., Perez-Mendes, Patrícia, Sousa, Maria B. C., Covolan, Luciene, Mello, Luiz E.·2014·Frontiers in Neuroscience

Abstract

Social relationships are crucial for the development and maintenance of normal behavior in non-human primates. Animals that are raised in isolation develop abnormal patterns of behavior that persist even when they are later reunited with their parents. In rodents, social isolation is a stressful event and is associated with a decrease in hippocampal neurogenesis but considerably less is known about the effects of social isolation in non-human primates during the transition from adolescence to adulthood. To investigate how social isolation affects young marmosets, these were isolated from other members of the colony for 1 or 3 weeks and evaluated for alterations in their behavior and hippocampal cell proliferation. We found that anxiety-related behaviors like scent-marking and locomotor activity increased after social isolation when compared to baseline levels. In agreement, grooming-an indicative of attenuation of tension-was reduced among isolated marmosets. These results were consistent with increased cortisol levels after 1 and 3 weeks of isolation. After social isolation (1 or 3 weeks), reduced proliferation of neural cells in the subgranular zone of dentate granule cell layer was identified and a smaller proportion of BrdU-positive cells underwent neuronal fate (doublecortin labeling). Our data is consistent with the notion that social deprivation during the transition from adolescence to adulthood leads to stress and produces anxiety-like behaviors that in turn might affect neurogenesis and contribute to the deleterious consequences of prolonged stressful conditions.

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Crossref · 10.3389/fnins.2014.00045

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  • In adolescent non-human primates, deprivation of peer contact for 1-3 weeks results in anxiety-like behaviours and reduced cell proliferation and neurogenesis in hippocampus.

    “Although much scarcer, research on the effects of social deprivation in adolescent non-human primates has shown effects in line with the rodent research: deprivation of contact with peers for 1–3 weeks results in anxiety-like behaviours and a reduction in cell proliferation and neurogenesis in the hippocampus (a brain region involved in learning and memory).56”

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Authors
Cinini, S. M., Barnabe, G. F., Galvão-Coelho, N., de Medeiros, M. A., Perez-Mendes, P., Sousa, M. B. C., Covolan, L., & Mello, L. E.
Affiliations
  • Universidade Federal de São Paulo (BR)
  • Universidade Federal do Rio Grande do Norte (BR)
Corresponding author
Mello, Luiz E.
Venue
Frontiers in Neuroscience
Published
2014-03-27
Volume
8
Pages
45-45
ISSN
1662-453X (ISSN-L)
OpenAlex
W2101446581
Cited by
71
References
61
Citations by year
2026: 5 · 2025: 4 · 2024: 4 · 2023: 2 · 2022: 9 · 2021: 8 · 2020: 10 · 2019: 2 · 2018: 4 · 2017: 10 · 2016: 5 · 2015: 7 · 2014: 1
FWCI
2.67
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Americanae (AECID Library) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
social isolation, hippocampal neurogenesis, marmoset, adolescence to adulthood transition, anxiety-like behavior, scent marking, grooming, cortisol, stress, dentate gyrus subgranular zone, neural cell proliferation, doublecortin, BrdU labeling, social deprivation

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