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1.
Proc Natl Acad Sci U S A ; 121(6): e2306549121, 2024 Feb 06.
Artículo en Inglés | MEDLINE | ID: mdl-38300861

RESUMEN

Understanding and predicting the emergence and evolution of cultural tastes manifested in consumption patterns is of central interest to social scientists, analysts of culture, and purveyors of content. Prior research suggests that taste preferences relate to personality traits, values, shifts in mood, and immigration destination. Understanding everyday patterns of listening and the function music plays in life has remained elusive, however, despite speculation that musical nostalgia may compensate for local disruption. Using more than one hundred million streams of four million songs by tens of thousands of international listeners from a global music service, we show that breaches in personal routine are systematically associated with personal musical exploration. As people visited new cities and countries, their preferences diversified, converging toward their travel destinations. As people experienced the very different disruptions associated with COVID-19 lockdowns, their preferences diversified further. Personal explorations did not tend to veer toward the global listening average, but away from it, toward distinctive regional musical content. Exposure to novel music explored during periods of routine disruption showed a persistent influence on listeners' future consumption patterns. Across all of these settings, musical preference reflected rather than compensated for life's surprises, leaving a lasting legacy on tastes. We explore the relationship between these findings and global patterns of behavior and cultural consumption.


Asunto(s)
Música , Humanos , Afecto , Predicción
2.
J Pediatr Psychol ; 47(9): 981-990, 2022 09 15.
Artículo en Inglés | MEDLINE | ID: mdl-35730966

RESUMEN

OBJECTIVE: The coronavirus disease 2019 (COVID-19) pandemic has impacted everyone, but there are few data regarding how the pandemic has influenced the lives of children with gastrointestinal (GI) conditions. This cross-sectional study assessed pandemic-related social disruption (PRSD) in children with inflammatory bowel disease (IBD), celiac disease (CD), and irritable bowel syndrome (IBS), and the potential buffering effect of the parent-child relationship. METHODS: A survey completed between September and December 2020 asked 146 children (ages 8-17) diagnosed with IBD (n = 44), CD (n = 81), or IBS (n = 51) and 185 parents how the pandemic has contributed to social disruption (i.e., financial stability, COVID-19 exposure, school changes, GI needs, and isolation) and their social-emotional well-being. Structural equation modeling was used to examine the role of social disruption on well-being, and the moderating effect of the parent-child relationship. RESULTS: Increased social disruption predicted worse parent, ß = 0.24, p = .02, and child well-being, ß = 0.38, p < .01. The parent-child relationship moderated the relationship between parent and child well-being, ß = 0.21, p = .03. Strong parent-child relationships predicted a positive association between parent and child well-being, ß = 0.23, p = .003, whereas medium, ß = 0.09, p = .14, and poor, ß = -0.06, p = .52, relationships did not. CONCLUSIONS: PRSD negatively impacted the well-being of children with GI conditions, and the parent-child relationship moderated this relationship. These findings are relevant to pediatric psychologists treating the physical and mental health needs of children with GI conditions and their parents.


Asunto(s)
COVID-19 , Enfermedades Gastrointestinales , Enfermedades Inflamatorias del Intestino , Síndrome del Colon Irritable , Adolescente , COVID-19/epidemiología , Niño , Enfermedad Crónica , Estudios Transversales , Enfermedades Gastrointestinales/epidemiología , Humanos , Enfermedades Inflamatorias del Intestino/psicología , Síndrome del Colon Irritable/diagnóstico , Síndrome del Colon Irritable/epidemiología , Síndrome del Colon Irritable/psicología , Pandemias
3.
Int J Mol Sci ; 23(4)2022 Feb 11.
Artículo en Inglés | MEDLINE | ID: mdl-35216112

RESUMEN

Stressor exposure increases colonic inflammation. Because inflammation leads to anxiety-like behavior, we tested whether stressor exposure in mice recovering from dextran-sulfate-sodium (DSS)-induced colitis enhances anxiety-like behavior. Mice received 2% DSS for five consecutive days prior to being exposed to a social-disruption (SDR) stressor (or being left undisturbed). After stressor exposure, their behavior was tested and colitis was assessed via histopathology and via inflammatory-cytokine measurement in the serum and colon. Cytokine and chemokine mRNA levels in the colon, mesenteric lymph nodes (MLNs), hippocampus, and amygdala were measured with RT-PCR. SDR increased anxiety-like behaviors, which correlated with serum and hippocampal IL-17A. The stressor also reduced IL-1ß, CCL2, and iNOS in the colonic tissue, but increased iNOS, IFNγ, IL-17A, and TNFα in the MLNs. A network analysis indicated that reductions in colonic iNOS were related to elevated MLN iNOS and IFNγ. These inflammatory markers were related to serum and hippocampal IL-17A and associated with anxiety-like behavior. Our data suggest that iNOS may protect against extra-colonic inflammation, and when suppressed during stress it is associated with elevated MLN IFNγ, which may coordinate gut-to-brain inflammation. Our data point to hippocampal IL-17A as a key correlate of anxiety-like behavior.


Asunto(s)
Ansiedad/metabolismo , Colitis/metabolismo , Citocinas/metabolismo , Hipocampo/metabolismo , Inflamación/metabolismo , Animales , Ansiedad/patología , Colitis/patología , Colon/metabolismo , Colon/patología , Modelos Animales de Enfermedad , Hipocampo/patología , Inflamación/patología , Masculino , Ratones , Ratones Endogámicos C57BL
4.
J Struct Eng (N Y N Y) ; 144(5)2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-34083865

RESUMEN

Policymakers, community leaders, engineers, and researchers have gained interest in understanding tornado-resilient buildings, in part because of the number of deadly and destructive tornadoes over the last decade. In addition to direct losses, such as deaths and damages, tornadoes may also cause many indirect losses as a result of the highly coupled networks within communities. When networks are disrupted, this can cause population outmigration which, if significant and long-lasting enough, may exacerbate a community's indirect socioeconomic losses over time. In this study, a community was coarsely modeled with its physical-socio-economic attributes to study population outmigration as a community resilience metric. In this regard, recovery of affected physical networks (i.e., electric power network, water network, and buildings) in the wake of a tornado was investigated and linked to students, household residents, and employees as socioeconomic agents within the community. The probability of outmigration for each household was assessed based on the probability that these three agents in the household are affected over a prescribed time period from the occurrence of the hazard to the full restoration of the community. Finally, the potential population outmigration for the community was assessed by aggregating all the households in the community. The results of such an analysis can be used as a decision-making tool to prioritize hardening of existing infrastructure in a community or optimize master planning of new communities and demonstrates the importance of physical-socio-economic interactions in resilience studies.

5.
Brain Behav Immun ; 65: 140-149, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28457810

RESUMEN

Animal tumor models and human cancer studies have provided convergent evidence that chronic psychological stress plays a decisive role in modulating anti-tumor T cell immunity. However, whether chronic stress also affects anti-cancer vaccine strategies that rely on the induction of functional tumor-specific TCD8+ cells has not been investigated yet. In this study we provide direct evidence that chronic stress suppresses the therapeutic efficacy of a biodegradable poly(d,l-lactide-co-glycolide) microsphere (PLGA-MS) based cancer vaccine in a murine melanoma model. Exposure of mice to social disruption stress (SDR), a well-established model mimicking psychological chronic stress in humans, significantly impaired tumor protection in response to cancer vaccination under both prophylactic and therapeutic conditions. Vaccine failure in stressed mice correlated with significantly reduced generation of interferon-γ (IFN-γ)-producing TCD8+ effectors and CTL-mediated killing. Phenotypic analysis of dendritic cells (DCs) revealed that both migratory and lymphoid-resident DCs failed to undergo full maturation upon antigen uptake. Notably, decreased DC maturation was associated with a significant impairment of peripheral DCs to migrate to draining LNs and to prime subsequent TCD8+ responses in vivo. In conclusion, chronic stress represents an important factor mediating immunosuppression in cancer-vaccinated hosts by impairing DC functions and subsequent TCD8+ priming. Potentially, the mechanistic insights gained in this study open new avenues in utilizing the full potential of anti-cancer vaccination strategies.


Asunto(s)
Linfocitos T CD8-positivos/inmunología , Estrés Psicológico/inmunología , Estrés Psicológico/fisiopatología , Animales , Linfocitos T CD8-positivos/fisiología , Vacunas contra el Cáncer/inmunología , Enfermedad Crónica , Células Dendríticas/inmunología , Modelos Animales de Enfermedad , Inmunidad Celular/fisiología , Inmunoterapia/métodos , Interferón gamma , Masculino , Melanoma/inmunología , Melanoma/fisiopatología , Ratones , Ratones Endogámicos C57BL , Linfocitos T Citotóxicos/inmunología
6.
Brain Behav Immun ; 60: 44-50, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27633986

RESUMEN

Exposure to a prolonged restraint stressor disrupts the colonic microbiota community composition, and is associated with an elevated inflammatory response to colonic pathogen challenge. Since the stability of the microbiota has been implicated in the development and modulation of mucosal immune responses, we hypothesized that the disruptive effect of the stressor upon the microbiota composition directly contributed to the stressor-induced exacerbation of pathogen-induced colitis. In order to establish a causative role for stressor-induced changes in the microbiota, conventional mice were exposed to prolonged restraint to change the microbiota. Germfree mice were then colonized by microbiota from either stressor-exposed or non-stressed control mice. One day after colonization, mice were infected with the colonic pathogen, Citrobacter rodentium. At six days post-infection, mice that received microbiota from stressor-exposed animals had significant increases in colonic pathology and pro-inflammatory cytokine (e.g. IL-1ß) and chemokine (e.g. CCL2) levels after C. rodentium infection in comparison with mice that received microbiota from non-stressed mice. 16S rRNA gene sequencing revealed that microbial communities from stressed mice did not have any detectable Bifidobacterium present, a stark contrast with the microbial communities from non-stressed mice, suggesting that stressor-induced alterations in commensal, immunomodulatory Bifidobacterium levels may predispose to an increased inflammatory response to pathogen challenge. This study demonstrates that the commensal microbiota directly contribute to excessive inflammatory responses to C. rodentium during stressor exposure, and may help to explain why gastrointestinal disorders are worsened during stressful experiences.


Asunto(s)
Citrobacter rodentium/inmunología , Mucosa Intestinal/inmunología , Microbiota/inmunología , Estrés Fisiológico/inmunología , Animales , Colon/inmunología , Colon/patología , Susceptibilidad a Enfermedades/inmunología , Inmunidad Mucosa/inmunología , Masculino , Ratones , Simbiosis/inmunología
7.
Conserv Biol ; 30(5): 1019-26, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-26801000

RESUMEN

Poaching has devastated forest elephant populations (Loxodonta cyclotis), and their habitat is dramatically changing. The long-term effects of poaching and other anthropogenic threats have been well studied in savannah elephants (Loxodonta africana), but the impacts of these changes for Central Africa's forest elephants have not been discussed. We examined potential repercussions of these threats and the related consequences for forest elephants in Central Africa by summarizing the lessons learned from savannah elephants and small forest elephant populations in West Africa. Forest elephant social organization is less known than the social organization of savannah elephants, but the close evolutionary history of these species suggests that they will respond to anthropogenic threats in broadly similar ways. The loss of older, experienced individuals in an elephant population disrupts ecological, social, and population parameters. Severe reduction of elephant abundance within Central Africa's forests can alter plant communities and ecosystem functions. Poaching, habitat alterations, and human population increase are probably compressing forest elephants into protected areas and increasing human-elephant conflict, which negatively affects their conservation. We encourage conservationists to look beyond documenting forest elephant population decline and address the causes of these declines when developing conversation strategies. We suggest assessing the effectiveness of the existing protected-area networks for landscape connectivity in light of current industrial and infrastructure development. Longitudinal assessments of the effects of landscape changes on forest elephant sociality and behavior are also needed. Finally, lessons learned from West African elephant population loss and habitat fragmentation should be used to inform strategies for land-use planning and managing human-elephant interactions.


Asunto(s)
Conservación de los Recursos Naturales , Elefantes , Bosques , África Occidental , Animales , Ecosistema , Pradera , Humanos
8.
Brain Behav Immun ; 40: 110-20, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24632225

RESUMEN

Previous research has shown that neonatal handling has prolonged protective effects associated with stress resilience and aging, yet little is known about its effect on stress-induced modulation of infectious disease. We have previously demonstrated that social disruption stress exacerbates the acute and chronic phases of the disease when applied prior to Theiler's virus infection (PRE-SDR) whereas it attenuates disease severity when applied concurrently with infection (CON-SDR). Here, we asked whether neonatal handling would protect adult mice from the detrimental effects of PRE-SDR and attenuate the protective effects of CON-SDR on Theiler's virus infection. As expected, handling alone decreased IL-6 and corticosterone levels, protected the non-stressed adult mice from motor impairment throughout infection and reduced antibodies to myelin components (PLP, MBP) during the autoimmune phase of disease. In contrast, neonatal handling X PRE/CON-SDR elevated IL-6 and reduced corticosterone as well as increased motor impairment during the acute phase of the infection. Neonatal handling X PRE/CON-SDR continued to exacerbate motor impairment during the chronic phase, whereas only neonatal handling X PRE-SDR increased in antibodies to PLP, MOG, MBP and TMEV. Together, these results imply that while handling reduced the severity of later Theiler's virus infection in non-stressed mice, brief handling may not be protective when paired with later social stress.


Asunto(s)
Infecciones por Cardiovirus/inmunología , Manejo Psicológico , Conducta Social , Estrés Psicológico/inmunología , Theilovirus/inmunología , Enfermedad Aguda , Factores de Edad , Animales , Animales Recién Nacidos , Enfermedad Crónica , Interleucina-6/inmunología , Masculino , Ratones , Ratones Endogámicos BALB C , Actividad Motora/inmunología , Proteínas de la Mielina/inmunología
9.
Eur J Soc Theory ; 27(1): 78-96, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38343560

RESUMEN

Polanyi's (1957 [1944]) The Great Transformation stands as a towering analysis of the industrial revolution and a powerful social warning against social and natural damage driven by the pursuit of maximal economic value. Polanyi envisioned that the 'discovery of society', due to its radical neglect during the industrial revolution, led to this new social knowledge resulting in the end of laissez-faire and the self-regulating market. Yet, the most recent phase of the industrial revolution, the digital phase, suggests that many of the same failures to manage industrial revolutions are occurring again. In particular, looking at the emerging digital economy through the prism of Polanyi's social theory, this article argues that the changes driven by the digital economy, specifically in terms of the reshaping of attention and sociality and the increasing potential for 'normal catastrophes', suggests that Polanyi's lesson of the destructive power of the self-regulating market is again being neglected.

10.
Ecol Evol ; 13(5): e10079, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37187967

RESUMEN

The disruption of animals' symbiotic bacterial communities (their microbiota) has been associated with myriad factors including changes to the diet, hormone levels, and various stressors. The maintenance of healthy bacterial communities may be especially challenging for social species as their microbiotas are also affected by group membership, social relationships, microbial transfer between individuals, and social stressors such as increased competition and rank maintenance. We investigated the effects of increased social instability, as determined by the number of group changes made by females, on the microbiota in free-living, feral horses (Equus caballus) on Shackleford Banks, a barrier island off the North Carolina coast. Females leaving their groups to join new ones had fecal microbial communities that were similarly diverse but compositionally different than those of females that did not change groups. Changing groups was also associated with the increased abundance of a several bacterial genera and families. These changes may be significant as horses are heavily dependent upon their microbial communities for nutrient absorption. Though we cannot identify the particular mechanism(s) driving these changes, to the best of our knowledge, ours is the first study to demonstrate an association between acute social perturbations and the microbiota in a free-ranging mammal.

11.
Animals (Basel) ; 13(3)2023 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-36766373

RESUMEN

African elephants (Loxodonta africana) exhibit a long developmental period during which they acquire complex social and ecological knowledge through social networks. Central to this is that matriarchs and older individuals play an important role as repositories of information gained through experience. Anthropogenic interventions-including poaching, culling, translocation, and hunting-can disrupt elephants' social networks, with implications for individual fitness and potential long-term population viability. Here, we draw on a unique long-running, individual-based dataset to examine the impacts of translocation on a population of elephants in South Africa, taking into consideration demographic rates, social dynamics, and ecological decision-making. Specifically, we compared two translocated groups: a group of unrelated culling Orphans and a family herd. We found that the Orphan group experienced accelerated reproductive rates when compared with the family herd. The Orphan group also fissioned more frequently and for longer periods of time, suggesting lower cohesiveness, and were less decisive in their large-scale movement decisions. These results add to the growing body of literature on the downstream impacts of social disruption for elephants. Whilst the translocation of culling Orphans is no longer practised in South Africa, we encourage careful consideration of any elephant translocation and the resulting social disruption.

12.
Behav Ther ; 53(5): 995-1008, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35987554

RESUMEN

Women with breast cancer experience social disruption during and after treatment. Brief cognitive-behavioral (CBT) and relaxation (RT) interventions may improve social disruption by increasing positive affect. Using the Broaden-and-Build Theory as a framework, this study examined whether short-term CBT- and RT-related increases in positive affect mediate long-term reductions in social disruption in women with breast cancer undergoing treatment (N = 183). This secondary analysis used latent change score and growth models to test 6- and 12-month intervention effects on positive affect and social disruption, respectively; a parallel-process model assessed mediation. RT demonstrated larger reductions in social disruption across 12 months compared to CBT and a health education control. Six-month latent change in positive affect was significant but not driven by condition. There was a significant direct effect linking the latent slopes of positive affect and social disruption but meditation was not observed. These preliminary findings hint at the value of promoting positive affect and inform the development of brief behavioral interventions that aim to augment social functioning among women surviving breast cancer.


Asunto(s)
Neoplasias de la Mama , Meditación , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/terapia , Femenino , Humanos , Relajación , Terapia por Relajación , Estrés Psicológico/terapia
13.
J Autism Dev Disord ; 52(3): 1314-1325, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33913075

RESUMEN

COVID-19 not only threatens people's physical health, but also creates disruption in work and social relationships. Parents may even experience additional strain resulting from childcare responsibilities. A total of 129 parents participated in this study. Parents of children with developmental disorders showed higher levels of parenting stress, depressive symptoms, and anxiety symptoms than did parents of children with typical development. Parenting stress and health worries were positively related to mental health symptoms. The association between having a child with developmental disorders and mental health symptoms was mediated by parenting stress. This study provides a timely investigation into the stress and mental health of parents during the COVID-19 pandemic. Implications on web-based parenting skills interventions, online psychological support services, and family-friendly policy initiatives are discussed.


Asunto(s)
Trastorno del Espectro Autista , COVID-19 , Niño , Discapacidades del Desarrollo , Humanos , Salud Mental , Pandemias , Responsabilidad Parental/psicología , Padres/psicología , SARS-CoV-2 , Estrés Psicológico/epidemiología
14.
Psychopharmacology (Berl) ; 238(10): 2851-2865, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34181036

RESUMEN

RATIONALE AND OBJECTIVE: This study was undertaken to assess the modulating effects of (1) pre-exposure to repeated social disruption and (2) group testing on writhing associated with visceral pain induced by intraperitoneal administration of acetic acid. MATERIALS AND METHODS: Six consecutive days of social disruption were used to prime for stress, while group testing referred to 3 mouse cage-mates receiving the acetic acid-induced writhing test as a group. RESULTS: Social disruption-induced stress-pre-exposed mice displayed a greater number acid-induced writhes compared to mice not receiving the pre-exposure. However, mice displayed fewer acid-induced writhes in a triad group vs. individually, suggesting group-mediated writhing-reducing effects. Likewise, group testing prevented the stress pre-exposure escalation in acid-induced writhes. Additional studies revealed that the stress-pre-exposed mice had increased expression in accumbal TRPV1 receptors. Systemic (0.25 mg/kg) and bilateral intra-accumbal (0.2 ng/0.2 µl/side) administration of SB366791, a TRPV1 receptor antagonist, reliably prevented the stress pre-exposure escalation in acid-induced writhing; SB366791 treatment alone did not affect acid-induced writhing, stress pre-exposure anxiety-like behavior, or the group testing effects. Furthermore, lower neuronal activation was found in the medial septal nucleus in group vs. individual tested mice. Intra-medial septum (0.2 µg/0.5 µl) infusion with bicuculline, a GABAA receptor antagonist, effectively prevented group-mediated writhing-reducing effects, but not individual acid-induced writhing effects. CONCLUSIONS: These findings suggest that social disruption-induced stress pre-exposure may upregulate accumbal TRPV1 receptor expression and consequently aggravate acid-induced writhing. Group testing prevents such stress pre-exposure escalation of acid-induced writhing most likely by strengthening the GABAergic inhibition on local neural activity in the medial septum.


Asunto(s)
Ácido Acético , Núcleos Septales , Ácido Acético/toxicidad , Analgésicos/uso terapéutico , Animales , Relación Dosis-Respuesta a Droga , Inyecciones Intraperitoneales , Ratones , Estrés Psicológico
15.
Curr Res Toxicol ; 2: 246-253, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34345867

RESUMEN

Restaurant kitchens are work areas where involve strict and hierarchal environments that promote opportunity for bullying and workplace aggression and violence. These physical and psychological stress and fumes ultimately trigger severe occupational stress by disrupting the body's homeostasis that might induce cardiopulmonary injury. The study aimed to investigate the physical and psychological stress and candle fumes on cardiopulmonary injury in an animal model mimicking a restaurant kitchen worker. Social disruption stress (SDR) mice were exposed to scented candle fumes (4.5 h/d, 5 d/wk) in an exposure chamber for 8 weeks. Exposure to burning scented candles failed to reduce serum corticosterone level and increased proinflammatory cytokines levels and NF-ƙB activity in the lung. In addition, burning scented candle fumes synergistically increased SDR-induced serum LDH, CPK, CKMB levels, proinflammatory cytokines production as well as NF-ƙB activation in the lung and heart. Further, cardiac HIF-1α and BNP levels were also increased. We conclude that the physical and psychological stress along with candle fumes might induce cardiopulmonary injury in mice. These results could be extrapolated to restaurant kitchen workers.

16.
Artículo en Inglés | MEDLINE | ID: mdl-33276678

RESUMEN

In this article, we investigate the impact of COVID-19 through screening and surveillance methods adopted in India, as well as the potential health system, social, political, and economic consequences. The research was done in a chronological manner, and data was collected between 30 January 2020 till 12 June 2020. Initial containment measures, including point of entry screenings and testing protocols, appeared insufficient. However, testing capacity was gradually expanded after the commencement of a nation-wide lockdown. Modeling predictions have shown varying results on the emergence of cases depending on the infectiousness of asymptomatic individuals, with a peak predicted in mid-July having over two million cases. The country also faces risks of the economic plunge by losing approximately 4% of its gross domestic product, due to containment measures and reduction in goods importation. The low public health expenditure combined with a lack of infrastructure and low fiscal response implies several challenges to scale up the COVID-19 response and management. Therefore, an emergency preparedness and response plan is essential to integrate into the health system of India.


Asunto(s)
COVID-19/epidemiología , COVID-19/prevención & control , Pandemias , Infecciones Asintomáticas/epidemiología , Prueba de COVID-19 , Predicción , Humanos , India/epidemiología , Tamizaje Masivo
17.
Brain Behav Immun Health ; 7: 100103, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32835298

RESUMEN

The coronavirus disease 2019 (COVID-19) outbreak was first reported December 2019, in Wuhan, China, and has since spread worldwide. Social distancing or isolation measures were taken to mitigate the pandemic. Furthermore, stress and low socioeconomic status in humans confer increased vulnerability to morbidity and mortality, what can be biologically observed. This condition tends to remain during the Covid-19 pandemic. Social disruption stress (SDR) raises important questions regarding the functioning of the immune system, and the release of several stress hormones. A molecular pattern, conserved transcriptional response to adversity (CTRA), is thought to have evolved to defend against physical injury during periods of heightened risk. Chronic CTRA activation could leave an organism vulnerable to viral infections, leading to increased pro-inflammatory gene expression and a suppression of anti-viral gene expression. The activation of such transcriptional status is related to conditions of social stress through either hostile human contact, or increased predatory vulnerability due to separation from the social group and also low socioeconomic status. This review aims to point out questions for government officials, researchers and health professionals to better target their actions during a pandemic and encourage studies for a better understanding of these characteristics.

18.
Neurosci Biobehav Rev ; 113: 169-178, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32109454

RESUMEN

It has been extensively studied in several mouse models how chronic, in particular chronic psychosocial, stressors facilitate the (re)activity of the innate immune system and, consequently, drive stress-associated pathologies. Here we first summarize the resulting concept and underlying mechanisms, proposing that social stress-induced bone marrow myelopoiesis, priming, emigration and activation of newly formed myeloid cells and accumulation of these cells in the spleen, gut, brain and fracture hematoma promote septic shock, colitis, anxiety and disturbed fracture healing, respectively. We further propose and discuss the hypothesis that it is not the social character of a particular stressor that promotes splenic invasion and subsequent full activation of stress-induced myeloid cells, but rather the occurrence of bite wounds as a result of direct physical interaction. Finally, we discuss the hypothesis that it is the combination of chronic stress, regardless of whether social or non-social in nature, and any kind of planned (i.e. surgery) or unplanned (i.e. bite wounds, injury) physical trauma that drives splenic invasion and subsequent full activation of stress-induced myeloid cells.


Asunto(s)
Ansiedad , Estrés Psicológico , Animales , Modelos Animales de Enfermedad , Ratones , Ratones Endogámicos C57BL , Bazo
19.
Early Interv Psychiatry ; 12(3): 426-432, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-26996283

RESUMEN

AIM: Appropriate social integration has been shown to be a protective factor against substance use among adolescents and associated negative consequences. Promoting social integration through early intervention with adolescents using substances is thus necessary and is the aim of the Identification, Assessment and Follow-up of Adolescents with Substance Use (in French, Dépistage - évaluation - parrainage d'adolescents consommateurs de substances (DEPART) programme. The present study aimed to describe this programme and its participants from 2009 to 2013 as well as to assess its effects on social integration. METHODS: Data from 398 adolescents using substances who attended the DEPART programme were analysed. RESULTS: The results showed that almost 80% of the adolescents admitted to the DEPART programme were boys, with a large proportion using cannabis. Globally, social integration did not increase from admission to discharge from the programme, but a shift was observed for school and professional integration. Additionally, after the intervention, we observed that social integration was more important in younger patients. CONCLUSIONS: This study showed that adolescents with problematic substance use mostly consumed soft drugs and that those who were integrated into the DEPART programme at a younger age were more likely to be socially integrated at the end of the programme.


Asunto(s)
Consumidores de Drogas/psicología , Desarrollo de Programa/estadística & datos numéricos , Conducta Social , Adolescente , Niño , Femenino , Humanos , Masculino , Estudios Retrospectivos , Instituciones Académicas , Adulto Joven
20.
Am J Primatol ; 27(3): 225-230, 1992.
Artículo en Inglés | MEDLINE | ID: mdl-31948137

RESUMEN

Among nonhuman primates the composition of social groups influences the interactions of group members. We assessed the effects of acute changes in social composition on behavior among 15 adult male vervet monkeys (Cercopithecus aethiops sabaeus). Subjects were observed in their basal social groups which comprised 3 adult males, 2-4 adult females, and offspring; and in two subgroups consisting of either two or three adult males. Agonism and vigilance increased in smaller groups relative to basal conditions, while subjects in two-male groups displayed more aggression than those in three-male groups. These findings suggest that, among male vervet monkeys, acute disruption of stable social groups increases aggressive behavior, and that the amount of agonism is influenced by the composition of the consequent subgroups. © 1992 Wiley-Liss, Inc.

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