1
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Takahashi A. Associations of the immune system in aggression traits and the role of microglia as mediators. Neuropharmacology 2024; 256:110021. [PMID: 38825308 DOI: 10.1016/j.neuropharm.2024.110021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
There is an important relationship between the immune system and aggressive behavior. Aggressive encounters acutely increase the levels of proinflammatory cytokines, and there are positive correlations between aggressive traits and peripheral proinflammatory cytokines. Endotoxin lipopolysaccharide (LPS) treatment, which results in peripheral immune activation, decreases aggressive behavior as one of the sickness behavioral symptoms. In contrast, certain brain infections and chronic interferon treatment are associated with increased aggression. Indeed, the effects of proinflammatory cytokines on the brain in aggressive behavior are bidirectional, depending on the type and dose of cytokine, target brain region, and type of aggression. Some studies have suggested that microglial activation and neuroinflammation influence intermale aggression in rodent models. In addition, pathological conditions as well as physiological levels of cytokines produced by microglia play an important role in social and aggressive behavior in adult animals. Furthermore, microglial function in early development is necessary for the establishment of the social brain and the expression of juvenile social behaviors, including play fighting. Overall, this review discusses the important link between the immune system and aggressive traits and the role of microglia as mediators of this link.
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Affiliation(s)
- Aki Takahashi
- Laboratory of Behavioral Neurobiology, Institute of Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.
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2
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Dasari MR, Roche KE, Jansen D, Anderson J, Alberts SC, Tung J, Gilbert JA, Blekhman R, Mukherjee S, Archie EA. Social and environmental predictors of gut microbiome age in wild baboons. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.02.605707. [PMID: 39131274 PMCID: PMC11312535 DOI: 10.1101/2024.08.02.605707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Understanding why some individuals age faster than others is essential to evolutionary biology and geroscience, but measuring variation in biological age is difficult. One solution may lie in measuring gut microbiome composition because microbiota change with many age-related factors (e.g., immunity and behavior). Here we create a microbiome-based age predictor using 13,563 gut microbial profiles from 479 wild baboons collected over 14 years. The resulting "microbiome clock" predicts host chronological age. Deviations from the clock's predictions are linked to demographic and socio-environmental factors that predict baboon health and survival: animals who appear old-for-age tend to be male, sampled in the dry season (for females), and high social status (both sexes). However, an individual's "microbiome age" does not predict the attainment of developmental milestones or lifespan. Hence, the microbiome clock accurately reflects age and some social and environmental conditions, but not the pace of development or mortality risk.
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Affiliation(s)
- Mauna R. Dasari
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA
- California Academy of Sciences, San Francisco, CA, USA
| | - Kimberly E. Roche
- Program in Computational Biology and Bioinformatics, Duke University, Durham, NC, USA
| | - David Jansen
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
| | - Jordan Anderson
- Department of Evolutionary Anthropology, Duke University, Durham, NC, USA
| | - Susan C. Alberts
- Department of Evolutionary Anthropology, Duke University, Durham, NC, USA
- Department of Biology, Duke University, Durham, NC, USA
- Duke University Population Research Institute, Duke University, Durham, NC, USA
| | - Jenny Tung
- Department of Evolutionary Anthropology, Duke University, Durham, NC, USA
- Department of Biology, Duke University, Durham, NC, USA
- Duke University Population Research Institute, Duke University, Durham, NC, USA
- Department of Primate Behavior and Evolution, Max Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany
- Canadian Institute for Advanced Research, Toronto, Ontario, Canada
- Faculty of Life Sciences, Institute of Biology, Leipzig University, Leipzig, Germany
| | - Jack A. Gilbert
- Department of Pediatrics and the Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA, USA
| | - Ran Blekhman
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Sayan Mukherjee
- Departments of Statistical Science, Mathematics, Computer Science, and Bioinformatics & Biostatistics, Duke University, Durham, NC, USA
- Center for Scalable Data Analytics and Artificial Intelligence, University of Leipzig, Leipzig Germany
- Max Planck Institute for Mathematics in the Natural Sciences, Leipzig, Germany
| | - Elizabeth A. Archie
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA
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3
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Zhang Z, Dong X, Liu Z, Liu N. Social status predicts physiological and behavioral responses to chronic stress in rhesus monkeys. iScience 2024; 27:110073. [PMID: 38883834 PMCID: PMC11176666 DOI: 10.1016/j.isci.2024.110073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 04/02/2024] [Accepted: 05/17/2024] [Indexed: 06/18/2024] Open
Abstract
Investigating the underlying factors that cause differential individual responses to chronic stress is crucial for developing personalized therapies, especially in the face of pandemics such as COVID-19. However, this question remains elusive, particularly in primates. In the present study, we aimed to address this question by utilizing monkeys as a model to examine the impacts of social rank on stress levels and physiological and behavioral responses to chronic stress primarily caused by social isolation at both the individual and group levels. Our results showed that high-ranking animals were more susceptible to chronic stress. After exposure to chronic stress, although social hierarchies remained the same, the colonies exhibited more harmonious group relationships (e.g., more prosocial behaviors), with notable contributions from low-ranking animals. Overall, this study deepens our understanding of how social status shapes responses to chronic stress and sheds light on developing tailored and personalized therapies for coping with chronic stress.
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Affiliation(s)
- Zhiyi Zhang
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Xueda Dong
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiqiang Liu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Ning Liu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Jain S, Bey GS, Forrester SN, Rahman-Filipiak A, Thompson Gonzalez N, Petrovsky DV, Kritchevsky SB, Brinkley TE. Aging, Race, and Health Disparities: Recommendations From the Research Centers Collaborative Network. J Gerontol B Psychol Sci Soc Sci 2024; 79:gbae028. [PMID: 38442186 PMCID: PMC11101762 DOI: 10.1093/geronb/gbae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Indexed: 03/07/2024] Open
Abstract
Racial disparities in adverse health outcomes with aging have been well described. Yet, much of the research focuses on racial comparisons, with relatively less attention to the identification of underlying mechanisms. To address these gaps, the Research Centers Collaborative Network held a workshop on aging, race, and health disparities to identify research priorities and inform the investigation, implementation, and dissemination of strategies to mitigate disparities in healthy aging. This article provides a summary of the key recommendations and highlights the need for research that builds a strong evidence base with both clinical and policy implications. Successful execution of these recommendations will require a concerted effort to increase participation of underrepresented groups in research through community engagement and partnerships. In addition, resources to support and promote the training and development of health disparities researchers will be critical in making health equity a shared responsibility for all major stakeholders.
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Affiliation(s)
- Snigdha Jain
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Ganga S Bey
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Sarah N Forrester
- Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Annalise Rahman-Filipiak
- Department of Psychiatry—Neuropsychology Section, University of Michigan, Ann Arbor, Michigan, USA
| | - Nicole Thompson Gonzalez
- Department of Integrative Anthropological Sciences, University of California Santa Barbara, Santa Barbara, California, USA
| | - Darina V Petrovsky
- School of Nursing, Institute for Health, Health Care Policy, and Aging Research, Rutgers University, New Brunswick, New Jersey, USA
| | - Stephen B Kritchevsky
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Tina E Brinkley
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
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5
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Kleindorfer S, Krupka MA, Katsis AC, Frigerio D, Common LK. Aggressiveness predicts dominance rank in greylag geese: mirror tests and agonistic interactions. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231686. [PMID: 38577211 PMCID: PMC10987982 DOI: 10.1098/rsos.231686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/10/2024] [Accepted: 02/07/2024] [Indexed: 04/06/2024]
Abstract
Individual differences in aggressiveness, if consistent across time and contexts, may contribute to the long-term maintenance of social hierarchies in complex animal societies. Although agonistic interactions have previously been used to calculate individuals' positions within a dominance hierarchy, to date the repeatability of agonistic behaviour has not been tested when calculating social rank. Here, we examined the consistency and social relevance of aggressiveness as a personality trait in a free-flying population of greylag geese (Anser anser). For each individual, we quantified (i) aggressiveness using a standardized mirror stimulation test and (ii) dominance ranking based on the number of agonistic interactions won and lost in a feeding context. We found that individual differences in aggressiveness were significantly repeatable and that individuals' aggressiveness predicted their dominance rank position. The flock showed a robust and intermediately steep dominance hierarchy. Social rank was higher in paired birds, males and older birds, and most agonistic interactions occurred between individuals with moderate rank differences. We suggest that selection favours aggressiveness as a personality trait associated with resource acquisition and social rank, whereby a dominance hierarchy may increase the benefits of group living and reduce costs over conflict within dyads.
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Affiliation(s)
- Sonia Kleindorfer
- Konrad Lorenz Research Center for Behavior and Cognition, Core Facility of the University of Vienna, Grünau im Almtal, Vienna4645, Austria
- Department of Behavioral and Cognitive Biology, University of Vienna, Vienna1030, Austria
- College of Science and Engineering, Flinders University, Adelaide, South Australia5042, Australia
| | - Mara A. Krupka
- Biology Department, Kalamazoo College, Kalamazoo, MI49006, USA
| | - Andrew C. Katsis
- Konrad Lorenz Research Center for Behavior and Cognition, Core Facility of the University of Vienna, Grünau im Almtal, Vienna4645, Austria
- Department of Behavioral and Cognitive Biology, University of Vienna, Vienna1030, Austria
| | - Didone Frigerio
- Konrad Lorenz Research Center for Behavior and Cognition, Core Facility of the University of Vienna, Grünau im Almtal, Vienna4645, Austria
- Department of Behavioral and Cognitive Biology, University of Vienna, Vienna1030, Austria
| | - Lauren K. Common
- Konrad Lorenz Research Center for Behavior and Cognition, Core Facility of the University of Vienna, Grünau im Almtal, Vienna4645, Austria
- Department of Behavioral and Cognitive Biology, University of Vienna, Vienna1030, Austria
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6
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Albery GF, Sweeny AR, Webber Q. How behavioural ageing affects infectious disease. Neurosci Biobehav Rev 2023; 155:105426. [PMID: 37839673 PMCID: PMC10842249 DOI: 10.1016/j.neubiorev.2023.105426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/17/2023]
Abstract
Ageing is associated with profound changes in behaviour that could influence exposure and susceptibility to infectious disease. As well as determining emergent patterns of infection across individuals of different ages, behavioural ageing could interact with, confound, or counteract age-related changes in other traits. Here, we examine how behavioural ageing can manifest and influence patterns of infection in wild animals. We discuss a range of age-related changes that involve interactions between behaviour and components of exposure and susceptibility to infection, including social ageing and immunosenescence, acquisition of novel parasites and pathogens with age, changes in spatial behaviours, and age-related hygiene and sickness behaviours. Overall, most behavioural changes are expected to result in a reduced exposure rate, but there is relatively little evidence for this phenomenon, emerging largely from a rarity of explicit tests of exposure changes over the lifespan. This review offers a framework for understanding how ageing, behaviour, immunity, and infection interact, providing a series of hypotheses and testable predictions to improve our understanding of health in ageing societies.
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Affiliation(s)
- Gregory F Albery
- Department of Biology, Georgetown University, Washington, DC, USA; Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, Scotland, UK; Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.
| | - Amy R Sweeny
- School of Biosciences, University of Sheffield, Sheffield, England, UK
| | - Quinn Webber
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
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7
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Zipple MN, Vogt CC, Sheehan MJ. Re-wilding model organisms: Opportunities to test causal mechanisms in social determinants of health and aging. Neurosci Biobehav Rev 2023; 152:105238. [PMID: 37225063 PMCID: PMC10527394 DOI: 10.1016/j.neubiorev.2023.105238] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/14/2023] [Accepted: 05/17/2023] [Indexed: 05/26/2023]
Abstract
Social experiences are strongly associated with individuals' health, aging, and survival in many mammalian taxa, including humans. Despite their role as models of many other physiological and developmental bases of health and aging, biomedical model organisms (particularly lab mice) remain an underutilized tool in resolving outstanding questions regarding social determinants of health and aging, including causality, context-dependence, reversibility, and effective interventions. This status is largely due to the constraints of standard laboratory conditions on animals' social lives. Even when kept in social housing, lab animals rarely experience social and physical environments that approach the richness, variability, and complexity they have evolved to navigate and benefit from. Here we argue that studying biomedical model organisms outside under complex, semi-natural social environments ("re-wilding") allows researchers to capture the methodological benefits of both field studies of wild animals and laboratory studies of model organisms. We review recent efforts to re-wild mice and highlight discoveries that have only been made possible by researchers studying mice under complex, manipulable social environments.
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Affiliation(s)
- Matthew N Zipple
- Laboratory for Animal Social Evolution and Recognition, Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, USA.
| | - Caleb C Vogt
- Laboratory for Animal Social Evolution and Recognition, Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, USA
| | - Michael J Sheehan
- Laboratory for Animal Social Evolution and Recognition, Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, USA.
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8
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Phillips SR. MHC-B Diversity and Signs of Respiratory Illness in Wild, East African Chimpanzees ( Pan troglodytes schweinfurthii ). BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.02.551731. [PMID: 37577711 PMCID: PMC10418158 DOI: 10.1101/2023.08.02.551731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Many traits, intrinsic and extrinsic to an organism, contribute to interindividual variation in immunity in wild habitats. The vertebrate Major Histocompatibility Complex (MHC) includes genes encoding antigen-presenting molecules that are highly variable, and that variation often predicts susceptibility/resistance to and recovery from pathogen infection. I compare MHC-B variation at two long-term chimpanzee research sites, Kibale National Park in Uganda and Gombe National Park in Tanzania. Using decades of respiratory health data available for these chimpanzees, I test hypotheses associated with maintenance of diversity at MHC loci, including heterozygote, divergent allele, and rare allele advantage hypotheses, and predictions for unique function of MHC-B in great apes. I found, despite confirmation of recent shared ancestry between Kibale and Gombe chimpanzees, including an overlapping MHC-B allele repertoire and similar MHC-B phenotype compositions, chimpanzees from the two research sites experienced differences in the occurrence of respiratory signs and had different associations of MHC-B diversity with signs of respiratory illness. Kibale chimpanzees with heterozygous genotypes and different peptide-binding supertypes were observed less often with respiratory signs than those homozygous or possessing the same supertypes, but this same association was not observed among Gombe chimpanzees. Gombe chimpanzees with specific MHC-B phenotypes that enable engagement of Natural Killer (NK) cells were observed more often with respiratory signs than chimpanzees with other phenotypes, but this was not observed at Kanyawara. This study emphasizes local adaptation in shaping genetic and phenotypic traits in different infectious disease contexts, even among close genetic relatives of the same subspecies, and highlights utility for continued and simultaneous tracking of host immune genes and specific pathogens in wild species.
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9
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Dunbar RIM, Shultz S. Four errors and a fallacy: pitfalls for the unwary in comparative brain analyses. Biol Rev Camb Philos Soc 2023; 98:1278-1309. [PMID: 37001905 DOI: 10.1111/brv.12953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 04/03/2023]
Abstract
Comparative analyses are the backbone of evolutionary analysis. However, their record in producing a consensus has not always been good. This is especially true of attempts to understand the factors responsible for the evolution of large brains, which have been embroiled in an increasingly polarised debate over the past three decades. We argue that most of these disputes arise from a number of conceptual errors and associated logical fallacies that are the result of a failure to adopt a biological systems-based approach to hypothesis-testing. We identify four principal classes of error: a failure to heed Tinbergen's Four Questions when testing biological hypotheses, misapplying Dobzhansky's Dictum when testing hypotheses of evolutionary adaptation, poorly chosen behavioural proxies for underlying hypotheses, and the use of inappropriate statistical methods. In the interests of progress, we urge a more careful and considered approach to comparative analyses, and the adoption of a broader, rather than a narrower, taxonomic perspective.
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Affiliation(s)
- Robin I M Dunbar
- Department of Experimental Psychology, Anna Watts Building, University of Oxford, Oxford, OX2 6GG, UK
| | - Susanne Shultz
- Department of Earth and Environmental Sciences, Michael Smith Building, University of Manchester, Manchester, M13 9PT, UK
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10
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MacLeod KJ, English S, Ruuskanen SK, Taborsky B. Stress in the social context: a behavioural and eco-evolutionary perspective. J Exp Biol 2023; 226:jeb245829. [PMID: 37529973 PMCID: PMC10445731 DOI: 10.1242/jeb.245829] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
The social environment is one of the primary sources of challenging stimuli that can induce a stress response in animals. It comprises both short-term and stable interactions among conspecifics (including unrelated individuals, mates, potential mates and kin). Social stress is of unique interest in the field of stress research because (1) the social domain is arguably the most complex and fluctuating component of an animal's environment; (2) stress is socially transmissible; and (3) stress can be buffered by social partners. Thus, social interactions can be both the cause and cure of stress. Here, we review the history of social stress research, and discuss social stressors and their effects on organisms across early life and adulthood. We also consider cross-generational effects. We discuss the physiological mechanisms underpinning social stressors and stress responses, as well as the potential adaptive value of responses to social stressors. Finally, we identify outstanding challenges in social stress research, and propose a framework for addressing these in future work.
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Affiliation(s)
| | - Sinead English
- School of Biological Sciences, University of Bristol, Bristol, BS8 1TQ, UK
| | - Suvi K. Ruuskanen
- Department of Biological and Environmental Science, University of Jyväskylä, Survontie 9 C, FI-40014, Finland
- Department of Biology, University of Turku, Turku, FI-20014, Finland
| | - Barbara Taborsky
- Division of Behavioural Biology, Institute of Ecology and Evolution, University of Bern, 3012 Bern, Switzerland
- Institute for Advanced Study, 14193 Berlin, Germany
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11
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Higham JP, Cooper EB, Whalen C, Stahl-Hennig C, Giavedoni LD, Heistermann M. Urinary cytokine measurements do not reflect surgery-induced inflammation in rhesus macaques. Am J Primatol 2023; 85:e23506. [PMID: 37222418 DOI: 10.1002/ajp.23506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 03/14/2023] [Accepted: 04/29/2023] [Indexed: 05/25/2023]
Abstract
Measurement of the health and disease status of free-ranging primates is often limited by a lack of available biomarkers of immune activation and inflammation that can be applied noninvasively via the measurement of urine or fecal samples. Here, we evaluate the potential usefulness of noninvasive urinary measurements of a number of cytokines, chemokines, and other markers of inflammation and infection. We took advantage of surgery-associated inflammation in seven captive rhesus macaques, collecting urine samples before and after the medical interventions. We measured these urine samples for 33 different markers of inflammation and immune activation that are known to be responsive to inflammation and infection in rhesus macaque blood samples, via the Luminex platform. We also measured all samples for concentrations of the soluble urokinase plasminogen activator receptor (suPAR), which we had validated in a prior study as an effective biomarker of inflammation. Despite urine samples being collected in captivity under ideal conditions (clean, no contamination with feces or soil, frozen quickly), 13/33 biomarkers measured via Luminex were found at concentrations below detection limits in >50% of samples. Of the remaining 20 markers, only 2 showed significant increases in response to surgery-IL18 and MPO (myeloperoxidase). However, suPAR measurements of the same samples show a consistent marked increase in response to surgery that is absent from the patterns of IL18 and MPO measurement. Given that our samples were collected under conditions that are greatly preferable to those usually encountered in the field, urinary cytokine measurements via the Luminex platform seem overall unpromising for primate field studies.
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Affiliation(s)
- James P Higham
- Department of Anthropology, New York University, New York, New York, USA
| | - Eve B Cooper
- Department of Anthropology, New York University, New York, New York, USA
| | - Connor Whalen
- Department of Anthropology, New York University, New York, New York, USA
| | | | - Luis D Giavedoni
- Southwest National Primate Research Center, Texas Biomedical Research Institute, Texas, San Antonio, USA
- Department of Biology, Trinity University, San Antonio, Texas, USA
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12
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Zilkha N, Chuartzman SG, Sofer Y, Pen Y, Cum M, Mayo A, Alon U, Kimchi T. Sex-dependent control of pheromones on social organization within groups of wild house mice. Curr Biol 2023; 33:1407-1420.e4. [PMID: 36917976 PMCID: PMC10132349 DOI: 10.1016/j.cub.2023.02.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/23/2023] [Accepted: 02/13/2023] [Indexed: 03/16/2023]
Abstract
Dominance hierarchy is a fundamental social phenomenon in a wide range of mammalian species, critically affecting fitness and health. Here, we investigate the role of pheromone signals in the control of social hierarchies and individual personalities within groups of wild mice. For this purpose, we combine high-throughput behavioral phenotyping with computational tools in freely interacting groups of wild house mice, males and females, in an automated, semi-natural system. We show that wild mice form dominance hierarchies in both sexes but use sex-specific strategies, displaying distinct male-typical and female-typical behavioral personalities that were also associated with social ranking. Genetic disabling of VNO-mediated pheromone detection generated opposite behavioral effects within groups, enhancing social interactions in males and reducing them in females. Behavioral personalities in the mutated mice displayed mixtures of male-typical and female-typical behaviors, thus blurring sex differences. In addition, rank-associated personalities were abolished despite the fact that both sexes of mutant mice formed stable hierarchies. These findings suggest that group organization is governed by pheromone-mediated sex-specific neural circuits and pave the way to investigate the mechanisms underlying sexual dimorphism in dominance hierarchies under naturalistic settings.
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Affiliation(s)
- Noga Zilkha
- Department of Brain Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | | | - Yizhak Sofer
- Department of Brain Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Yefim Pen
- Department of Brain Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Meghan Cum
- Department of Brain Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Avi Mayo
- Department of Molecular Cell Biology, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Uri Alon
- Department of Molecular Cell Biology, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Tali Kimchi
- Department of Brain Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel.
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13
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Leimar O, Bshary R. Effects of local versus global competition on reproductive skew and sex differences in social dominance behaviour. Proc Biol Sci 2022; 289:20222081. [PMID: 36448421 PMCID: PMC9709658 DOI: 10.1098/rspb.2022.2081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Social hierarchies are often found in group-living animals. The hierarchy position can influence reproductive success (RS), with a skew towards high-ranking individuals. The amount of aggression in social dominance varies greatly, both between species and between males and females within species. Using game theory we study this variation by taking into account the degree to which reproductive competition in a social group is mainly local to the group, emphasizing within-group relative RS, or global to a larger population, emphasizing an individual's absolute RS. Our model is similar to recent approaches in that reinforcement learning is used as a behavioural mechanism allowing social-hierarchy formation. We test two hypotheses. The first is that local competition should favour the evolution of mating or foraging interference, and thus of reproductive skew. Second, decreases in reproductive output caused by an individual's accumulated fighting damage, such as reduced parenting ability, will favour less intense aggression but should have little influence on reproductive skew. From individual-based simulations of the evolution of social dominance and interference, we find support for both hypotheses. We discuss to what extent our results can explain observed sex differences in reproductive skew and social dominance behaviour.
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Affiliation(s)
- Olof Leimar
- Department of Zoology, Stockholm University, 106 91 Stockholm, Sweden
| | - Redouan Bshary
- Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
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14
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Johnson KVA, Watson KK, Dunbar RIM, Burnet PWJ. Sociability in a non-captive macaque population is associated with beneficial gut bacteria. Front Microbiol 2022; 13:1032495. [PMID: 36439813 PMCID: PMC9691693 DOI: 10.3389/fmicb.2022.1032495] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/03/2022] [Indexed: 11/12/2022] Open
Abstract
The relationship between social behaviour and the microbiome is known to be reciprocal. Research in wild animal populations, particularly in primate social groups, has revealed the role that social interactions play in microbial transmission, whilst studies in laboratory animals have demonstrated that the gut microbiome can affect multiple aspects of behaviour, including social behaviour. Here we explore behavioural variation in a non-captive animal population with respect to the abundance of specific bacterial genera. Social behaviour based on grooming interactions is assessed in a population of rhesus macaques (Macaca mulatta), and combined with gut microbiome data. We focus our analyses on microbiome genera previously linked to sociability and autistic behaviours in rodents and humans. We show in this macaque population that some of these genera are also related to an individual's propensity to engage in social interactions. Interestingly, we find that several of the genera positively related to sociability, such as Faecalibacterium, are well known for their beneficial effects on health and their anti-inflammatory properties. In contrast, the genus Streptococcus, which includes pathogenic species, is more abundant in less sociable macaques. Our results indicate that microorganisms whose abundance varies with individual social behaviour also have functional links to host immune status. Overall, these findings highlight the connections between social behaviour, microbiome composition, and health in an animal population.
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Affiliation(s)
- Katerina V.-A. Johnson
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom,Department of Experimental Psychology, University of Oxford, Oxford, United Kingdom,*Correspondence: Katerina V.-A. Johnson,
| | - Karli K. Watson
- Institute of Cognitive Science, University of Colorado Boulder, Boulder, CO, United States
| | - Robin I. M. Dunbar
- Department of Experimental Psychology, University of Oxford, Oxford, United Kingdom
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15
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Castell N, Guerrero-Martin SM, Rubin LH, Shirk EN, Brockhurst JK, Lyons CE, Najarro KM, Queen SE, Carlson BW, Adams RJ, Morrell CN, Gama L, Graham DR, Zink C, Mankowski JL, Clements JE, Metcalf Pate KA. Effect of Single Housing on Innate Immune Activation in Immunodeficiency Virus-Infected Pigtail Macaques ( Macaca nemestrina ) as a Model of Psychosocial Stress in Acute HIV Infection. Psychosom Med 2022; 84:966-975. [PMID: 36162063 PMCID: PMC9553260 DOI: 10.1097/psy.0000000000001132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 07/27/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Simian immunodeficiency virus (SIV) infection of macaques recapitulates many aspects of HIV pathogenesis and is similarly affected by both genetic and environmental factors. Psychosocial stress is associated with immune system dysregulation and worse clinical outcomes in people with HIV. This study assessed the impact of single housing, as a model of psychosocial stress, on innate immune responses of pigtailed macaques ( Macaca nemestrina ) during acute SIV infection. METHODS A retrospective analysis of acute SIV infection of 2- to si6-year-old male pigtailed macaques was performed to compare the innate immune responses of socially ( n = 41) and singly ( n = 35) housed animals. Measures included absolute monocyte count and subsets, and in a subset ( n ≤ 18) platelet counts and activation data. RESULTS SIV infection resulted in the expected innate immune parameter changes with a modulating effect from housing condition. Monocyte number increased after infection for both groups, driven by classical monocytes (CD14 + CD16 - ), with a greater increase in socially housed animals (227%, p < .001, by day 14 compared with preinoculation time points). Platelet numbers recovered more quickly in the socially housed animals. Platelet activation (P-selectin) increased by 65% ( p = .004) and major histocompatibility complex class I surface expression by 40% ( p = .009) from preinoculation only in socially housed animals, whereas no change in these measures occurred in singly housed animals. CONCLUSIONS Chronic psychosocial stress produced by single housing may play an immunomodulatory role in the innate immune response to acute retroviral infection. Dysregulated innate immunity could be one of the pathways by which psychosocial stress contributes to immune suppression and increased disease severity in people with HIV.
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16
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Centofanti A, Vermiglio G, Cutroneo G, Favaloro A, Picciolo G, Festa F, Anastasi GP. Dystrophin-Glycoprotein Complex Behavior in Sternocleidomastoid Muscle of High- and Low-Ranking Baboons: A Possible Phylogenetic Arrangement. J Funct Morphol Kinesiol 2022; 7:jfmk7030062. [PMID: 36135420 PMCID: PMC9502455 DOI: 10.3390/jfmk7030062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
The dystrophin-glycoprotein complex is a multimeric system made up of the sarcoglycan sub-complex, the sarcomplasmatic complex and the dystroglycans complex. The sarcoglycan sub-complex stabilizes the sarcolemma during muscle activity and plays a role in force transduction. This protein system is also expressed in the muscle of non-human primates such as chimpanzees and baboons, and its expression changes depending on social ranking. In fact, previous data have shown that all muscle fibers of masseter and sternocleidomastoid muscles of chimpanzees and high- ranking baboons always express sarcoglycans, while middle- and low-ranking baboons are characterized by fibers that are negative for the sarcoglycan sub-complex. Given this information, the aim of the present work was to evaluate the expression of other proteins such as laminin, beta dystroglycan and dystrophin in the sternocleidomastoid muscle of high- and low-ranking baboons. The samples were processed by immunohistochemistry; results show that in high-ranking baboons, all tested proteins were always expressed while in low-ranking baboons, fibers that were negative for sarcoglycans and beta dystroglycan have been observed. No negative fibers for laminin and dystrophin have been found in low-ranking baboons suggesting that only the transmembrane proteins of the dystrophin glycoprotein complex change in their expression and that could be correlated to a phylogenetic arrangement.
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Affiliation(s)
- Antonio Centofanti
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98124 Messina, Italy
| | - Giovanna Vermiglio
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98124 Messina, Italy
- Correspondence:
| | - Giuseppina Cutroneo
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98124 Messina, Italy
| | - Angelo Favaloro
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98124 Messina, Italy
| | - Giacomo Picciolo
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98124 Messina, Italy
| | - Felice Festa
- Department of Innovative Technologies in Medicine and Dentistry, University “G. D’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Giuseppe Pio Anastasi
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98124 Messina, Italy
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17
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Azoulay R, Gilboa-Schechtman E. The scarring impact of status loss in social anxiety: An evolutionary perspective. J Anxiety Disord 2022; 90:102600. [PMID: 35841783 DOI: 10.1016/j.janxdis.2022.102600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 12/01/2022]
Abstract
Evolutionary models suggest that social anxiety (SA) is associated with sensitivity to status loss. These models make several additional predictions concerning the strength as well as the specificity of the association between post-event distress (PED) following status losses and SA. First, the strength of this association is postulated to be enhanced in men, especially following status losses inflicted by other men (intra-male status losses). Second, given the evolutionary postulated relationship between social status and physical fitness, sensitivity to status loss in SA is expected to extend to physically threatening events. We examined these predictions in four online samples (total N = 1123; 59% females, 27% above the cutoff for clinically elevated SA). In all studies, participants recalled social status-loss events and rated the emotional and distressing impact of these experiences. In two samples, participants also identified and recalled physically threatening events. Our findings were consistent with evolutionary predictions. SA was associated with PED following social status-loss events (β = 0.27). This association was stronger in men than in women (β = 0.40, β = 0.16, respectively). Moreover, the SA-PED association was especially enhanced following intra-male, compared to intra-female and inter-gender, status losses (β = 0.47, β = 0.26, and β = 0.17, respectively). Furthermore, SA was uniquely associated with PED following physically threatening events, over and above PED following social status-loss events (β = 0.21). Our data highlights the significant impact of socially and physically threatening events and delineates the scarring signature of such events in SA.
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Affiliation(s)
- Roy Azoulay
- Department of Psychology and Gonda Multidisciplinary Brain Center, Bar-Ilan University, Israel.
| | - Eva Gilboa-Schechtman
- Department of Psychology and Gonda Multidisciplinary Brain Center, Bar-Ilan University, Israel
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18
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Lucore JM, Marshall AJ, Brosnan SF, Benítez ME. Validating Urinary Neopterin as a Biomarker of Immune Response in Captive and Wild Capuchin Monkeys. Front Vet Sci 2022; 9:918036. [PMID: 35909690 PMCID: PMC9326447 DOI: 10.3389/fvets.2022.918036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/25/2022] [Indexed: 11/13/2022] Open
Abstract
Non-invasive health monitoring is advantageous for wild and captive primate populations because it reduces the need for traditional invasive techniques (i.e., anesthetization) that can be stressful and potentially harmful for individuals. The biomarker neopterin is an emerging tool in primatology to measure immune activation and immunosenescence, however, most neopterin studies have focused on catarrhine species with little comparative work examining neopterin and health in platyrrhines. To address this gap, we validated a commercially available enzyme-linked immunosorbent assay (ELISA) to measure urinary neopterin in two types of capuchin monkeys, a wild population of white-faced capuchins (Cebus imitator) and a socially housed captive colony of tufted capuchins (Sapajus apella). We analytically validated methods for measuring urinary neopterin in two capuchin populations and demonstrated that two commonly-used methods to control for urine concentration-creatinine and specific gravity (SG)-produced highly concordant results. We also biologically validated these methods by examining variation in neopterin levels based on environment (captive and wild) and age, and changes in levels associated with immune-response. We found that neopterin increased after immune perturbation (rabies vaccine booster), varied by environmental condition, and mirrored expected trends in immune system ontogeny. Our results improve understanding of the innate immune system in platyrrhine species and suggest neopterin may be useful for non-invasive health monitoring in both captive and wild primates.
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Affiliation(s)
- Jordan M. Lucore
- Department of Anthropology, University of Michigan, Ann Arbor, MI, United States
- Capuchinos de Taboga Research Project, Taboga Forest Reserve, Guanacaste, Costa Rica
| | - Andrew J. Marshall
- Department of Anthropology, University of Michigan, Ann Arbor, MI, United States
- Program in the Environment, University of Michigan, Ann Arbor, MI, United States
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, United States
- School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, United States
| | - Sarah F. Brosnan
- Department of Psychology and Neuroscience Institute, Georgia State University, Atlanta, GA, United States
- Language Research Center, Georgia State University, Atlanta, GA, United States
| | - Marcela E. Benítez
- Capuchinos de Taboga Research Project, Taboga Forest Reserve, Guanacaste, Costa Rica
- Language Research Center, Georgia State University, Atlanta, GA, United States
- Department of Anthropology, Emory University, Atlanta, GA, United States
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19
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Lee W, Milewski TM, Dwortz MF, Young RL, Gaudet AD, Fonken LK, Champagne FA, Curley JP. Distinct immune and transcriptomic profiles in dominant versus subordinate males in mouse social hierarchies. Brain Behav Immun 2022; 103:130-144. [PMID: 35447300 DOI: 10.1016/j.bbi.2022.04.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 03/31/2022] [Accepted: 04/14/2022] [Indexed: 12/15/2022] Open
Abstract
Social status is a critical factor determining health outcomes in human and nonhuman social species. In social hierarchies with reproductive skew, individuals compete to monopolize resources and increase mating opportunities. This can come at a significant energetic cost leading to trade-offs between different physiological systems. In particular, changes in energetic investment in the immune system can have significant short and long-term effects on fitness and health. We have previously found that dominant alpha male mice living in social hierarchies have increased metabolic demands related to territorial defense. In this study, we tested the hypothesis that high-ranking male mice favor adaptive immunity, while subordinate mice show higher investment in innate immunity. We housed 12 groups of 10 outbred CD-1 male mice in a social housing system. All formed linear social hierarchies and subordinate mice had higher concentrations of plasma corticosterone (CORT) than alpha males. This difference was heightened in highly despotic hierarchies. Using flow cytometry, we found that dominant status was associated with a significant shift in immunophenotypes towards favoring adaptive versus innate immunity. Using Tag-Seq to profile hepatic and splenic transcriptomes of alpha and subordinate males, we identified genes that regulate metabolic and immune defense pathways that are associated with status and/or CORT concentration. In the liver, dominant animals showed a relatively higher expression of specific genes involved in major urinary production and catabolic processes, whereas subordinate animals showed relatively higher expression of genes promoting biosynthetic processes, wound healing, and proinflammatory responses. In spleen, subordinate mice showed relatively higher expression of genes facilitating oxidative phosphorylation and DNA repair and CORT was negatively associated with genes involved in lymphocyte proliferation and activation. Together, our findings suggest that dominant and subordinate animals adaptively shift immune profiles and peripheral gene expression to match their contextual needs.
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Affiliation(s)
- Won Lee
- Department of Psychology, University of Texas at Austin, Austin, TX, USA; Department of In Vivo Pharmacology Services, The Jackson Laboratory, Sacramento, CA, USA
| | - Tyler M Milewski
- Department of Psychology, University of Texas at Austin, Austin, TX, USA
| | - Madeleine F Dwortz
- Department of Psychology, University of Texas at Austin, Austin, TX, USA; Institute for Neuroscience, University of Texas at Austin, Austin, TX, USA
| | - Rebecca L Young
- Department of Integrative Biology, University of Texas at Austin, Austin, TX, USA
| | - Andrew D Gaudet
- Department of Psychology, University of Texas at Austin, Austin, TX, USA; Department of Neurology, University of Texas at Austin, Austin, TX, USA
| | - Laura K Fonken
- Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX, USA
| | | | - James P Curley
- Department of Psychology, University of Texas at Austin, Austin, TX, USA.
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20
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Smeltzer EA, Stead SM, Li MF, Samson D, Kumpan LT, Teichroeb JA. Social sleepers: The effects of social status on sleep in terrestrial mammals. Horm Behav 2022; 143:105181. [PMID: 35594742 DOI: 10.1016/j.yhbeh.2022.105181] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/12/2022] [Accepted: 04/22/2022] [Indexed: 11/18/2022]
Abstract
Social status among group-living mammals can impact access to resources, such as water, food, social support, and mating opportunities, and this differential access to resources can have fitness consequences. Here, we propose that an animal's social status impacts their access to sleep opportunities, as social status may predict when an animal sleeps, where they sleep, who they sleep with, and how well they sleep. Our review of terrestrial mammals examines how sleep architecture and intensity may be impacted by (1) sleeping conditions and (2) the social experience during wakefulness. Sleeping positions vary in thermoregulatory properties, protection from predators, and exposure to parasites. Thus, if dominant individuals have priority of access to sleeping positions, they may benefit from higher quality sleeping conditions and, in turn, better sleep. With respect to waking experiences, we discuss the impacts of stress on sleep, as it has been established that specific social statuses can be characterized by stress-related physiological profiles. While much research has focused on how dominance hierarchies impact access to resources like food and mating opportunities, differential access to sleep opportunities among mammals has been largely ignored despite its potential fitness consequences.
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Affiliation(s)
- E A Smeltzer
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada
| | - S M Stead
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada.
| | - M F Li
- Department of Anthropology, University of Toronto, 19 Russell St., Toronto, Ontario M5S 2S2, Canada
| | - D Samson
- Department of Anthropology, University of Toronto Mississauga, 3359 Mississauga Rd., Mississauga, Ontario L5L 1C6, Canada
| | - L T Kumpan
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada
| | - J A Teichroeb
- Department of Anthropology, University of Toronto Scarborough, 1265 Military Trail, Scarborough, Ontario M1C 1A4, Canada
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21
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Dias PAD, Coyohua-Fuentes A, Chavira-Ramírez DR, Canales-Espinosa D, Rangel-Negrín A. Correlates of hormonal modulation in mantled howler monkey males, Alouatta palliata. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2022; 178:17-28. [PMID: 36787731 DOI: 10.1002/ajpa.24464] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 11/10/2022]
Abstract
OBJECTIVES The study of hormone modulation may offer important insight into the responses of individuals to environmental challenges. Here we studied C-peptide, thyroid hormone (T3), glucocorticoid (GC), and testosterone (T) metabolites of mantled howler males to assess: 1) correlations among hormones; 2) individual and temporal variation in hormone concentrations; and 3) the influence of ecological, climatic, behavioral, social, and reproductive factors on hormone variation. METHODS We studied 10 adult males at La Flor de Catemaco (Mexico) from January 2012 to December 2016. We collected information on food availability; ambient temperature; time budgets; male involvement in mating, agonistic interactions, and interactions with extragroup males. We analyzed C-peptide concentrations in urine samples and T3, GC, and T in fecal samples. RESULTS C-peptide was negatively correlated with other hormones, whereas T3, GC, and T were positively related. Hormonal variation was unrelated to individual or yearly differences. Food availability was positively related to C-peptide and T3, and negatively related to GC. Involvement in mating was positively related to T3 and T, whereas the rate agonistic interactions was positively related to GC and T. The rate of interactions with extragroup males was positively related to T. When males mated, the increase in C-peptide and the decrease in GC with increasing food availability were less notable. CONCLUSIONS Hormonal variation in mantled howler monkey males is generally stable, but it is influenced by several factors. Our results offer a broad picture of the hormonal modulation of mantled howler monkey males in response to diverse challenges.
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Affiliation(s)
- Pedro Américo D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | | | - David Roberto Chavira-Ramírez
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | - Domingo Canales-Espinosa
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Ariadna Rangel-Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
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22
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Kappeler PM, Fichtel C, Radespiel U. The Island of Female Power? Intersexual Dominance Relationships in the Lemurs of Madagascar. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.858859] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The extant primates of Madagascar (Lemuriformes) represent the endpoints of an adaptive radiation following a single colonization event more than 50 million years ago. They have since evolved a diversity of life history traits, ecological adaptations and social systems that rivals that of all other living primates combined. Their social systems are characterized by a unique combination of traits, including the ability of adult females to dominate adult males. In fact, there is no other group of mammals in which female dominance is so widespread. Yet, recent research has indicated that there is more interspecific variation in lemur intersexual relationships than previously acknowledged. Here, we therefore review and summarize the relevant literature, quantifying the extent of sex-bias in intersexual dominance relations documented in observational and experimental studies in captivity and the wild. Female dominance is often, but not always, implemented by spontaneous male submission in the absence of female aggression and linked to female sexual maturation. We connect the available evidence to the hypotheses that have been proposed to explain the evolution of female dominance among lemurs. The occurrence of female dominance in all lemur families and the interspecific variation in its extent indicate that it has evolved soon after lemurs colonized Madagascar – presumably in response to particular ecological challenges – and that it has since been reduced in magnitude independently in some taxa. Our study contributes important comparative information on sex roles from an independent primate radiation and provides general insights into the conditions, opportunities and obstacles in the evolution of female-biased power.
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23
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Goll Y, Bordes C, Weissman YA, Shnitzer I, Beukeboom R, Ilany A, Koren L, Geffen E. Sex-associated and context-dependent leadership in the rock hyrax. iScience 2022; 25:104063. [PMID: 35359807 PMCID: PMC8961210 DOI: 10.1016/j.isci.2022.104063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/26/2021] [Accepted: 03/09/2022] [Indexed: 11/17/2022] Open
Abstract
In many mammalian species, both sexes may take leadership role, but different traits may play a role in determining variation within species. Here we examine the effect of sex on leadership. We present three complementary datasets derived from a well-studied population of wild rock hyrax (Procavia capensis). The findings demonstrated that male and female rock hyraxes take on different leadership positions, depending on the context. When risk is moderate, more likely to lead are younger resident males, which experience high cortisol and lower testosterone levels. However, during acute predation scenarios, more likely to lead are males with lower centrality status. We suggest that hyrax males exhibit risky behaviors that may reflect their need for self-advertisement. In contrast, leadership among group females is more equally distributed. Females have little to gain from risky actions due to the lack of competition among them, but nonetheless take leadership positions. Different traits play a role in hyrax male and female leaders, in different contexts On moderate risk, younger resident males with high cortisol and low testosterone lead During predation scenario, lower centrality status males lead Among group females, leadership is more equally distributed
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Affiliation(s)
- Yael Goll
- School of Zoology, Tel Aviv University, Tel Aviv, Israel
| | - Camille Bordes
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Yishai A. Weissman
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Inbar Shnitzer
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Rosanne Beukeboom
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Amiyaal Ilany
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Lee Koren
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Eli Geffen
- School of Zoology, Tel Aviv University, Tel Aviv, Israel
- Corresponding author
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24
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Hobson EA. Quantifying the dynamics of nearly 100 years of dominance hierarchy research. Philos Trans R Soc Lond B Biol Sci 2022; 377:20200433. [PMID: 35000439 PMCID: PMC8743886 DOI: 10.1098/rstb.2020.0433] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/26/2021] [Indexed: 12/17/2022] Open
Abstract
Dominance hierarchies have been studied for almost 100 years. The science of science approach used here provides high-level insight into how the dynamics of dominance hierarchy research have shifted over this long timescale. To summarize these patterns, I extracted publication metadata using a Google Scholar search for the phrase 'dominance hierarchy', resulting in over 26 000 publications. I used text mining approaches to assess patterns in three areas: (1) general patterns in publication frequency and rate, (2) dynamics of term usage and (3) term co-occurrence in publications across the history of the field. While the overall number of publications per decade continues to rise, the percent growth rate has fallen in recent years, demonstrating that although there is sustained interest in dominance hierarchies, the field is no longer experiencing the explosive growth it showed in earlier decades. Results from title term co-occurrence networks and community structure show that the different subfields of dominance hierarchy research were most strongly separated early in the field's history while modern research shows more evidence for cohesion and a lack of distinct term community boundaries. These methods provide a general view of the history of research on dominance hierarchies and can be applied to other fields or search terms to gain broad synthetic insight into patterns of interest, especially in fields with large bodies of literature. This article is part of the theme issue 'The centennial of the pecking order: current state and future prospects for the study of dominance hierarchies'.
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Affiliation(s)
- Elizabeth A. Hobson
- Department of Biological Sciences, University of Cincinnati, Cincinnati, OH 45221, USA
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25
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Milewski TM, Lee W, Champagne FA, Curley JP. Behavioural and physiological plasticity in social hierarchies. Philos Trans R Soc Lond B Biol Sci 2022; 377:20200443. [PMID: 35000436 PMCID: PMC8743892 DOI: 10.1098/rstb.2020.0443] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/08/2021] [Indexed: 12/16/2022] Open
Abstract
Individuals occupying dominant and subordinate positions in social hierarchies exhibit divergent behaviours, physiology and neural functioning. Dominant animals express higher levels of dominance behaviours such as aggression, territorial defence and mate-guarding. Dominants also signal their status via auditory, visual or chemical cues. Moreover, dominant animals typically increase reproductive behaviours and show enhanced spatial and social cognition as well as elevated arousal. These biobehavioural changes increase energetic demands that are met via shifting both energy intake and metabolism and are supported by coordinated changes in physiological systems including the hypothalamic-pituitary-adrenal and hypothalamic-pituitary-gonadal axes as well as altered gene expression and sensitivity of neural circuits that regulate these behaviours. Conversely, subordinate animals inhibit dominance and often reproductive behaviours and exhibit physiological changes adapted to socially stressful contexts. Phenotypic changes in both dominant and subordinate individuals may be beneficial in the short-term but lead to long-term challenges to health. Further, rapid changes in social ranks occur as dominant animals socially ascend or descend and are associated with dynamic modulations in the brain and periphery. In this paper, we provide a broad overview of how behavioural and phenotypic changes associated with social dominance and subordination are expressed in neural and physiological plasticity. This article is part of the theme issue 'The centennial of the pecking order: current state and future prospects for the study of dominance hierarchies'.
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Affiliation(s)
- T. M. Milewski
- Department of Psychology, University of Texas at Austin, Austin, TX 78712, USA
| | - W. Lee
- Department of Psychology, University of Texas at Austin, Austin, TX 78712, USA
| | - F. A. Champagne
- Department of Psychology, University of Texas at Austin, Austin, TX 78712, USA
| | - J. P. Curley
- Department of Psychology, University of Texas at Austin, Austin, TX 78712, USA
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26
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McCowan B, Vandeleest J, Balasubramaniam K, Hsieh F, Nathman A, Beisner B. Measuring dominance certainty and assessing its impact on individual and societal health in a nonhuman primate model: a network approach. Philos Trans R Soc Lond B Biol Sci 2022; 377:20200438. [PMID: 35000448 PMCID: PMC8743881 DOI: 10.1098/rstb.2020.0438] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/23/2021] [Indexed: 12/25/2022] Open
Abstract
The notion of dominance is ubiquitous across the animal kingdom, wherein some species/groups such relationships are strictly hierarchical and others are not. Modern approaches for measuring dominance have emerged in recent years taking advantage of increased computational power. One such technique, named Percolation and Conductance (Perc), uses both direct and indirect information about the flow of dominance relationships to generate hierarchical rank order that makes no assumptions about the linearity of these relationships. It also provides a new metric, known as 'dominance certainty', which is a complimentary measure to dominance rank that assesses the degree of ambiguity of rank relationships at the individual, dyadic and group levels. In this focused review, we will (i) describe how Perc measures dominance rank while accounting for both nonlinear hierarchical structure as well as sparsity in data-here we also provide a metric of dominance certainty estimated by Perc, which can be used to compliment the information dominance rank supplies; (ii) summarize a series of studies by our research team reflecting the importance of 'dominance certainty' on individual and societal health in large captive rhesus macaque breeding groups; and (iii) provide some concluding remarks and suggestions for future directions for dominance hierarchy research. This article is part of the theme issue 'The centennial of the pecking order: current state and future prospects for the study of dominance hierarchies'.
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Affiliation(s)
- Brenda McCowan
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
- California National Primate Research Center, University of California, Davis, CA 95616, USA
| | - Jessica Vandeleest
- California National Primate Research Center, University of California, Davis, CA 95616, USA
| | - Krishna Balasubramaniam
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Fushing Hsieh
- Department of Statistics, University of California, Davis, CA 95616, USA
| | - Amy Nathman
- California National Primate Research Center, University of California, Davis, CA 95616, USA
| | - Brianne Beisner
- Colony Management Department, Yerkes National Primate Research Center Field Station, Lawrenceville, GA, USA
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27
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McMahon EK, Youatt E, Cavigelli SA. A physiological profile approach to animal temperament: How to understand the functional significance of individual differences in behaviour. Proc Biol Sci 2022; 289:20212379. [PMID: 35016542 PMCID: PMC8753167 DOI: 10.1098/rspb.2021.2379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/01/2021] [Indexed: 12/21/2022] Open
Abstract
Animal behaviour research has experienced a renewed interest in consistent individual differences (i.e. animal personality or temperament). Recent ecological studies have identified environmental conditions that give rise to the development and evolution of temperaments and to fitness-related outcomes of temperament. Additional literature has also described relationships between temperaments and physiological regulation. However, one-to-one relationships between one behavioural trait and one physiological system do not account for co-selection of behavioural and physiological traits, nor the complex signalling among physiological systems. In the current paper, we review the literature on multiple physiological processes associated with temperament, propose temperament-specific physiological profiles, and focus on next steps to understand the functional significance, evolution and maintenance of temperaments. We propose that to understand causes and consequences of temperament we need to characterize integrative physiological profiles associated with different temperaments.
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Affiliation(s)
- Elyse K. McMahon
- Ecology Graduate Program, Huck Institutes of the Life Sciences, Pennsylvania State University, 101 Life Sciences Building, University Park, PA 16802, USA
- Biobehavioral Health Department, 219 Biobehavioral Health Building, University Park, PA 16802, USA
| | - Elizabeth Youatt
- Psychology Department, Pennsylvania State University, 140 Moore Building, University Park, PA 16802, USA
| | - Sonia A. Cavigelli
- Biobehavioral Health Department, 219 Biobehavioral Health Building, University Park, PA 16802, USA
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28
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Rahal D, Fales MR, Haselton MG, Slavich GM, Robles TF. Cues of Social Status: Associations Between Attractiveness, Dominance, and Status. EVOLUTIONARY PSYCHOLOGY 2021; 19:14747049211056160. [PMID: 34870477 PMCID: PMC8982059 DOI: 10.1177/14747049211056160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Hierarchies naturally emerge in social species, and judgments of status in these hierarchies have consequences for social relationships and health. Although judgments of social status are shaped by appearance, the physical cues that inform judgments of status remain unclear. The transition to college presents an opportunity to examine judgments of social status in a newly developing social hierarchy. We examined whether appearances—as measured by raters’ judgments of photographs and videos—provide information about undergraduate students’ social status at their university and in society in Study 1. Exploratory analyses investigated whether associations differed by participants’ sex. Eighty-one first-year undergraduate students (Mage = 18.20, SD = 0.50; 64.2% female) provided photographs and videos and reported their social status relative to university peers and relative to other people in society. As hypothesized, when participants were judged to be more attractive and dominant they were also judged to have higher status. These associations were replicated in two additional samples of raters who evaluated smiling and neutral photographs from the Chicago Faces Database in Study 2. Multilevel models also revealed that college students with higher self-reported university social status were judged to have higher status, attractiveness, and dominance, although judgments were not related to self-reported society social status. Findings highlight that there is agreement between self-reports of university status and observer-perceptions of status based solely on photographs and videos, and suggest that appearance may shape newly developing social hierarchies, such as those that emerge during the transition to college.
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Affiliation(s)
- Danny Rahal
- Department of Psychology, 8783University of California, Los Angeles, CA, USA
| | - Melissa R Fales
- Department of Psychology, 8783University of California, Los Angeles, CA, USA
| | - Martie G Haselton
- Department of Psychology, 8783University of California, Los Angeles, CA, USA.,Institute for Society and Genetics, 8783University of California, Los Angeles, CA, USA.,Center for Behavior, Evolution, and Culture, 8783University of California, Los Angeles, CA, USA
| | - George M Slavich
- Cousins Center for Psychoneuroimmunology, 8783University of California, Los Angeles, CA, USA.,Department of Psychiatry and Biobehavioral Sciences, 8783University of California, Los Angeles, CA, USA
| | - Theodore F Robles
- Department of Psychology, 8783University of California, Los Angeles, CA, USA
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29
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Pandey A, Bloch G. Krüppel-homologue 1 Mediates Hormonally Regulated Dominance Rank in a Social Bee. BIOLOGY 2021; 10:biology10111188. [PMID: 34827180 PMCID: PMC8614866 DOI: 10.3390/biology10111188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 12/23/2022]
Abstract
Dominance hierarchies are ubiquitous in invertebrates and vertebrates, but little is known on how genes influence dominance rank. Our gaps in knowledge are specifically significant concerning female hierarchies, particularly in insects. To start filling these gaps, we studied the social bumble bee Bombus terrestris, in which social hierarchies among females are common and functionally significant. Dominance rank in this bee is influenced by multiple factors, including juvenile hormone (JH) that is a major gonadotropin in this species. We tested the hypothesis that the JH responsive transcription factor Krüppel homologue 1 (Kr-h1) mediates hormonal influences on dominance behavior. We first developed and validated a perfluorocarbon nanoparticles-based RNA interference protocol for knocking down Kr-h1 expression. We then used this procedure to show that Kr-h1 mediates the influence of JH, not only on oogenesis and wax production, but also on aggression and dominance rank. To the best of our knowledge, this is the first study causally linking a gene to dominance rank in social insects, and one of only a few such studies on insects or on female hierarchies. These findings are important for determining whether there are general molecular principles governing dominance rank across gender and taxa.
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Affiliation(s)
- Atul Pandey
- Department of Ecology, Evolution and Behavior, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA
- Correspondence: (A.P.); (G.B.)
| | - Guy Bloch
- Department of Ecology, Evolution and Behavior, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
- Correspondence: (A.P.); (G.B.)
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30
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Reddan MC. Recommendations for the Development of Socioeconomically-Situated and Clinically-Relevant Neuroimaging Models of Pain. Front Neurol 2021; 12:700833. [PMID: 34557144 PMCID: PMC8453079 DOI: 10.3389/fneur.2021.700833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/06/2021] [Indexed: 11/13/2022] Open
Abstract
Pain is a complex, multidimensional experience that emerges from interactions among sensory, affective, and cognitive processes in the brain. Neuroimaging allows us to identify these component processes and model how they combine to instantiate the pain experience. However, the clinical impact of pain neuroimaging models has been limited by inadequate population sampling - young healthy college students are not representative of chronic pain patients. The biopsychosocial approach to pain management situates a person's pain within the diverse socioeconomic environments they live in. To increase the clinical relevance of pain neuroimaging models, a three-fold biopsychosocial approach to neuroimaging biomarker development is recommended. The first level calls for the development of diagnostic biomarkers via the standard population-based (nomothetic) approach with an emphasis on diverse sampling. The second level calls for the development of treatment-relevant models via a constrained person-based (idiographic) approach tailored to unique individuals. The third level calls for the development of prevention-relevant models via a novel society-based (social epidemiologic) approach that combines survey and neuroimaging data to predict chronic pain risk based on one's socioeconomic conditions. The recommendations in this article address how we can leverage pain's complexity in service of the patient and society by modeling not just individuals and populations, but also the socioeconomic structures that shape any individual's expectations of threat, safety, and resource availability.
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Affiliation(s)
- Marianne C. Reddan
- Department of Psychology, Stanford University, Stanford, CA, United States
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31
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Uchida K, Ng R, Vydro SA, Smith JE, Blumstein DT. The benefits of being dominant: health correlates of male social rank and age in a marmot. Curr Zool 2021; 68:19-26. [PMID: 35169626 PMCID: PMC8836331 DOI: 10.1093/cz/zoab034] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/22/2021] [Indexed: 11/13/2022] Open
Abstract
Abstract
The benefits of dominance may not come without costs, particularly for males. For example, the “immunocompetence handicap hypothesis” states that males with enhanced mating success allocate resources to enhance reproductive output at a cost to their current health, whereas the “resource quality hypothesis” predicts that high-ranking males may benefit from increased reproduction and good health. Whereas the predictions from each have been well tested in captive animals and in a variety of highly social primates, fewer studies have been carried out in free-living, facultatively social animals. Using adult male yellow-bellied marmots (Marmota flaviventer), we evaluated predictions of these hypotheses by examining the relationship between social rank and 2 health indicators—fecal glucocorticoid metabolite (FCM) levels, and neutrophil/lymphocyte (N/L) ratios—after accounting for variation explained by age, body mass, and seasonality. We found that higher-ranking males tended to have a lower N/L ratio (reflecting good health) than lower-ranking individuals, whereas FCM levels were not significantly related to rank. In addition, heavier male marmots had lower N/L ratios, whereas body mass was not associated with FCM levels. We also found that older adult males had lower FCM levels (reflecting less physiological stress) but higher N/L ratios than younger adults. Finally, we found that FCM levels decreased as the active season progressed and FCM levels were associated with the time of the day. Overall, our results suggest that socially-dominant male marmots enjoyed better, not worse health in terms of lower N/L ratios.
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Affiliation(s)
- Kenta Uchida
- Department of Ecology & Evolutionary Biology, University of California, Los Angeles, CA 90095-1606, USA
| | - Rachel Ng
- Department of Ecology & Evolutionary Biology, University of California, Los Angeles, CA 90095-1606, USA
| | - Samuel A Vydro
- Department of Ecology & Evolutionary Biology, University of California, Los Angeles, CA 90095-1606, USA
| | - Jennifer E Smith
- Department of Ecology & Evolutionary Biology, University of California, Los Angeles, CA 90095-1606, USA
- Department of Biology, Mills College, Oakland, CA 94613, USA
| | - Daniel T Blumstein
- Department of Ecology & Evolutionary Biology, University of California, Los Angeles, CA 90095-1606, USA
- The Rocky Mountain Biological Laboratory, Crested Butte, CO 81224, USA
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32
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Affiliation(s)
- Nicole Bender
- Institute of Evolutionary Medicine University of Zurich Zurich Switzerland
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33
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Association between social factors and gastrointestinal parasite product excretion in a group of non-cooperatively breeding carrion crows. Behav Ecol Sociobiol 2021. [DOI: 10.1007/s00265-021-02967-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Sandel AA, Rushmore J, Negrey JD, Mitani JC, Lyons DM, Caillaud D. Social Network Predicts Exposure to Respiratory Infection in a Wild Chimpanzee Group. ECOHEALTH 2020; 17:437-448. [PMID: 33404931 PMCID: PMC7786864 DOI: 10.1007/s10393-020-01507-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 06/12/2023]
Abstract
Respiratory pathogens are expected to spread through social contacts, but outbreaks often occur quickly and unpredictably, making it challenging to simultaneously record social contact and disease incidence data, especially in wildlife. Thus, the role of social contacts in the spread of infectious disease is often treated as an assumption in disease simulation studies, and few studies have empirically demonstrated how pathogens spread through social networks. In July-August 2015, an outbreak of respiratory disease was observed in a wild chimpanzee community in Kibale National Park, Uganda, during an ongoing behavioral study of male chimpanzees, offering a rare opportunity to evaluate how social behavior affects individual exposure to socially transmissible diseases. From May to August 2015, we identified adult and adolescent male chimpanzees displaying coughs and rhinorrhea and recorded 5-m proximity data on males (N = 40). Using the network k-test, we found significant relationships between male network connectivity and the distribution of cases within the network, supporting the importance of short-distance contacts for the spread of the respiratory outbreak. Additionally, chimpanzees central to the network were more likely to display clinical signs than those with fewer connections. Although our analyses were limited to male chimpanzees, these findings underscore the value of social connectivity data in predicting disease outcomes and elucidate a potential evolutionary cost of being social.
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Affiliation(s)
- Aaron A Sandel
- Department of Anthropology, University of Texas at Austin, 2201 Speedway Stop C3200, Austin, TX, 78712, USA.
| | - Julie Rushmore
- One Health Institute, School of Veterinary Medicine, University of California, Davis, CA, USA
- Epicenter for Disease Dynamics, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Jacob D Negrey
- Department of Pathobiological Sciences, University of Wisconsin, Madison, WI, USA
| | - John C Mitani
- Department of Anthropology, University of Michigan, Ann Arbor, MI, USA
| | - Daniel M Lyons
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - Damien Caillaud
- Department of Anthropology, University of California, Davis, CA, USA
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35
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Levy EJ, Zipple MN, McLean E, Campos FA, Dasari M, Fogel AS, Franz M, Gesquiere LR, Gordon JB, Grieneisen L, Habig B, Jansen DJ, Learn NH, Weibel CJ, Altmann J, Alberts SC, Archie EA. A comparison of dominance rank metrics reveals multiple competitive landscapes in an animal society. Proc Biol Sci 2020; 287:20201013. [PMID: 32900310 PMCID: PMC7542799 DOI: 10.1098/rspb.2020.1013] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Across group-living animals, linear dominance hierarchies lead to disparities in access to resources, health outcomes and reproductive performance. Studies of how dominance rank predicts these traits typically employ one of several dominance rank metrics without examining the assumptions each metric makes about its underlying competitive processes. Here, we compare the ability of two dominance rank metrics—simple ordinal rank and proportional or ‘standardized’ rank—to predict 20 traits in a wild baboon population in Amboseli, Kenya. We propose that simple ordinal rank best predicts traits when competition is density-dependent, whereas proportional rank best predicts traits when competition is density-independent. We found that for 75% of traits (15/20), one rank metric performed better than the other. Strikingly, all male traits were best predicted by simple ordinal rank, whereas female traits were evenly split between proportional and simple ordinal rank. Hence, male and female traits are shaped by different competitive processes: males are largely driven by density-dependent resource access (e.g. access to oestrous females), whereas females are shaped by both density-independent (e.g. distributed food resources) and density-dependent resource access. This method of comparing how different rank metrics predict traits can be used to distinguish between different competitive processes operating in animal societies.
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Affiliation(s)
- Emily J Levy
- Department of Biology, Duke University, 130 Science Drive, Durham, NC 27708, USA
| | - Matthew N Zipple
- Department of Biology, Duke University, 130 Science Drive, Durham, NC 27708, USA
| | - Emily McLean
- Division of Natural Sciences and Mathematics, Oxford College of Emory University, 801 Emory Street, Oxford, GA 30054, USA
| | - Fernando A Campos
- Department of Biology, Duke University, 130 Science Drive, Durham, NC 27708, USA.,Department of Anthropology, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Mauna Dasari
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Arielle S Fogel
- Department of Evolutionary Anthropology, Duke University, 130 Science Drive, Durham, NC 27708, USA.,University Program in Genetics and Genomics, Duke University, 3 Genome Court, Durham, NC 27710, USA
| | - Mathias Franz
- Institute for Biology, Freie Universitaet Berlin, Königin-Luise-Strasse 1-3, D-14195 Berlin, Germany
| | - Laurence R Gesquiere
- Department of Biology, Duke University, 130 Science Drive, Durham, NC 27708, USA
| | - Jacob B Gordon
- Department of Biology, Duke University, 130 Science Drive, Durham, NC 27708, USA
| | - Laura Grieneisen
- College of Biological Sciences, University of Minnesota, 420 Washington Ave. SE, Minneapolis, MN 55455, USA
| | - Bobby Habig
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA.,Department of Biology, Queens College, City University of New York, 65-30 Kissena Blvd., Flushing, New York, NY 11367, USA
| | - David J Jansen
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Niki H Learn
- Department of Ecology and Evolutionary Biology, Princeton University, 106A Guyot Hall, Princeton, NJ 08544, USA
| | - Chelsea J Weibel
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Jeanne Altmann
- Department of Ecology and Evolutionary Biology, Princeton University, 106A Guyot Hall, Princeton, NJ 08544, USA.,Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
| | - Susan C Alberts
- Department of Biology, Duke University, 130 Science Drive, Durham, NC 27708, USA.,Department of Evolutionary Anthropology, Duke University, 130 Science Drive, Durham, NC 27708, USA.,Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
| | - Elizabeth A Archie
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA.,Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
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36
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Guerrero TP, Fickel J, Benhaiem S, Weyrich A. Epigenomics and gene regulation in mammalian social systems. Curr Zool 2020; 66:307-319. [PMID: 32440291 PMCID: PMC7233906 DOI: 10.1093/cz/zoaa005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 02/12/2020] [Indexed: 12/19/2022] Open
Abstract
Social epigenomics is a new field of research that studies how the social environment shapes the epigenome and how in turn the epigenome modulates behavior. We focus on describing known gene-environment interactions (GEIs) and epigenetic mechanisms in different mammalian social systems. To illustrate how epigenetic mechanisms integrate GEIs, we highlight examples where epigenetic mechanisms are associated with social behaviors and with their maintenance through neuroendocrine, locomotor, and metabolic responses. We discuss future research trajectories and open questions for the emerging field of social epigenomics in nonmodel and naturally occurring social systems. Finally, we outline the technological advances that aid the study of epigenetic mechanisms in the establishment of GEIs and vice versa.
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Affiliation(s)
- Tania P Guerrero
- Department Evolutionary Genetics, Leibniz-Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke-Str. 17, Berlin, D-10315, Germany
- Faculty of Environment and Natural Resources, Albert Ludwig University of Freiburg, Tennenbacher Str. 4, Freiburg, D-79085, Germany
| | - Jörns Fickel
- Department Evolutionary Genetics, Leibniz-Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke-Str. 17, Berlin, D-10315, Germany
- Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam, 14476, Germany
| | - Sarah Benhaiem
- Department Ecological Dynamics, Leibniz-Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke-Str. 17, Berlin, D-10315, Germany
| | - Alexandra Weyrich
- Department Evolutionary Genetics, Leibniz-Institute for Zoo and Wildlife Research (IZW), Alfred-Kowalke-Str. 17, Berlin, D-10315, Germany
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37
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Snyder-Mackler N, Burger JR, Gaydosh L, Belsky DW, Noppert GA, Campos FA, Bartolomucci A, Yang YC, Aiello AE, O'Rand A, Harris KM, Shively CA, Alberts SC, Tung J. Social determinants of health and survival in humans and other animals. Science 2020; 368:eaax9553. [PMID: 32439765 PMCID: PMC7398600 DOI: 10.1126/science.aax9553] [Citation(s) in RCA: 296] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 03/19/2020] [Indexed: 12/11/2022]
Abstract
The social environment, both in early life and adulthood, is one of the strongest predictors of morbidity and mortality risk in humans. Evidence from long-term studies of other social mammals indicates that this relationship is similar across many species. In addition, experimental studies show that social interactions can causally alter animal physiology, disease risk, and life span itself. These findings highlight the importance of the social environment to health and mortality as well as Darwinian fitness-outcomes of interest to social scientists and biologists alike. They thus emphasize the utility of cross-species analysis for understanding the predictors of, and mechanisms underlying, social gradients in health.
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Affiliation(s)
- Noah Snyder-Mackler
- Social and Biological Determinants of Health Working Group, NC, USA
- Department of Evolutionary Anthropology, Duke University, Durham, NC, USA
- Department of Psychology, University of Washington, Seattle, WA, USA
- Center for Evolution and Medicine, Arizona State University, Tempe, AZ, USA
| | - Joseph Robert Burger
- Social and Biological Determinants of Health Working Group, NC, USA
- Population Research Institute, Duke University, Durham, NC, USA
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
- Institute of the Environment, University of Arizona, Tucson, AZ, USA
| | - Lauren Gaydosh
- Social and Biological Determinants of Health Working Group, NC, USA
- Center for Medicine, Health, and Society, Vanderbilt University, Nashville, TN, USA
| | - Daniel W Belsky
- Social and Biological Determinants of Health Working Group, NC, USA
- Population Research Institute, Duke University, Durham, NC, USA
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
- Robert N. Butler Columbia Aging Center, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Grace A Noppert
- Social and Biological Determinants of Health Working Group, NC, USA
- Population Research Institute, Duke University, Durham, NC, USA
- Center for Population Health and Aging, Duke University, Durham, NC, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Center for the Study of Aging and Human Development, Duke University, Durham, NC, USA
| | - Fernando A Campos
- Social and Biological Determinants of Health Working Group, NC, USA
- Department of Biology, Duke University, Durham, NC, USA
- Department of Anthropology, University of Texas at San Antonio, San Antonio, TX, USA
| | - Alessandro Bartolomucci
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA
| | - Yang Claire Yang
- Social and Biological Determinants of Health Working Group, NC, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Sociology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Allison E Aiello
- Social and Biological Determinants of Health Working Group, NC, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Angela O'Rand
- Social and Biological Determinants of Health Working Group, NC, USA
- Population Research Institute, Duke University, Durham, NC, USA
- Center for Population Health and Aging, Duke University, Durham, NC, USA
| | - Kathleen Mullan Harris
- Social and Biological Determinants of Health Working Group, NC, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Sociology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Carol A Shively
- Social and Biological Determinants of Health Working Group, NC, USA
- Comparative Medicine Section, Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Susan C Alberts
- Social and Biological Determinants of Health Working Group, NC, USA
- Department of Evolutionary Anthropology, Duke University, Durham, NC, USA
- Population Research Institute, Duke University, Durham, NC, USA
- Center for Population Health and Aging, Duke University, Durham, NC, USA
- Department of Biology, Duke University, Durham, NC, USA
- Institute of Primate Research, Nairobi, Kenya
| | - Jenny Tung
- Social and Biological Determinants of Health Working Group, NC, USA.
- Department of Evolutionary Anthropology, Duke University, Durham, NC, USA
- Population Research Institute, Duke University, Durham, NC, USA
- Center for Population Health and Aging, Duke University, Durham, NC, USA
- Department of Biology, Duke University, Durham, NC, USA
- Institute of Primate Research, Nairobi, Kenya
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38
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Higham JP, Stahl-Hennig C, Heistermann M. Urinary suPAR: a non-invasive biomarker of infection and tissue inflammation for use in studies of large free-ranging mammals. ROYAL SOCIETY OPEN SCIENCE 2020; 7:191825. [PMID: 32257339 PMCID: PMC7062102 DOI: 10.1098/rsos.191825] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 01/17/2020] [Indexed: 06/11/2023]
Abstract
Studies of large free-ranging mammals incorporating physiological measurements typically require the collection of urine or faecal samples, due to ethical and practical concerns over trapping or darting animals. However, there is a dearth of validated biomarkers of immune activation and inflammation that can be measured non-invasively. We here evaluate the utility of urinary measurements of the soluble form of the urokinase plasminogen activator receptor (suPAR), for use as a health marker in studies of wild large mammals. We investigate how urinary suPAR concentrations change in response to viral infection and surgical trauma (inflammation), comparing it to the measurement of a marker of cellular immune activation, urinary neopterin (uNEO), in captive rhesus macaques. We then test the field utility of urinary suPAR, assessing the effects of soil and faecal contamination, sunlight, storage at different temperatures, freeze-thaw cycles, and lyophilization. We find that suPAR concentrations rise markedly in response to both infection and surgery-associated inflammation, unlike uNEO concentrations, which only rise in response to the former. Our field validation demonstrates that urinary suPAR is reasonably robust to many of the issues associated with field collection, sample processing, and storage, as long as samples can be stored in a freezer. Urinary suPAR is thus a promising biomarker applicable for monitoring various aspects of health in wild primates and potentially also other large mammals.
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Affiliation(s)
- James P. Higham
- Department of Anthropology, New York University, 25 Waverly Place, New York, NY 10003, USA
| | - Christiane Stahl-Hennig
- Unit of Infection Models, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, Göttingen 37077, Germany
| | - Michael Heistermann
- Endocrinology Laboratory, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, Göttingen 37077, Germany
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39
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Gesquiere LR, Habig B, Hansen C, Li A, Freid K, Learn NH, Alberts SC, Graham AL, Archie EA. Noninvasive measurement of mucosal immunity in a free-ranging baboon population. Am J Primatol 2020; 82:e23093. [PMID: 31930746 DOI: 10.1002/ajp.23093] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 11/20/2019] [Accepted: 12/20/2019] [Indexed: 12/15/2022]
Abstract
Ecoimmunological patterns and processes remain understudied in wild primates, in part because of the lack of noninvasive methods to measure immunity. Secretory immunoglobulin A (sIgA) is the most abundant antibody present at mammalian mucosal surfaces and provides an important first line of defense against pathogens. Recent studies show that sIgA can be measured noninvasively in feces and is a good marker of mucosal immunity. Here we validated a commercial ELISA kit to measure fecal IgA in baboons, tested the robustness of its results to variation in collection and storage conditions, and developed a cost-effective in-house ELISA for baboon fecal IgA. Using data from the custom ELISA, we assessed the relationship between fecal IgA concentrations and gastrointestinal parasite burden, and tested how sex, age, and reproductive effort predict fecal IgA in wild baboons. We find that IgA concentrations can be measured in baboon feces using an in-house ELISA and are highly correlated to the values obtained with a commercial kit. Fecal IgA concentrations are stable when extracts are stored for up to 22 months at -20°C. Fecal IgA concentrations were negatively correlated with parasite egg counts (Trichuris trichiura), but not parasite richness. Fecal IgA did not vary between the sexes, but for males, concentrations were higher in adults versus adolescents. Lactating females had significantly lower fecal IgA than pregnant females, but neither pregnant nor lactating female concentrations differed significantly from cycling females. Males who engaged in more mate-guarding exhibited similar IgA concentrations to those who engaged in little mate-guarding. These patterns may reflect the low energetic costs of mucosal immunity, or the complex dependence of IgA excretion on individual condition. Adding a noninvasive measure of mucosal immunity will promote a better understanding of how ecology modulates possible tradeoffs between the immune system and other energetically costly processes in the wild.
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Affiliation(s)
| | - Bobby Habig
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana
| | - Christina Hansen
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey
| | - Amanda Li
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey
| | - Kimberly Freid
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey
| | - Niki H Learn
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey
| | - Susan C Alberts
- Department of Biology, Duke University, Durham, North Carolina.,Institute of Primate Research, National Museums of Kenya, Nairobi, Kenya.,Department of Evolutionary Anthropology, Duke University, Durham, North Carolina
| | - Andrea L Graham
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey
| | - Elizabeth A Archie
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana.,Institute of Primate Research, National Museums of Kenya, Nairobi, Kenya
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40
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Fischer J, Higham JP, Alberts SC, Barrett L, Beehner JC, Bergman TJ, Carter AJ, Collins A, Elton S, Fagot J, Ferreira da Silva MJ, Hammerschmidt K, Henzi P, Jolly CJ, Knauf S, Kopp GH, Rogers J, Roos C, Ross C, Seyfarth RM, Silk J, Snyder-Mackler N, Staedele V, Swedell L, Wilson ML, Zinner D. Insights into the evolution of social systems and species from baboon studies. eLife 2019; 8:e50989. [PMID: 31711570 PMCID: PMC6850771 DOI: 10.7554/elife.50989] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 10/16/2019] [Indexed: 01/03/2023] Open
Abstract
Baboons, members of the genus Papio, comprise six closely related species distributed throughout sub-Saharan Africa and southwest Arabia. The species exhibit more ecological flexibility and a wider range of social systems than many other primates. This article summarizes our current knowledge of the natural history of baboons and highlights directions for future research. We suggest that baboons can serve as a valuable model for complex evolutionary processes, such as speciation and hybridization. The evolution of baboons has been heavily shaped by climatic changes and population expansion and fragmentation in the African savanna environment, similar to the processes that acted during human evolution. With accumulating long-term data, and new data from previously understudied species, baboons are ideally suited for investigating the links between sociality, health, longevity and reproductive success. To achieve these aims, we propose a closer integration of studies at the proximate level, including functional genomics, with behavioral and ecological studies.
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Affiliation(s)
- Julia Fischer
- Cognitive Ethology LaboratoryGerman Primate Center, Leibniz-Institute for Primate ResearchGöttingenGermany
- Department of Primate CognitionGeorg-August-University of GöttingenGöttingenGermany
- Leibniz ScienceCampus for Primate CognitionGöttingenGermany
| | - James P Higham
- Department of AnthropologyNew York UniversityNew YorkUnited States
| | - Susan C Alberts
- Department of BiologyDuke UniversityDurhamUnited States
- Department of Evolutionary AnthropologyDuke UniversityDurhamUnited States
- Institute of Primate ResearchNairobiKenya
| | - Louise Barrett
- Department of PsychologyUniversity of LethbridgeLethbridgeCanada
- Applied Behavioural Ecology and Ecosystems Research UnitUniversity of South AfricaPretoriaSouth Africa
| | - Jacinta C Beehner
- Department of PsychologyUniversity of MichiganAnn ArborUnited States
- Department of AnthropologyUniversity of MichiganAnn ArborUnited States
| | - Thore J Bergman
- Department of PsychologyUniversity of MichiganAnn ArborUnited States
- Department of AnthropologyUniversity of MichiganAnn ArborUnited States
| | - Alecia J Carter
- Institut des Sciences de l’Evolution de MontpellierMontpellierFrance
- Université de Montpellier, CNRS, IRD, EPHEMontpellierFrance
| | - Anthony Collins
- Gombe Stream Research CentreJane Goodall InstituteKigomaUnited Republic of Tanzania
| | - Sarah Elton
- Department of AnthropologyDurham UniversityDurhamUnited Kingdom
| | - Joël Fagot
- Aix Marseille UniversitéMarseilleFrance
- Centre National de la Recherche ScientifiqueMontpellierFrance
| | - Maria Joana Ferreira da Silva
- Organisms and Environment Division, School of BiosciencesCardiff UniversityCardiffUnited Kingdom
- Centro de Investigação em Biodiversidade e Recursos GenéticosUniversidade do PortoPortoPortugal
- Centro de Administração e Políticas Públicas, School of Social and PoliticalSciencesUniversity of LisbonLisbonPortugal
| | - Kurt Hammerschmidt
- Cognitive Ethology LaboratoryGerman Primate Center, Leibniz-Institute for Primate ResearchGöttingenGermany
| | - Peter Henzi
- Applied Behavioural Ecology and Ecosystems Research UnitUniversity of South AfricaPretoriaSouth Africa
| | - Clifford J Jolly
- Department of AnthropologyNew York UniversityNew YorkUnited States
- New York Consortium in Evolutionary PrimatologyNew YorkUnited States
| | - Sascha Knauf
- Work Group Neglected Tropical Diseases, Infection Biology UnitGerman Primate Center, Leibniz-Institute for Primate ResearchGöttingenGermany
- Division of Microbiology and Animal HygieneGeorg-August-UniversityGöttingenGermany
| | - Gisela H Kopp
- ZukunftskollegUniversity of KonstanzKonstanzGermany
- Department of BiologyUniversity of KonstanzKonstanzGermany
- Centre for the Advanced Study of Collective BehaviourUniversity of KonstanzKonstanzGermany
- Department of MigrationMax Planck Institute for Animal BehaviourKonstanzGermany
| | - Jeffrey Rogers
- Human Genome Sequencing CenterHoustonUnited States
- Department of Molecular and Human GeneticsBaylor College of MedicineHoustonUnited States
| | - Christian Roos
- Gene Bank of PrimatesGerman Primate Center, Leibniz-Institute for Primate ResearchGöttingenGermany
- Primate Genetics LaboratoryGerman Primate Center, Leibniz-Institute for Primate ResearchGöttingenGermany
| | - Caroline Ross
- Department of Life SciencesRoehampton UniversityLondonUnited Kingdom
| | - Robert M Seyfarth
- Department of PsychologyUniversity of PennsylvaniaPhiladelphiaUnited States
| | - Joan Silk
- School of Human Evolution and Social ChangeArizona State UniversityTempeUnited States
- Institute for Human OriginsArizona State UniversityTempeUnited States
| | - Noah Snyder-Mackler
- Department of PsychologyUniversity of WashingtonSeattleUnited States
- Center for Studies in Demography and EcologyUniversity of WashingtonSeattleUnited States
- National Primate Research CenteUniversity of WashingtonSeattleUnited States
| | - Veronika Staedele
- Department of BiologyDuke UniversityDurhamUnited States
- Max Planck Institute for Evolutionary AnthropologyLeipzigGermany
| | - Larissa Swedell
- New York Consortium in Evolutionary PrimatologyNew YorkUnited States
- Department of AnthropologyQueens College, City University of New YorkNew YorkUnited States
- Department of ArchaeologyUniversity of Cape TownCape TownSouth Africa
| | - Michael L Wilson
- Department of AnthropologyUniversity of MinnesotaMinneapolisUnited States
- Department of Ecology, Evolution and BehaviorUniversity of MinnesotaMinneapolisUnited States
- Institute on the EnvironmentUniversity of MinnesotaSaint PaulUnited States
| | - Dietmar Zinner
- Cognitive Ethology LaboratoryGerman Primate Center, Leibniz-Institute for Primate ResearchGöttingenGermany
- Leibniz ScienceCampus for Primate CognitionGöttingenGermany
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41
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Sen CK, Roy S. Sociogenomic Approach to Wound Care: A New Patient-Centered Paradigm. Adv Wound Care (New Rochelle) 2019; 8:523-526. [PMID: 31637098 DOI: 10.1089/wound.2019.1101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 09/13/2019] [Indexed: 12/15/2022] Open
Abstract
Psychoneuroendocrinology studies provided first insight into social determinants of wound healing. Social stressors impede wound healing. In 2005, we first reported that the transcriptome of wound-site neutrophil is highly responsive to psychological stress in young men. Bioinformatics processing of transcriptome-wide data from neutrophils provided first insight into social transduction pathways relevant to wound healing. In 2010, Idaghdour et al. presented striking evidence demonstrating that genetic factors are responsible for only 5% of the variation in genomic expression. In contrast, the living environment of the individual, urban or rural, was responsible for as much as 50% of such variation. Genetic and environmental factors acted in a largely additive manner. This observation may be credited as the foundation stone of human social genomics. The environment of a patient, including social factors, influences gene expression relevant to wound healing. The nonhealing wound itself and its worsening outcome, including pain, are likely to cause stress. Conversely, positive social interactions may circumvent barriers to wound healing. Thus, interventions directed at the social environment of a wound care patient are likely to help manage wound chronicity. The genomic and related Big Data technology platforms have vastly improved during the past 5 years during which these technologies have also become widely accessible and affordable. Thus, this is the right time to revisit the choice of technologies for the study of social genomics of wound healing. Against the backdrop of our current understanding of the mechanisms of wound healing, such precision approach is likely to transform wound care and its outcomes making it patient-centered and, therefore, more effective.
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Affiliation(s)
- Chandan K. Sen
- The Indiana University Health Comprehensive Wound Center, Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Sashwati Roy
- The Indiana University Health Comprehensive Wound Center, Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana
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42
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Hamilton RA, Borcuch T, Allen SJ, Cioffi WR, Bucci V, Krützen M, Connor RC. Male aggression varies with consortship rate and habitat in a dolphin social network. Behav Ecol Sociobiol 2019. [DOI: 10.1007/s00265-019-2753-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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43
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Holmes L, Chinaka C, Elmi H, Deepika K, Pelaez L, Enwere M, Akinola OT, Dabney KW. Implication of Spiritual Network Support System in Epigenomic Modulation and Health Trajectory. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E4123. [PMID: 31717711 PMCID: PMC6862316 DOI: 10.3390/ijerph16214123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 12/16/2022]
Abstract
With challenges in understanding the multifactorial etiologies of disease and individual treatment effect heterogeneities over the past four decades, much has been acquired on how physical, chemical and social environments affect human health, predisposing certain subpopulations to adverse health outcomes, especially the socio-environmentally disadvantaged (SED). Current translational data on gene and adverse environment interaction have revealed how adverse gene-environment interaction, termed aberrant epigenomic modulation, translates into impaired gene expression via messenger ribonucleic acid (mRNA) dysregulation, reflecting abnormal protein synthesis and hence dysfunctional cellular differentiation and maturation. The environmental influence on gene expression observed in most literature includes physical, chemical, physicochemical and recently social environment. However, data are limited on spiritual or religious environment network support systems, which reflect human psychosocial conditions and gene interaction. With this limited information, we aimed to examine the available data on spiritual activities characterized by prayers and meditation for a possible explanation of the nexus between the spiritual network support system (SNSS) as a component of psychosocial conditions, implicated in social signal transduction, and the gene expression correlate. With the intent to incorporate SNSS in human psychosocial conditions, we assessed the available data on bereavement, loss of spouse, loneliness, social isolation, low socio-economic status (SES), chronic stress, low social status, social adversity (SA) and early life stress (ELS), as surrogates for spiritual support network connectome. Adverse human psychosocial conditions have the tendency for impaired gene expression through an up-regulated conserved transcriptional response to adversity (CTRA) gene expression via social signal transduction, involving the sympathetic nervous system (SNS), beta-adrenergic receptors, the hypothalamus-pituitary-adrenal (HPA) axis and the glucocorticoid response. This review specifically explored CTRA gene expression and the nuclear receptor subfamily 3 group C member 1 (NR3C1) gene, a glucocorticoid receptor gene, in response to stress and the impaired negative feedback, given allostatic overload as a result of prolonged and sustained stress and social isolation as well as the implied social interaction associated with religiosity. While more remains to be investigated on psychosocial and immune cell response and gene expression, current data on human models do implicate appropriate gene expression via the CTRA and NR3C1 gene in the SNSS as observed in meditation, yoga and thai-chi, implicated in malignant neoplasm remission. However, prospective epigenomic studies in this context are required in the disease causal pathway, prognosis and survival, as well as cautious optimism in the application of these findings in clinical and public health settings, due to unmeasured and potential confoundings implicated in these correlations.
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Affiliation(s)
- Laurens Holmes
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
- Biological Sciences Department, University of Delaware, Newark, DE 19716, USA
- College of Population Health, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Chinacherem Chinaka
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
- Public Health Department, Eastern Virginia Medical School, Norfolk, VA 23507, USA
- Community and Environmental Health Department, Old Dominion University, Norfolk, VA 23507, USA
| | - Hikma Elmi
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
| | - Kerti Deepika
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
| | - Lavisha Pelaez
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
| | - Michael Enwere
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
- Public Health Department, Walden University, Minneapolis, MN 55401, USA
| | - Olumuyiwa T. Akinola
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
- Public Health Department, Eastern Virginia Medical School, Norfolk, VA 23507, USA
- Community and Environmental Health Department, Old Dominion University, Norfolk, VA 23507, USA
| | - Kirk W. Dabney
- Nemours Children’s Healthcare System, Nemours Office of Health Equity and Inclusion, Wilmington, DE 19803, USA; (C.C.); (H.E.); (K.D.); (L.P.); (M.E.); (O.T.A.); (K.W.D.)
- Sidney Kimmel Medical School, Thomas Jefferson University, Philadelphia, PA 19107, USA
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44
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Habig B, Jansen DAWAM, Akinyi MY, Gesquiere LR, Alberts SC, Archie EA. Multi-scale predictors of parasite risk in wild male savanna baboons (Papio cynocephalus). Behav Ecol Sociobiol 2019. [DOI: 10.1007/s00265-019-2748-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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Preis A, Samuni L, Deschner T, Crockford C, Wittig RM. Urinary Cortisol, Aggression, Dominance and Competition in Wild, West African Male Chimpanzees. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00107] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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46
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Schoenle LA, Zimmer C, Vitousek MN. Understanding Context Dependence in Glucocorticoid-Fitness Relationships: The Role of the Nature of the Challenge, the Intensity and Frequency of Stressors, and Life History. Integr Comp Biol 2019; 58:777-789. [PMID: 29889246 DOI: 10.1093/icb/icy046] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
It has been well-established that there is variation in the strength and direction of the relationship between circulating glucocorticoids (GCs) and fitness. When studies demonstrate such variation or the direction of the GC-fitness relationship is unexpected, the results are often attributed to context-dependency. However, descriptors of context can be vague (e.g., "environmental context") and few studies explicitly test how the optimal hypothalamic-pituitary-adrenal (HPA) axis response to stressors varies across specific contexts. Although existing hypotheses create a strong foundation for understanding GC-fitness relationships, many do not provide explicit predictions of how, when, and why the relationships will change. Here, we discuss three broad factors which we expect to shape the relationships between HPA axis activity and fitness metrics: (1) whether the HPA axis-mediated response matches the challenge, (2) the intensity and frequency of challenges, and (3) life history. We also make predictions for how these factors might affect GC-fitness relationships and discuss ways to test these predictions. Observational studies, experimental manipulations of context, and large-scale cross-species comparisons will be critical to understanding the observed variation in GC-fitness relationships.
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Affiliation(s)
- Laura A Schoenle
- Department of Global Health, University of South Florida, Tampa, FL 33620, USA.,Department of Biology, Hamilton College, Clinton, NY 13323, USA
| | - Cedric Zimmer
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
| | - Maren N Vitousek
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA.,Cornell Lab of Ornithology, Ithaca, NY 14850, USA
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Is There a Link Between Matriline Dominance Rank and Linear Enamel Hypoplasia? An Assessment of Defect Prevalence and Count in Cayo Santiago Rhesus Macaques (Macaca mulatta). INT J PRIMATOL 2019. [DOI: 10.1007/s10764-019-00084-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Human Immunology through the Lens of Evolutionary Genetics. Cell 2019; 177:184-199. [DOI: 10.1016/j.cell.2019.02.033] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 01/04/2023]
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49
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Lea AJ, Akinyi MY, Nyakundi R, Mareri P, Nyundo F, Kariuki T, Alberts SC, Archie EA, Tung J. Dominance rank-associated gene expression is widespread, sex-specific, and a precursor to high social status in wild male baboons. Proc Natl Acad Sci U S A 2018; 115:E12163-E12171. [PMID: 30538194 PMCID: PMC6310778 DOI: 10.1073/pnas.1811967115] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In humans and other hierarchical species, social status is tightly linked to variation in health and fitness-related traits. Experimental manipulations of social status in female rhesus macaques suggest that this relationship is partially explained by status effects on immune gene regulation. However, social hierarchies are established and maintained in different ways across species: While some are based on kin-directed nepotism, others emerge from direct physical competition. We investigated how this variation influences the relationship between social status and immune gene regulation in wild baboons, where hierarchies in males are based on fighting ability but female hierarchies are nepotistic. We measured rank-related variation in gene expression levels in adult baboons of both sexes at baseline and in response to ex vivo stimulation with the bacterial endotoxin lipopolysaccharide (LPS). We identified >2,000 rank-associated genes in males, an order of magnitude more than in females. In males, high status predicted increased expression of genes involved in innate immunity and preferential activation of the NF-κB-mediated proinflammatory pathway, a pattern previously associated with low status in female rhesus macaques. Using Mendelian randomization, we reconcile these observations by demonstrating that high status-associated gene expression patterns are precursors, not consequences, of high social status in males, in support of the idea that physiological condition determines who attains high rank. Together, our work provides a test of the relationship between social status and immune gene regulation in wild primates. It also emphasizes the importance of social context in shaping the relationship between social status and immune function.
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Affiliation(s)
- Amanda J Lea
- Department of Biology, Duke University, Durham, NC 27708;
| | - Mercy Y Akinyi
- Department of Biology, Duke University, Durham, NC 27708
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
| | - Ruth Nyakundi
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
| | - Peter Mareri
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
| | - Fred Nyundo
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
| | - Thomas Kariuki
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
| | - Susan C Alberts
- Department of Biology, Duke University, Durham, NC 27708
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708
| | - Elizabeth A Archie
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556
| | - Jenny Tung
- Department of Biology, Duke University, Durham, NC 27708;
- Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708
- Duke University Population Research Institute, Duke University, Durham, NC 27708
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50
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Social status alters chromatin accessibility and the gene regulatory response to glucocorticoid stimulation in rhesus macaques. Proc Natl Acad Sci U S A 2018; 116:1219-1228. [PMID: 30538209 PMCID: PMC6347725 DOI: 10.1073/pnas.1811758115] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Low social status is an important predictor of disease susceptibility and mortality risk in humans and other social mammals. These effects are thought to stem in part from dysregulation of the glucocorticoid (GC)-mediated stress response. However, the molecular mechanisms that connect low social status and GC dysregulation to downstream health outcomes remain elusive. Here, we used an in vitro GC challenge to investigate the consequences of experimentally manipulated social status (i.e., dominance rank) for immune cell gene regulation in female rhesus macaques, using paired control and GC-treated peripheral blood mononuclear cell samples. We show that social status not only influences immune cell gene expression but also chromatin accessibility at hundreds of regions in the genome. Social status effects on gene expression were less pronounced following GC treatment than under control conditions. In contrast, social status effects on chromatin accessibility were stable across conditions, resulting in an attenuated relationship between social status, chromatin accessibility, and gene expression after GC exposure. Regions that were more accessible in high-status animals and regions that become more accessible following GC treatment were enriched for a highly concordant set of transcription factor binding motifs, including motifs for the GC receptor cofactor AP-1. Together, our findings support the hypothesis that social status alters the dynamics of GC-mediated gene regulation and identify chromatin accessibility as a mechanism involved in social stress-driven GC resistance. More broadly, they emphasize the context-dependent nature of social status effects on gene regulation and implicate epigenetic remodeling of chromatin accessibility as a contributing factor.
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