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Sallet J, Emberton A, Wood J, Rushworth M. Impact of internal and external factors on prosocial choices in rhesus macaques. Philos Trans R Soc Lond B Biol Sci 2021; 376:20190678. [PMID: 33423628 PMCID: PMC7815427 DOI: 10.1098/rstb.2019.0678] [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: 12/22/2022] Open
Abstract
While traditional economic models assume that agents are self-interested, humans and most non-human primates are social species. Therefore, many of decisions they make require the integration of information about other social agents. This study asks to what extent information about social status and the social context in which decisions are taken impact on reward-guided decisions in rhesus macaques. We tested 12 monkeys of varying dominance status in several experimental versions of a two-choice task in which reward could be delivered to self only, only another monkey, both the self and another monkey, or neither. Results showed dominant animals were more prone to make prosocial choices than subordinates, but only when the decision was between a reward for self only and a reward for both self and other. If the choice was between a reward for self only and a reward for other only, no animal expressed altruistic behaviour. Finally, prosocial choices were true social decisions as they were strikingly reduced when the social partner was replaced by a non-social object. These results showed that as in humans, rhesus macaques' social decisions are adaptive and modulated by social status and the cost associated with being prosocial. This article is part of the theme issue 'Existence and prevalence of economic behaviours among non-human primates'.
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Affiliation(s)
- Jérôme Sallet
- Wellcome Integrative Neuroimaging Centre, Department of Experimental Psychology, Oxford, OX1 3SR, UK.,Univ Lyon, Université Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, Bron, France
| | - Andrew Emberton
- Biomedical Sciences Services, University of Oxford, Oxford, OX1 3SR, UK
| | - Jessica Wood
- Biomedical Sciences Services, University of Oxford, Oxford, OX1 3SR, UK
| | - Matthew Rushworth
- Wellcome Integrative Neuroimaging Centre, Department of Experimental Psychology, Oxford, OX1 3SR, UK
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102
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Johnson CSC, Shively C, Michalson KT, Lea AJ, DeBo RJ, Howard TD, Hawkins GA, Appt SE, Liu Y, McCall CE, Herrington DM, Ip EH, Register TC, Snyder-Mackler N. Contrasting effects of Western vs Mediterranean diets on monocyte inflammatory gene expression and social behavior in a primate model. eLife 2021; 10:68293. [PMID: 34338633 PMCID: PMC8423447 DOI: 10.7554/elife.68293] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/28/2021] [Indexed: 01/20/2023] Open
Abstract
Dietary changes associated with industrialization increase the prevalence of chronic diseases, such as obesity, type II diabetes, and cardiovascular disease. This relationship is often attributed to an 'evolutionary mismatch' between human physiology and modern nutritional environments. Western diets enriched with foods that were scarce throughout human evolutionary history (e.g. simple sugars and saturated fats) promote inflammation and disease relative to diets more akin to ancestral human hunter-gatherer diets, such as a Mediterranean diet. Peripheral blood monocytes, precursors to macrophages and important mediators of innate immunity and inflammation, are sensitive to the environment and may represent a critical intermediate in the pathway linking diet to disease. We evaluated the effects of 15 months of whole diet manipulations mimicking Western or Mediterranean diet patterns on monocyte polarization in a well-established model of human health, the cynomolgus macaque (Macaca fascicularis). Monocyte transcriptional profiles differed markedly between diets, with 40% of transcripts showing differential expression (FDR < 0.05). Monocytes from Western diet consumers were polarized toward a more proinflammatory phenotype. The Western diet shifted the co-expression of 445 gene pairs, including small RNAs and transcription factors associated with metabolism and adiposity in humans, and dramatically altered behavior. For example, Western-fed individuals were more anxious and less socially integrated. These behavioral changes were also associated with some of the effects of diet on gene expression, suggesting an interaction between diet, central nervous system activity, and monocyte gene expression. This study provides new molecular insights into an evolutionary mismatch and uncovers new pathways through which Western diets alter monocyte polarization toward a proinflammatory phenotype.
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Affiliation(s)
- Corbin SC Johnson
- Department of Psychology, University of WashingtonSeattleUnited States
| | - Carol Shively
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Kristofer T Michalson
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Amanda J Lea
- Lewis-Sigler Institute for Integrative Genomics, Princeton UniversityPrincetonUnited States,Department of Ecology and Evolutionary Biology, Princeton UniversityPrincetonUnited States
| | - Ryne J DeBo
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Timothy D Howard
- Department of Biochemistry, Wake Forest School of MedicineWinston-SalemUnited States
| | - Gregory A Hawkins
- Department of Biochemistry, Wake Forest School of MedicineWinston-SalemUnited States
| | - Susan E Appt
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Yongmei Liu
- Division of Cardiology, Duke University School of MedicineDurhamUnited States
| | - Charles E McCall
- Department of Internal Medicine, Section of Molecular Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - David M Herrington
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Edward H Ip
- Department of Biostatistics and Data Science, Wake Forest School of MedicineWinston-SalemUnited States
| | - Thomas C Register
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Noah Snyder-Mackler
- Department of Psychology, University of WashingtonSeattleUnited States,Center for Studies in Demography and Ecology, University of WashingtonSeattleUnited States,Department of Biology, University of WashingtonSeattleUnited States,School of Life Sciences, Arizona State UniversityTempeUnited States,Center for Evolution & Medicine, Arizona State UniversityTempeUnited States
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103
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Smith CJ, Bilbo SD. Sickness and the Social Brain: Love in the Time of COVID. Front Psychiatry 2021; 12:633664. [PMID: 33692712 PMCID: PMC7937950 DOI: 10.3389/fpsyt.2021.633664] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/26/2021] [Indexed: 12/11/2022] Open
Abstract
As a highly social species, inclusion in social networks and the presence of strong social bonds are critical to our health and well-being. Indeed, impaired social functioning is a component of numerous neuropsychiatric disorders including depression, anxiety, and substance use disorder. During the current COVID-19 pandemic, our social networks are at risk of fracture and many are vulnerable to the negative consequences of social isolation. Importantly, infection itself leads to changes in social behavior as a component of "sickness behavior." Furthermore, as in the case of COVID-19, males and females often differ in their immunological response to infection, and, therefore, in their susceptibility to negative outcomes. In this review, we discuss the many ways in which infection changes social behavior-sometimes to the benefit of the host, and in some instances for the sake of the pathogen-in species ranging from eusocial insects to humans. We also explore the neuroimmune mechanisms by which these changes in social behavior occur. Finally, we touch upon the ways in which the social environment (group living, social isolation, etc.) shapes the immune system and its ability to respond to challenge. Throughout we emphasize how males and females differ in their response to immune activation, both behaviorally and physiologically.
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Affiliation(s)
- Caroline J Smith
- Department of Psychology and Neuroscience, Duke University, Durham, NC, United States
| | - Staci D Bilbo
- Department of Psychology and Neuroscience, Duke University, Durham, NC, United States
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104
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Tamura K, Vijayakumar NP, Troendle JF, Curlin K, Neally SJ, Mitchell VM, Collins BS, Baumer Y, Gutierrez-Huerta CA, Islam R, Turner BS, Andrews MR, Ceasar JN, Claudel SE, Tippey KG, Giuliano S, McCoy R, Zahurak J, Lambert S, Moore PJ, Douglas-Brown M, Wallen GR, Dodge T, Powell-Wiley TM. Multilevel mobile health approach to improve cardiovascular health in resource-limited communities with Step It Up: a randomised controlled trial protocol targeting physical activity. BMJ Open 2020; 10:e040702. [PMID: 33371027 PMCID: PMC7754642 DOI: 10.1136/bmjopen-2020-040702] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Although physical activity (PA) reduces cardiovascular disease (CVD) risk, physical inactivity remains a pressing public health concern, especially among African American (AA) women in the USA. PA interventions focused on AA women living in resource-limited communities with scarce PA infrastructure are needed. Mobile health (mHealth) technology can increase access to PA interventions. We describe the development of a clinical protocol for a multilevel, community-based, mHealth PA intervention for AA women. METHODS AND ANALYSIS An mHealth intervention targeting AA women living in resource-limited Washington, DC communities was developed based on the socioecological framework for PA. Over 6 months, we will use a Sequential Multi-Assignment, Randomized Trial approach to compare the effects on PA of location-based remote messaging (named 'tailored-to-place') to standard remote messaging in an mHealth intervention. Participants will be randomised to a remote messaging intervention for 3 months, at which point the intervention strategy will adapt based on individuals' PA levels. Those who do not meet the PA goal will be rerandomised to more intensive treatment. Participants will be followed for another 3 months to determine the contribution of each mHealth intervention to PA level. This protocol will use novel statistical approaches to account for the adaptive strategy. Finally, effects of PA changes on CVD risk biomarkers will be characterised. ETHICS AND DISSEMINATION This protocol has been developed in partnership with a Washington, DC-area community advisory board to ensure feasibility and acceptability to community members. The National Institutes of Health Intramural IRB approved this research and the National Heart, Lung, and Blood Institute provided funding. Once published, results of this work will be disseminated to community members through presentations at community advisory board meetings and our quarterly newsletter. TRIAL REGISTRATION NUMBER NCT03288207.
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Affiliation(s)
- Kosuke Tamura
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Nithya P Vijayakumar
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - James F Troendle
- Office of Biostatistics Research, Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Kaveri Curlin
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Sam J Neally
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Valerie M Mitchell
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Billy S Collins
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Yvonne Baumer
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Cristhian A Gutierrez-Huerta
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Rafique Islam
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Briana S Turner
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Marcus R Andrews
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Joniqua N Ceasar
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Sophie E Claudel
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Kathryn G Tippey
- University of North Carolina, Nutrition Obesity Research Center, Lineberger Comprehensive Cancer Center, Connected Health Applications and Interventions (CHAI) Core, Chapel Hill, North Carolina, USA
| | - Shayne Giuliano
- University of North Carolina, Nutrition Obesity Research Center, Lineberger Comprehensive Cancer Center, Connected Health Applications and Interventions (CHAI) Core, Chapel Hill, North Carolina, USA
| | - Regina McCoy
- University of North Carolina, Nutrition Obesity Research Center, Lineberger Comprehensive Cancer Center, Connected Health Applications and Interventions (CHAI) Core, Chapel Hill, North Carolina, USA
| | - Jessica Zahurak
- University of North Carolina, Nutrition Obesity Research Center, Lineberger Comprehensive Cancer Center, Connected Health Applications and Interventions (CHAI) Core, Chapel Hill, North Carolina, USA
| | - Sharon Lambert
- Department of Psychological and Brain Sciences, George Washington University, Washington, District of Columbia, USA
| | - Philip J Moore
- Department of Psychological and Brain Sciences, George Washington University, Washington, District of Columbia, USA
| | | | - Gwenyth R Wallen
- National Institutes of Health Clinical Center, Nursing Department, Bethesda, Maryland, USA
| | - Tonya Dodge
- Department of Psychological and Brain Sciences, George Washington University, Washington, District of Columbia, USA
| | - Tiffany M Powell-Wiley
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
- Intramural Research Program, National Institute on Minority Health and Health Disparities, National Institutes of Health, Bethesda, Maryland, USA
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105
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Vernasco BJ, Dakin R, Majer AD, Haussmann MF, Brandt Ryder T, Moore IT. Longitudinal dynamics and behavioural correlates of telomeres in male wire‐tailed manakins. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13715] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ben J. Vernasco
- Department of Biological Sciences Virginia Tech Blacksburg VA USA
| | - Roslyn Dakin
- Migratory Bird Center Smithsonian Conservation Biology Institute Washington DC USA
| | | | | | - T. Brandt Ryder
- Migratory Bird Center Smithsonian Conservation Biology Institute Washington DC USA
| | - Ignacio T. Moore
- Department of Biological Sciences Virginia Tech Blacksburg VA USA
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106
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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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107
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Borland JM, Kim E, Swanson SP, Rothwell PE, Mermelstein PG, Meisel RL. Effect of Aggressive Experience in Female Syrian Hamsters on Glutamate Receptor Expression in the Nucleus Accumbens. Front Behav Neurosci 2020; 14:583395. [PMID: 33328919 PMCID: PMC7719767 DOI: 10.3389/fnbeh.2020.583395] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/30/2020] [Indexed: 12/26/2022] Open
Abstract
Our social relationships determine our health and well-being. In rodent models, there is now strong support for the rewarding properties of aggressive or assertive behaviors to be critical for the expression and development of adaptive social relationships, buffering from stress and protecting from the development of psychiatric disorders such as depression. However, due to the false belief that aggression is not a part of the normal repertoire of social behaviors displayed by females, almost nothing is known about the neural mechanisms mediating the rewarding properties of aggression in half the population. In the following study, using Syrian hamsters as a well-validated and translational model of female aggression, we investigated the effects of aggressive experience on the expression of markers of postsynaptic structure (PSD-95, Caskin I) and excitatory synaptic transmission (GluA1, GluA2, GluA4, NR2A, NR2B, mGluR1a, and mGluR5) in the nucleus accumbens (NAc), caudate putamen and prefrontal cortex. Aggressive experience resulted in an increase in PSD-95, GluA1 and the dimer form of mGluR5 specifically in the NAc 24 h following aggressive experience. There was also an increase in the dimer form of mGluR1a 1 week following aggressive experience. Aggressive experience also resulted in an increase in the strength of the association between these postsynaptic proteins and glutamate receptors, supporting a common mechanism of action. In addition, 1 week following aggressive experience there was a positive correlation between the monomer of mGluR5 and multiple AMPAR and NMDAR subunits. In conclusion, we provide evidence that aggressive experience in females results in an increase in the expression of postsynaptic density, AMPARs and group I metabotropic glutamate receptors, and an increase in the strength of the association between postsynaptic proteins and glutamate receptors. This suggests that aggressive experience may result in an increase in excitatory synaptic transmission in the NAc, potentially encoding the rewarding and behavioral effects of aggressive interactions.
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Affiliation(s)
- Johnathan M. Borland
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
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108
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Emery Thompson M, Rosati AG, Snyder-Mackler N. Insights from evolutionarily relevant models for human ageing. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190605. [PMID: 32951550 PMCID: PMC7540954 DOI: 10.1098/rstb.2019.0605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2020] [Indexed: 02/07/2023] Open
Abstract
As the world confronts the health challenges of an ageing population, there has been dramatically increased interest in the science of ageing. This research has overwhelmingly focused on age-related disease, particularly in industrialized human populations and short-lived laboratory animal models. However, it has become clear that humans and long-lived primates age differently than many typical model organisms, and that many of the diseases causing death and disability in the developed world are greatly exacerbated by modern lifestyles. As such, research on how the human ageing process evolved is vital to understanding the origins of prolonged human lifespan and factors increasing vulnerability to degenerative disease. In this issue, we highlight emerging comparative research on primates, highlighting the physical, physiological, behavioural and cognitive processes of ageing. This work comprises data and theory on non-human primates, as well as under-represented data on humans living in small-scale societies, which help elucidate how environment shapes senescence. Component papers address (i) the critical processes that comprise senescence in long-lived primates; (ii) the social, ecological or individual characteristics that predict variation in the pace of ageing; and (iii) the complicated relationship between ageing trajectories and disease outcomes. Collectively, this work provides essential comparative, evolutionary data on ageing and demonstrates its unique potential to inform our understanding of the human ageing process. This article is part of the theme issue 'Evolution of the primate ageing process'.
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Affiliation(s)
- Melissa Emery Thompson
- Department of Anthropology, University of New Mexico, 500 University Boulevard NE, Albuquerque, NM 87131, USA
| | - Alexandra G. Rosati
- Department of Psychology and Anthropology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109, USA
| | - Noah Snyder-Mackler
- Center for Evolution and Medicine, Arizona State University, 427 East Tyler Mall, Tempe, AZ 85281, USA
- School of Life Sciences, Arizona State University, 427 East Tyler Mall, Tempe, AZ 85281, USA
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109
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Baumer Y, Farmer N, Premeaux TA, Wallen GR, Powell-Wiley TM. Health Disparities in COVID-19: Addressing the Role of Social Determinants of Health in Immune System Dysfunction to Turn the Tide. Front Public Health 2020; 8:559312. [PMID: 33134238 PMCID: PMC7578341 DOI: 10.3389/fpubh.2020.559312] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 08/31/2020] [Indexed: 12/28/2022] Open
Abstract
It is evident that health disparities exist during the COVID-19 pandemic, a pandemic caused by the novel coronavirus SARS-CoV-2. Underlying reasons for COVID-19 health disparities are multi-factorial. However, social determinants, including those regarding socioeconomic status, social inequalities, health behaviors, and stress, may have implications on these disparities. Exposure to one or more of these social determinants is associated with heightened inflammatory responses, particularly increases in the cytokine interleukin-6 (IL-6), as well as immune system dysfunction. Thus, an amplified effect during COVID-19 could occur, potentially resulting in vulnerable patients experiencing an intensified cytokine storm due to a hyperactive and dysfunctional immune response. Further understanding how social determinants play a mechanistic role in COVID-19 disparities could potentially help reduce health disparities overall and in future pandemics.
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Affiliation(s)
- Yvonne Baumer
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Nicole Farmer
- National Institutes of Health, Clinical Center, Bethesda, MD, United States
| | - Thomas A. Premeaux
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Gwenyth R. Wallen
- National Institutes of Health, Clinical Center, Bethesda, MD, United States
| | - Tiffany M. Powell-Wiley
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
- Intramural Research Program, National Institute on Minority Health and Health Disparities, Bethesda, MD, United States
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110
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Gelaye B, Foster S, Bhasin M, Tawakol A, Fricchione G. SARS-CoV-2 morbidity and mortality in racial/ethnic minority populations: A window into the stress related inflammatory basis of health disparities? Brain Behav Immun Health 2020; 9:100158. [PMID: 33052326 PMCID: PMC7543984 DOI: 10.1016/j.bbih.2020.100158] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022] Open
Abstract
Health disparity related to race/ethnicity has been cited as “the most serious and shameful health care issue of our time”(Peterson et al., 2018). A portion of the now recognized disproportionate impact of the COVID-19 pandemic among Black, Indigenous and People of Color (BIPOC) communities is attributable to social determinants such as socioeconomic status (SES), physical living situation, health care access, and the psychosocial factors associated with socioenvironmental circumstances such as bias, victimization, trauma and toxic stress as well as structural factors that reduce the capacity to practice physical distancing (Agurs-Collins et al., 2019). In this paper, we hypothesize that, prior to the COVID-19 pandemic, disproportionate socio-economic and environmental stressors in the BIPOC population promoted heightened stress-associated neurobiological activity (Stress-NbA). This chronic elevation in Stress-NbA results in down-stream complications of chronic stress including underactivation of anti-viral type I IFN pathway genes. This results in an increase in susceptibility to viral diseases, including coronavirus illnesses. Additionally, Stress-NbA chronically potentiates systemic inflammation (from hematopoietic system activation with myelopoiesis) increasing the prevalence of metabolic syndrome (MetS) and setting the stage for stress-related chronic non-communicable diseases (NCDs). This process was propelled by overactivation of immune cell gene expression in the nuclear factor κ-light-chain-enhancer of activated B cells (NF-kB) activation pathway and underactivation of gene expression in the anti-viral type I interferon (IFN) pathway. The higher prevalence of MetS and NCDs in minority populations turned out to be predictive of the elevated risk they would face in the presence of a highly contagious viral pandemic. The stress-related generation of a chronic non-pathogen associated molecular pattern (non-PAMP) immunoactivation state led to decreased viral immune defense and increased susceptibility to SARS-CoV-2 infection with increased risk of severe illness induced by cytokine storm syndrome (CSS). There is a disproportionate impact of the COVID-19 pandemic among Black, Indigenous and People of Color (BIPOC) communities. Prior to the COVID-19 pandemic and during the pandemic, existing disproportionate structural, socio-economic and environmental stressors in the BIPOC communities may have resulted in heightened stress-associated neurobiological activity (Stress-NbA). In this paper, we hypothesize that a combination of chronic elevation of stress-NbA, systemic inflammation, stress response and immune response related factors aligned against BIPIC communities are potential drivers of excess morbidity and mortality.
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Affiliation(s)
- Bizu Gelaye
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.,Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Simmie Foster
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Manoj Bhasin
- Department of Pediatrics and Department of Biomedical Bioinformatics, Emory University School of Medicine, Atlanta, GA, United States
| | - Ahmed Tawakol
- Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Gregory Fricchione
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.,Benson-Henry Institute for Mind Body Medicine at Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
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111
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Lea AJ, Martins D, Kamau J, Gurven M, Ayroles JF. Urbanization and market integration have strong, nonlinear effects on cardiometabolic health in the Turkana. SCIENCE ADVANCES 2020; 6:eabb1430. [PMID: 33087362 PMCID: PMC7577730 DOI: 10.1126/sciadv.abb1430] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 09/04/2020] [Indexed: 05/11/2023]
Abstract
The "mismatch" between evolved human physiology and Western lifestyles is thought to explain the current epidemic of cardiovascular disease (CVD) in industrialized societies. However, this hypothesis has been difficult to test because few populations concurrently span ancestral and modern lifestyles. To address this gap, we collected interview and biomarker data from individuals of Turkana ancestry who practice subsistence-level, nomadic pastoralism (the ancestral way of life for this group), as well as individuals who no longer practice pastoralism and live in urban areas. We found that Turkana who move to cities exhibit poor cardiometabolic health, partially because of a shift toward "Western diets" high in refined carbohydrates. We also show that being born in an urban area independently predicts adult health, such that life-long city dwellers will experience the greatest CVD risk. By focusing on a substantial lifestyle gradient, our work thus informs the timing, magnitude, and evolutionary causes of CVD.
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Affiliation(s)
- Amanda J Lea
- Department of Ecology and Evolution, Princeton University, Princeton, NJ, USA
- Lewis Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA
| | - Dino Martins
- Department of Ecology and Evolution, Princeton University, Princeton, NJ, USA
- Mpala Research Centre, Nanyuki, Kenya
| | - Joseph Kamau
- Department of Biochemistry, School of Medicine, University of Nairobi, Nairobi, Kenya
- Institute of Primate Research, National Museums of Kenya, Nairobi, Kenya
| | - Michael Gurven
- Department of Anthropology, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - Julien F Ayroles
- Department of Ecology and Evolution, Princeton University, Princeton, NJ, USA.
- Lewis Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA
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112
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Arnold NS, Noren Hooten N, Zhang Y, Lehrmann E, Wood W, Camejo Nunez W, Thorpe RJ, Evans MK, Dluzen DF. The association between poverty and gene expression within peripheral blood mononuclear cells in a diverse Baltimore City cohort. PLoS One 2020; 15:e0239654. [PMID: 32970748 PMCID: PMC7514036 DOI: 10.1371/journal.pone.0239654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 09/08/2020] [Indexed: 01/13/2023] Open
Abstract
Socioeconomic status (SES), living in poverty, and other social determinants of health contribute to health disparities in the United States. African American (AA) men living below poverty in Baltimore City have a higher incidence of mortality when compared to either white males or AA females living below poverty. Previous studies in our laboratory and elsewhere suggest that environmental conditions are associated with differential gene expression (DGE) patterns in peripheral blood mononuclear cells (PBMCs). DGE have also been associated with hypertension and cardiovascular disease (CVD) and correlate with race and sex. However, no studies have investigated how poverty status associates with DGE between male and female AAs and whites living in Baltimore City. We examined DGE in 52 AA and white participants of the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) cohort, who were living above or below 125% of the 2004 federal poverty line at time of sample collection. We performed a microarray to assess DGE patterns in PBMCs from these participants. AA males and females living in poverty had the most genes differentially-expressed compared with above poverty controls. Gene ontology (GO) analysis identified unique and overlapping pathways related to the endosome, single-stranded RNA binding, long-chain fatty-acyl-CoA biosynthesis, toll-like receptor signaling, and others within AA males and females living in poverty and compared with their above poverty controls. We performed RT-qPCR to validate top differentially-expressed genes in AA males. We found that KLF6, DUSP2, RBM34, and CD19 are expressed at significantly lower levels in AA males in poverty and KCTD12 is higher compared to above poverty controls. This study serves as an additional link to better understand the gene expression response in peripheral blood mononuclear cells in those living in poverty.
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Affiliation(s)
- Nicole S. Arnold
- Department of Biology, Morgan State University, Baltimore, MD, United States of America
| | - Nicole Noren Hooten
- Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States of America
| | - Yongqing Zhang
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States of America
| | - Elin Lehrmann
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States of America
| | - William Wood
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States of America
| | - Wendy Camejo Nunez
- Department of Biology, Morgan State University, Baltimore, MD, United States of America
| | - Roland J. Thorpe
- Program for Research on Men’s Health, Hopkins Center for Health Disparities Solutions, Johns Hopkins University, Baltimore, MD, United States of America
| | - Michele K. Evans
- Laboratory of Epidemiology and Population Science, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States of America
| | - Douglas F. Dluzen
- Department of Biology, Morgan State University, Baltimore, MD, United States of America
- * E-mail:
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113
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Chiou KL, Montague MJ, Goldman EA, Watowich MM, Sams SN, Song J, Horvath JE, Sterner KN, Ruiz-Lambides AV, Martínez MI, Higham JP, Brent LJN, Platt ML, Snyder-Mackler N. Rhesus macaques as a tractable physiological model of human ageing. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190612. [PMID: 32951555 DOI: 10.1098/rstb.2019.0612] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Research in the basic biology of ageing is increasingly identifying mechanisms and modifiers of ageing in short-lived organisms such as worms and mice. The ultimate goal of such work is to improve human health, particularly in the growing segment of the population surviving into old age. Thus far, few interventions have robustly transcended species boundaries in the laboratory, suggesting that changes in approach are needed to avoid costly failures in translational human research. In this review, we discuss both well-established and alternative model organisms for ageing research and outline how research in nonhuman primates is sorely needed, first, to translate findings from short-lived organisms to humans, and second, to understand key aspects of ageing that are unique to primate biology. We focus on rhesus macaques as a particularly promising model organism for ageing research owing to their social and physiological similarity to humans as well as the existence of key resources that have been developed for this species. As a case study, we compare gene regulatory signatures of ageing in the peripheral immune system between humans and rhesus macaques from a free-ranging study population in Cayo Santiago. We show that both mRNA expression and DNA methylation signatures of immune ageing are broadly shared between macaques and humans, indicating strong conservation of the trajectory of ageing in the immune system. We conclude with a review of key issues in the biology of ageing for which macaques and other nonhuman primates may uniquely contribute valuable insights, including the effects of social gradients on health and ageing. We anticipate that continuing research in rhesus macaques and other nonhuman primates will play a critical role in conjunction with the model organism and human biodemographic research in ultimately improving translational outcomes and extending health and longevity in our ageing population. This article is part of the theme issue 'Evolution of the primate ageing process'.
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Affiliation(s)
- Kenneth L Chiou
- Department of Psychology, University of Washington, Seattle, WA 98195, USA.,Department of Pathology, Nathan Shock Center of Excellence in the Basic Biology of Aging, University of Washington, Seattle, WA 98195, USA.,Center for Evolution and Medicine, Arizona State University, Tempe, AZ 85281, USA
| | - Michael J Montague
- Department of Neuroscience, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | - Marina M Watowich
- Department of Biology, University of Washington, Seattle, WA 98195, USA
| | - Sierra N Sams
- Department of Psychology, University of Washington, Seattle, WA 98195, USA
| | - Jeff Song
- Department of Biological and Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA
| | - Julie E Horvath
- Department of Biological and Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA.,Research and Collections Section, North Carolina Museum of Natural Sciences, Raleigh, NC 27601, USA.,Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695, USA.,Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA
| | - Kirstin N Sterner
- Department of Anthropology, University of Oregon, Eugene, OR 97403, USA
| | - Angelina V Ruiz-Lambides
- Caribbean Primate Research Center, Unit of Comparative Medicine, University of Puerto Rico, San Juan, PR 00936, USA
| | - Melween I Martínez
- Caribbean Primate Research Center, Unit of Comparative Medicine, University of Puerto Rico, San Juan, PR 00936, USA
| | - James P Higham
- Department of Anthropology, New York University, New York, NY 10003, USA.,New York Consortium in Evolutionary Primatology, New York, NY, USA
| | - Lauren J N Brent
- Centre for Research in Animal Behaviour, University of Exeter, Exeter EX4 4QG, UK
| | - Michael L Platt
- Department of Neuroscience, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Marketing, Wharton School of Business, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Noah Snyder-Mackler
- Department of Psychology, University of Washington, Seattle, WA 98195, USA.,Department of Pathology, Nathan Shock Center of Excellence in the Basic Biology of Aging, University of Washington, Seattle, WA 98195, USA.,Department of Biology, University of Washington, Seattle, WA 98195, USA.,Center for Studies in Demography and Ecology, University of Washington, Seattle, WA 98195, USA.,Center for Evolution and Medicine, Arizona State University, Tempe, AZ 85281, USA.,School of Life Sciences, Arizona State University, Tempe, AZ 85281, USA
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114
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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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115
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Abstract
The cumulative science linking stress to negative health outcomes is vast. Stress can affect health directly, through autonomic and neuroendocrine responses, but also indirectly, through changes in health behaviors. In this review, we present a brief overview of (a) why we should be interested in stress in the context of health; (b) the stress response and allostatic load; (c) some of the key biological mechanisms through which stress impacts health, such as by influencing hypothalamic-pituitary-adrenal axis regulation and cortisol dynamics, the autonomic nervous system, and gene expression; and (d) evidence of the clinical relevance of stress, exemplified through the risk of infectious diseases. The studies reviewed in this article confirm that stress has an impact on multiple biological systems. Future work ought to consider further the importance of early-life adversity and continue to explore how different biological systems interact in the context of stress and health processes.
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Affiliation(s)
- Daryl B O'Connor
- School of Psychology, University of Leeds, Leeds LS2 9JT, United Kingdom;
| | - Julian F Thayer
- Department of Psychological Science, School of Social Ecology, University of California, Irvine, California 92697, USA;
| | - Kavita Vedhara
- Division of Primary Care, School of Medicine, University of Nottingham, Nottingham NG7 2UH, United Kingdom;
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116
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Ahmed S, Lawrence A. PATHOGENESIS OF FIBROMYALGIA IN PATIENTS WITH AUTOIMMUNE DISEASES: SCOPING REVIEW FOR HYPOTHESIS GENERATION. CENTRAL ASIAN JOURNAL OF MEDICAL HYPOTHESES AND ETHICS 2020. [DOI: 10.47316/cajmhe.2020.1.1.06] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Introduction: Fibromyalgia (FM) prevalence is much higher in patients with other rheumatic diseases than in the general population. This leads to increase in the perceived disease activity scores and prevents patients from reaching remission. Elucidating the pathogenesis of such “secondary” FM can help alleviate some unmet needs in these diseases.
Methods: MEDLINE and Scopus databases were searched for a scoping review for hypothesis generation regarding the genesis of secondary FM.
Results: FM has been postulated to be due to cytokine dysfunction, neurogenic neuroinflammation, stress, including social defeat, sleep disturbances, sympathetic overactivity, and small fibre neuropathy. These factors increase in most autoimmune and autoinflammatory diseases. Further the evidence for the role of these factors in the pathogenesis of FM is seems strong. Metabolic syndrome and mitochondrial dysfunction are also associated with FM, but it is difficult to distinguish between cause and effect.
Conclusion: FM is the common phenotype arising from the amalgamation of various aetiologies. Recruitment or amplification of the above 6 factors by various rheumatic diseases may thus lead precipitation of secondary FM in susceptible individuals.
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117
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D'Acquisto F, Hamilton A. Cardiovascular and immunological implications of social distancing in the context of COVID-19. Cardiovasc Res 2020; 116:e129-e131. [PMID: 32638025 PMCID: PMC7454335 DOI: 10.1093/cvr/cvaa167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Fulvio D'Acquisto
- Department of Life Sciences, University of Roehampton, London, UK.,William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Alice Hamilton
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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118
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Housman G, Gilad Y. Prime time for primate functional genomics. Curr Opin Genet Dev 2020; 62:1-7. [PMID: 32544775 DOI: 10.1016/j.gde.2020.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 12/14/2022]
Abstract
Functional genomics research is continually improving our understanding of genotype-phenotype relationships in humans, and comparative genomics perspectives can provide additional insight into the evolutionary histories of such relationships. To specifically identify conservation or species-specific divergence in humans, we must look to our closest extant evolutionary relatives. Primate functional genomics research has been steadily advancing and expanding, in spite of several limitations and challenges that this field faces. New technologies and cheaper sequencing provide a unique opportunity to enhance and expand primate comparative studies, and we outline possible paths going forward. The potential human-specific insights that can be gained from primate functional genomics research are substantial, and we propose that now is a prime time to expand such endeavors.
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Affiliation(s)
- Genevieve Housman
- Section of Genetic Medicine, Department of Medicine, University of Chicago, 5841 S. Maryland Ave., N417, MC6091, Chicago, IL 60637 USA.
| | - Yoav Gilad
- Section of Genetic Medicine, Department of Medicine, University of Chicago, 5841 S. Maryland Ave., N417, MC6091, Chicago, IL 60637 USA; Department of Human Genetics, University of Chicago, Cummings Life Science Center, 928 E. 58th St., Chicago, IL 60637 USA
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119
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Abstract
Lower socioeconomic status (SES) is a determinant of many of the health problems that emerge at older ages. The extent to which lower SES is associated with faster decline in age-related functions and phenotypes independently of health conditions is less clear. This study demonstrates that lower SES (defined by wealth) is related to accelerated decline over 6 to 8 y in 16 outcomes from physical, sensory, physiological, cognitive, emotional, and social domains, independently of diagnosed health conditions, self-rated health, education, and other factors. It provides evidence for the pervasive role of social circumstances on core aging processes and suggests that less affluent sectors of society age more rapidly than more privileged groups. Aging involves decline in a range of functional abilities and phenotypes, many of which are also associated with socioeconomic status (SES). Here we assessed whether lower SES is a determinant of the rate of decline over 8 y in six domains—physical capability, sensory function, physiological function, cognitive performance, emotional well-being, and social function—in a sample of 5,018 men and women aged 64.44 (SD 8.49) y on average at baseline. Wealth was used as the marker of SES, and all analyses controlled for age, gender, ethnicity, educational attainment, and long-term health conditions. Lower SES was associated with greater adverse changes in physical capability (grip strength, gait speed, and physical activity), sensory function (sight impairment), physiological function (plasma fibrinogen concentration and lung function), cognitive performance (memory, executive function, and processing speed), emotional well-being (enjoyment of life and depressive symptoms), and social function (organizational membership, number of close friends, volunteering, and cultural engagement). Effects were maintained when controlling statistically for other factors such as smoking, marital/partnership status, and self-rated health and were also present when analyses were limited to participants aged ≤75 y. We conclude that lower SES is related to accelerated aging across a broad range of functional abilities and phenotypes independently of the presence of health conditions and that social circumstances impinge on multiple aspects of aging.
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120
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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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121
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Anderson JA, Vilgalys TP, Tung J. Broadening primate genomics: new insights into the ecology and evolution of primate gene regulation. Curr Opin Genet Dev 2020; 62:16-22. [PMID: 32569794 PMCID: PMC7483836 DOI: 10.1016/j.gde.2020.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 12/17/2022]
Abstract
Comparative analyses have played a key role in understanding how gene regulatory evolution contributes to primate phenotypic diversity. Recently, these studies have expanded to include a wider range of species, within-population as well as interspecific analyses, and research on wild as well as captive individuals. This expansion provides context for understanding genetic and environmental effects on gene regulation in humans, including the importance of the pathogen and social environments. Although taxonomic representation remains biased, inclusion of more species has also begun to reveal the evolutionary processes that explain whether and when gene regulation is conserved. Together, this work highlights how studies in other primates contribute to understanding evolution in our own lineage, and we conclude by identifying promising avenues for future work.
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Affiliation(s)
- Jordan A Anderson
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA
| | - Tauras P Vilgalys
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA; Department of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, 60637, USA
| | - Jenny Tung
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA; Department of Biology, Duke University, Durham, NC 27708, USA; Institute of Primate Research, National Museums of Kenya, Nairobi 00502, Kenya; Duke Population Research Institute, Duke University, Durham, NC 27708, USA.
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122
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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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Tawakol A, Osborne MT, Wang Y, Hammed B, Tung B, Patrich T, Oberfeld B, Ishai A, Shin LM, Nahrendorf M, Warner ET, Wasfy J, Fayad ZA, Koenen K, Ridker PM, Pitman RK, Armstrong KA. Stress-Associated Neurobiological Pathway Linking Socioeconomic Disparities to Cardiovascular Disease. J Am Coll Cardiol 2020; 73:3243-3255. [PMID: 31248544 DOI: 10.1016/j.jacc.2019.04.042] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/11/2019] [Accepted: 04/10/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND Lower socioeconomic status (SES) associates with a higher risk of major adverse cardiac events (MACE) via mechanisms that are not well understood. OBJECTIVES Because psychosocial stress is more prevalent among those with low SES, this study tested the hypothesis that stress-associated neurobiological pathways involving up-regulated inflammation in part mediate the link between lower SES and MACE. METHODS A total of 509 individuals, median age 55 years (interquartile range: 45 to 66 years), underwent clinically indicated whole-body 18F-fluorodeoxyglucose positron emission tomography/computed tomography imaging and met pre-defined inclusion criteria, including absence of known cardiovascular disease or active cancer. Baseline hematopoietic tissue activity, arterial inflammation, and in a subset of 289, resting amygdalar metabolism (a measure of stress-associated neural activity) were quantified using validated 18F-fluorodeoxyglucose positron emission tomography/computed tomography methods. SES was captured by neighborhood SES factors (e.g., median household income and crime). MACE within 5 years of imaging was adjudicated. RESULTS Over a median 4.0 years, 40 individuals experienced MACE. Baseline income inversely associated with amygdalar activity (standardized β: -0.157 [95% confidence interval (CI): -0.266 to -0.041]; p = 0.007) and arterial inflammation (β: -0.10 [95% CI: -0.18 to -0.14]; p = 0.022). Further, income associated with subsequent MACE (standardized hazard ratio: 0.67 [95% CI: 0.47 to 0.96]; p = 0.029) after multivariable adjustments. Mediation analysis demonstrated that the path of: ↓ neighborhood income to ↑ amygdalar activity to ↑ bone marrow activity to ↑ arterial inflammation to ↑ MACE was significant (β: -0.01 [95% CI: -0.06 to -0.001]; p < 0.05). CONCLUSIONS Lower SES: 1) associates with higher amygdalar activity; and 2) independently predicts MACE via a serial pathway that includes higher amygdalar activity, bone marrow activity, and arterial inflammation. These findings illuminate a stress-associated neurobiological mechanism by which SES disparities may potentiate adverse health outcomes.
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Affiliation(s)
- Ahmed Tawakol
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
| | - Michael T Osborne
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ying Wang
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Department of Nuclear Medicine, the First Hospital of China Medical University, Heping District, Shenyang, China
| | - Basma Hammed
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Brian Tung
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Tomas Patrich
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Blake Oberfeld
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Amorina Ishai
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Lisa M Shin
- Department of Psychology, Tufts University, Medford, Massachusetts
| | - Matthias Nahrendorf
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Erica T Warner
- Clinical Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jason Wasfy
- Cardiology Division, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Zahi A Fayad
- Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Karestan Koenen
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Paul M Ridker
- Cardiology Division, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Roger K Pitman
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Katrina A Armstrong
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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124
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Zhao J, Li G, Lu W, Huang S, Zhang Z. Dominant and Subordinate Relationship Formed by Repeated Social Encounters Alters Gut Microbiota in Greater Long-Tailed Hamsters. MICROBIAL ECOLOGY 2020; 79:998-1010. [PMID: 31807860 DOI: 10.1007/s00248-019-01462-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 11/08/2019] [Indexed: 06/10/2023]
Abstract
Social stress can dramatically influence the health of animals via communication between gut microbiota and the HPA system. However, this effect has been rarely investigated among different social ranked animals after chronic repeated social encounters. In this study, we evaluated changes and differences in microbiota among control, dominant, and subordinate male greater long-tailed hamsters (Tscherskia triton) over 28 successive days of repeated social encounter. Our results indicated that as compared with the control group, short-term repeated social encounters significantly altered fecal microbiota of subordinate hamsters, while chronic repeated social encounters altered colonic mucosa-associated microbiota of both dominant and subordinate hamsters. Fecal microbiota showed a transition in composition and diversity on day 2 for the subordinate group but on day 4 for the control and dominant groups under repeated encounters. Compared with their baseline, genus Lactobacillus increased in both dominant and subordinate groups, while genus Bifidobacterium increased in the subordinate group and genus Adlercreutzia increased in the dominant group. Our results suggest that chronic repeated social encounter can alter diversity and composition of gut microbiota of hamsters in both feces and colonic mucosa, but the latter performed better in reflecting the effects of chronic stress on microbiota in this species. Future studies should focus on elucidating how these microbiota alterations may affect animal behavior and fitness.
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Affiliation(s)
- Jidong Zhao
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Guoliang Li
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Wei Lu
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Shuli Huang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Zhibin Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
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125
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Grogan KE, Perry GH. Studying human and nonhuman primate evolutionary biology with powerful in vitro and in vivo functional genomics tools. Evol Anthropol 2020; 29:143-158. [PMID: 32142200 PMCID: PMC10574139 DOI: 10.1002/evan.21825] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/18/2019] [Accepted: 02/06/2020] [Indexed: 12/19/2022]
Abstract
In recent years, tools for functional genomic studies have become increasingly feasible for use by evolutionary anthropologists. In this review, we provide brief overviews of several exciting in vitro techniques that can be paired with "-omics" approaches (e.g., genomics, epigenomics, transcriptomics, proteomics, and metabolomics) for potentially powerful evolutionary insights. These in vitro techniques include ancestral protein resurrection, cell line experiments using primary, immortalized, and induced pluripotent stem cells, and CRISPR-Cas9 genetic manipulation. We also discuss how several of these methods can be used in vivo, for transgenic organism studies of human and nonhuman primate evolution. Throughout this review, we highlight example studies in which these approaches have already been used to inform our understanding of the evolutionary biology of modern and archaic humans and other primates while simultaneously identifying future opportunities for anthropologists to use this toolkit to help answer additional outstanding questions in evolutionary anthropology.
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Affiliation(s)
- Kathleen E. Grogan
- Department of Anthropology, Pennsylvania State University, University Park, PA 16802
- Department of Biology, Pennsylvania State University, University Park, PA 16802
| | - George H. Perry
- Department of Anthropology, Pennsylvania State University, University Park, PA 16802
- Department of Biology, Pennsylvania State University, University Park, PA 16802
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802
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126
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Schubauer-Berigan MK, Dahm MM, Toennis CA, Sammons DL, Eye T, Kodali V, Zeidler-Erdely PC, Erdely A. Association of occupational exposures with ex vivo functional immune response in workers handling carbon nanotubes and nanofibers. Nanotoxicology 2020; 14:404-419. [PMID: 32031476 PMCID: PMC7121920 DOI: 10.1080/17435390.2020.1717007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 12/12/2019] [Accepted: 01/11/2020] [Indexed: 12/19/2022]
Abstract
The objective of this study was to evaluate the association between carbon nanotube and nanofiber (CNT/F) exposure and ex vivo responses of whole blood challenged with secondary stimulants, adjusting for potential confounders, in a cross-sectional study of 102 workers. Multi-day exposure was measured by CNT/F structure count (SC) and elemental carbon (EC) air concentrations. Demographic, lifestyle and other occupational covariate data were obtained via questionnaire. Whole blood collected from each participant was incubated for 18 hours with and without two microbial stimulants (lipopolysaccharide/LPS and staphylococcal enterotoxin type B/SEB) using TruCulture technology to evaluate immune cell activity. Following incubation, supernatants were preserved and analyzed for protein concentrations. The stimulant:null response ratio for each individual protein was analyzed using multiple linear regression, followed by principal component (PC) analysis to determine whether patterns of protein response were related to CNT/F exposure. Adjusting for confounders, CNT/F metrics (most strongly, the SC-based) were significantly (p < 0.05) inversely associated with stimulant:null ratios of several individual biomarkers: GM-CSF, IFN-γ, interleukin (IL)-2, IL-4, IL-5, IL-10, IL-17, and IL-23. CNT/F metrics were significantly inversely associated with PC1 (a weighted mean of most biomarkers, explaining 25% of the variance in the protein ratios) and PC2 (a biomarker contrast, explaining 14%). Among other occupational exposures, only solvent exposure was significant (inversely related to PC2). CNT/F exposure metrics were uniquely related to stimulant responses in challenged whole blood, illustrating reduced responsiveness to a secondary stimulus. This approach, if replicated in other exposed populations, may present a relatively sensitive method to evaluate human response to CNT/F or other occupational exposures.
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Affiliation(s)
- Mary K. Schubauer-Berigan
- National Institute for Occupational Safety and Health (NIOSH) Division of Field Studies and Engineering, Cincinnati, OH, USA
- Current address: International Agency for Research on Cancer, Evidence Synthesis and Classification Section; Lyon, France
| | - Matthew M. Dahm
- National Institute for Occupational Safety and Health (NIOSH) Division of Field Studies and Engineering, Cincinnati, OH, USA
| | | | | | - Tracy Eye
- NIOSH Health Effects Laboratory Division, Morgantown, WV, USA
| | - Vamsi Kodali
- NIOSH Health Effects Laboratory Division, Morgantown, WV, USA
| | | | - Aaron Erdely
- NIOSH Health Effects Laboratory Division, Morgantown, WV, USA
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127
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Strauss ED, Shizuka D, Holekamp KE. Juvenile rank acquisition is associated with fitness independent of adult rank. Proc Biol Sci 2020; 287:20192969. [PMID: 32126950 DOI: 10.1098/rspb.2019.2969] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Social rank is a significant determinant of fitness in a variety of species. The importance of social rank suggests that the process by which juveniles come to establish their position in the social hierarchy is a critical component of development. Here, we use the highly predictable process of rank acquisition in spotted hyenas to study the consequences of variation in rank acquisition in early life. In spotted hyenas, rank is 'inherited' through a learning process called 'maternal rank inheritance.' This pattern is very consistent: approximately 80% of juveniles acquire the exact rank expected under the rules of maternal rank inheritance. The predictable nature of rank acquisition in these societies allows the process of rank acquisition to be studied independently from the ultimate rank that each juvenile attains. In this study, we use Elo-deviance scores, a novel application of the Elo-rating method, to calculate each juvenile's deviation from the expected pattern of maternal rank inheritance during development. Despite variability in rank acquisition among juveniles, most of these juveniles come to attain the exact rank expected of them according to the rules of maternal rank inheritance. Nevertheless, we find that transient variation in rank acquisition in early life is associated with long-term fitness consequences for these individuals: juveniles 'underperforming' their expected ranks show reduced survival and lower lifetime reproductive success than better-performing peers, and this relationship is independent of both maternal rank and rank achieved in adulthood. We also find that multiple sources of early life adversity have cumulative, but not compounding, effects on fitness. Future work is needed to determine if variation in rank acquisition directly affects fitness, or if some other variable, such as maternal investment or juvenile condition, causes variation in both of these outcomes.
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Affiliation(s)
- Eli D Strauss
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA.,Program in Ecology, Evolutionary Biology, and Behavior, Michigan State University, East Lansing, MI, USA.,BEACON Center for the Study of Evolution in Action, Michigan State University, East Lansing, MI, USA.,School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Daizaburo Shizuka
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Kay E Holekamp
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA.,Program in Ecology, Evolutionary Biology, and Behavior, Michigan State University, East Lansing, MI, USA.,BEACON Center for the Study of Evolution in Action, Michigan State University, East Lansing, MI, USA
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128
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Jasinska AJ, Pandrea I, He T, Benjamin C, Newton M, Lee JC, Freimer NB, Coppola G, Jentsch JD. Immunosuppressive effect and global dysregulation of blood transcriptome in response to psychosocial stress in vervet monkeys (Chlorocebus sabaeus). Sci Rep 2020; 10:3459. [PMID: 32103041 PMCID: PMC7044305 DOI: 10.1038/s41598-020-59934-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/03/2020] [Indexed: 11/09/2022] Open
Abstract
Psychosocial stressors - life events that challenge social support and relationships - represent powerful risk factors for human disease; included amongst these events are relocation, isolation and displacement. To evaluate the impact of a controlled psychosocial stressor on physiology and underlying molecular pathways, we longitudinally studied the influence of a 28-day period of quarantine on biomarkers of immune signalling, microbial translocation, glycaemic health and blood transcriptome in the wild-born vervet monkey. This event caused a coordinated, mostly transient, reduction of circulating levels of nine immune signalling molecules. These were paralleled by a massive dysregulation of blood transcriptome, including genes implicated in chronic pathologies and immune functions. Immune and inflammatory functions were enriched among the genes downregulated in response to stress. An upregulation of genes involved in blood coagulation, platelet activation was characteristic of the rapid response to stress induction. Stress also decreased neutrophils and increased CD4 + T cell proportions in blood. This model of psychosocial stress, characterised by an immune dysregulation at the transcriptomic, molecular and cellular levels, creates opportunities to uncover the underlying mechanisms of stress-related diseases with an immune component, including cardiovascular diseases and susceptibility to infections.
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Affiliation(s)
- Anna J Jasinska
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA.
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland.
| | - Ivona Pandrea
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Tianyu He
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Cassandra Benjamin
- St. Kitts Biomedical Research Foundation, St. Kitts, West Indies, Saint Kitts and Nevis
| | - Maurice Newton
- St. Kitts Biomedical Research Foundation, St. Kitts, West Indies, Saint Kitts and Nevis
| | - Jen Chieh Lee
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA
| | - Nelson B Freimer
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA
| | - Giovanni Coppola
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA
- Department of Neurology, The University of California Los Angeles, California, USA
| | - James D Jentsch
- Department of Psychology, Binghamton University, Binghamton, NY, 13902, USA
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129
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Social experience and sex-dependent regulation of aggression in the lateral septum by extrasynaptic δGABA A receptors. Psychopharmacology (Berl) 2020; 237:329-344. [PMID: 31691846 PMCID: PMC7024004 DOI: 10.1007/s00213-019-05368-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 09/22/2019] [Indexed: 10/25/2022]
Abstract
RATIONALE Understanding the neurobiological mechanisms mediating dominance and competitive aggression is essential to understanding the development and treatment of various psychiatric disorders. Previous research suggests that these mechanisms are both sexually differentiated and influenced substantially by social experience. In numerous species, GABAA receptors in the lateral septum have been shown to play a significant role in aggression in males. However, very little is known about the role of these GABAA receptors in female aggression, the role of social experience on GABAA receptor-mediated aggression, or the roles of different GABAA subtypes in regulating aggression. OBJECTIVES Thus, in the following set of experiments, we determined the role of social experience in modulating GABAA receptor-induced aggression in both male and female Syrian hamsters, with a particular focus on the GABAA receptor subtype mediating these effects. RESULTS Activation of GABAA receptors in the dorsal lateral septum increased aggression in both males and females. Social housing, however, significantly decreased the ability of GABAA receptor activation to induce aggression in males but not females. No significant differences were observed in the effects of GABAA receptor activation in dominant versus subordinate group-housed hamsters. Finally, examination of potential GABAA receptor subtype specificity revealed that social housing decreased the ratio of δ extrasynaptic to γ2 synaptic subunit GABAA receptor mRNA expression in the anterior dorsal lateral septum, while activation of δ extrasynaptic, but not γ2 synaptic, GABAA receptors in the dorsal lateral septum increased aggression. CONCLUSIONS These data suggest that social experience can have profound effects on the neuronal mechanisms mediating aggression, especially in males, and that δ extrasynaptic GABAA receptors may be an important therapeutic target in disorders characterized by high levels of aggression.
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130
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Vandeleest JJ, Winkler SL, Beisner BA, Hannibal DL, Atwill ER, McCowan B. Sex differences in the impact of social status on hair cortisol concentrations in rhesus monkeys (Macaca mulatta). Am J Primatol 2020; 82:e23086. [PMID: 31876328 PMCID: PMC6980377 DOI: 10.1002/ajp.23086] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 11/19/2019] [Accepted: 12/15/2019] [Indexed: 12/26/2022]
Abstract
Social status impacts stress in primates, but the direction of the effect differs depending on species, social style, and group stability. This complicates our ability to identify broadly applicable principles for understanding how social status impacts health and fitness. One reason for this is the fact that social status is often measured as linear dominance rank, yet social status is more complex than simply high or low rank. Additionally, most research on social status and health ignores the effects of sex and sex-specific relationships, despite known differences in disease risk, coping strategies, and opposite-sex dominance interactions between males and females in many species. We examine the influence of social status, sex, and opposite-sex interactions on hair cortisol concentrations (HCC) in a well-studied species, rhesus macaques, where the literature predicts low ranking individuals would experience more chronic stress. Animals in three captive, seminaturalistic social groups (N = 252; 71 male) were observed for 6 weeks to obtain metrics of social status (rank and dominance certainty [DC]). DC is a measure of one's fit within the hierarchy. Hair samples were collected from each subject and analyzed for HCC. Generalized linear mixed models were used to examine (a) whether rank, DC, or sex predicted HCC; (b) whether same- or opposite-sex dominance relationships differentially impacted HCC; and (c) whether aggressive interactions initiated or received could explain any observed relationships. Results indicated that DC, not rank, predicted HCC in a sex-specific manner. For males, high HCC were predicted by receiving aggression from or having high DC with other males as well as having low DC with females. For females, only high DC with males predicted high HCC. These results likely relate to sex-specific life history pattern differences in inherited versus earned rank that are tied to female philopatry and male immigration.
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Affiliation(s)
- Jessica J Vandeleest
- California National Primate Research Center, University of California Davis, Davis, California
| | - Sasha L Winkler
- California National Primate Research Center, University of California Davis, Davis, California
- Department of Anthropology, UCLA, Los Angeles, California
| | - Brianne A Beisner
- California National Primate Research Center, University of California Davis, Davis, California
- Department of Population Health and Reproduction, University of California Davis, Davis, California
| | - Darcy L Hannibal
- California National Primate Research Center, University of California Davis, Davis, California
| | - Edward R Atwill
- Department of Population Health and Reproduction, University of California Davis, Davis, California
| | - Brenda McCowan
- California National Primate Research Center, University of California Davis, Davis, California
- Department of Population Health and Reproduction, University of California Davis, Davis, California
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131
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Powell SN, Wallen MM, Miketa ML, Krzyszczyk E, Foroughirad V, Bansal S, Mann J. Sociality and tattoo skin disease among bottlenose dolphins in Shark Bay, Australia. Behav Ecol 2019. [DOI: 10.1093/beheco/arz207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Abstract
Social behavior is an important driver of infection dynamics, though identifying the social interactions that foster infectious disease transmission is challenging. Here we examine how social behavior impacts disease transmission in Indo-Pacific bottlenose dolphins (Tursiops aduncus) using an easily identifiable skin disease and social network data. We analyzed tattoo skin disease (TSD) lesions based on photographs collected as part of a 34-year longitudinal study in relation to the sociality of T. aduncus using three metrics (degree, time spent socializing, and time in groups) and network structure, using the k-test. We show that calves with TSD in the second year of life associated more with TSD-positive individuals in the first year of life compared with calves that did not have TSD. Additionally, the network k-test showed that the social network links are epidemiologically relevant for transmission. However, degree, time spent in groups, and time spent socializing were not significantly different between infected and uninfected groups. Our findings indicate that association with infected individuals is predictive of an individual’s risk for TSD and that the social association network can serve as a proxy for studying the epidemiology of skin diseases in bottlenose dolphins.
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Affiliation(s)
- Sarah N Powell
- Department of Biology, Georgetown University, Washington, DC, USA
| | - Megan M Wallen
- Department of Biology, Georgetown University, Washington, DC, USA
| | - Madison L Miketa
- Department of Biology, Georgetown University, Washington, DC, USA
| | - Ewa Krzyszczyk
- Department of Biology, Georgetown University, Washington, DC, USA
| | | | - Shweta Bansal
- Department of Biology, Georgetown University, Washington, DC, USA
| | - Janet Mann
- Department of Biology, Georgetown University, Washington, DC, USA
- Department of Psychology, Georgetown University, Washington, DC, USA
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132
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Shelton KA, Nehete BP, Chitta S, Williams LE, Schapiro SJ, Simmons J, Abee CR, Nehete PN. Effects of Transportation and Relocation on Immunologic Measures in Cynomolgus Macaques ( Macaca fascicularis). JOURNAL OF THE AMERICAN ASSOCIATION FOR LABORATORY ANIMAL SCIENCE : JAALAS 2019; 58:774-782. [PMID: 31604484 PMCID: PMC6926399 DOI: 10.30802/aalas-jaalas-19-000007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/19/2019] [Accepted: 03/14/2019] [Indexed: 01/08/2023]
Abstract
NHP are a small, but critical, portion of the animals studied in research laboratories. Many NHP are imported or raised at one facility and subsequently moved to another facility for research purposes. To improve our understanding of the effects of transportation and relocation on the NHP immune system, to minimize potential confounds associated with relocation, and to maximize study validity, we examined the phenotype and function of PBMC in cynomolgus macaques (Macaca fascicularis) that were transported approximately 200 miles by road from one facility to another. We evaluated the phenotype of lymphocyte subsets through flow cytometry, mitogen-specific immune responses of PBMC in vitro, and plasma levels of circulating cytokines before transportation, at approximately 24 h after arrival (day 2), and after 30 d of acclimation. Analyses of blood samples revealed that the CD3+ and CD4+ T-cell counts increased significantly, whereas NK+, NKT, and CD14+ CD16+ nonclassical monocyte subsets were decreased significantly on day 2 after relocation compared with baseline. We also noted significantly increased immune cell function as indicated by mitogen-specific proliferative responses and by IFNγ levels on day 2 compared with baseline. After 30 d of acclimation, peripheral blood CD4+ T-cells and monocyte counts were higher than baseline, whereas B-cell numbers were lower. The mitogen-induced responses to LPS and IFNγ production after stimulation with pokeweed mitogen or phytohemagglutinin remained significantly different from baseline. In conclusion, the effects of transportation and relocation on immune parameters in cynomolgus monkeys are significant and do not fully return to baseline values even after 30 d of acclimation.
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Affiliation(s)
- Kathryn A Shelton
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas
| | - Bharti P Nehete
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas;,
| | - Sriram Chitta
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas
| | - Lawrence E Williams
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas; Graduate School of Biomedical Sciences, University of Texas, Houston, Texas
| | - Steven J Schapiro
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas; Department of Experimental Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Joe Simmons
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas
| | - Christian R Abee
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas
| | - Pramod N Nehete
- Department of Comparative Medicine, MD Anderson Cancer Center, University of Texas, Bastrop, Texas; Graduate School of Biomedical Sciences, University of Texas, Houston, Texas
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Social history and exposure to pathogen signals modulate social status effects on gene regulation in rhesus macaques. Proc Natl Acad Sci U S A 2019; 117:23317-23322. [PMID: 31611381 DOI: 10.1073/pnas.1820846116] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Social experience is an important predictor of disease susceptibility and survival in humans and other social mammals. Chronic social stress is thought to generate a proinflammatory state characterized by elevated antibacterial defenses and reduced investment in antiviral defense. Here we manipulated long-term social status in female rhesus macaques to show that social subordination alters the gene expression response to ex vivo bacterial and viral challenge. As predicted by current models, bacterial lipopolysaccharide polarizes the immune response such that low status corresponds to higher expression of genes in NF-κB-dependent proinflammatory pathways and lower expression of genes involved in the antiviral response and type I IFN signaling. Counter to predictions, however, low status drives more exaggerated expression of both NF-κB- and IFN-associated genes after cells are exposed to the viral mimic Gardiquimod. Status-driven gene expression patterns are linked not only to social status at the time of sampling, but also to social history (i.e., past social status), especially in unstimulated cells. However, for a subset of genes, we observed interaction effects in which females who fell in rank were more strongly affected by current social status than those who climbed the social hierarchy. Taken together, our results indicate that the effects of social status on immune cell gene expression depend on pathogen exposure, pathogen type, and social history-in support of social experience-mediated biological embedding in adulthood, even in the conventionally memory-less innate immune system.
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134
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MacCormack JK, Muscatell KA. The metabolic mind: A role for leptin and ghrelin in affect and social cognition. SOCIAL AND PERSONALITY PSYCHOLOGY COMPASS 2019. [DOI: 10.1111/spc3.12496] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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135
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Wolfe B, Kerr AR, Mejia A, Simmons HA, Czuprynski CJ, Golos TG. Sequelae of Fetal Infection in a Non-human Primate Model of Listeriosis. Front Microbiol 2019; 10:2021. [PMID: 31572310 PMCID: PMC6749046 DOI: 10.3389/fmicb.2019.02021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/19/2019] [Indexed: 12/13/2022] Open
Abstract
Listeria monocytogenes (Lm) is a common environmental bacterium that thrives on vegetation and soil matter, but can infect humans if contaminated food products are ingested, resulting in severe disease in immunosuppressed populations, including pregnant women and newborns. To better understand how the unique immunological milieu of pregnancy increases susceptibility to infection, we study listeriosis in cynomolgus macaques, a non-human primate that closely resembles humans in placentation and in the physiology, and immunology of pregnancy. Non-human primates are naturally susceptible to Lm infection, and spontaneous abortions due to listeriosis are known to occur in outdoor macaque colonies, making them ideal models to understand the disease pathogenesis and host-pathogen relationship of listeriosis. We have previously shown that Lm infection in the first trimester has a high rate of miscarriage. This study expands on our previous findings by assessing how the quantity of Lm as well as stage of pregnancy at the time of exposure may influence disease susceptibility. In the current study we inoculated a cohort of macaques with a lower dose of Lm than our previous study and although this did not result in fetal demise, there was evidence of in utero inflammation and fetal distress. Animals that were reinfected with an equivalent or higher dose of the same strain of Lm resulted in approximately half of cases continuing to term and half ending in fetal demise. These cases had inconsistent bacterial colonization of the fetal compartment, suggesting that Lm does not need to directly infect the placenta to cause adverse pregnancy outcomes. Timed surgical collection of tissues following inoculation demonstrated that transmission from mother to fetus can occur as soon as 5 days post-inoculation. Lastly, third trimester inoculation resulted in pregnancy loss in 3 out of 4 macaques, accompanied by characteristic pathology and Lm colonization. Collectively, our studies demonstrate that common laboratory culture tests may not always recover Lm despite known maternal ingestion. Notably, we also find it is possible for maternal infection to resolve in some cases with no discernible adverse outcome; however, such cases had evidence of a sterile intrauterine inflammatory response, with unknown consequences for fetal development.
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Affiliation(s)
- Bryce Wolfe
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Madison, WI, United States.,Wisconsin National Primate Research Center, University of Wisconsin - Madison, Madison, WI, United States
| | - Andrea R Kerr
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin - Madison, Madison, WI, United States
| | - Andres Mejia
- Wisconsin National Primate Research Center, University of Wisconsin - Madison, Madison, WI, United States
| | - Heather A Simmons
- Wisconsin National Primate Research Center, University of Wisconsin - Madison, Madison, WI, United States
| | - Charles J Czuprynski
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin -Madison, Madison, WI, United States
| | - Thaddeus G Golos
- Wisconsin National Primate Research Center, University of Wisconsin - Madison, Madison, WI, United States.,Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin - Madison, Madison, WI, United States.,Department of Obstetrics and Gynecology, University of Wisconsin - Madison, Madison, WI, United States
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136
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Ulset VS, Czajkowski NO, Kraft B, Kraft P, Wikenius E, Kleppestø TH, Bekkhus M. Are unpopular children more likely to get sick? Longitudinal links between popularity and infectious diseases in early childhood. PLoS One 2019; 14:e0222222. [PMID: 31504058 PMCID: PMC6736236 DOI: 10.1371/journal.pone.0222222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 08/24/2019] [Indexed: 12/31/2022] Open
Abstract
Social stress and inflammatory processes are strong regulators of one another. Considerable evidence shows that social threats trigger inflammatory responses that increase infection susceptibility in both humans and animals, while infectious disease triggers inflammation that in turn regulates social behaviours. However, no previous study has examined whether young children’s popularity and their rate of infectious disease are associated. We investigated the longitudinal bidirectional links between children’s popularity status as perceived by peers, and parent reports of a variety of infectious diseases that are common in early childhood (i.e. common cold as well as eye, ear, throat, lung and gastric infections). We used data from the ‘Matter of the First Friendship Study’ (MOFF), a longitudinal prospective multi-informant study, following 579 Norwegian pre-schoolers (292 girls, median age at baseline = six years) with annual assessments over a period of three years. Social network analysis was used to estimate each child’s level of popularity. Cross-lagged autoregressive analyses revealed negative dose–response relations between children’s popularity scores and subsequent infection (b = –0.18, CI = –0.29, –0.06, and b = –0.13, CI = –0.23, –0.03). In conclusion, the results suggest that children who are unpopular in early childhood are at increased risk of contracting infection the following year.
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Affiliation(s)
| | | | - Brage Kraft
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Pål Kraft
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Ellen Wikenius
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | - Mona Bekkhus
- Promenta Research Centre, Department of Psychology, University of Oslo, Oslo, Norway
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138
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Harrison GF, Sanz J, Boulais J, Mina MJ, Grenier JC, Leng Y, Dumaine A, Yotova V, Bergey CM, Nsobya SL, Elledge SJ, Schurr E, Quintana-Murci L, Perry GH, Barreiro LB. Natural selection contributed to immunological differences between hunter-gatherers and agriculturalists. Nat Ecol Evol 2019; 3:1253-1264. [PMID: 31358949 PMCID: PMC6684323 DOI: 10.1038/s41559-019-0947-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 06/17/2019] [Indexed: 11/30/2022]
Abstract
The shift from a hunter-gatherer to an agricultural mode of subsistence is believed to have been associated with profound changes in the burden and diversity of pathogens across human populations. Yet, the extent to which the advent of agriculture affected the evolution of the human immune system remains unknown. Here we present a comparative study of variation in the transcriptional responses of peripheral blood mononuclear cells to bacterial and viral stimuli between Batwa rainforest hunter-gatherers and Bakiga agriculturalists from Uganda. We observed increased divergence between hunter-gatherers and agriculturalists in the early transcriptional response to viruses compared with that for bacterial stimuli. We demonstrate that a significant fraction of these transcriptional differences are under genetic control and we show that positive natural selection has helped to shape population differences in immune regulation. Across the set of genetic variants underlying inter-population immune-response differences, however, the signatures of positive selection were disproportionately observed in the rainforest hunter-gatherers. This result is counter to expectations on the basis of the popularized notion that shifts in pathogen exposure due to the advent of agriculture imposed radically heightened selective pressures in agriculturalist populations.
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Affiliation(s)
- Genelle F Harrison
- Department of Human Genetics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Department of Genetics, CHU Sainte-Justine Research Center, Montreal, Quebec, Canada
| | - Joaquin Sanz
- Department of Genetics, CHU Sainte-Justine Research Center, Montreal, Quebec, Canada
- Department of Biochemistry, Faculty of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - Jonathan Boulais
- Department of Genetics, CHU Sainte-Justine Research Center, Montreal, Quebec, Canada
- Department of Biochemistry, Faculty of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - Michael J Mina
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Genetics, Harvard Medical School and Division of Genetics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Boston, MA, USA
| | | | - Yumei Leng
- Department of Genetics, Harvard Medical School and Division of Genetics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Boston, MA, USA
| | - Anne Dumaine
- Department of Genetics, CHU Sainte-Justine Research Center, Montreal, Quebec, Canada
| | - Vania Yotova
- Department of Genetics, CHU Sainte-Justine Research Center, Montreal, Quebec, Canada
| | - Christina M Bergey
- Departments of Anthropology and Biology, Pennsylvania State University, University Park, PA, USA
| | - Samuel L Nsobya
- Department of Pathology, School Biomedical, Makerere University, Kampala, Uganda
| | - Stephen J Elledge
- Department of Genetics, Harvard Medical School and Division of Genetics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Boston, MA, USA
| | - Erwin Schurr
- Department of Human Genetics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Lluis Quintana-Murci
- Unit of Human Evolutionary Genetics, Institut Pasteur, Paris, France
- Centre National de la Recherche Scientifique, UMR2000, Paris, France
- Center of Bioinformatics, Biostatistics and Integrative Biology, Institut Pasteur, Paris, France
| | - George H Perry
- Departments of Anthropology and Biology, Pennsylvania State University, University Park, PA, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Luis B Barreiro
- Department of Genetics, CHU Sainte-Justine Research Center, Montreal, Quebec, Canada.
- Department of Pediatrics, University of Montreal, Montreal, Quebec, Canada.
- Department of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA.
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139
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Lee W, Hiura LC, Yang E, Broekman KA, Ophir AG, Curley JP. Social status in mouse social hierarchies is associated with variation in oxytocin and vasopressin 1a receptor densities. Horm Behav 2019; 114:104551. [PMID: 31279703 DOI: 10.1016/j.yhbeh.2019.06.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 06/03/2019] [Accepted: 06/28/2019] [Indexed: 01/15/2023]
Abstract
The neuropeptides oxytocin and vasopressin and their receptors have established roles in the regulation of mammalian social behavior including parental care, sex, affiliation and pair-bonding, but less is known regarding their relationship to social dominance and subordination within social hierarchies. We have previously demonstrated that male mice can form stable linear dominance hierarchies with individuals occupying one of three classes of social status: alpha, subdominant, subordinate. Alpha males exhibit high levels of aggression and rarely receive aggression. Subdominant males exhibit aggression towards subordinate males but also receive aggression from more dominant individuals. Subordinate males rarely exhibit aggression and receive aggression from more dominant males. Here, we examined whether variation in social status was associated with levels of oxytocin (OTR) and vasopressin 1a (V1aR) receptor binding in socially relevant brain regions. We found that socially dominant males had significantly higher OTR binding in the nucleus accumbens core than subordinate animals. Alpha males also had higher OTR binding in the anterior olfactory nucleus, posterior part of the cortical amygdala and rostral lateral septum compared to more subordinate individuals. Conversely, alpha males had lower V1aR binding in the rostral lateral septum and lateral preoptic area compared to subordinates. These observed relationships have two potential explanations. Preexisting individual differences in the patterns of OTR and V1aR binding may underlie behavioral differences that promote or inhibit the acquisition of social status. More likely, the differential social environments experienced by dominant and subordinate animals may shift receptor expression, potentially facilitating the expression of adaptive social behaviors.
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Affiliation(s)
- Won Lee
- Department of Psychology, Columbia University, New York, NY, USA
| | - Lisa C Hiura
- Department of Psychology, Cornell University, Ithaca, NY, USA
| | - Eilene Yang
- Department of Psychology, Columbia University, New York, NY, USA
| | - Katherine A Broekman
- Department of Psychology, Columbia University, New York, NY, USA; SUNY Stony Brook University, Stony Brook, NY, USA
| | | | - James P Curley
- Department of Psychology, Columbia University, New York, NY, USA; Center for Integrative Animal Behavior, Columbia University, New York, NY, USA; Department of Psychology, The University of Texas at Austin, Austin, TX, USA.
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140
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Simons ND, Tung J. Social Status and Gene Regulation: Conservation and Context Dependence in Primates. Trends Cogn Sci 2019; 23:722-725. [PMID: 31320266 DOI: 10.1016/j.tics.2019.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 12/26/2022]
Abstract
Current models suggest that low social status affects immune function by increasing inflammation and compromising antiviral defense. While this pattern appears to be somewhat conserved, recent studies argue that the gene regulatory signature of social status also depends on the local environment and the nature of social hierarchies.
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Affiliation(s)
- Noah D Simons
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA
| | - Jenny Tung
- Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA; Department of Biology, Duke University, Durham, NC 27708, USA; Duke Population Research Institute, Duke University, Durham, NC 27708, USA; Institute of Primate Research, National Museums of Kenya, 00502 Nairobi, Kenya.
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141
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Fava VM, Schurr E. Evaluating the Impact of LTA4H Genotype and Immune Status on Survival From Tuberculous Meningitis. J Infect Dis 2019; 215:1011-1013. [PMID: 28419367 DOI: 10.1093/infdis/jix052] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 02/15/2017] [Indexed: 12/11/2022] Open
Affiliation(s)
- Vinicius M Fava
- Program in Infectious Diseases and Immunity in Global Health.,McGill International TB Centre.,Department of Human Genetics, and
| | - Erwin Schurr
- Program in Infectious Diseases and Immunity in Global Health.,McGill International TB Centre.,Department of Human Genetics, and.,Department of Medicine, McGill University, Montreal, Canada
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142
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Boyle CC, Cole SW, Dutcher JM, Eisenberger NI, Bower JE. Changes in eudaimonic well-being and the conserved transcriptional response to adversity in younger breast cancer survivors. Psychoneuroendocrinology 2019; 103:173-179. [PMID: 30703712 DOI: 10.1016/j.psyneuen.2019.01.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 11/10/2018] [Accepted: 01/21/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND The conserved transcriptional response to adversity (CTRA), characterized by increased expression of proinflammatory genes and decreased expression of antiviral and antibody-related genes, is upregulated in the context of chronic adversity and distress and has been linked to cancer progression. Several studies suggest that the CTRA may also be down-regulated in association with some positive psychological states, particularly eudaimonic well-being. However, it is not clear if the link between inter-individual differences in the CTRA and eudaimonic well-being can be extended to intra-individual change. Using a standardized mindfulness-based intervention, the current study tested whether mindfulness-related increases in eudaimonic well-being related to intra-individual reduction in the CTRA in a sample of younger breast cancer survivors. METHODS Participants were 22 women who had been diagnosed and treated for early-stage breast cancer at or before age 50 (Mage = 46.6 years) and had no evidence of active disease. Women completed self-report questionnaires and provided peripheral blood samples before and after a 6-week mindfulness meditation intervention. Regression analyses were used to quantify associations between the magnitude of change in eudaimonic well-being and the magnitude of change in the global CTRA score. RESULTS Women reported significant increases in eudaimonic well-being and showed decreased expression of the pro-inflammatory subcomponent of the CTRA from pre- to post-intervention. The magnitude of increase in eudaimonic well-being was associated with the magnitude of decrease in the composite CTRA score, and this relationship was driven primarily by increased expression of the antiviral/antibody-related CTRA subcomponent. While the intervention was also associated with reduced depressive symptoms, there was no association between change in depressive symptoms and change in the overall CTRA composite score or either of its subcomponents. CONCLUSIONS Results are consistent with the hypothesis that eudaimonic well-being may be an important mechanism in interventions aimed at enhancing health in vulnerable groups, and contribute to our understanding of how psychological well-being may influence physical health in cancer patients.
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Affiliation(s)
- Chloe C Boyle
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, UCLA, United States.
| | - Steve W Cole
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, UCLA, United States; Department of Psychiatry and Biobehavioral Sciences, UCLA, United States; Division of Hematology-Oncology, Department of Medicine, UCLA School of Medicine
| | - Janine M Dutcher
- Department of Psychology, Carnegie Mellon University, Pittsburgh, PA, United States
| | - Naomi I Eisenberger
- Department of Psychology, University of California, Los Angeles, CA, United States
| | - Julienne E Bower
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, UCLA, United States; Department of Psychiatry and Biobehavioral Sciences, UCLA, United States; Department of Psychology, University of California, Los Angeles, CA, United States
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143
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Dar T, Radfar A, Abohashem S, Pitman RK, Tawakol A, Osborne MT. Psychosocial Stress and Cardiovascular Disease. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2019; 21:23. [PMID: 31028483 DOI: 10.1007/s11936-019-0724-5] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW This manuscript reviews the epidemiological data linking psychosocial stress to cardiovascular disease (CVD), describes recent advances in understanding the biological pathway between them, discusses potential therapies against stress-related CVD, and identifies future research directions. RECENT FINDINGS Metabolic activity of the amygdala (a neural center that is critically involved in the response to stress) can be measured on 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) yielding a neurobiological signal that independently predicts subsequent CVD events. Furthermore, a serial pathway from ↑amygdalar activity → ↑hematopoietic tissue activity → ↑arterial inflammation → ↑CVD events has been elucidated, providing new insights into the mechanism linking stress to CVD. Psychosocial stress and stress conditions are independently associated with CVD in a manner that depends on the degree and duration of stress as well as the individual response to a stressor. Nevertheless, the fundamental biology remains incompletely defined, and stress is often confounded by adverse health behaviors. Thus, most clinical guidelines do not yet recognize psychosocial stress as an independent CVD risk factor or advocate for its treatment in CVD prevention. Clarification of this neurobiological pathway provides a better understanding of the underlying pathophysiology and suggests opportunities to develop novel preventive strategies and therapies.
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Affiliation(s)
- Tawseef Dar
- Cardiac MR-PET-CT Program, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.,Cardiology Division, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St, Boston, MA, USA
| | - Azar Radfar
- Cardiac MR-PET-CT Program, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.,Cardiology Division, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St, Boston, MA, USA
| | - Shady Abohashem
- Cardiac MR-PET-CT Program, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.,Cardiology Division, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St, Boston, MA, USA
| | - Roger K Pitman
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ahmed Tawakol
- Cardiac MR-PET-CT Program, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.,Cardiology Division, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St, Boston, MA, USA
| | - Michael T Osborne
- Cardiac MR-PET-CT Program, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA. .,Cardiology Division, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St, Boston, MA, USA. .,Cardiology Division, Massachusetts General Hospital and Harvard Medical School, 165 Cambridge Street, Suite 400, Boston, MA, 02114-2750, USA.
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144
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Brown KM, Diez-Roux AV, Smith JA, Needham BL, Mukherjee B, Ware EB, Liu Y, Cole SW, Seeman TE, Kardia SLR. Expression of socially sensitive genes: The multi-ethnic study of atherosclerosis. PLoS One 2019; 14:e0214061. [PMID: 30973896 PMCID: PMC6459532 DOI: 10.1371/journal.pone.0214061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 03/05/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Gene expression may be an important biological mediator in associations between social factors and health. However, previous studies were limited by small sample sizes and use of differing cell types with heterogeneous expression patterns. We use a large population-based cohort with gene expression measured solely in monocytes to investigate associations between seven social factors and expression of genes previously found to be sensitive to social factors. METHODS We employ three methodological approaches: 1) omnibus test for the entire gene set (Global ANCOVA), 2) assessment of each association individually (linear regression), and 3) machine learning method that performs variable selection with correlated predictors (elastic net). RESULTS In global analyses, significant associations with the a priori defined socially sensitive gene set were detected for major or lifetime discrimination and chronic burden (p = 0.019 and p = 0.047, respectively). Marginally significant associations were detected for loneliness and adult socioeconomic status (p = 0.066, p = 0.093, respectively). No associations were significant in linear regression analyses after accounting for multiple testing. However, a small percentage of gene expressions (up to 11%) were associated with at least one social factor using elastic net. CONCLUSION The Global ANCOVA and elastic net findings suggest that a small percentage of genes may be "socially sensitive," (i.e. demonstrate differential expression by social factor), yet single gene approaches such as linear regression may be ill powered to capture this relationship. Future research should further investigate the biological mechanisms through which social factors act to influence gene expression and how systemic changes in gene expression affect overall health.
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Affiliation(s)
- Kristen M. Brown
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Ana V. Diez-Roux
- Department of Epidemiology, Dornsife School of Public Health, Drexel University, Philadelphia, Pennsylvania, United States of America
| | - Jennifer A. Smith
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Belinda L. Needham
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Bhramar Mukherjee
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Erin B. Ware
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Yongmei Liu
- Department of Epidemiology and Prevention, Wake Forest University, Winston-Salem, North Carolina, United States of America
| | - Steven W. Cole
- Department of Medicine, Division of Hematology-Oncology, University of California-Los Angeles, Los Angeles, California, United States of America
| | - Teresa E. Seeman
- Department of Medicine, University of California-Los Angeles, Los Angeles, California, United States of America
| | - Sharon L. R. Kardia
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
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145
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Müller‐Klein N, Heistermann M, Strube C, Franz M, Schülke O, Ostner J. Exposure and susceptibility drive reinfection with gastrointestinal parasites in a social primate. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13313] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Nadine Müller‐Klein
- Behavioural Ecology University of Goettingen Göttingen Germany
- Leibniz Science Campus Primate Cognition German Primate Center and University of Goettingen Göttingen Germany
| | - Michael Heistermann
- Endocrinology Laboratory, German Primate Centre Leibniz Institute for Primate Research Göttingen Germany
| | - Christina Strube
- Institute for Parasitology, Centre for Infection Medicine University of Veterinary Medicine Hannover Hanover Germany
| | - Mathias Franz
- Department of Wildlife Diseases Leibniz Institute for Zoo and Wildlife Research Berlin Germany
| | - Oliver Schülke
- Behavioural Ecology University of Goettingen Göttingen Germany
- Leibniz Science Campus Primate Cognition German Primate Center and University of Goettingen Göttingen Germany
- Primate Social Evolution, German Primate Centre Leibniz Institute for Primate Research Goettingen Germany
| | - Julia Ostner
- Behavioural Ecology University of Goettingen Göttingen Germany
- Leibniz Science Campus Primate Cognition German Primate Center and University of Goettingen Göttingen Germany
- Primate Social Evolution, German Primate Centre Leibniz Institute for Primate Research Goettingen Germany
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146
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Kopec AM, Smith CJ, Bilbo SD. Neuro-Immune Mechanisms Regulating Social Behavior: Dopamine as Mediator? Trends Neurosci 2019; 42:337-348. [PMID: 30890276 DOI: 10.1016/j.tins.2019.02.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/08/2019] [Accepted: 02/22/2019] [Indexed: 12/17/2022]
Abstract
Social interactions are fundamental to survival and overall health. The mechanisms underlying social behavior are complex, but we now know that immune signaling plays a fundamental role in the regulation of social interactions. Prolonged or exaggerated alterations in social behavior often accompany altered immune signaling and function in pathological states. Thus, unraveling the link between social behavior and immune signaling is a fundamental challenge, not only to advance our understanding of human health and development, but for the design of comprehensive therapeutic approaches for neural disorders. In this review, we synthesize literature demonstrating the bidirectional relationship between social behavior and immune signaling and highlight recent work linking social behavior, immune function, and dopaminergic signaling in adolescent neural and behavioral development.
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Affiliation(s)
- Ashley M Kopec
- Department of Neuroscience and Experimental Therapeutics, Albany Medical College, Albany, NY, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA; Lurie Center for Autism, Massachusetts General Hospital for Children, Boston, MA, USA
| | - Caroline J Smith
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA; Lurie Center for Autism, Massachusetts General Hospital for Children, Boston, MA, USA
| | - Staci D Bilbo
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA; Lurie Center for Autism, Massachusetts General Hospital for Children, Boston, MA, USA.
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147
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Borland JM, Aiani LM, Norvelle A, Grantham KN, O’Laughlin K, Terranova JI, Frantz KJ, Albers HE. Sex-dependent regulation of social reward by oxytocin receptors in the ventral tegmental area. Neuropsychopharmacology 2019; 44:785-792. [PMID: 30467338 PMCID: PMC6372681 DOI: 10.1038/s41386-018-0262-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 10/22/2018] [Accepted: 10/27/2018] [Indexed: 01/26/2023]
Abstract
Social reward is critical for social relationships, and yet we know little about the characteristics of social interactions that are rewarding or the neural mechanisms underlying that reward. Here, we investigate the sex-dependent role of oxytocin receptors within the ventral tegmental area (VTA) in mediating the magnitude and valence of social reward. Operant and classical conditioning tests were used to measure social reward associated with same-sex social interactions. The effects of oxytocin, selective oxytocin receptor agonists, antagonists, and vehicle injected into the VTA on social reward was determined in male and female Syrian hamsters. The colocalization of FOS and oxytocin in sites that project to the VTA following social interaction was also determined. Females find same-sex social interactions more rewarding than males and activation of oxytocin receptors in the VTA is critical for social reward in females, as well as males. These studies provide support for the hypothesis that there is an inverted U relationship between the duration of social interaction and social reward, mediated by oxytocin; and that in females the dose-response relationship is initiated at lower doses compared with males. Same-sex social interaction is more rewarding in females than in males, and an inverted U relationship mediated by oxytocin may have a critical role in assigning positive and negative valence to social stimuli. Understanding these sex differences in social reward processing may be essential for understanding the sex differences in the prevalence of many psychiatric disorders and the development of gender-specific treatments of neuropsychiatric disorders.
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Affiliation(s)
- Johnathan M. Borland
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
| | - Lauren M. Aiani
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
| | - Alisa Norvelle
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
| | - Kymberly N. Grantham
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
| | - Kylie O’Laughlin
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
| | - Joseph I. Terranova
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
| | - Kyle J. Frantz
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
| | - H. Elliott Albers
- 0000 0004 1936 7400grid.256304.6Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, GA USA
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148
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Armenta TC, Cole SW, Geschwind DH, Blumstein DT, Wayne RK. Gene expression shifts in yellow-bellied marmots prior to natal dispersal. Behav Ecol 2019; 30:267-277. [PMID: 30971856 PMCID: PMC6450206 DOI: 10.1093/beheco/ary175] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 11/12/2018] [Accepted: 11/26/2018] [Indexed: 02/06/2023] Open
Abstract
The causes and consequences of vertebrate natal dispersal have been studied extensively, yet little is known about the molecular mechanisms involved. We used RNA-seq to quantify transcriptomic gene expression in blood of wild yellow-bellied marmots (Marmota flaviventer) prior to dispersing from or remaining philopatric to their natal colony. We tested 3 predictions. First, we hypothesized dispersers and residents will differentially express genes and gene networks since dispersal is physiologically demanding. Second, we expected differentially expressed genes to be involved in metabolism, circadian processes, and immune function. Finally, in dispersing individuals, we predicted differentially expressed genes would change as a function of sampling date relative to dispersal date. We detected 150 differentially expressed genes, including genes that have critical roles in lipid metabolism and antigen defense. Gene network analysis revealed a module of 126 coexpressed genes associated with dispersal that was enriched for extracellular immune function. Of the dispersal-associated genes, 22 altered expression as a function of days until dispersal, suggesting that dispersal-associated genes do not initiate transcription on the same time scale. Our results provide novel insights into the fundamental molecular changes required for dispersal and suggest evolutionary conservation of functional pathways during this behavioral process.
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Affiliation(s)
- Tiffany C Armenta
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
| | - Steve W Cole
- Department of Medicine, Division of Hematology-Oncology, University of California Los Angeles, Los Angeles, CA, USA
| | - Daniel H Geschwind
- Department of Psychiatry and Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - Daniel T Blumstein
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA, USA
- Rocky Mountain Biological Laboratory, Crested Butte, CO, USA
| | - Robert K Wayne
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA, USA
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149
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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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150
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Abstract
Gene expression profiling studies of people exposed to chronic threat have identified a Conserved Transcriptional Response to Adversity (CTRA) in circulating immune cells. This physiological pattern is characterized by up-regulated expression of genes involved in inflammation and down-regulated expression of genes involved in Type I interferon responses. The CTRA is mediated by beta-adrenergic signaling pathways that transduce sympathetic nervous system activity into changes in transcription factor activity and hematopoietic output of myeloid lineage immune cells (monocytes, neutrophils, and dendritic cells). Recent research has begun to identify the CNS processes that regulate peripheral CTRA activity, define its implications for disease, and explore the role of positive psychosocial factors in buffering such effects. The CTRA provides a genomic framework for understanding PNI relationships and connecting macro-level psychosocial processes to the micro-level biology of health and disease.
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Affiliation(s)
- Steven W Cole
- UCLA School of Medicine, Prepared for Current Opinion in Behavioral Science - Psychoneuroimmunology
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