Cited by 480Attachment and Relationship DynamicsStress Responses and CortisolTryptophan and brain disorders

Close relationships, inflammation, and health

Open access
Kiecolt-Glaser, Janice K., Gouin, Jean-Philippe, Hantsoo, Liisa·2010·Neuroscience & Biobehavioral Reviews

Abstract

KIECOLT-GLASER, J.K., J-P. Gouin, and L. Hantsoo, Close Relationships, Inflammation, and Health. NEUROSCI BIOBEHAV REV XX(X) XXX-XXX, 2009.- Different aspects of personal relationships including social integration, social support, and social conflict have been related to inflammation. This article summarizes evidence linking the quality and quantity of relationships with gene expression, intracellular signaling mechanisms, and inflammatory biomarkers, and highlights the biological and psychological pathways through which close relationships impact inflammatory responses. Relationship conflict and lower social support can effectively modulate proinflammatory cytokine secretion both directly (via CNS/neural/endocrine/immune biobehavioral pathways), and indirectly, by promoting depression, emotional stress responses, and detrimental health behaviors. Accordingly, thorough assessments of health behaviors and attention to key methodological issues are necessary to identify the contributions of relationships to inflammation, and thus we highlight procedural issues to be considered in the design of studies. Despite some notable methodological challenges, the evidence suggests that learning more about how close relationships influence inflammation will provide important new insights into the ways that relationships impact health.

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Crossref · 10.1016/j.neubiorev.2009.09.003

Cites

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    There is a robust association between inflammation and depression in clinically depressed samples and in community-based samples.

    “There is a robust association between inflammation and depression not only in clinically depressed samples, but also in community-based samples”
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    In a genome-wide DNA microarray study, genes under-expressed by socially isolated individuals involved anti-inflammatory response elements and genes over-expressed involved proinflammatory response elements, compared to less isolated individuals.

    “in a genome-wide DNA microarray study, genes under-expressed by socially isolated individuals involved anti-inflammatory response elements and genes over-expressed involved proinflammatory response elements, compared to individuals who reported less social isolation”
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    Psychosocial stress can directly provoke proinflammatory cytokine production in the absence of infection or injury.

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    Depression may sensitize the inflammatory response, promoting larger cytokine increases in response to stressors or antigen challenge.

    “there is some evidence that depression may sensitize the inflammatory response, thus effectively promoting larger cytokine increases in response to stressors or antigen challenge”
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    Chronic inflammation has been suggested as one key biological mechanism that may fuel declines in physical function leading to frailty, disability, and death.

    “chronic inflammation has been suggested as one key biological mechanism that may fuel declines in physical function leading to frailty, disability, and, ultimately, death”
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    Among older adults, married men had lower CRP levels than previously married men, as well as married and unmarried women.

    “Among older adults, married men had lower CRP levels than previously married men, as well as married and unmarried women”
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    Depression is reliably associated with relationship conflict and lower social support.

    “Depression is reliably associated with relationship conflict and lower social support, providing one psychological mechanism through which close relationships influence inflammation”
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    Pharmacologically-induced inflammation can produce symptoms of depression, indicating that the relationship between inflammation and depression is bidirectional.

    “Findings that pharmacologically-induced inflammation can produce symptoms of depression indicate that the relationship between inflammation and depression is bidirectional.”
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    The CRP differences by marital status were not explained by mood, stress, loneliness, or social support, and none of these variables moderated the association.

    “Notably, these CRP differences were not explained by mood, stress, loneliness, or social support, and none of these variables moderated the association between marital status and CRP levels”
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    Social integration, as assessed by marital status, number of close friends and relatives, and participation in religious activities, clubs, and voluntary associations, is inversely related to plasma levels of IL-6 and CRP.

    “Social integration, as assessed by marital status, number of close friends and relatives, and participation in religious activities, clubs, and voluntary associations was inversely related to plasma levels of IL-6 and CRP.”
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    Depression and stress contribute to a greater risk for infection, prolonged infectious episodes, and delayed wound healing.

    “depression and stress contribute to a greater risk for infection, prolonged infectious episodes, and delayed wound healing”
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    Even after their spouse's death, bereaved spousal caregivers' mean annual rate of change in IL-6 did not differ from current caregivers, and these patterns were not explained by differences in health or medication status.

    “Even after their spouse's death, bereaved spousal caregivers’ mean annual rate of change in IL-6 did not differ from current caregivers, and these patterns of change were not explained by differences in health or medication status.”
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    Dietary intake and/or supplements like omega-3 and curcumin can impact inflammation as well as mood.

    “dietary intake and/or supplements like omega-3 and curcumin can also impact inflammation as well as mood”
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    Acute exercise transiently boosts production and release of IL-6 from skeletal muscles; the IL-6 released during physical activity inhibits TNF-alpha production and induces IL-10 production.

    “acute exercise transiently boosts production and release of IL-6 from skeletal muscles; the IL-6 that is released during physical activity inhibits TNF-α production and induces IL-10 production, one of exercise's anti-inflammatory mechanisms”
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    Compared to similar older adults without caregiving responsibilities, caregivers have an increased risk for infectious disease and delayed wound healing.

    “Compared to similar older adults without caregiving responsibilities, caregivers have an increased risk for infectious disease (evidenced by poorer vaccine responses) as well as delayed wound healing”
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    Genes underexpressed by family cancer caregivers included glucocorticoid response elements, while genes overexpressed included NF-kB response elements, compared to noncaregiving controls.

    “genes underexpressed by family cancer caregivers included glucocorticoid response elements, while genes overexpressed included NF-κB response elements, compared to noncaregiving controls”
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    Among individuals caring for a family member with cancer, CRP increased and glucocorticoid sensitivity decreased in the year following the first radiotherapy treatment.

    “Among individuals who were caring for a family member with cancer, CRP increased and glucocorticoid sensitivity decreased in the year following the first radiotherapy treatment”
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    Less hostile couples showed roughly the same increment in IL-6 over 24 hours following either a social support or conflict interaction (65% vs. 70%), while IL-6 production for more hostile couples jumped from 45% to 113%.

    “less hostile couples showed roughly the same increment in IL-6 over 24 hours following either a social support or conflict interaction (65% vs. 70%), while IL-6 production for the more hostile couples jumped from 45% to 113%”
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    Caregivers' social networks shrink over the course of caregiving; bereaved caregivers' self-rated loneliness remains similar to that of current caregivers for several years or more after the death of the impaired spouse, contributing to enduring IL-6 differences.

    “Caregivers’ social networks shrink over the course of caregiving; bereaved caregivers’ self-rated loneliness remains similar to that of current caregivers for several years or more after the death of the impaired spouse, undoubtedly contributing to the enduring IL-6 differences”
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    Epidemiological studies have linked social isolation, low social support, and high levels of social conflict with morbidity and mortality, and inflammation provides one obvious mechanism.

    “Epidemiological studies have linked social isolation, low social support, and high levels of social conflict with morbidity and mortality, and inflammation provides one obvious mechanism”
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    Age was significantly correlated with IL-6 in caregivers but not controls, suggesting older caregivers may be at risk for a rapid transition into frailty syndrome.

    “age was significantly correlated with IL-6 in caregivers but not controls, suggesting that older caregivers may be at risk for a rapid transition into what has been termed the frailty syndrome”
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    Dementia caregiving strains family relationships, resulting in depression as well as inflammation.

    “In sum, dementia caregiving strains family relationships, resulting in depression as well as inflammation.”
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    Supportive relationships can substantially influence inflammation by facilitating health promoting behaviors, while relationship conflict or termination can provoke detrimental health behaviors including less physical activity, disturbed sleep, unhealthy diets, and greater use of alcohol and other drugs.

    “Supportive relationships can substantially influence inflammation by facilitating health promoting behaviors, while relationship conflict or termination can provoke detrimental health behaviors including less physical activity, disturbed sleep, unhealthy diets, and greater use of alcohol and other drugs”
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    Adipocytes are capable of producing and secreting IL-6 and TNF-alpha; up to 30% of IL-6 may be derived from adipose tissue.

    “adipocytes (fat cells) are capable of producing and secreting IL-6 and TNF-α; up to 30% of IL-6 may be derived from adipose tissue”
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    IL-6 and TNF-alpha have distinct diurnal cycles; normal IL-6 values at 9:00 PM are more than twice as large as those at 9:00 AM.

    “Both IL-6 and TNF-α have distinct diurnal cycles, e.g., normal IL-6 values at 9:00 PM are more than twice as large as those at 9:00 AM”
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  • The paper relies on this without support.

    The cited studies' findings are valid and can be generalized to the populations and contexts discussed in the review.

    “This article summarizes evidence linking inflammation and health, and highlights the pathways through which close personal relationships impact inflammatory responses.”
  • The paper relies on this without support.

    The biomarkers IL-6 and CRP adequately reflect inflammatory processes relevant to health outcomes.

    “C-reactive protein (CRP) and proinflammatory cytokines such as interleukin-1 (IL-1), IL-6, and tumor necrosis factor-alpha (TNF-α) are prognostic for cardiovascular disease, type II diabetes, arthritis, osteoporosis, Alzheimer's disease, and periodontal disease”
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Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • These effects of naturally occurring social stressors on inflammation are detected for both acute and chronic forms of life stress and are particularly strong for social stressors involving conflict, threat, isolation, and rejection.

    “These effects have been detected for both acute and chronic forms of life stress and are particularly strong for social stressors involving conflict, threat, isolation, and rejection”

    From From stress to inflammation and major depressive disorder: A social signal transduction theory of depression. (2014) · cites this paper as Kiecolt-Glaser, Gouin, & Hantsoo, 2010

    The ‘Pathways From Personal Relationships To Health’ section (page unavailable) says stressful interpersonal experiences contribute to acute and chronic inflammatory cytokine production. ‘Social Relationships and Inflammation’ links conflict and isolation to inflammatory markers, but the copy does not establish that effects are particularly strong for these stressors relative to others, or specifically address threat and rejection. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Naturally occurring social stressors in adolescence and adulthood are associated with elevated levels of inflammatory activity.

    “There is also a large body of research demonstrating that naturally occurring social stressors in adolescence and adulthood are associated with elevated levels of inflammatory activity.”

    From From stress to inflammation and major depressive disorder: A social signal transduction theory of depression. (2014) · cites this paper as Kiecolt-Glaser, Gouin, & Hantsoo, 2010

  • Social bonding probably supports brain health via core neuroendocrine pathways influencing many brain and body functions.

    “As seen in Figure 1, social bonding likely contributes to brain health through primary neuroendocrine pathways that affect numerous brain and bodily functions.6,38”
  • In humans, stress correlates with memory problems and quicker cognitive decline in early-stage ADRD.

    “In humans, stress is associated with memory impairment and faster rates of cognitive decline among those with early stage ADRD.38,46,47”
  • Chronic inflammation is a potent driver of disease.

    “Chronic inflammation is a potent driver of disease.35”

    From Social Media Use and Its Link to Physical Health Indicators (2022) · cites this paper as [35]

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Authors
Kiecolt-Glaser, J. K., Gouin, J.-P., & Hantsoo, L.
Affiliations
The Ohio State University (US)
Venue
Neuroscience & Biobehavioral Reviews
Publisher
Elsevier BV
Published
2010-09
Volume
35
Issue
1
Pages
33-38
ISSN
0149-7634 (ISSN-L)
OpenAlex
W2015323877
Cited by
480
References
55
Citations by year
2026: 18 · 2025: 31 · 2024: 23 · 2023: 24 · 2022: 29 · 2021: 43 · 2020: 43 · 2019: 39 · 2018: 33 · 2017: 30 · 2016: 26 · 2015: 27 · 2014: 34 · 2013: 35 · 2012: 27
FWCI
2.07
Type
journal article
Language
en
Open access
Locations
  • Neuroscience & Biobehavioral Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (R01AG029562, R21AG025732, AG029562)
  • National Cancer Institute (CA16058, CA126857, R01CA126857, CA131029, R01CA131029, P30CA016058)
  • National Center for Research Resources (UL1RR025755)
  • National Center for Complementary and Integrative Health (R21AT003912, AT003912)
Topics
  • Social Sciences › Psychology › Social Psychology › Attachment and Relationship Dynamics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
close relationships, inflammation, social support, social conflict, relationship quality, inflammatory cytokines, gene expression, inflammatory markers, depression, emotional stress, health behavior, social integration
MeSH terms
Alcohol Drinking, Animals, Behavior, Chronic Disease, Depression, Female, Health Status, Humans, Inflammation, Interpersonal Relations, Male, Motor Activity, Smoking, Stress, Psychological, Adiposity

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