Evidence map›Paper›PMID 27465811›Full record

ArticleAmerican journal of physical anthropology2016

Associations between male testosterone and immune function in a pathogenically stressed forager-horticultural population.

Benjamin C Trumble, Aaron D Blackwell, Jonathan Stieglitz, Melissa Emery Thompson, Ivan Maldonado Suarez, Hillard Kaplan, Michael Gurven

Open access · greenAbstract read
In one paragraph

Article in American journal of physical anthropology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Social determinants drive lymphedema severity and treatment adherence: evidence from a three-year retrospective cohort study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Energetic costs of testosterone in two subsistence populations.American journal of human biology : the official journal of the Human Biology Council · 2023
    Article
  10. The best of both worlds: no apparent trade-off between immunity and reproduction in two group-living African mole-rat species.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Article
  11. Review
  12. Ecoimmunology in the field: Measuring multiple dimensions of immune function with minimally invasive, field-adapted techniques.American journal of human biology : the official journal of the Human Biology Council · 2022
    Review
  13. Evidence for an adolescent sensitive period to family experiences influencing adult male testosterone production.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Effects ofPathogens (Basel, Switzerland) · 2020
    Article
  20. Relationship of sanitation, water boiling, and mosquito nets to health biomarkers in a rural subsistence population.American journal of human biology : the official journal of the Human Biology Council · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 3 countries.

Benjamin C TrumbleDepartment of Anthropology, University of California Santa Barbara, Santa Barbara, CA. Trumble@asu.edu.ORCID 0000-0003-3201-0628
Aaron D BlackwellDepartment of Anthropology, University of California Santa Barbara, Santa Barbara, CA.ORCID 0000-0002-5871-9865
Jonathan StieglitzTsimane Health and Life History Project, San Borja, Bolivia.
Melissa Emery ThompsonDepartment of Anthropology, University of New Mexico, Albuquerque, NM.
Ivan Maldonado SuarezTsimane Health and Life History Project, San Borja, Bolivia.
Hillard KaplanTsimane Health and Life History Project, San Borja, Bolivia.
Michael GurvenDepartment of Anthropology, University of California Santa Barbara, Santa Barbara, CA.
University of California, Santa Barbara · USUniversity of New Mexico · USBorneo Orangutan Survival Foundation · ID

Funding

THE MATHEMATICAL DEMOGRAPHY OF BIODEMOGRAPHYP01AG022500 · NIA · UNIVERSITY OF CALIFORNIA DAVIS · PI CAREY, JAMES R. · 2003 to 2010
$8.1M
The Human Life Course and the Biodemography of AgingR01AG024119 · NIA · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI GURVEN, MICHAEL DOUGLAS, KAPLAN, HILLARD S · 2004 to 2015
$7.4M
The Human Life Course and the Biodemography of AgingR56AG024119 · NIA · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI GURVEN, MICHAEL DOUGLAS, KAPLAN, HILLARD S · 2009 to 2015
$1.0M
NIA NIH HHS P01 AG022500NIA NIH HHS R01 AG024119NIA NIH HHS R56 AG024119
6 · The paper itself

Abstract

objectivesDespite well-known fitness advantages to males who produce and maintain high endogenous testosterone levels, such phenotypes may be costly if testosterone-mediated investment in reproductive effort trade-off against investment in somatic maintenance. Previous studies of androgen-mediated trade-offs in human immune function find mixed results, in part because most studies either focus on a few indicators of immunity, are confounded by phenotypic correlation, or are observational. Here the association between male endogenous testosterone and 13 circulating cytokines are examined before and after ex vivo antigen stimulation with phytohemagglutinin (PHA) and lipopolysaccharides (LPS) in a high pathogen population of Bolivian forager-horticulturalists. MATERIALS AND

methodsA Milliplex 13-plex cytokine panel measured cytokine concentration in whole blood samples from 109 Tsimane men aged 40-89 (median = 50 years) before and after antigen stimulation with PHA and LPS. Urinary testosterone was measured via enzyme immunoassay, demographic, and anthropometric data were collected as part of the Tsimane Health and Life History Project.

resultsHigher endogenous testosterone was associated with down-regulated responses in all cytokines after PHA stimulation (but significantly in only 2/13 cytokines), controlling for age and body mass index. In contrast, testosterone was not significantly associated with down-regulation of cytokines after LPS stimulation. MANOVAs indicate that men with higher testosterone showed reduced cytokine responses to PHA compared with LPS (p = 0.0098). DISCUSSION: Endogenous testosterone appears to be immunomodulatory rather than immunosuppressive. Potentially costlier forms of immune activation like those induced by PHA (largely T-cell biased immune activation) are down-regulated in men with higher testosterone, but testosterone has less impact on potentially less costly immune activation following LPS stimulation (largely B-cell mediated immunity).

Indexed as

AdultAgedAged, 80 and overAgricultureAnalysis of VarianceAnthropology, PhysicalBoliviaCytokinesFemaleHumansIndians, South AmericanLipopolysaccharidesMaleMiddle AgedTestosteroneCytokinesLipopolysaccharidesTestosteroneimmunocompetence handicap hypothesislipopolysaccharides (LPS)phytohemagglutinin (PHA)testosteroneTsimane

Identifiers

PMID27465811
PMCPMC5075254
OpenAlexW2500128609

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.