Evidence map›Paper›PMID 32928302›Full record

ArticleParasites & vectors2020

Association between lone star tick bites and increased alpha-gal sensitization: evidence from a prospective cohort of outdoor workers.

Cedar L Mitchell, Feng-Chang Lin, Meagan Vaughn, Charles S Apperson, Steven R Meshnick, Scott P Commins

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
4.2field-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

34 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Review
  3. Why are the ticks winning, and what can we do about it?Ticks and tick-borne diseases · 2026
    Review
  4. Differential alpha-gal expression duringThe journal of allergy and clinical immunology. Global · 2026
    Article
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  7. Review
  8. Article
  9. Review
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  11. Review
  12. Article
  13. IgE and anaphylaxis specific to the carbohydrate alpha-gal depend on IL-4.The Journal of allergy and clinical immunology · 2024
    Article
  14. Article
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  17. Review
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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

6 authors at 2 institutions in 2 countries.

Cedar L MitchellDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA. cedarmit@live.unc.edu.ORCID http://orcid.org/0000-0002-4811-2074
Feng-Chang LinDepartment of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Meagan VaughnDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
Charles S AppersonDepartment of Entomology and Plant Pathology, North Carolina State University, Raleigh, North Carolina, USA.
Steven R MeshnickDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
Scott P ComminsDepartment of Medicine, Thurston Research Center, Division of Allergy, Immunology and Rheumatology, Chapel Hill, North Carolina, USA.
University of North Carolina at Chapel Hill · USNorth Carolina State University · US

Funding

Understanding alpha-gal red meat allergyR01AI135049 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Scott Palmer Commins · 2018 to 2026
$5.1M
Preventing Lyme Disease Exposure Among Outdoor WorkersR01OH010791 · OH · UNIVERSITY OF RHODE ISLAND · PI MATHER, THOMAS N, MESHNICK, STEVEN RICHARD · 2015 to 2018
$2.0M
Preventing Exposure to Ticks and Tick-Borne Illness in Outdoor WorkersR01OH009874 · OH · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MESHNICK, STEVEN RICHARD · 2010 to 2013
$1.2M
NIAID NIH HHS R01 AI135049NIOSH CDC HHS R01 OH009874NIOSH CDC HHS R01 OH010791
6 · The paper itself

Abstract

backgroundAlpha-gal is an oligosaccharide implicated in delayed anaphylaxis following red meat consumption. Exposure to tick bites has been correlated with development of an allergic response to alpha-gal. However, evidence prospectively linking exposure to a single tick species and an immune response to alpha-gal is lacking.

methodsWe used serum samples from a prior study cohort of outdoor workers in North Carolina, USA, with high exposure to the lone star tick, Amblyomma americanum, to prospectively evaluate the relationship between tick bites and anti-alpha-gal IgE antibodies.

resultsIndividuals who reported exposure to one or more tick bites were significantly more likely to have a positive change in anti-alpha-gal IgE compared to individuals with no reported tick bites. This relationship was not dependent on time. A trend toward increasing number of tick bites and increased anti-alpha-gal IgE levels was observed but not statistically significant.

conclusionTo our knowledge, this is the first study to prospectively link documented exposure to A. americanum bites and increased sensitization to alpha-gal in a cohort of outdoor workers. Our results support the role of A. americanum as likely agents for eliciting an allergic response to red meat, and highlight the importance of preventing tick bites.

Indexed as

AdultAmblyommaAnimalsCattleDisaccharidesFarmersFemaleFood HypersensitivityHumansImmunoglobulin EMaleMiddle AgedNorth CarolinaProspective StudiesRed MeatTick BitesDisaccharidesgalactosyl-(1-3)galactoseImmunoglobulin EAlpha-galAmblyomma americanumRed meat allergy

Identifiers

PMID32928302
PMCPMC7490856
OpenAlexW3085777185

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.