Evidence map›Paper›PMID 18936206›Full record

ArticleThe Journal of nutrition2008

Green tea protects rats against autoimmune arthritis by modulating disease-related immune events.

Hong Ro Kim, Rajesh Rajaiah, Qing-Li Wu, Shailesh R Satpute, Ming T Tan, James E Simon, Brian M Berman, Kamal D Moudgil

Open access · greenAbstract read
In one paragraph

Article in The Journal of nutrition, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Immunomodulatory Effects of Green Tea Polyphenols.Molecules (Basel, Switzerland) · 2021
    Review
  10. Review
  11. Review
  12. Review
  13. Coffee and Tea Consumption in Relation to Risk of Rheumatoid Arthritis in the Women's Health Initiative Observational Cohort.Journal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases · 2019
    Observational
  14. Article
  15. Article
  16. Review
  17. Article
  18. The Role of IL-17 and Th17 Lymphocytes in Autoimmune Diseases.Archivum immunologiae et therapiae experimentalis · 2015
    Review
  19. Article
  20. 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

8 authors at 2 institutions in 1 country.

Hong Ro KimDepartment of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
Rajesh Rajaiah
Qing-Li Wu
Shailesh R Satpute
Ming T Tan
James E Simon
Brian M Berman
Kamal D Moudgil
University of Maryland, Baltimore · USRutgers, The State University of New Jersey · US

Funding

Herbal Therapy in Immune Mediated ArthritisP50AT000084 · NCCIH · UNIVERSITY OF MARYLAND BALTIMORE · PI BERMAN, BRIAN M · 1999 to 2003
$6.5M
Modulation of Autoimmunity by Green Tea PolyphenolsR21AT001608 · NCCIH · UNIVERSITY OF MARYLAND BALTIMORE · PI MOUDGIL, KAMAL D. · 2005 to 2006
$339k
NCCIH NIH HHS P50 AT000084NCCIH NIH HHS P50 AT00084-05NCCIH NIH HHS R21 AT001608NCCIH NIH HHS R21AT001608-01A2
6 · The paper itself

Abstract

Green tea, a product of the dried leaves of Camellia sinensis, is the most widely consumed beverage in the world. The polyphenolic compounds from green tea (PGT) possess antiinflammatory properties. We investigated whether PGT can afford protection against autoimmune arthritis and also examined the immunological basis of this effect using the rat adjuvant arthritis (AA) model of human rheumatoid arthritis (RA). AA can be induced in Lewis rats (RT.1(l)) by immunization with heat-killed Mycobacterium tuberculosis H37Ra (Mtb), and arthritic rats raise a T cell response to the mycobacterial heat-shock protein 65 (Bhsp65). Rats consumed green tea (2-12 g/L) in drinking water for 1-3 wk and then were injected with Mtb to induce disease. Thereafter, they were observed regularly and graded for signs of arthritis. Subgroups of these rats were killed at defined time points and their draining lymph node cells were harvested and tested for T cell proliferative and cytokine responses. Furthermore, the sera collected from these rats were tested for anti-Bhsp65 antibodies. Feeding 8 g/L PGT to Lewis rats for 9 d significantly reduced the severity of arthritis compared with the water-fed controls. Interestingly, PGT-fed rats had a lower concentration of the proinflammatory cytokine interleukin (IL)-17 but a greater concentration of the immunoregulatory cytokine IL-10 than controls. PGT feeding also suppressed the anti-Bhsp65 antibody response. Thus, green tea induced changes in arthritis-related immune responses. We suggest further systematic exploration of dietary supplementation with PGT as an adjunct nutritional strategy for the management of RA.

Indexed as

AnimalsAntibodies, BacterialArthritis, ExperimentalAutoimmune DiseasesCytokinesHeat-Shock ProteinsInjections, Intra-ArticularMaleMycobacterium tuberculosisRatsRats, Inbred LewTeaT-LymphocytesAntibodies, BacterialCytokinesHeat-Shock ProteinsTea

Identifiers

PMID18936206
PMCPMC2693422
OpenAlexW2121186933

What OpenQuestion holds

Textmetadata
LicenceTDM
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.