Evidence map›Paper›PMID 11454644›Full record

ArticleAnnals of the rheumatic diseases2001

Tumour necrosis factor microsatellites and HLA-DRB1*, HLA-DQA1*, and HLA-DQB1* alleles in Peruvian patients with rheumatoid arthritis.

F Castro, E Acevedo, E Ciusani, J A Angulo, F A Wollheim, M Sandberg-Wollheim

Open access · bronzeAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 60 citations in OpenAlex.

  1. Frontiers in immunology · 2025
    Article
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  5. Genetics and genomics in Peru: Clinical and research perspective.Molecular genetics & genomic medicine · 2018
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  7. Article
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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 1 institution in 1 country.

F CastroHospital Central FAP, Lima, Peru.
E Acevedo
E Ciusani
J A Angulo
F A Wollheim
M Sandberg-Wollheim
EsSALUD · PE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study the association between rheumatoid arthritis (RA) and HLA and tumour necrosis factor (TNF) polymorphism in Peruvian mestizo patients in comparison with ethnically similar controls.

methodsSeventy nine patients with RA and 65 ethnically matched healthy controls were genotyped for HLA-DRB1, HLA-DQA1, HLA-DQB1, and TNFalpha and TNFbeta alleles using PCR amplification. Clinical severity was assessed as mild, moderate, or severe in 35 of the patients.

resultsTNFalpha6 showed the strongest association with disease susceptibility. The TNFalpha6 allele was more common in patients than in controls (p<0.0076) and the proportion of patients with at least one copy of this allele was greater (p<0.015, relative risk 2.35). Among the HLA-DRB1* alleles with the shared epitope sequence, only the DRB1*1402 allele was significantly increased in patients compared with controls (p<0.0311), as was the proportion of patients with at least one copy of this allele (p<0.0232, relative risk 2.74). In contrast, the overall frequency of alleles with the shared epitope was not different in patients and controls. The haplotype HLA-DRB1*1402-DQB1*0301-DQA1*0401 was significantly more common in patients. TNFalpha6 was more common in patients whether or not they had this haplotype. None of the 11 patients lacking the TNFalpha6 allele had severe disease.

conclusionsThis study shows for the first time that TNF gene polymorphism is associated with susceptibility to RA in a non-white population. TNFalpha6 and HLA-DRB1*1402 independently conferred significantly increased risk in Peruvian mestizo patients.

Indexed as

AllelesArthritis, RheumatoidCase-Control StudiesEpitopesGene FrequencyGenetic Predisposition to DiseaseGenotypeHaplotypesHLA-DQ alpha-ChainsHLA-DQ AntigensHLA-DQ beta-ChainsHLA-DR AntigensHLA-DRB1 ChainsHumansMicrosatellite RepeatsPeruEpitopesHLA-DQA1 antigenHLA-DQ alpha-ChainsHLA-DQ AntigensHLA-DQB1 antigenHLA-DQ beta-ChainsHLA-DR AntigensHLA-DRB1 ChainsTumor Necrosis Factor-alpha

Identifiers

PMID11454644
PMCPMC1753809
OpenAlexW2114969521

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.