Evidence map›Paper›PMID 28994615›Full record

ArticleGenetic testing and molecular biomarkers2017

MTRR A66G, RFC1 G80A, and MTHFR C677T and A1298C Polymorphisms and Disease Activity in Mexicans with Rheumatoid Arthritis Treated with Methotrexate.

Mirna Gisel González-Mercado, Fernando Rivas, M Patricia Gallegos-Arreola, M Cristina Morán-Moguel, Mario Salazar-Páramo, Laura González-López, J Iván Gámez-Nava, J Francisco Muñoz-Valle, Ricardo Medina-Coss Y León, Anahí González-Mercado and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Genetic testing and molecular biomarkers, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 24% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Genotype Combinations and Genetic Risk Score Analyses ofCurrent issues in molecular biology · 2025
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  10. Association ofThe Journal of international medical research · 2020
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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

14 authors at 1 institution in 1 country.

Mirna Gisel González-Mercado1 Divisiones de Genética y Medicina Molecular, Centro de Investigación Biomédica de Occidente , IMSS, Guadalajara, México.
Fernando Rivas4 Hospital General de Occidente , Secretaría de Salud Jalisco, Zapopan, México.
M Patricia Gallegos-Arreola1 Divisiones de Genética y Medicina Molecular, Centro de Investigación Biomédica de Occidente , IMSS, Guadalajara, México.
M Cristina Morán-Moguel1 Divisiones de Genética y Medicina Molecular, Centro de Investigación Biomédica de Occidente , IMSS, Guadalajara, México.
Mario Salazar-Páramo5 División de Investigación , UMAE, HE, CMNO y HGR 110, IMSS, Guadalajara, México.
Laura González-López5 División de Investigación , UMAE, HE, CMNO y HGR 110, IMSS, Guadalajara, México.
J Iván Gámez-Nava5 División de Investigación , UMAE, HE, CMNO y HGR 110, IMSS, Guadalajara, México.
J Francisco Muñoz-Valle3 Departamento de Biología Molecular y Genómica, DGH, CUCS, Universidad de Guadalajara , Guadalajara, México.
Ricardo Medina-Coss Y León1 Divisiones de Genética y Medicina Molecular, Centro de Investigación Biomédica de Occidente , IMSS, Guadalajara, México.
Anahí González-Mercado1 Divisiones de Genética y Medicina Molecular, Centro de Investigación Biomédica de Occidente , IMSS, Guadalajara, México.
Mario A Aceves5 División de Investigación , UMAE, HE, CMNO y HGR 110, IMSS, Guadalajara, México.
Nory O Dávalos3 Departamento de Biología Molecular y Genómica, DGH, CUCS, Universidad de Guadalajara , Guadalajara, México.
Agustín Macías-Chumacera6 Departamento de Fisiología, CUCS, Universidad de Guadalajara , Guadalajara, México.
Ingrid P Dávalos1 Divisiones de Genética y Medicina Molecular, Centro de Investigación Biomédica de Occidente , IMSS, Guadalajara, México.
Tecnológico de Monterrey · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo investigate the relationships of polymorphisms in genes whose protein products are related in the metabolic pathway of folic acid, particularly MTRR A66G, RFC1 G80A, and MTHFR C677T and A1298C, and disease activity in Mexican patients with rheumatoid arthritis (RA) treated with methotrexate (MTX). MATERIALS AND

methodsSixty-eight patients with RA were included in the study who were being treated with MTX, either with or without other drugs. In addition to general data, disease activity was measured by the disease activity score 28 (DAS28). Single nucleotide polymorphisms (SNPs) genotyping was performed by allelic discrimination using real-time polymerase chain reaction.

resultsDifferences in genotype (homozygotic or heterozygotic for each allele), allele distributions, and phenotype were not statistically different between the RA group and control populations. We did not find any association between the studied polymorphisms and disease activity nor with the intragroup variables (e.g., clinical activity, body mass index, and single- or combined-drug treatment) or between genetic markers; we also did not find any association within the RA group or between the RA group and control populations.

conclusionAdditional studies of more polymorphisms related to this or other metabolic pathways are required to determine the influence of genetics on disease activity in RA.

Indexed as

AdultAgedAllelesArthritis, RheumatoidEthnicityFemaleFerredoxin-NADP ReductaseFolic AcidGene FrequencyGenotypeHumansMaleMethotrexateMethylenetetrahydrofolate Reductase (NADPH2)MexicoMiddle AgedFerredoxin-NADP ReductaseFolic Acidmethionine synthase reductaseMethotrexateMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, humanReplication Protein CRFC1 protein, humanDAS28methotrexateMTHFRMTRRRFC1rheumatoid arthritis

Identifiers

PMID28994615
PMCPMC5695735
OpenAlexW2761914893

What OpenQuestion holds

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LicenceCC BY-NC
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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.