Evidence map›Paper›PMID 34122714›Full record

ArticleThe Pan African medical journal2021

[Association of methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and the risk of sporadic colorectal cancer].

Imane Baghad, Driss Erreguibi, Rachid Boufettal, Saad Rifki Eljai, Farid Chihab, Sellama Nadifi

Open access · goldAbstract read
In one paragraph

Article in The Pan African medical journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 35% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Study of theDiagnostics (Basel, Switzerland) · 2025
    Article
  3. Children (Basel, Switzerland) · 2025
    Review
  4. Article
  5. 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

6 authors at 2 institutions in 1 country.

Imane BaghadLaboratoire de Génétique et Pathologie Moléculaire, Faculté de Médecine et Pharmacie, Université Hassan II de Casablanca, Casablanca, Maroc.
Driss ErreguibiService de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc.
Rachid BoufettalService de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc.
Saad Rifki EljaiService de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc.
Farid ChihabService de Chirurgie Viscérale Aile III, Centre Hospitalier Universitaire Ibn Rochd, Université Hassan II, Casablanca, Maroc.
Sellama NadifiLaboratoire de Génétique et Pathologie Moléculaire, Faculté de Médecine et Pharmacie, Université Hassan II de Casablanca, Casablanca, Maroc.
Centre Hospitalier Universitaire Ibn Rochd · MAUniversity of Hassan II Casablanca · MA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Colorectal cancer (CRC) is a major global public health problem. Folate metabolism is involved in DNA synthesis, repair and methylation. Methylenetetrahydrofolate reductase (MTHFR) is a key enzyme in folate metabolism. Common MTHFR C677T polymorphism was correlated to CRC. This case-control study was conducted to analyze the association between this polymorphism and the risk of sporadic CRC in a Moroccan population. The study involved 76 patients with sporadic colorectal cancer confirmed histologically and 182 patients (control group) without a history of cancer. Deoxyribonucleic acid (DNA) was isolated from peripheral blood and genotypes were determined using PCR-RFLP. The risk of association was estimated using odds ratio (OR) with 95% confidence interval. Genotype frequency of MTHFR in patients and in the control group was CC 34.1%, CT 56.6%, TT 9.21%, CC 51.6%, CT 42.8% and TT 6% respectively. CT genotype and its combination with TT genotype and allele T were associated with an increased risk of CRC and with an OR of 2.02 (with 95% confidence interval [CI]: 1.14-3.58, p = 0.01), 2.05 (95 % CI: 1.18-3.58, p= 0.01) and 1.61 (95% CI: 1.07-2.40, p=0.02). Homozygous TT weren´t a protection factor in our study, with an OR of 2.30 (95% CI: 0.81-6.52, p = 0.11). There was a statistically significant association between the MTHFR C677T variant and the risk of occurrence of sporadic colorectal cancer in the studied population.

Indexed as

Genetic Predisposition to DiseaseAdultAllelesCase-Control StudiesColorectal NeoplasmsFemaleGenotypeHumansMaleMethylenetetrahydrofolate Reductase (NADPH2)Middle AgedMoroccoPolymerase Chain ReactionPolymorphism, GeneticPolymorphism, Restriction Fragment LengthMethylenetetrahydrofolate Reductase (NADPH2)MTHFR protein, humanC677T polymorphismcolorectal cancerMoroccoMTHFR genepopulationsporadic

Identifiers

PMID34122714
PMCPMC8179987
OpenAlexW3136284461

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.