ArticlePituitary2014
MTHFR C677T polymorphism, folate status and colon cancer risk in acromegalic patients.
Article in Pituitary, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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The trial behind it
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.
- Risk of cancer in acromegaly patients: An updated meta-analysis and systematic review.PloS one · 2023Pooled it
- Growth hormone and gastrointestinal malignancy: An intriguing link.World journal of gastrointestinal pathophysiology · 2023Review
- Interactions between folate intake and genetic predictors of gene expression levels associated with colorectal cancer risk.Scientific reports · 2022Article
- Colonic Cancer and Acromegaly.Frontiers in endocrinology · 2019Review
- Vitamin Pharmacogenomics: New Insight into Individual Differences in Diseases and Drug Responses.Genomics, proteomics & bioinformatics · 2017Review
- Patients with Acromegaly Presenting with Colon Cancer: A Case Series.Case reports in endocrinology · 2016Article
Corrections and comments
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAcromegalic patients have a higher risk of developing colorectal tumours (CRT). The common C677T polymorphism in methylenetetrahydrofolate reductase (MTHFR) gene is a well-documented CRT risk factor in the general population, but its role in acromegaly has never been examined. PURPOSE: We investigated the influence of MTHFR C677T polymorphism, folate status and other lifestyle, nutritional and disease-specific variables on CRT risk in acromegaly.
methodsClinical data were collected from 115 acromegalic patients (25 with active disease) who underwent a complete colonoscopy. C677T MTHFR genotype, homocysteine, vitamin B12, insulin growth factor and insulin levels, as well as metabolic variables were evaluated.
resultsColorectal tumours were identified in 51 patients (3 adenocarcinomas). MTHFR C677T distribution was in the Hardy-Weinberg equilibrium and similar in patients with or without CRT. There was a correlation between patients with TT genotype and CRT occurrence (Spearman's test: P = 0.03), with an Odds Ratio (OR) of 1.32 (95% CI 0.522-3.362, P NS). A folate-MTHFR genotype interaction on CRT risk was found (P = 0.037): in the lower folate subgroup, TT patients showed a 2.4 higher OR for CRT (95% CI 0.484-11.891; P NS) than C-allele carriers. Smoking (P = 0.007), increased HbA1c levels (P = 0.021), dyslipidaemia (P = 0.049), acromegaly control (P = 0.057), and folate-MTHFR genotype interaction (P = 0.088) were associated with CRT at multivariate analysis.
conclusionsIn this cohort of acromegalic patients, CRT risk is increased in 677TT MTHFR patients with low plasma folate levels. Smoking, high HbA1c levels, dyslipidaemia and disease activity were also associated with increased CRT risk.
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