Evidence map›Paper›PMID 39816293›Full record

ArticleCureus2024

Methylenetetrahydrofolate Reductase (MTHFR) Variants and Severe Capecitabine Toxicity: A Case Report and Review of Literature.

Li Lingyan, Wang Linjun, Zhong Wenjun

Abstract readCase Reports
In one paragraph

Article in Cureus, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

3 authors.

Li LingyanOncology, Qiannan People's Hospital, Duyun, CHN.
Wang LinjunOncology, Qiannan People's Hospital, Duyun, CHN.
Zhong WenjunOncology, Qiannan People's Hospital, Duyun, CHN.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Capecitabine is an oral prodrug metabolized into 5-fluorouracil (5-FU) and serves as a representative anticancer agent. While fluoropyrimidine treatment is usually well-tolerated, a subset of patients unfortunately experiences severe and sometimes life-threatening toxicity related to these compounds. This adverse reaction is frequently attributed to partial or complete deficiencies in the dihydropyrimidine dehydrogenase (DPD) enzyme. However, some patients may still suffer from severe toxic effects despite normal DPD screening results when treated with capecitabine. This paper presents the case of a Chinese woman with stage IIIB moderately differentiated adenocarcinoma of the lower rectum (cT3N2aM0) who exhibited severe toxicity after two weeks of neoadjuvant concurrent chemoradiotherapy in TNT mode at a low dose (825mg/m2 bid) of capecitabine. We found that this severe toxicity might be attributable to insufficient methylenetetrahydrofolate reductase (MTHFR) activity. To our knowledge, such reports are scarce in the medical literature concerning the Chinese population.

Indexed as

5-fluorouracilcapecitabinecolorectal cancerdihydropyrimidine dehydrogenasemethylenetetrahydrofolate reductasetoxicity

Identifiers

PMID39816293
PMCPMC11734037

What Socratic 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 Socratic graph.