Evidence map›Paper›PMID 26722420›Full record

ArticleInternational journal of clinical and experimental pathology2015

Correlations between expression levels of thymidylate synthase, thymidine phosphorylase and dihydropyrimidine dehydrogenase, and efficacy of 5-fluorouracil-based chemotherapy for advanced colorectal cancer.

Wenqi Bai, Yueqin Wu, Ping Zhang, Yanfeng Xi

Abstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Association of XPO1 Overexpression with NF-κB and Ki67 in Colorectal Cancer.Asian Pacific journal of cancer prevention : APJCP · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Targeting nuclear thymidylate biosynthesis.Molecular aspects of medicine · 2017
    Review
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

4 authors.

Wenqi BaiDepartment of Pathology, Shanxi Cancer Hospital, Shanxi Medical University Taiyuan, Shanxi, China.
Yueqin WuDepartment of Pathology, Shanxi Cancer Hospital, Shanxi Medical University Taiyuan, Shanxi, China.
Ping ZhangShanxi Medical University Taiyuan, Shanxi, China.
Yanfeng XiDepartment of Pathology, Shanxi Cancer Hospital, Shanxi Medical University Taiyuan, Shanxi, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The efficacy of 5-fluorouracil (5-FU)-based chemotherapy for colorectal cancer (CRC) widely varies among patients; therefore, it is difficult to accurately predict chemotherapeutic responses. Some recent studies have found that key enzymes in the various metabolic pathways activated by 5-FU present potential predictors of treatment outcome. Of these enzymes, thymidylate synthase (TS), thymidine phosphorylase (TP), and dihydropyrimidine dehydrogenase (DPD) are known to play important roles in the efficacy of therapeutic agents. Here, we measured expression levels of TS, TP, and DPD in formalin-fixed, paraffin-embedded, CRC specimens and paracancerous tissue with normal mucosa by immunohistochemical and fluorescence real-time quantitative polymerase chain reaction techniques. We found no significant differences in TS, TP, and DPD expression levels between CRC specimens and paracancerous tissues (P > 0.05), although overall survival and the chemotherapeutic effect were relatively poor in CRC patients with relatively high expression levels of TS, TP, and DPD, as compared to those with comparatively low expression levels (P < 0.05). Therefore, TS, TP, and DPD mRNA levels appear to be suitable indicators of the efficacy of 5-FU-based chemotherapy and prognosis of CRC.

Indexed as

AdultAgedAntimetabolites, AntineoplasticColorectal NeoplasmsDihydrouracil Dehydrogenase (NADP)DNA PrimersFemaleFluorouracilHumansMaleMiddle AgedPredictive Value of TestsPrognosisThymidine PhosphorylaseThymidylate SynthaseAntimetabolites, AntineoplasticDihydrouracil Dehydrogenase (NADP)DNA PrimersFluorouracilThymidine PhosphorylaseThymidylate Synthase5-fluorouracilchemotherapy efficacyColorectal cancerimmunohistochemistrymetabolic enzymesqRT-PCR

Identifiers

PMID26722420
PMCPMC4680365

What OpenQuestion holds

Textmetadata
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.