Evidence map›Paper›PMID 28241022›Full record

ArticlePloS one2017

Prognostic impact of pretherapeutic gamma-glutamyltransferase on patients with nasopharyngeal carcinoma.

Yue-Feng Wen, Xian-Zi Yang, Li-Si Zeng, Hai-Hua Peng, Wen-Jin Huang, Long-Mei Cai, Tong-Chong Zhou, Xiao-Dan Lin

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 2 pooled it
0.5field-weighted citation impact, top 36% 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, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
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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

8 authors at 2 institutions in 1 country.

Yue-Feng WenDepartment of Radiotherapy, Cancer Center of Guangzhou Medical University, Guangdong, China.
Xian-Zi YangGuangzhou Institute of Oncology, Cancer Center of Guangzhou Medical University, Guangdong, China.
Li-Si ZengGuangzhou Institute of Oncology, Cancer Center of Guangzhou Medical University, Guangdong, China.
Hai-Hua PengDepartment of Radiotherapy, Cancer Center of Guangzhou Medical University, Guangdong, China.
Wen-Jin HuangDepartment of Radiotherapy, Cancer Center of Guangzhou Medical University, Guangdong, China.
Long-Mei CaiDepartment of Radiotherapy, Cancer Center of Guangzhou Medical University, Guangdong, China.
Tong-Chong ZhouDepartment of Radiotherapy, Cancer Center of Guangzhou Medical University, Guangdong, China.
Xiao-Dan LinDepartment of Radiotherapy, Cancer Center of Guangzhou Medical University, Guangdong, China.ORCID http://orcid.org/0000-0001-5784-9425
Guangzhou Medical University Cancer Hospital · CNGuangzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGamma-glutamyltransferase (GGT) is a membrane-bound enzyme involved in the metabolism of glutathione. Studies suggested that GGT played an important role in the tumor development, progression, invasion and drug resistance and prognosis. The association between GGT and prognosis of patients with nasopharyngeal carcinoma (NPC) was unknown. This study was conducted to investigate the association of pretherapeutic serum level of GGT with clinical-pathological parameters and survival in patients with NPC.

methodsTwo hundred and twenty-two patients with NPC were recruited in this study and were stratified into two GGT risk groups (≤ 34.5 U/L, > 34.5 U/L). The association of pretherapeutic serum GGT levels with clinical-pathological parameters was examined. Univariate and multivariate survival analyses were performed.

findingsThe pretherapeutic serum level of GGT was not associated with gender, age, pathology, T stage, N stage, TNM stage, chemotherapy or radiotherapy in patients with NPC. Patients in the high-risk GGT group had a poorer survival than the low-risk GGT group (3-year overall survival, 74.2% vs. 50.2%, P = 0.001; 3-year progression-free survival, 76.4% vs. 47.1%, P < 0.001; 3-year loco-regional relapse-free survival, 76.4% vs. 51.3%, P < 0.001; 3-year distant metastasis-free survival, 89.5% vs. 66.4%, P < 0.001). Multivariate analysis suggested that patients in the high-risk GGT group had 2.117 (95% confidence interval [CI], 1.225 ∼ 3.659, P = 0.007) times the risk of death, 2.836 (95% CI, 1.765 ∼ 4.557, P < 0.001) times the risk of progression, 2.551 (95% CI, 1.573 ∼ 4.138, P < 0.001) times the risk of relapse, and 3.331 (95% CI, 1.676 ∼ 6.622, P < 0.001) times the risk of metastasis compared with those in the low-risk GGT group.

conclusionThe pretherapeutic serum level of GGT might serve as a novel independent prognostic factor for overall-survival, progression-free survival, loco-regional relapse-free survival and distant metastasis-free survival in patients with NPC.

Indexed as

AdultCarcinomaDisease-Free SurvivalDisease ProgressionDrug Resistance, NeoplasmFemalegamma-GlutamyltransferaseHumansKaplan-Meier EstimateLiver NeoplasmsMagnetic Resonance ImagingMaleMiddle AgedMultivariate AnalysisNasopharyngeal CarcinomaNasopharyngeal Neoplasmsgamma-Glutamyltransferase

Identifiers

PMID28241022
PMCPMC5328260
OpenAlexW2593950989

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LicenceCC BY
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Registered trials

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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.