Evidence map›Paper›PMID 26131285›Full record

ArticleInternational journal of clinical and experimental medicine2015

Predictive value of MGMT promoter methylation status in Asian and Caucasian patients with malignant gliomas: a meta-analysis.

Chao Chen, Feng Wang, Yuan Cheng, Yin Cheng, Xueying Ren, Haiqing Huai

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental medicine, 2015. 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
0.2field-weighted citation impact, top 42% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Observational
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 1 institution in 1 country.

Chao ChenDepartment of Medical Oncology of PLA Cancer Center, 81 Hospital of PLA Nanjing 210002, China.
Feng WangDepartment of Medical Oncology of PLA Cancer Center, 81 Hospital of PLA Nanjing 210002, China.
Yuan ChengDepartment of Medical Oncology of PLA Cancer Center, 81 Hospital of PLA Nanjing 210002, China.
Yin ChengDepartment of Medical Oncology of PLA Cancer Center, 81 Hospital of PLA Nanjing 210002, China.
Xueying RenDepartment of Medical Oncology of PLA Cancer Center, 81 Hospital of PLA Nanjing 210002, China.
Haiqing HuaiDepartment of Medical Oncology of PLA Cancer Center, 81 Hospital of PLA Nanjing 210002, China.
81th Hospital of PLA · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prognostic significance of O6-methylguanine-DNA methyltransferase (MGMT) promoter status for survival of patients with malignant gliomas remains controversial. Thus, the meta-analysis was performed in order to identify the impact of MGMT expression on prognosis of malignant gliomas.

methodAn extensive literature search for relevant studies was conducted on PubMed, Embase, Web of Science, Cochrane Library, and CBM databases. Version 12.0 STATA software was used for the current meta-analysis. Hazard ratios (HRs) with their corresponding 95% confidence interval (95% CI) were also calculated to clarify the correlation between MGMT expression and the prognosis of malignant gliomas.

resultsFinal analysis of 2,377 malignant gliomas patients from 32 clinical studies was performed. The meta-analysis results show that MGMT promoter group and unmethylated MGMT group has a significant difference (all P < 0.01). Combined HR of MGMT suggests that the methylated MGMT group has a longer overall survival than the unmethylated MGMT group (P < 0.01), but the Asians don't present a difference between the two groups.

conclusionThe meta-analysis study shows that the elevated MGMT promoter group may have a better prognosis in malignant gliomas patients, but the Asians don't have a better prognosis.

Indexed as

Malignant gliomasmeta-analysisMGMTO6-methylguanine-DNA methyltransferaseprognosistemozolomide

Identifiers

PMID26131285
PMCPMC4483831
OpenAlexW2417361172

What OpenQuestion holds

Textmetadata
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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.