Evidence map›Paper›PMID 22326863›Full record

ArticleNeuro-oncology2012

Glioblastoma with an oligodendroglioma component: distinct clinical behavior, genetic alterations, and outcome.

Yongzhi Wang, Shouwei Li, Lingchao Chen, Gan You, Zhaoshi Bao, Wei Yan, Zhendong Shi, Yin Chen, Kun Yao, Wei Zhang and 2 more

Abstract read
In one paragraph

Article in Neuro-oncology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
–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

38 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  8. Cancers · 2021
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  16. Expression and prognostic value of the aldehyde dehydrogenase 1 (ALDH1) and N-myc downstream regulated gene 2 (NDRG2) as potential markers in human astrocytomas.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
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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

12 authors.

Yongzhi WangDepartment of Neurosurgery, Beijing Tiantan Hospital, Beijing, China.
Shouwei Li
Lingchao Chen
Gan You
Zhaoshi Bao
Wei Yan
Zhendong Shi
Yin Chen
Kun Yao
Wei Zhang
Chunsheng Kang
Tao Jiang

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastomas (GBMs) containing foci that resemble oligodendroglioma are defined as GBM with oligodendroglioma component (GBMO). However, whether GBMO is a distinct clinicopathological variant of GBM or merely represents a divergent pattern of differentiation remains controversial. We investigated 219 consecutive primary GBMs, of which 40 (18.3%) were confirmed as GBMOs. The clinical features and genetic profiles of the GBMOs were analyzed and compared with the conventional GBMs. The GBMO group showed more frequent tumor-related seizures (P= .027), higher frequency of IDH1 mutation (31% vs. <5%, P= .015), lower MGMT expression (P= .016), and longer survival (19.0 vs. 13.2 months; P= .022). In multivariate Cox regression analyses, presence of an oligodendroglioma component was predictive of longer survival (P= .001), but the extent of the oligodendroglial component appeared not to be linked to prognosis (P= .664). The codeletions of 1p/19q, somewhat surprisingly, were infrequent (<5%) in both GBMO and conventional GBM. In addition, the response to aggressive therapy differed: the GBMO group had no survival advantage associated with aggressive treatment protocols, whereas a clear treatment effect was observed in the conventional GBM group. Collectively, the clinical behavior and genetic alterations of GBMO thus differs from those of conventional GBM. Presence of an oligodendroglial component may therefore be a useful classification and stratification variable in therapeutic trials of GBMs.

Indexed as

Brain NeoplasmsGlioblastomaOligodendrogliomaAdultAgedChromosomes, Human, Pair 1Chromosomes, Human, Pair 19Disease-Free SurvivalDNA Modification MethylasesDNA Repair EnzymesFemaleHumansIn Situ Hybridization, FluorescenceIsocitrate DehydrogenaseLoss of HeterozygosityMaleDNA Modification MethylasesDNA Repair EnzymesIDH1 protein, humanIsocitrate DehydrogenaseMGMT protein, humanTumor Suppressor Proteins

Identifiers

PMID22326863
PMCPMC3309852

What OpenQuestion holds

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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.