Evidence map›Paper›PMID 21343879›Full record

ArticleJournal of neuropathology and experimental neurology2011

A sensitive and specific diagnostic panel to distinguish diffuse astrocytoma from astrocytosis: chromosome 7 gain with mutant isocitrate dehydrogenase 1 and p53.

Sandra Camelo-Piragua, Michael Jansen, Aniruddha Ganguly, James ChulMin Kim, Arjola K Cosper, Dora Dias-Santagata, Catherine L Nutt, A John Iafrate, David N Louis

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neuropathology and experimental neurology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
5.9field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 81 citations in OpenAlex.

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  16. The evolving molecular genetics of low-grade glioma.Advances in anatomic pathology · 2015
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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

9 authors at 2 institutions in 1 country.

Sandra Camelo-PiraguaJames Homer Wright Pathology Laboratories, Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.
Michael Jansen
Aniruddha Ganguly
James ChulMin Kim
Arjola K Cosper
Dora Dias-Santagata
Catherine L Nutt
A John Iafrate
David N Louis
Harvard University · USMassachusetts General Hospital · US

Funding

TOWARD A MOLECULAR CLASSIFICATION OF HUMAN GLIOMASR01CA057683 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI LOUIS, DAVID N · 1992 to 2013
$4.7M
NCI NIH HHS CA57683NCI NIH HHS R01 CA057683
6 · The paper itself

Abstract

One of the major challenges of surgical neuropathology is the distinction of diffuse astrocytoma (World Health Organization grade II) from astrocytosis. The most commonly used ancillary tool to solve this problem is p53 immunohistochemistry (IHC), but this is neither sensitive nor specific. Isocitrate dehydrogenase 1 (IDH1) mutations arecommon in lower-grade gliomas, with most causing a specific amino acid change (R132H) that can be detected with a monoclonal antibody. IDH2 mutations are rare, but they also occur in gliomas. In addition, gains of chromosome 7 are common in gliomas. In this study, we assessed the status of p53, IDH1/2, and chromosome 7 to determine the most useful panel to distinguish astrocytoma from astrocytosis. We studied biopsy specimens from 21 World Health Organization grade II diffuse astrocytomas and 20 reactive conditions. The single most sensitive test to identify astrocytoma is fluorescence in situ hybridization for chromosome 7 gain (76.2%). The combination of p53 and mutant IDH1 IHC provides a higher sensitivity (71.4%) than either test alone (47.8%); this combination offers a practical initial approach for the surgical pathologist. The best overall sensitivity (95%) is achieved when fluorescence in situ hybridization for chromosome 7 gain is added to the p53-mutant IDH1 IHC panel.

Indexed as

AstrocytomaBrain NeoplasmsChromosomes, Human, Pair 7Diagnosis, DifferentialGene DosageGenotypeGliosisHumansImmunohistochemistryIn Situ Hybridization, FluorescenceIsocitrate DehydrogenaseIsoenzymesMutationTissue EmbeddingTumor Suppressor Protein p53IDH1 protein, humanIDH2 protein, humanIsocitrate DehydrogenaseIsoenzymesTumor Suppressor Protein p53

Identifiers

PMID21343879
PMCPMC3061457
OpenAlexW2015328333

What OpenQuestion holds

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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.