Evidence map›Paper›PMID 23817809›Full record

ArticleJournal of neuro-oncology2013

A population-based study of low-grade gliomas and mutated isocitrate dehydrogenase 1 (IDH1).

Rikke H Dahlrot, Bjarne W Kristensen, Jacob Hjelmborg, Jørn Herrstedt, Steinbjørn Hansen

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of neuro-oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 3 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

26 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Posttreatment Effect of MGMT Methylation Level on Glioblastoma Survival.Journal of neuropathology and experimental neurology · 2019
    Article
  11. Article
  12. D-2-Hydroxyglutarate Is an Intercellular Mediator in IDH-Mutant Gliomas Inhibiting Complement and T Cells.Clinical cancer research : an official journal of the American Association for Cancer Research · 2018
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

5 authors.

Rikke H DahlrotDepartment of Oncology, Odense University Hospital, Sdr. Boulevard 29, 5000, Odense, Denmark. rikke.dahlrot@ouh.regionsyddanmark.dk
Bjarne W Kristensen
Jacob Hjelmborg
Jørn Herrstedt
Steinbjørn Hansen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Low-grade gliomas (LGG) have a slow growth rate, but transformations into malignant gliomas with a rapid deterioration occur in many patients. The aim of this study was to evaluate clinical prognostic factors in a population-based cohort of patients with LGG. In addition we investigated the expression and prognostic value of the isocitrate dehydrogenase 1 (IDH1) R132H mutation. Seventy-four patients diagnosed between 2005 and 2009 in the Region of Southern Denmark were identified using the Danish Cancer Register and The Danish Pathology Databank. Survival analysis using Cox regression was performed in 52 patients with tumor samples useable for immunohistochemical evaluation of IDH1 status. Patients with a contrast enhancing tumor, neurological deficits, headache, an astrocytic tumor and PS 2-4 had an increased risk of recurrence. In univariate analysis age > 50 years (HR 2.14, 95 % CI 1.08-4.24), having neurological deficit (HR 2.28, 95 % CI 1.15-4.52), receiving post-surgical treatment (HR 2.52, 95 % CI 1.19-5.32), being in performance status 2-4 (HR 1.44, 95 % CI 1.15-1.81), and having an astrocytic tumor (HR 3.79, 95 % CI 1.64-8.73) were associated with poor survival. Mutated IDH1 (mIDH1) was identified in 46 % of the patients and was significantly correlated to a good survival in both univariate (HR 0.24, 95 % CI 0.11-0.53) and in multivariate analysis (HR 0.40, 95 % CI 0.17-0.91). The other clinical variables were not significant when adjusted for the effect of mIDH1 status. We find that young age, the absence of neurologic deficit, PS 0-1 and oligodendroglial histology were associated with better survival. IDH1 status showed independent prognostic information when adjusting for classical prognostic factors, and should be validated in a larger patient population.

Indexed as

AdolescentAdultAgedAged, 80 and overBrain NeoplasmsDenmarkFemaleFollow-Up StudiesGliomaHumansImmunoenzyme TechniquesIsocitrate DehydrogenaseMaleMiddle AgedMutationNeoplasm GradingIDH1 protein, humanIsocitrate Dehydrogenase

Identifiers

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.