Evidence map›Paper›PMID 20847279›Full record

ArticleThe Journal of molecular diagnostics : JMD2010

A pyrosequencing-based assay for the rapid detection of IDH1 mutations in clinical samples.

Prashanth Setty, Jennifer Hammes, Thomas Rothämel, Valentina Vladimirova, Christof M Kramm, Torsten Pietsch, Andreas Waha

Open access · bronzeAbstract readEvaluation Study
In one paragraph

Article in The Journal of molecular diagnostics : JMD, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 63 citations in OpenAlex.

  1. Ultra-Fast IntraoperativeInternational journal of molecular sciences · 2025
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  9. Aging · 2019
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  13. Review
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  16. Identification of MGMT promoter methylation sites correlating with gene expression and IDH1 mutation in gliomas.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
  17. Article
  18. Review
  19. Molecular heterogeneity characterizes glioblastoma with lipoblast/adipocyte-like cytology.Virchows Archiv : an international journal of pathology · 2015
    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

7 authors at 2 institutions in 1 country.

Prashanth SettyDepartment of Neuropathology, University of Bonn, Bonn, Germany.
Jennifer Hammes
Thomas Rothämel
Valentina Vladimirova
Christof M Kramm
Torsten Pietsch
Andreas Waha
University of Bonn · DEMedizinische Hochschule Hannover · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations of both the IDH1 and IDH2 (isocitratedehydrogenase enzyme 1 and 2) genes have recently been described in cases of human glioma. Since IDH1 mutations have been associated with better clinical outcome, they are suitable predictive markers for adult glioma patients. We have developed a pyrosequencing assay that allows both the sensitive and rapid detection of mutant IDH1 alleles in DNA extracted from formalin-fixed, paraffin-embedded tissues. PCR products that span exon 4 of IDH1 were used as a template for pyrosequencing. For validation, PCR products were additionally cloned and sequenced conventionally by Sanger sequencing. Sensitivity was measured by titration of wild-type and mutant sequences. PCR kinetic experiments were performed to investigate the influences of PCR cycle number on the accuracy of the assay. We found that a minimum of 5% of mutant IDH1 alleles can easily be detected with the pyrosequencing approach. So far, there are few data regarding IDH1 mutation status in high-grade gliomas of childhood. Therefore, we applied this assay to 47 pediatric high-grade glioma samples (age range 6 weeks to 23 years). Mutations were found in 5/14 astrocytoma III and in 6/33 glioblastomas. In conclusion, we have developed a pyrosequencing-based assay for the detection of mutations at the hotspot regions of IDH1 and provide proof for its applicability as a molecular diagnostic assay for clinical samples.

Indexed as

GliomaMutationAdolescentAdultAgedAllelesBase SequenceBiomarkers, TumorChildChild, PreschoolDNAFemaleHumansInfantIsocitrate DehydrogenaseMaleBiomarkers, TumorDNAIDH1 protein, humanIDH2 protein, humanIsocitrate Dehydrogenase

Identifiers

PMID20847279
PMCPMC2963913
OpenAlexW2069059773

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.