Evidence map›Paper›PMID 30573870›Full record

ArticleLaboratory investigation; a journal of technical methods and pathology2019

Rapid diagnosis of IDH1-mutated gliomas by 2-HG detection with gas chromatography mass spectrometry.

Hao Xu, Yu-Kun Xia, Chun-Jie Li, Jin-Ye Zhang, Ying Liu, Wei Yi, Zhi-Yong Qin, Liang Chen, Zhi-Feng Shi, Kai Quan and 7 more

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Laboratory investigation; a journal of technical methods and pathology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.1field-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

14 citing papers in PubMed, 38 citations in OpenAlex.

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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

17 authors at 5 institutions in 2 countries.

Hao XuDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
Yu-Kun XiaThe Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
Chun-Jie LiThe Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
Jin-Ye ZhangThe Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
Ying LiuDepartment of Pathology, Shanghai Medical College, Fudan University, Shanghai, China.
Wei YiChina Novartis Institutes for BioMedical Research Co. Ltd, Shanghai, China.
Zhi-Yong QinDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
Liang ChenDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
Zhi-Feng ShiDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
Kai QuanDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
Zi-Xiao YangDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.
Kun-Liang GuanThe Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
Yue XiongThe Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
Ho-Keung NgDepartment of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
Dan YeThe Molecular and Cell Biology Lab, Institute of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China. yedan@fudan.edu.cn.
Wei HuaDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China. hs_glioma@126.com.
Ying MaoDepartment of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China. maoying@fudan.edu.cn.
Shanghai Medical College of Fudan University · CNHuashan Hospital · CNFudan University · CNChinese University of Hong Kong · CNNovartis (China) · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The metabolic genes encoding isocitrate dehydrogenase (IDH1, 2) are frequently mutated in gliomas. Mutation of IDH defines a distinct subtype of glioma and predicts therapeutic response. IDH mutation has a remarkable neomorphic activity of converting α-ketoglutarate (α-KG) to 2-hydroxyglutarate (2-HG), which is now commonly referred to as an oncometabolite and biomarker for gliomas. PCR-sequencing (n = 220), immunohistochemistry staining (IHC, n = 220), and gas chromatography mass spectrometry (GC-MS, n = 87) were applied to identify IDH mutation in gliomas, and the sensitivity and specificity of these strategies were compared. PCR-sequencing and IHC staining are reliable for retrospective assessment of IDH1 mutation in gliomas, but both methods usually take 1-2 days, which hinders their application for rapid diagnosis. GC-MS-based methods can detect 2-HG qualitatively and quantitatively, offering information on the IDH1 mutation status in gliomas with the sensitivity and specificity being 100%. Further optimization of the GC-MS based methodology (so called as the mini-column method) enabled us to determine 2-HG within 40 min in glioma samples without complex or time-consuming preparation. Most importantly, the ratio of 2-HG/glutamic acid was shown to be a reliable parameter for determination of mutation status. The mini-column method enables rapid identification of 2-HG, providing a promising strategy for intraoperative diagnosis of IDH1-mutated gliomas in the future.

Indexed as

Brain NeoplasmsGliomaAdultGas Chromatography-Mass SpectrometryGlutaratesHumansImmunohistochemistryIsocitrate DehydrogenaseMiddle AgedMutationalpha-hydroxyglutarateGlutaratesIDH1 protein, humanIsocitrate Dehydrogenase

Identifiers

PMID30573870
OpenAlexW2904619006

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.