Evidence map›Paper›PMID 22168136›Full record

ArticleCell proliferation2012

Improving the time-machine: estimating date of birth of grade II gliomas.

C Gerin, J Pallud, B Grammaticos, E Mandonnet, C Deroulers, P Varlet, L Capelle, L Taillandier, L Bauchet, H Duffau and 1 more

Abstract read
In one paragraph

Article in Cell proliferation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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

15 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. The biology and mathematical modelling of glioma invasion: a review.Journal of the Royal Society, Interface · 2017
    Review
  9. Article
  10. Review
  11. Serum microRNAs as potential noninvasive biomarkers for glioma.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Review
  12. Article
  13. Article
  14. Article
  15. 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

11 authors.

C GerinIMNC Laboratory, Paris VII-Paris XI Universities, CNRS, Orsay, France.
J Pallud
B Grammaticos
E Mandonnet
C Deroulers
P Varlet
L Capelle
L Taillandier
L Bauchet
H Duffau
M Badoual

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesHere we present a model aiming to provide an estimate of time from tumour genesis, for grade II gliomas. The model is based on a differential equation describing the diffusion-proliferation process. We have applied our model to situations where tumour diameter was shown to increase linearly with time, with characteristic diametric velocity. MATERIALS AND

methodsWe have performed numerical simulations to analyse data, on patients with grade II gliomas and to extract information concerning time of tumour biological onset, as well as radiology and distribution of model parameters. RESULTS AND

conclusionsWe show that the estimate of tumour onset obtained from extrapolation using a constant velocity assumption, always underestimates biological tumour age, and that the correction one should add to this estimate is given roughly by 20/v (year), where v is the diametric velocity of expansion of the tumour (expressed in mm/year). Within the assumptions of the model, we have identified two types of tumour: the first corresponds to very slowly growing tumours that appear during adolescence, and the second type corresponds to slowly growing tumours that appear later, during early adulthood. That all these tumours become detectable around a mean patient age of 30 years could be interesting for formulation of strategies for early detection of tumours.

Indexed as

Models, BiologicalCell ProliferationGliomaHumansModels, StatisticalNeoplasm GradingTime Factors

Identifiers

PMID22168136
PMCPMC6496223

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.