Evidence map›Paper›PMID 18216871›Full record

ArticleLeukemia2008

Low JAK2V617F allele burden in primary myelofibrosis, compared to either a higher allele burden or unmutated status, is associated with inferior overall and leukemia-free survival.

A Tefferi, T L Lasho, J Huang, C Finke, R A Mesa, C Y Li, W Wu, C A Hanson, A Pardanani

Abstract read
PubMed Publisher
In one paragraph

Article in Leukemia, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 2 pooled it
15.5field-weighted citation impact, top 1% 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

101 citing papers in PubMed, 2 syntheses or guidelines pooled it, 249 citations in OpenAlex.

  1. Guideline
  2. Philadelphia-negative classical myeloproliferative neoplasms: critical concepts and management recommendations from European LeukemiaNet.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2011
    Guideline
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Review
  9. Article
  10. Frequency of JAK2V617F Mutation Zygosity and Impact on Disease Outcome in MPN Patients.Asian Pacific journal of cancer prevention : APJCP · 2025
    Article
  11. Article
  12. Article
  13. Review
  14. Clinical Impact ofTurkish journal of haematology : official journal of Turkish Society of Haematology · 2023
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

41 more citing papers are in PubMed but not listed here.

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.

A TefferiDivision of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA. tefferi.ayalew@mayo.edu
T L Lasho
J Huang
C Finke
R A Mesa
C Y Li
W Wu
C A Hanson
A Pardanani
Mayo Clinic in Arizona · USMayo Clinic · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The clinical relevance of JAK2V617F allele burden in primary myelofibrosis (PMF) has not been previously studied. Bone marrow-derived DNA from 199 patients with PMF was subjected to qualitative (n=199) and quantitative (n=129) analysis for V617F. Mutational frequency was 58% and median mutant allele burden ratio in V617F-positive patients was 29% (range, 1-74%). Multivariable analysis identified older age, platelet count > or =100 x 10(9) l(-1) and peripheral blood blast percentage <3% as being associated with a positive mutational status. The mere presence of the mutation did not affect the incidence of thrombosis (P=0.78), overall survival (P=0.22) or leukemia-free survival (P=0.5). The 129 patients with allele burden information were divided into four groups: V617F-negative (n=53) and V617F-positive with mutant allele burden in the lower quartile (n=19), middle quartiles (n=38) or upper quartile (n=19) range. Kaplan-Meier plots revealed significantly shortened overall (P=0.0008) and leukemia-free (P=0.01) survival for the lower quartile, but not for upper quartile allele burden group; independent prognostic relevance was validated by multivariable analysis. We conclude that low V617F allele burden in PMF might indicate the presence of an overriding V617F-negative clone that confers a more aggressive disease phenotype.

Indexed as

Mutation, MissenseAdultAgedAged, 80 and overAge FactorsAllelesBone Marrow ExaminationDisease-Free SurvivalFemaleGene FrequencyHumansJanus Kinase 2MaleMiddle AgedPlatelet CountPrimary MyelofibrosisJanus Kinase 2

Identifiers

PMID18216871
OpenAlexW2015662674

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.