Evidence map›Paper›PMID 7684193›Full record

ArticleThe American journal of pathology1993

Aberrant p53 expression in astrocytic neoplasms of the brain: association with proliferation.

H Haapasalo, J Isola, P Sallinen, H Kalimo, H Helin, I Rantala

Open access · greenAbstract read
In one paragraph

Article in The American journal of pathology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.8field-weighted citation impact, top 5% 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

19 citing papers in PubMed, 77 citations in OpenAlex.

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  3. CHEK2 mutations in primary glioblastomas.Journal of neuro-oncology · 2005
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  17. Mutations and immunohistochemistry of p53 and proliferation markers in astrocytic tumors of childhood.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 1995
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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

6 authors at 1 institution in 1 country.

H HaapasaloDepartment of Pathology, Tampere University Hospital, Finland.
J Isola
P Sallinen
H Kalimo
H Helin
I Rantala
Tampere University · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aberrant expression of the p53 suppressor gene was evaluated in 102 cases of astrocytic neoplasms. Immunohistochemical staining with a monoclonal antibody (DO-7) and a polyclonal antibody (CM-1) to p53 protein (both wild type and mutant) on formalin-fixed paraffin sections showed a strong correlation with malignancy grade. The staining was positive in 49% of malignant neoplasms (grades III and IV) and in 19 to 29% of grade II astrocytomas, whereas none of the grade I tumors were positive. p53 expression was significantly associated with proliferation rate determined by immunohistochemical proliferating cell nuclear antigen (PCNA)-staining (median PCNA-labeling index (%): 4.22 (DO-7-positive) versus 1.18 (DO-7-negative), P < 0.0001; 4.02 (CM-1-positive) versus 1.18 (CM-1-negative), P < 0.001). Interestingly, in the glioblastoma group (n = 44), p53-positive tumors had higher proliferation indices, suggesting that histologically similar tumors could be divided into prognostically different subgroups by immunohistochemical demonstration of aberrant p53 expression.

Indexed as

Analysis of VarianceAntigens, NeoplasmAstrocytesBrain NeoplasmsCell DivisionGlioblastomaGliomaHumansImmunohistochemistryNuclear ProteinsProliferating Cell Nuclear AntigenStaining and LabelingTumor Suppressor Protein p53Antigens, NeoplasmNuclear ProteinsProliferating Cell Nuclear AntigenTumor Suppressor Protein p53

Identifiers

PMID7684193
PMCPMC1886904
OpenAlexW267543562

What OpenQuestion holds

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Read underepoch 390

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.