Evidence map›Paper›PMID 26617887›Full record

ArticleInternational journal of clinical and experimental pathology2015

Multidrug resistance protein and topoisomerase 2 alpha expression in non-small cell lung cancer are related with brain metastasis postoperatively.

Huan Huang, Jihong Liu, Qinglian Meng, Guozhong Niu

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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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

4 authors at 1 institution in 1 country.

Huan HuangDepartment of Neurology, Hangzhou First People's Hospital Hangzhou, Zhejiang Province, China.
Jihong LiuDepartment of Chemotherapy, Hangzhou First People's Hospital Hangzhou, Zhejiang Province, China.
Qinglian MengDepartment of Neurology, Hangzhou First People's Hospital Hangzhou, Zhejiang Province, China.
Guozhong NiuDepartment of Neurology, Hangzhou First People's Hospital Hangzhou, Zhejiang Province, China.
Hangzhou First People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to investigate association between expressions of multidrug resistance protein (MRP) and topoisomerase 2 alpha expression in non-small cell lung cancer (TOP2A) and brain metastasis operatively. The expression of MRP and TOP2A were performed using immunohistochemistry (IHC) staining, and the results were analyzed in correlation with clinicopathological data. A total of 286 NSCLC patients who underwent curative surgery between 2007 and 2013 were enrolled in this study. Positive expression of MRP and TOP2A were 62.2% and 37.8%. MRP positive expression in NSCLC was significantly correlated with tumor cell differentiation (P=0.028). TOP2A expression was significantly associated with patients' smoking status, tumor histological type (P<0.05). The positive MRP group had significantly inferior survival rates for 2-year BMFS than did the negative MRP group (79.0% vs. 93.4%, P=0.003) by the Kaplan-Meier method and a log-rank test. Similarly, the positive TOP2A expression was inversely correlated with 2-year BMFS (84.2% vs. 93.4%, P=0.030). Multivariate analysis showed that gender, MRP expression and TOP2A expression were independent prognostic factors for BMFS (P<0.05). Positive expressions of MRP and TOP2A in the tumor tissue are associated with increased risk of developing brain metastases in NSCLC.

Indexed as

AdultAgedAntigens, NeoplasmATP-Binding Cassette, Sub-Family C ProteinsBrain NeoplasmsCarcinoma, Non-Small-Cell LungDNA-Binding ProteinsDNA Topoisomerases, Type IIFemaleHumansImmunohistochemistryLung NeoplasmsMaleMiddle AgedPoly-ADP-Ribose Binding ProteinsRetrospective StudiesAntigens, NeoplasmATP-Binding Cassette, Sub-Family C ProteinsDNA-Binding ProteinsDNA Topoisomerases, Type IImultidrug resistance-associated protein 1Poly-ADP-Ribose Binding ProteinsTOP2A protein, humanbrain metastasisMultidrug resistance proteinnon-small cell lung cancertopoisomerase 2 alpha

Identifiers

PMID26617887
PMCPMC4637703
OpenAlexW2190667819

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.