Evidence map›Paper›PMID 28906403›Full record

SynthesisMedicine2017

The role of serum angiopoietin-2 levels in progression and prognosis of lung cancer: A meta-analysis.

Yuyang Xu, Yingyi Zhang, Zihuai Wang, Nan Chen, Jian Zhou, Lunxu Liu

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

22 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Advances in lymphatic metastasis of non-small cell lung cancer.Cell communication and signaling : CCS · 2024
    Review
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  19. Article
  20. [Research Advances of Ang-2 in Non-small Cell Lung Cancer].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2018
    Review
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 2 institutions in 1 country.

Yuyang XuDepartment of Thoracic Surgery, West China Hospital Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer West China School of Medicine, Sichuan University, Chengdu, China.
Yingyi Zhang
Zihuai Wang
Nan Chen
Jian Zhou
Lunxu Liu
Sichuan University · CNWest China Hospital of Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAngiogenesis is an essential process in the development and progression of malignant tumors including lung cancer, in which angiopoietin-2 (Ang-2) plays an important role. The objective of this study was to assess the prognostic value of serum Ang-2 levels in patients with lung cancer.

methodsA comprehensive systematic electronic search was performed in the Pubmed, Embase, Web of Science, china national knowledge infrastructure, and VIP databases update to October, 2016 (qikan.cqvip.com). Literatures examining the relevance of serum Ang-2 levels to progression and prognosis of lung cancer were eligible for our study. Standardized mean differences (SMD) with 95% confidence interval (95% CI) and a P value were applied to compare continuous variables, and hazard ratio (HR) with 95% CI as well as P value were applied for prognostic role.

resultsTwenty studies with 1911 patients met the eligibility criteria. Among them, 7 studies with 575 patients with lung cancer assessed the association between expression of serum Ang-2 and prognosis. According to our results, higher levels of serum Ang-2 were associated with the later stage of tumor. Serum Ang-2 levels were significantly lower in stage I than in stage II (SMD: -0.51; 95% CI: -0.75 to -0.27; P < .001), in stage II than in stage III (SMD: -0.52; 95% CI: -0.80 to -0.24; P < .001), in stage III than in stage IV (SMD: -0.58; 95% CI: -0.93 to -0.23; P = .001). In addition, serum Ang-2 levels were higher in patients with lymph node metastasis (SMD: 1.06; 95% CI, 0.57-1.56; P < .001). Meanwhile, patients with lung cancer with higher levels of serum Ang-2 were associated with a significant poorer prognosis when compared to those with lower serum Ang-2 levels (HR: 1.64; 95% CI: 1.20-2.25; P = .002), and this role was further detected when stratified by ethnicity and histological type.

conclusionsThis systematic review and meta-analysis suggested that serum Ang-2 levels might be a potential predictor for staging, and were associated with prognosis of lung cancer.

Indexed as

Angiopoietin-2Biomarkers, TumorDisease ProgressionHumansLung NeoplasmsPrognosisAngiopoietin-2ANGPT2 protein, humanBiomarkers, Tumor

Identifiers

PMID28906403
PMCPMC5604672
OpenAlexW2755839425

What OpenQuestion holds

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LicenceCC BY-SA
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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.