Evidence map›Paper›PMID 27737689›Full record

ArticleBiology direct2016

Unexpected links reflect the noise in networks.

Anatoly Yambartsev, Michael A Perlin, Yevgeniy Kovchegov, Natalia Shulzhenko, Karina L Mine, Xiaoxi Dong, Andrey Morgun

Abstract read
In one paragraph

Article in Biology direct, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
–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

20 citing papers in PubMed, 2 syntheses or guidelines 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

7 authors.

Anatoly YambartsevDepartment of Statistics, Institute of Mathematics and Statistics, University of Sao Paulo, Sao Paulo, SP, Brazil.
Michael A PerlinCollege of Pharmacy, Oregon State University, Corvallis, OR, USA.
Yevgeniy KovchegovDepartment of Mathematics, College of Science, Oregon State University, Corvallis, OR, USA.
Natalia ShulzhenkoCollege of Veterinary Medicine, Oregon State University, Corvallis, OR, USA.
Karina L MineInstituto de Imunogenética - Associação Fundo de Incentivo à Pesquisa (IGEN-AFIP), São Paulo, SP, Brazil.
Xiaoxi DongCollege of Pharmacy, Oregon State University, Corvallis, OR, USA.
Andrey MorgunCollege of Pharmacy, Oregon State University, Corvallis, OR, USA. anemorgun@hotmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGene covariation networks are commonly used to study biological processes. The inference of gene covariation networks from observational data can be challenging, especially considering the large number of players involved and the small number of biological replicates available for analysis.

resultsWe propose a new statistical method for estimating the number of erroneous edges in reconstructed networks that strongly enhances commonly used inference approaches. This method is based on a special relationship between sign of correlation (positive/negative) and directionality (up/down) of gene regulation, and allows for the identification and removal of approximately half of all erroneous edges. Using the mathematical model of Bayesian networks and positive correlation inequalities we establish a mathematical foundation for our method. Analyzing existing biological datasets, we find a strong correlation between the results of our method and false discovery rate (FDR). Furthermore, simulation analysis demonstrates that our method provides a more accurate estimate of network error than FDR.

conclusionsThus, our study provides a new robust approach for improving reconstruction of covariation networks. REVIEWERS: This article was reviewed by Eugene Koonin, Sergei Maslov, Daniel Yasumasa Takahashi.

Indexed as

Gene Expression RegulationGene Regulatory NetworksBayes TheoremComputational Biology

Identifiers

PMID27737689
PMCPMC5480421

What OpenQuestion holds

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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.