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@ARTICLE{Altenbuchinger:145050,
author = {Altenbuchinger, Michael and Weihs, Antoine and Quackenbush,
John and Grabe, Hans Jörgen and Zacharias, Helena U},
title = {{G}aussian and {M}ixed {G}raphical {M}odels as
(multi-)omics data analysis tools.},
journal = {Biochimica et biophysica acta / Gene regulatory mechanisms},
volume = {1863},
number = {6},
issn = {1874-9399},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {DZNE-2020-00410},
pages = {194418},
year = {2020},
abstract = {Gaussian Graphical Models (GGMs) are tools to infer
dependencies between biological variables. Popular
applications are the reconstruction of gene, protein, and
metabolite association networks. GGMs are an exploratory
research tool that can be useful to discover interesting
relations between genes (functional clusters) or to identify
therapeutically interesting genes, but do not necessarily
infer a network in the mechanistic sense. Although GGMs are
well investigated from a theoretical and applied
perspective, important extensions are not well known within
the biological community. GGMs assume, for instance,
multivariate normal distributed data. If this assumption is
violated Mixed Graphical Models (MGMs) can be the better
choice. In this review, we provide the theoretical
foundations of GGMs, present extensions such as MGMs or
multi-class GGMs, and illustrate how those methods can
provide insight in biological mechanisms. We summarize
several applications and present user-friendly estimation
software. This article is part of a Special Issue entitled:
Transcriptional Profiles and Regulatory Gene Networks edited
by Dr. Dr. Federico Manuel Giorgi and Dr. Shaun Mahony.},
subtyp = {Review Article},
keywords = {Gene Regulatory Networks / Genomics / Humans / Metabolomics
/ Models, Genetic / Models, Statistical / Normal
Distribution / Software},
cin = {Rostock / Greifswald common},
ddc = {610},
cid = {I:(DE-2719)6000017},
pnm = {344 - Clinical and Health Care Research (POF3-344)},
pid = {G:(DE-HGF)POF3-344},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31639475},
pmc = {pmc:PMC7166149},
doi = {10.1016/j.bbagrm.2019.194418},
url = {https://pub.dzne.de/record/145050},
}