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Urdangarin A, Goicoa T, Dolores Ugarte M. Space-time interactions in Bayesian disease mapping with recent tools: Making things easier for practitioners. Stat Methods Med Res 2022; 31:1085-1103. [PMID: 35179396 DOI: 10.1177/09622802221079351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Spatio-temporal disease mapping studies the distribution of mortality or incidence risks in space and its evolution in time, and it usually relies on fitting hierarchical Poisson mixed models. These models are complex for practitioners as they generally require adding constraints to correctly identify and interpret the different model terms. However, including constraints may not be straightforward in some recent software packages. This paper focuses on NIMBLE, a library of algorithms that contains among others a configurable system for Markov chain Monte Carlo (MCMC) algorithms. In particular, we show how to fit different spatio-temporal disease mapping models with NIMBLE making emphasis on how to include sum-to-zero constraints to solve identifiability issues when including spatio-temporal interactions. Breast cancer mortality data in Spain during the period 1990-2010 is used for illustration purposes. A simulation study is also conducted to compare NIMBLE with R-INLA in terms of parameter estimates and relative risk estimation. The results are very similar but differences are observed in terms of computing time.
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Affiliation(s)
- Arantxa Urdangarin
- Department of Statistics, Computer Science, and Mathematics, Public University of Navarre, Spain
- INAMAT2 (Institute for Advanced Materials and Mathematics), Public University of Navarre, Spain
| | - Tomás Goicoa
- Department of Statistics, Computer Science, and Mathematics, Public University of Navarre, Spain
- INAMAT (Institute for Advanced Materials and Mathematics), Public University of Navarre, Spain
- Institute of Health Research, IdisNA, Spain
| | - María Dolores Ugarte
- Department of Statistics, Computer Science, and Mathematics, Public University of Navarre, Spain
- INAMAT (Institute for Advanced Materials and Mathematics), Public University of Navarre, Spain
- Institute of Health Research, IdisNA, Spain
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Planell N, Lagani V, Sebastian-Leon P, van der Kloet F, Ewing E, Karathanasis N, Urdangarin A, Arozarena I, Jagodic M, Tsamardinos I, Tarazona S, Conesa A, Tegner J, Gomez-Cabrero D. STATegra: Multi-Omics Data Integration - A Conceptual Scheme With a Bioinformatics Pipeline. Front Genet 2021; 12:620453. [PMID: 33747045 PMCID: PMC7970106 DOI: 10.3389/fgene.2021.620453] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/20/2021] [Indexed: 12/13/2022] Open
Abstract
Technologies for profiling samples using different omics platforms have been at the forefront since the human genome project. Large-scale multi-omics data hold the promise of deciphering different regulatory layers. Yet, while there is a myriad of bioinformatics tools, each multi-omics analysis appears to start from scratch with an arbitrary decision over which tools to use and how to combine them. Therefore, it is an unmet need to conceptualize how to integrate such data and implement and validate pipelines in different cases. We have designed a conceptual framework (STATegra), aiming it to be as generic as possible for multi-omics analysis, combining available multi-omic anlaysis tools (machine learning component analysis, non-parametric data combination, and a multi-omics exploratory analysis) in a step-wise manner. While in several studies, we have previously combined those integrative tools, here, we provide a systematic description of the STATegra framework and its validation using two The Cancer Genome Atlas (TCGA) case studies. For both, the Glioblastoma and the Skin Cutaneous Melanoma (SKCM) cases, we demonstrate an enhanced capacity of the framework (and beyond the individual tools) to identify features and pathways compared to single-omics analysis. Such an integrative multi-omics analysis framework for identifying features and components facilitates the discovery of new biology. Finally, we provide several options for applying the STATegra framework when parametric assumptions are fulfilled and for the case when not all the samples are profiled for all omics. The STATegra framework is built using several tools, which are being integrated step-by-step as OpenSource in the STATegRa Bioconductor package.
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Affiliation(s)
- Nuria Planell
- Translational Bioinformatics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
| | - Vincenzo Lagani
- Institute of Chemical Biology, Ilia State University, Tbilisi, Georgia
- Gnosis Data Analysis P.C., Heraklion, Greece
| | - Patricia Sebastian-Leon
- Department of Genomic and Systems Reproductive Medicine, IVI-RMA (Instituto Valenciano de Infertilidad – Reproductive Medicine Associates) IVI Foundation, Valencia, Spain
| | - Frans van der Kloet
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Ewoud Ewing
- Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Nestoras Karathanasis
- Institute of Computer Science, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Computational Medicine Center, Thomas Jefferson University, Philadelphia, PA, United States
| | - Arantxa Urdangarin
- Translational Bioinformatics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
| | - Imanol Arozarena
- Cancer Signalling Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), Health Research Institute of Navarre (IdiSNA), Pamplona, Spain
| | - Maja Jagodic
- Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Ioannis Tsamardinos
- Gnosis Data Analysis P.C., Heraklion, Greece
- Computer Science Department, University of Crete, Heraklion, Greece
| | - Sonia Tarazona
- Department of Applied Statistics, Operations Research and Quality, Universitat Politècnica de València, València, Spain
| | - Ana Conesa
- Microbiology and Cell Science, Institute for Food and Agricultural Sciences, University of Florida, Gainesville, FL, United States
- Genetics Institute, University of Florida, Gainesville, FL, United States
| | - Jesper Tegner
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Unit of Computational Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- Science for Life Laboratory, Solna, Sweden
| | - David Gomez-Cabrero
- Translational Bioinformatics Unit, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
- Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Unit of Computational Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- Mucosal & Salivary Biology DivisionKing’s College London Dental Institute, London, United Kingdom
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López-Vicario C, Checa A, Urdangarin A, Aguilar F, Alcaraz-Quiles J, Caraceni P, Amorós A, Pavesi M, Gómez-Cabrero D, Trebicka J, Oettl K, Moreau R, Planell N, Arroyo V, Wheelock CE, Clària J. Targeted lipidomics reveals extensive changes in circulating lipid mediators in patients with acutely decompensated cirrhosis. J Hepatol 2020; 73:817-828. [PMID: 32294533 DOI: 10.1016/j.jhep.2020.03.046] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 03/04/2020] [Accepted: 03/25/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND & AIMS Acute-on-chronic liver failure (ACLF) is a newly described syndrome, which develops in patients with acute decompensation of cirrhosis, and is characterized by intense systemic inflammation, multiple organ failures and high short-term mortality. The profile of circulating lipid mediators, which are endogenous signaling molecules that play a major role in inflammation and immunity, is poorly characterized in ACLF. METHODS In the current study, we assessed the profile of lipid mediators by liquid chromatography coupled to tandem mass spectrometry in plasma from patients with acute decompensation of cirrhosis, with (n = 119) and without (n = 127) ACLF, and from healthy controls (n = 18). Measurements were prospectively repeated in 191 patients with acute decompensation of cirrhosis during a 28-day follow-up period. RESULTS Fifty-nine lipid mediators (out of 100) were detected in plasma from cirrhotic patients, of which 16 were significantly associated with disease status. Among these, 11 lipid mediators distinguished patients at any stage from healthy controls, whereas 2 lipid mediators (LTE4 and 12-HHT, both derived from arachidonic acid) shaped a minimal plasma fingerprint that discriminated patients with ACLF from those without. Levels of LTE4 distinguished ACLF grade 3 from ACLF grades 1 and 2, followed the clinical course of the disease (increased with worsening and decreased with improvement) and positively correlated with markers of inflammation and non-apoptotic cell death. Moreover, LTE4 together with LXA5 (derived from eicosapentaenoic acid) and EKODE (derived from linoleic acid) were associated with short-term mortality. LXA5 and EKODE formed a signature associated with coagulation and liver failures. CONCLUSION Taken together, these findings uncover specific lipid mediator profiles associated with disease severity and prognosis in patients with acute decompensation of cirrhosis. LAY SUMMARY Acute-on-chronic liver failure (ACLF) is characterized by intense systemic inflammation, multiple organ failures and high short-term mortality. In the current study, we assessed the plasma lipid profile of 100 bioactive lipid mediators in healthy controls, patients with decompensated cirrhosis, and those who had developed ACLF. We identified lipid mediator signatures associated with inflammation and non-apoptotic cell death that discriminate disease severity and evolution, short-term mortality and organ failures.
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Affiliation(s)
- Cristina López-Vicario
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain; Biochemistry and Molecular Genetics Service, Hospital Clínic-IDIBAPS and CIBERehd, Barcelona, Spain
| | - Antonio Checa
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | | | - Ferran Aguilar
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain
| | - José Alcaraz-Quiles
- Biochemistry and Molecular Genetics Service, Hospital Clínic-IDIBAPS and CIBERehd, Barcelona, Spain
| | - Paolo Caraceni
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Alex Amorós
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain
| | - Marco Pavesi
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain
| | | | - Jonel Trebicka
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain; J.W. Goethe University Hospital, Frankfurt, Germany
| | - Karl Oettl
- Institute of Physiological Chemistry, Center of Physiological Medicine, Medical University of Graz, Graz, Austria
| | - Richard Moreau
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain; Inserm, U1149, Centre de Recherche sur l'Inflammation (CRI), UMRS1149; Université Paris Diderot-Paris 7, Paris, France
| | - Núria Planell
- Translational Bioinformatics Unit, NavarraBiomed, Pamplona, Spain
| | - Vicente Arroyo
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain
| | - Craig E Wheelock
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Joan Clària
- European Foundation for the Study of Chronic Liver Failure (EF-Clif) and Grifols Chair, Barcelona, Spain; Biochemistry and Molecular Genetics Service, Hospital Clínic-IDIBAPS and CIBERehd, Barcelona, Spain; Department of Biomedical Sciences, University of Barcelona, Barcelona, Spain.
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