Academic literature on the topic 'Données multi-omiques'
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Journal articles on the topic "Données multi-omiques"
Castets, Marie, and Cindy Gallerne. "SHARE-4KIDS : une base nationale de données multi-omiques en cancérologie pédiatrique pour partager les données et accélérer la prévention et le soin." Innovations & Thérapeutiques en Oncologie 10, no. 1 (January 1, 2024): 1–5. http://dx.doi.org/10.1684/ito.2024.423.
Full textGorvel, Laurent, Anne-Sophie Chretien, Stéphane Fattori, Marie-Sarah Rouviere, Philippe Rochigneux, Anthony Goncalves, and Daniel Olive. "Apport de l’intelligence artificielle aux données multi-omiques dans les cancers du sein traités par chimiothérapie néo-adjuvante." médecine/sciences 38, no. 10 (October 2022): 772–75. http://dx.doi.org/10.1051/medsci/2022121.
Full textDissertations / Theses on the topic "Données multi-omiques"
Wery, Méline. "Identification de signature causale pathologie par intégration de données multi-omiques." Thesis, Rennes 1, 2020. http://www.theses.fr/2020REN1S071.
Full textSystematic erythematosus lupus is an example of a complex, heterogeneous and multifactorial disease. The identification of signature that can explain the cause of a disease remains an important challenge for the stratification of patients. Classic statistical analysis can hardly be applied when population of interest are heterogeneous and they do not highlight the cause. This thesis presents two methods that answer those issues. First, a transomic model is described in order to structure all the omic data, using semantic Web (RDF). Its supplying is based on a patient-centric approach. SPARQL query interrogates this model and allow the identification of expression Individually-Consistent Trait Loci (eICTLs). It a reasoning association between a SNP and a gene whose the presence of the SNP impact the variation of its gene expression. Those elements provide a reduction of omics data dimension and show a more informative contribution than genomic data. This first method are omics data-driven. Then, the second method is based on the existing regulation dependancies in biological networks. By combining the dynamic of biological system with the formal concept analysis, the generated stable states are automatically classified. This classification enables the enrichment of biological signature, which caracterised a phenotype. Moreover, new hybrid phenotype is identified
Bodein, Antoine. "Mise en place d'approches bioinformatiques innovantes pour l'intégration de données multi-omiques longitudinales." Doctoral thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/69592.
Full textNew high-throughput «omics» technologies, including genomics, epigenomics, transcriptomics, proteomics, metabolomics and metagenomics, have expanded considerably in recent years. Independently, each omics technology is an essential source of knowledge for the study of the human genome, epigenome, transcriptome, proteome, metabolome, and also its microbiota, thus making it possible to identify biomarkers leading to diseases, to identify therapeutic targets, to establish preventive diagnoses and to increase knowledge of living organisms. Cost reduction and ease of multi-omics data acquisition resulted in new experimental designs based on time series in which the same biological sample is sequenced, measured and quantified at several measurement times. Thanks to the combined study of omics technologies and time series, it is possible to capture the changes in expression that take place in a dynamic system for each molecule and get a comprehensive view of the multi-omics interactions, which was inaccessible with a simple standard omics approach. However, dealing with this amount of multi-omics data faces new challenges: continuous technological evolution, large volumes of produced data, heterogeneity, variety of omics data and interpretation of integration results require new analysis methods and innovative tools, capable of identifying useful elements through this multitude of information. In this perspective, we propose several tools and methods to face the challenges related to the integration and interpretation of these particular multi-omics data. Finally, integration of longidinal multi-omics data offers prospects in fields such as precision medicine or for environmental and industrial applications. Democratisation of multi-omics analyses and the implementation of innovative integration and interpretation methods will definitely lead to a deeper understanding of eco-systems biology.
Cogne, Yannick. "Bioinformatique pour l’exploration de la diversité inter-espèces et inter-populations : hétérogénéité & données multi-omiques." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTT033/document.
Full textThe exploitation of omics data combining transcriptomic and proteomic enables the detailed study of the molecular mechanisms of non-model organisms exposed to an environmental stress. The assembly of data from the RNA-seq of non-model organism enables to produce the protein database for the interpretation of spectra generated in shotgun proteomics. In this context, the aim of the PhD work was to optimize the interpretation and analysis of proteomic data through the development of innovative concepts for the construction of protein databases and the exploration of biodiversity. The first step focused on the development of a pretreatment method for RNA-seq data based on proteomic attribution results. The second step was to work on reducing the size of the databases by optimizing the parameters of the automated coding region search. The optimized method enabled the analysis of 7 taxonomic groups of Gammarids representative of the diversity found in natura. The proteomic databases thus produced enabled the inter-population analysis of 40 individual Gammarus pulex proteomes from two sampling sites (polluted vs reference). Statistical analysis based on an "individual" approach has shown an heterogeneity of the biological response within a population of organisms induced by an environmental stress. Different subclusters of molecular mechanisms response have been identified. Finally, the study of the transversality of the biomarkers peptides identified with Gammarus fossarum revealed which are the common ones using both proteomic and transcriptomic data. For this purpose, a software for the exploration of peptide sequences has been developed suggesting potential substitute biomarkers when the defined peptides are not available for some species of gammarids. All these concepts aim to improve the interpretation of data by proteogenomics. This work opens the door to the multi-omic analysis of individuals collected in natura by considering inter-species and intra-population biodiversity
Jagtap, Surabhi. "Multilayer Graph Embeddings for Omics Data Integration in Bioinformatics." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPAST014.
Full textBiological systems are composed of interacting bio-molecules at different molecular levels. With the advent of high-throughput technologies, omics data at their respective molecular level can be easily obtained. These huge, complex multi-omics data can be useful to provide insights into the flow of information at multiple levels, unraveling the mechanisms underlying the biological condition of interest. Integration of different omics data types is often expected to elucidate potential causative changes that lead to specific phenotypes, or targeted treatments. With the recent advances in network science, we choose to handle this integration issue by representing omics data through networks. In this thesis, we have developed three models, namely BraneExp, BraneNet, and BraneMF, for learning node embeddings from multilayer biological networks generated with omics data. We aim to tackle various challenging problems arising in multi-omics data integration, developing expressive and scalable methods capable of leveraging rich structural semantics of realworld networks
Denecker, Thomas. "Bioinformatique et analyse de données multiomiques : principes et applications chez les levures pathogènes Candida glabrata et Candida albicans Functional networks of co-expressed genes to explore iron homeostasis processes in the pathogenic yeast Candida glabrata Efficient, quick and easy-to-use DNA replication timing analysis with START-R suite FAIR_Bioinfo: a turnkey training course and protocol for reproducible computational biology Label-free quantitative proteomics in Candida yeast species: technical and biological replicates to assess data reproducibility Rendre ses projets R plus accessibles grâce à Shiny Pixel: a content management platform for quantitative omics data Empowering the detection of ChIP-seq "basic peaks" (bPeaks) in small eukaryotic genomes with a web user-interactive interface A hypothesis-driven approach identifies CDK4 and CDK6 inhibitors as candidate drugs for treatments of adrenocortical carcinomas Characterization of the replication timing program of 6 human model cell lines." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASL010.
Full textBiological research is changing. First, studies are often based on quantitative experimental approaches. The analysis and the interpretation of the obtained results thus need computer science and statistics. Also, together with studies focused on isolated biological objects, high throughput experimental technologies allow to capture the functioning of biological systems (identification of components as well as the interactions between them). Very large amounts of data are also available in public databases, freely reusable to solve new open questions. Finally, the data in biological research are heterogeneous (digital data, texts, images, biological sequences, etc.) and stored on multiple supports (paper or digital). Thus, "data analysis" has gradually emerged as a key research issue, and in only ten years, the field of "Bioinformatics" has been significantly changed. Having a large amount of data to answer a biological question is often not the main challenge. The real challenge is the ability of researchers to convert the data into information and then into knowledge. In this context, several biological research projects were addressed in this thesis. The first concerns the study of iron homeostasis in the pathogenic yeast Candida glabrata. The second concerns the systematic investigation of post-translational modifications of proteins in the pathogenic yeast Candida albicans. In these two projects, omics data were used: transcriptomics and proteomics. Appropriate bioinformatics and analysis tools were developed, leading to the emergence of new research hypotheses. Particular and constant attention has also been paid to the question of data reproducibility and sharing of results with the scientific community
Abd-Rabbo, Diala. "Beyond hairballs: depicting complexity of a kinase-phosphatase network in the budding yeast." Thèse, 2017. http://hdl.handle.net/1866/19318.
Full textBook chapters on the topic "Données multi-omiques"
BONNAFFOUX, Arnaud. "Inférence de réseaux de régulation de gènes à partir de données dynamiques multi-échelles." In Approches symboliques de la modélisation et de l’analyse des systèmes biologiques, 7–50. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9029.ch1.
Full textDÉJEAN, Sébastien, and Kim-Anh LÊ CAO. "Modèles multivariés pour l’intégration de données et la sélection de biomarqueurs dans les données omiques." In Intégration de données biologiques, 211–69. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9030.ch7.
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