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Approche diagnostic du patient infecté par méthode des microarrays
Authors: --- ---
Year: 2017 Publisher: Bruxelles: UCL. Faculté de pharmacie et des sciences biomédicales,

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Actuellement, le diagnostic d'infections sur des prélèvements en routine clinique se fait par méthodes conventionnelles (coloration de Gram, cultures) avec comme inconvénient majeur, un délai de résultat de 1 à 2 jours en moyenne. L'émergence de méthodes par spectrométrie de masse couplées à une source d'ionisation (MALDI-TOF) ou encore de méthodes par immunoassays ont permis de réduire ce temps d'analyse. Ces dernières années, les recherches se sont également intensifiées dans le domaine de la biologie moléculaire, avec les PCR notamment. Dans ce travail seront traitées les microarrays, une méthode par biologie moléculaire se basant sur l'hybridation entre une cible (acides nucléiques) et une sonde spécifique. Sur base de nombreuses études réalisées sur cette technologie, les performances de différentes microarrays (qu'elles soient commercialisées ou non) ont ainsi été comparées, en fonction de la pathologie suspectée (infections du tractus respiratoire, du système nerveux central, du tractus digestif, du sang, du système ostéo-articulaire ou du système urinaire). La rapidité d'analyse (moins de 5 heures en moyenne) est un atout majeur de cette technologie permettant ainsi une prise en charge adéquate du patient infecté. En matière de performance, les microarrays ont une sensibilité similaire aux méthodes par culture, et ont une excellente spécificité, mais le multiplexage offre l'avantage d'analyser simultanément plusieurs pathogènes sur le même échantillon en même temps. Actuellement, les limitations de ces microarrays résultent en leur absence de détection de certains germes (non-inclus dans les panels de détection) ainsi que leur coût d'analyse élevé. Cependant, certaines études ont mis en avant le potentiel économique de certains kits lors de leur implémentation en routine clinique. Il faudrait donc réaliser de plus amples études à plus large échelle pour analyser le réel impact économique d'une éventuelle implémentation de ces panels en routine clinique. Currently, the diagnosis of an infected routine sample is made by conventional methods (Gram stains, cultures) which bears one major inconvenient: a 1 to 2 days average delay for results. The emergence of methods using spectrometry coupled with a source of ionization (MALDI-TOF) or Immunoassay have now made it possible to reduce the analysis’ time. Over past few years, research has been intensified in the field of molecular biology, especially with PCR analysis. This work will cover microarrays, a molecular method using hybridation between a target (nucleic acids) and a specific primer. Based on numerous studies, these different types of microarrays (commercialized or not) were compared according to the suspected pathology (respiratory tract, central nervous system, gastrointestinal, blood, osteo-articular system, or urinary tract). The time of analysis (less than 5 hours on average) is a major advantage for this technology which allows a rapid and appropriate care of patient. In terms of performance, microarrays have a sensitivity that is comparable to methods by culture and have excellent specificity but multiplexing allows a simultaneous analysis of different pathogens on the same sample. Nowadays, microarrays remain limited by their inability to detect certain pathogens (not included in the detection panels) as well as its cost. However certain studies have shown results of economic benefits when certain kits are used in routine clinics. Further studies should be carried on a broader scale to analysis the real economic impact of a potential implementation of these panels in routine clinics.


Book
Antibody Arrays : Methods and Protocols
Authors: ---
ISBN: 1071610643 1071610635 Year: 2021 Publisher: New York, NY : Springer US : Imprint: Humana,

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This detailed book presents a technical overview and practical methodology of a variety of antibody array formats and technologies. As advantages and disadvantages of antibody array types are explored, the volume also delves into practical applications of antibody arrays pertaining to investigations of specific research topics and biological processes as well as guidance on the methods of processing, analysis, and storage of array data. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Antibody Arrays: Methods and Protocols aims to empower the reader with the information required to select the most appropriate array for their research application, with the technical knowledge to use and process the array, and with the knowledge to perform analysis that realizes the maximum benefit from the data generated.

Keywords

Immunoglobulins. --- Protein microarrays. --- Antibodies. --- Protein Array Analysis. --- Microarray Analysis. --- Microarrays, Protein --- Peptide biochips --- Peptide microarrays --- Protein biochips --- Biochips --- Immobilized proteins --- Antibodies --- Immune globulins --- Immune serum globulin --- Blood proteins --- Globulins --- Plasma cells --- Antibody diversity --- Antigens --- Bacterial immunoglobulin-binding proteins --- Microarray Analytical Devices --- Microarray Microchips --- Nanoarray Analytical Devices --- Analysis, Microarray --- Analytical Device, Microarray --- Analytical Device, Nanoarray --- Analytical Devices, Microarray --- Analytical Devices, Nanoarray --- Device, Microarray Analytical --- Device, Nanoarray Analytical --- Devices, Microarray Analytical --- Devices, Nanoarray Analytical --- Microarray Analytical Device --- Microarray Microchip --- Microchip, Microarray --- Microchips, Microarray --- Nanoarray Analytical Device --- Protein Array Assay --- Protein Arrays --- Protein Biochips --- Protein Microarray Analysis --- Protein Microarray Assay --- Protein Profiling Microarrays --- ProteinChip --- Protein Chips --- Protein Microarrays --- Protein Microchips --- Protein Profiling Chips --- Analyses, Protein Array --- Analyses, Protein Microarray --- Analysis, Protein Array --- Analysis, Protein Microarray --- Array Analyses, Protein --- Array Analysis, Protein --- Array Assay, Protein --- Array Assays, Protein --- Array, Protein --- Arrays, Protein --- Assay, Protein Array --- Assay, Protein Microarray --- Assays, Protein Array --- Assays, Protein Microarray --- Biochip, Protein --- Biochips, Protein --- Chip, Protein --- Chip, Protein Profiling --- Chips, Protein --- Chips, Protein Profiling --- Microarray Analyses, Protein --- Microarray Analysis, Protein --- Microarray Assay, Protein --- Microarray Assays, Protein --- Microarray, Protein --- Microarray, Protein Profiling --- Microarrays, Protein Profiling --- Microchip, Protein --- Microchips, Protein --- Profiling Chip, Protein --- Profiling Chips, Protein --- Profiling Microarray, Protein --- Profiling Microarrays, Protein --- Protein Array --- Protein Array Analyses --- Protein Array Assays --- Protein Biochip --- Protein Chip --- Protein Microarray --- Protein Microarray Analyses --- Protein Microarray Assays --- Protein Microchip --- Protein Profiling Chip --- Protein Profiling Microarray --- ProteinChips --- Protein Interaction Mapping --- Biology—Technique. --- Chemistry. --- Biological Techniques. --- Physical sciences


Periodical
Genomics Data
ISSN: 22135960 Publisher: United States Elsevier

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Book
Laserbasierte Verfahren zur Herstellung hochdichter Peptidarrays
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ISBN: 1000041118 3731502224 Year: 2014 Publisher: KIT Scientific Publishing

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In this thesis, different laser based methods to produce high density peptide arrays were developed. They use laser radiation to structure special micro particles with amino acids. The particles are heated and fused to a substrate (Combinatorial Laser Fusing) or they are transferred trough a shock wave to another substrate (Combinatorial Laser Transfer). This way, microarrays with up to 1 million spots per cm² are produced whereas the number of chemical coupling cycles is minimized.


Periodical
Microarrays.
Year: 2012 Publisher: Basel, Switzerland : MDPI AG,

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Periodical
Microarrays.
Year: 2012 Publisher: Basel, Switzerland : MDPI AG,

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Periodical
Microarrays.
Year: 2012 Publisher: Basel, Switzerland : MDPI AG,

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Book
Microarray analysis of the physical genome : methods and protocols
ISBN: 9781603271912 Year: 2009 Publisher: New York (N.Y.) : Springer,

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Periodical
High-throughput.
Author:
ISSN: 25715135 Year: 2017 Publisher: Basel, Switzerland : MDPI,

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Microarrays & microplates : applications in biomedical sciences
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ISBN: 185996074X 9781859960745 Year: 2003 Publisher: Oxford BIOS Scientific Publishers

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&#13;The 'Advanced Methods' series is intended for advanced undergraduates, &#13;postgraduates and established research scientists. Titles in the series &#13;are designed to cover current important areas of research in life &#13;sciences, and include both theoretical background and detailed &#13;protocols. The aim is to give researchers sufficient theory, supported &#13;by references, to take the given protocols and adapt them to their &#13;particular experimental systems. Microarrays and Microplates title &#13;looks at the new microarray and microplate-based technologies which &#13;facilitate large-scale analysis of DNA sequence variants, mRNA &#13;molecules and proteins. The book provides a review of the various &#13;methodologies being used to identify genetic variants and gene &#13;regulation and guides readers through both the application of these &#13;methodologies and experimental procedures.&#13;&#13;

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