Methods for spectral analysis and their applications:...

G - Physics – 01 – R

Patent

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G01R 33/46 (2006.01) G01N 33/483 (2006.01)

Patent

CA 2431905

This invention pertains to methods for the analysis of biological data, particularly spectra, for example, nuclear magnetic resonance (NMR) and other types of spectra. More specifically, the present invention pertains to a method for processing a sample spectrum comprising: replacing each of one or more target regions in said sample spectrum with a corresponding replacement region of a master control spectrum to give a target-replaced sample spectrum, wherein said replacement region has been scaled so as to have the same fraction of the total integrated intensity in said target-replaced sample spectrum as it did in said master control spectrum. Possible applications : methods of identifying a biomarker or biomarker combination for an applied stimilus; classification of an applied stimilus; diagnosis of an applied stimilus; therapeutic monitoring of a subject undergoing therapy; evaluating drug therapy and/or drug efficacy; detecting toxic side-effects of drug; characterising and/or identifying a drug in overdose.

L'invention concerne des procédés d'analyse de données biologiques, précisément les spectres, par exemple, la résonance magnétique nucléaire (RMN) et d'autres types de spectres. Plus précisément, l'invention concerne un procédé de traitement d'un spectre échantillon consistant à: remplacer chacune des régions cibles dudit spectre échantillon avec une région de remplacement correspondante d'un spectre de contrôle maître pour obtenir un spectre échantillon à remplacement de cibles, ladite région de remplacement ayant été mise à l'échelle de manière à présenter la même fraction d'intensité intégrée totale dans ledit spectre échantillon à remplacements de cibles que celle qu'elle a présentée dans le spectre de contrôle maître. Les applications possibles incluent des procédés d'identification d'un marqueur biologique ou d'une association de marqueurs biologiques pour un stimulus appliqué; classification d'un stimulus appliqué; diagnostic d'un stimulus appliqué; surveillance thérapeutique d'un sujet sous traitement; évaluation d'une pharmacothérapie et/ou de l'efficacité d'un médicament; détection des effets secondaires toxiques d'un médicament; et enfin, caractérisation et/ou identification d'un médicament en cas de surdose.

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