Method and device for the detection of mutations in isolated...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/09 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2514631

The invention relates to extracorporeal methods of analysing the presence or absence of mutations which cause familial hypercholesterolemia. The inventive methods describe the way in which said mutations can be detected using a DNA sample from an individual and comprising the following: chain reaction of the polymerase with primers which are complementary to the low-density lipoprotein receptor gene; analysis of the amplified product by sequencing; restriction analysis; single strand conformation polymorphism techniques; heteroduplex analysis and analysis of a device on top of a biochip glass support on which oligonucleotide probes are disposed, which can be used to detect the aforementioned mutations in the DNA.

L'invention concerne des méthodes extracorporelles permettant d'analyser la présence ou l'absence de mutations causant l'hypercholestérolémie familiale. Les méthodes selon l'invention indiquent la façon de détecter ces mutations à partir, d'une part, d'un échantillon d'ADN d'un individu en procédant à la réaction en chaîne de la polymérase avec des amorces complémentaires au gène du récepteur des lipoprotéines de basse densité, à l'analyse du produit amplifié par séquençage, à l'analyse de restriction, à des techniques des polymorphismes à conformation monocaténaire, à l'analyse par hétéroduplex et, d'autre part, d'un dispositif sur un support de verre "biopuce" sur lequel sont déposées des sondes oligonucléotidiques qui permettent de détecter ces mutations dans l'ADN.

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