Compounds for the antemortem diagnosis of alzheimer's...

C - Chemistry – Metallurgy – 07 – C

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C07C 245/08 (2006.01) A61K 49/00 (2006.01) A61K 49/04 (2006.01) A61K 49/06 (2006.01) C07C 65/19 (2006.01) C07C 229/64 (2006.01) C07C 233/87 (2006.01) C07C 243/22 (2006.01) C07C 245/10 (2006.01) C07C 251/24 (2006.01) C07C 251/86 (2006.01) C07D 213/80 (2006.01) C07D 261/20 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2309626

Amyloid binding compounds which are derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing Chrysamine G and derivatives thereof and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.

La présente invention concerne, d'une part des composés se liant aux amyloïdes et qui sont des dérivés de la Chrysamine G, et d'autre part des compositions pharmaceutiques contenant ces composés. L'invention concerne également l'utilisation de ces composés pour l'identification in vivo du cerveau atteint par l'Alzheimer, mais aussi pour le diagnostic d'autres états pathologiques caractérisés par l'amylose, notamment la monosomie 21. L'invention concerne aussi des compositions pharmaceutiques à base de Chrysamine G et de ses dérivés, ainsi que l'utilisation de telles compositions pour prévenir la dégénérescence cellulaire et la toxicité induite par les amyloïdes dans les états liés à l'amylose. L'invention concerne en outre l'utilisation de dérivés de Chrysamine G pour colorer ou détecter les dépôts de plaques amyloïdes dans les biopsies ou les tissus autopsiés. L'invention concerne enfin l'utilisation de dérivés de Chrysamine G pour l'analyse quantitative des dépôts de plaques amyloïdes dans l'homogénat de biopsie et les tissus autopsiés.

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