Use of ginkgo extract

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/365 (2006.01) A61P 35/00 (2006.01) A61P 43/00 (2006.01)

Patent

CA 2378052

The present invention is directed to the use of the extract of Ginkgo biloba leaves or isolated Ginkgolide B (GKB), a component of the extract of Ginkgo biloba leaves in a method for decreasing the expression of peripheral-type benzodiazepine receptor (PBR) in cells of a patient in need thereof. Further, the present invention is directed to the use of the extract of Ginkgo biloba leaves or isolated GKB in a method for decreasing the proliferation of cancer cells in a patient. More particularly, the present invention is directed to the use of the extract of Ginkgo biloba leaves or isolated GKB in a method of decreasing cancer cell prolifer-ation in a patient wherein the cancer cell is human breast cancer cell. Even more particularly, the present invention is directed to the use of the extract of Ginkgo biloba leaves or isolated GKB in method of decreasing cancer cell proliferation in a patient wherein the cancer cell is of the aggressive and invasive phenotype and expresses high levels of PBR in comparison to non-aggressive cancer cell.

La présente invention concerne l'utilisation d'extrait de feuilles de Ginkgo biloba ou de Ginkgolide B (GKB) isolé, composant de l'extrait de feuilles de Ginkgo biloba, dans une technique permettant de réduire l'expression du récepteur de benzodiazépine de type périphérique (PBR) dans les cellules d'un patient. Cette invention concerne aussi l'utilisation de cet extrait de feuilles de Ginkgo biloba ou de GKB isolé dans une technique permettant de réduire la prolifération des cellules cancéreuses chez un patient. Cette invention concerne plus particulièrement l'utilisation de cet extrait de feuilles de Ginkgo biloba ou de GKB isolé dans une technique permettant de réduire la prolifération des cellules cancéreuses chez une patiente atteinte d'un cancer du sein. Plus particulièrement encore, cette invention concerne l'utilisation de cet extrait de feuilles de Ginkgo biloba ou de GKB isolé dans une technique permettant de réduire la prolifération des cellules cancéreuses chez un patient dont les cellules cancéreuses sont d'un phénotype agressif et envahissant et dont l'expression du PBR est très élevée par rapport à celle des cellules cancéreuses non agressives.

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