Drug preparation comprising .alpha.-lipoic acid, ambroxol...

A - Human Necessities – 61 – K

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Details

A61K 31/401 (2006.01) A61K 31/137 (2006.01) A61K 31/19 (2006.01) A61K 31/385 (2006.01) A61K 31/403 (2006.01) A61K 31/407 (2006.01) A61K 31/4166 (2006.01) A61K 31/472 (2006.01) A61K 45/06 (2006.01) A61P 25/00 (2006.01)

Patent

CA 2455246

The present invention concerns the use of a drug composition for the prevention and the therapy of neurodegenerative diseases (for example ischemic or hemorrhagic stroke, focal and global ischemia, amyotrophic lateral slerosis (ALS), Alzheimer's disease, Parkinson's disease, Hunntington's disease, multiple sclerosis). The combination of effective agents comprises at least two of the following substances: .alpha.-lipoic acid; ambroxol and one or several inhibitors) of the angiotensin-converting enzyme (ACE). It could surprisingly be found in the experiments on which the invention is based that neuronal cells which are particularly sensitive to degenerative insults, have less free constitutional thiol groups than have other cells of the central nervous system (CNS). It was demonstrated that this reduced content of free thiol groups is causally connected to the damaging of those cells after a degenerative event. By using the combination of .alpha.-lipoic acid, ambroxol and/or an ACE inhibitor, the damage after a neurodegenerative insult could be reduced by 40 to 45 %.

La présente invention concerne l'utilisation d'une composition de drogues pour la prévention et le traitement de maladies neurodégénératives (par exemple un AVC ischémique ou hémorragique, une ischémie focale et globale, une sclérose latérale amyotrophique (SLA), la maladie d'Alzheimer, la maladie de Parkinson, la maladie de Huntington, la sclérose en plaques). La combinaison d'agents efficaces comprend au moins deux des substances suivantes : de l'acide .alpha.-lipoïque; de l'ambroxol et un ou plusieurs inhibiteurs de l'enzyme de conversion de l'angiotensine (ECA). Elle pourrait étonnamment se trouver dans les expériences sur lesquelles l'invention est basée proposant que les cellules neuronales qui sont particulièrement sensibles aux attaques dégénératives, ont moins de groupes de thiol libre constitutionnel que les autres cellules du système nerveux central (SNC). Il a été démontré que cette teneur réduite en groupes de thiol libre est directement reliée à la dégradation de ces cellules après un événement dégénératif. En utilisant la combinaison de l'acide .alpha.-lipoïque, de l'ambroxol et/ou d'un inhibiteur ECA, les dommages après une attaque neurodégénérative pourraient être réduits de 40 à 45 %.

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