Abstract: The invention has for object an in vitro method for performing a differential diagnosis of neurodegenerative diseases selected from early stage of Alzheimer's disease, advanced stage of Alzheimer's disease, mental depression, dementia with Lewy bodies, frontotemporal dementia, and/or vascular dementia; said method being performed in a subject presenting signs of dementia and comprising the steps of (a) determining at least five criteria of said subject, said at least five criteria comprising the age of said subject, a score of said subject to a questionnaire adapted for screening cognitive function, a dopamine, adrenaline and noradrenaline concentration in a blood sample of said subject, (b) comparing said noradrenaline concentration to a predetermined threshold, (c) calculating one global note in relation with each neurodegenerative disease and (d) determining whether said subject suffers from one or more neurodegenerative diseases.

Abstract: The invention is directed to an in vitro method for performing a differential diagnosis of neurodegenerative diseases in a subject, said subject being selected among subjects suffering from Alzheimer's disease, mental depression, dementia with Lewy Body, frontotemporal dementia, and/or vascular dementia. Said method comprises the steps of: (a) determining at least five criteria of said subject, (b) comparing said at least five criteria of said subject with reference values by calculating a global note in relation with each neurodegenerative disease, and (c) determining whether said subject suffers from Alzheimer's disease, mental depression, dementia with Lewy Body, frontotemporal dementia, vascular dementia or mixed dementia.

Abstract: The invention is directed to an in vitro method for performing a differential diagnosis of neurodegenerative diseases in a subject, said subject being selected among subjects suffering from Alzheimer's disease, menial depression, amyotrophic lateral sclerosis, frontotemporal dementia, Parkinson's disease, progressive supranuclear palsy, and/or Parkinson's disease with dementia. Said method comprises the steps of: (a) determining at least five criteria of said subject, (b) comparing said at least five criteria of said subject with reference values by calculating a global note in relation with each neurodegenerative disease, and (c) determining whether said subject suffers from Alzheimer's disease, mental depression, amyotrophic lateral sclerosis, frontotemporal dementia, Parkinson's disease, progressive supranuclear palsy, Parkinson's disease with dementia or mixed dementia.

Abstract: The present invention relates to a method for diagnosing a neurodegenerative disease in a subject, wherein the level of each of at least two catecholamines is measured in a sample of biological fluid from said subject.

Abstract: The present invention relates to a method for diagnosing a neurodegenerative disease in a subject, wherein the level of each of at least two catecholamines is measured in a sample of biological fluid from said subject.