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Olfactory markers of depression and Alzheimer's disease

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Thèse de doctorat : Sciences de la vie et de la santé, spécialité Neurosciences : Tours : 2014

The aim of this study was to test the hypothesis of olfactory deficits as potential markers of depression. Firstly, two longitudinal studies have evaluated the effect of antidepressant treatment on olfactory and emotional alterations. In two other studies, we wanted to investigate which olfactory deficits could differentiate depression and early stage of Alzheimer’s disease. The results have confirmed the presence of state (for hedonic and emotional aspects) and trait (for alterations involving cognitive capacities) olfactory markers of depression. Besides, we have demonstrated two different profiles of alterations in depression and early stage of Alzheimer’s disease, concerning odors’ memory recognition and identification, which could help to discriminate these two diseases. Other investigations are necessary to confirm the implication of these markers in the efficiency of the therapy, the diagnostic and the take care of patients.

  • Dates
    Published on October 9, 2014, Created on October 9, 2014