• Etude de la dérégulation de l'axe HPA dans la création d'une résistance aux antidépresseurs et son implication dans la prolifération cellulaire et la neurogénèse hippocampique / Wahid Khemissi ; sous la direction de Catherine Belzung et de Mohsen Sakly ( PDF )

One-third of depressed patients included in clinical trials do not respond to antidepressant treatment. Dysregulation of the HPA axis and reduced hippocampal neurogenesis are the main factors of resistance to antidepressants. The objective of this work is to develop a model of resistance to antidepressant related to the HPA axis and to use this model to understand the underlying mechanisms. Our results suggest that dysregulation of negative feedback of the HPA axis at the beginning of the protocol can be a predictor of antidepressant treatment failure in depression. Our protocol shows that the failure of fluoxetine to induce antidepressant effects was associated with poor ability of compounds to stimulate cell proliferation in the dentate gyrus of the hippocampus. Further studies are needed to investigate the causal relationship between these phenomena.

• Dates
  Published on December 15, 2014, Created on December 15, 2014