Interplay of Val66Met and BDNF methylation: effect on reward learning and cognitive performance in major depression.

ABSTRACT:

Background

There is a growing interest in the role of brain-derived neurotrophic factor (BDNF) in major depressive disorder (MDD). BDNF potentially exhibits opposite effects in the pathways linked to anhedonia and reward learning on the one hand and cognitive performance, on the other hand. However, the epigenetic mechanisms behind this remain unknown. In the present study, we aimed to investigate the interplay of DNA methylation of different BDNF exons and the common Val66Met polymorphism on anhedonia, reward learning and cognitive performance in MDD.

Methods

We recruited 80 depressed patients and 58 age- and gender-matched healthy controls. Participants underwent clinical assessment including neuropsychological testing and a probabilistic reward task to assess reward learn

SUBMITTER: Bakusic J 

PROVIDER: S-EPMC8323304 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature