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Mood disorders, especially depression, are a major cause of human disability. The loss of pleasure (anhedonia) is a common, severely debilitating symptom of clinical depression. Experimental animal models are widely used to better understand depression pathogenesis and to develop novel antidepressant therapies. In rodents, various experimental models of anhedonia have already been developed and extensively validated. Complementing rodent studies, the zebrafish (Danio rerio) is emerging as a powerful model organism to assess pathobiological mechanisms of affective disorders, including depression. Here, we critically discuss the potential of zebrafish for modeling anhedonia and studying its molecular mechanisms and translational implications. © The Author(s) 2021. Published by Oxford University Press on behalf of CINP.


Murilo S de Abreu, Fabiano Costa, Ana C V V Giacomini, Konstantin A Demin, Konstantin N Zabegalov, Gleb O Maslov, Yuriy M Kositsyn, Elena V Petersen, Tatiana Strekalova, Denis B Rosemberg, Allan V Kalueff. Towards Modeling Anhedonia and Its Treatment in Zebrafish. The international journal of neuropsychopharmacology. 2022 Apr 19;25(4):293-306

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PMID: 34918075

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