Lost in translation?: On the need for convergence in animal and human studies 
on the role of dopamine in diet-induced obesity

Janssen, Lieneke; Herzog, Nadine; Waltmann, Maria; Breuer, Nora; Wiencke, Kathleen; Rausch, Franziska; Hartmann, Hendrik; Poessel, Maria; Horstmann, Annette

doi:10.1007/s40429-019-00268-w

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Lost in translation?: On the need for convergence in animal and human studies on the role of dopamine in diet-induced obesity

MPS-Authors

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Janssen, Lieneke
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

/persons/resource/persons214042

Herzog, Nadine
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

/persons/resource/persons213894

Waltmann, Maria
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

/persons/resource/persons241756

Breuer, Nora
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

/persons/resource/persons199026

Wiencke, Kathleen
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

/persons/resource/persons228103

Rausch, Franziska
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

/persons/resource/persons227297

Hartmann, Hendrik
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

/persons/resource/persons199028

Poessel, Maria
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

/persons/resource/persons19734

Horstmann, Annette
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
External Organizations;

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Citation

Janssen, L., Herzog, N., Waltmann, M., Breuer, N., Wiencke, K., Rausch, F., et al. (2019). Lost in translation?: On the need for convergence in animal and human studies on the role of dopamine in diet-induced obesity. Current Addiction Reports, 6(3), 229-257. doi:10.1007/s40429-019-00268-w.

Cite as: https://hdl.handle.net/21.11116/0000-0004-B9DA-6

Abstract

Purpose of Review

Animal and human studies suggest that diet-induced obesity and plasticity in the central dopaminergic system are linked. However, it is unclear whether observed changes depend on diet or obesity, and whether they are specific to brain regions and cognitive functions. Here, we focus on neural and cognitive changes in frontostriatal circuits.
Recent Findings

Both diet and obesity affect dopaminergic transmission. However, site and direction of effects are inconsistent across species and studies. Non-specific changes are observed spanning all frontostriatal loops, from sensory input to motivated behaviour. Given the impact of peripheral signals on central dopaminergic signalling and the interaction between the frontostriatal loops, modulation of dopamine likely propagates through all loops and, thus, affects behaviour on various levels of complexity.
Summary

To improve convergence between animal and human studies on diet-induced obesity, animal studies should include sophisticated cognitive measures and diets resembling human obesogenic diets, and human studies should adopt diet interventions and longitudinal designs.