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Steinhardt J, Hanssen H, Heldmann M, Neumann A, Münchau A, Schramm P, Rasche D, Saryyeva A, Büntjen L, Voges J, Tronnier V, Krauss JK, Münte TF, Brüggemann N. Sweets for my sweet: modulation of the limbic system drives salience for sweet foods after deep brain stimulation in Parkinson's disease. J Neurol Neurosurg Psychiatry 2022; 93:324-331. [PMID: 34911783 DOI: 10.1136/jnnp-2021-326280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 10/25/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND An increase in body weight is observed in the majority of patients with Parkinson's disease (PD) who undergo deep brain stimulation (DBS) of the subthalamic nucleus (STN) although the mechanisms are unclear. OBJECTIVES To identify the stimulation-dependent effects on reward-associated and attention-associated neural networks and to determine whether these alterations in functional connectivity are associated with the local impact of DBS on different STN parcellations. METHODS We acquired functional task-related MRI data from 21 patients with PD during active and inactive STN DBS and 19 controls while performing a food viewing paradigm. Electrode placement in the STN was localised using a state-of-the-art approach. Based on the 3D model, the local impact of STN DBS was estimated. RESULTS STN DBS resulted in a mean improvement of motor function of 22.6%±15.5% (on medication) and an increase of body weight of ~4 kg within 2 years of stimulation. DBS of the limbic proportion of the STN was associated with body weight gain and an increased functional connectivity within the salience network and at the same time with a decreased activity within the reward-related network in the context of sweet food images. CONCLUSIONS Our findings indicate increased selective attention for high-caloric foods and a sweet food seeking-like behaviour after DBS particularly when the limbic proportion of the STN was stimulated.
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Affiliation(s)
- Julia Steinhardt
- Department of Neurology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany
| | - Henrike Hanssen
- Department of Neurology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany.,Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Marcus Heldmann
- Department of Neurology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany.,Institute of Psychology II, University of Lübeck, Lübeck, Germany
| | | | - Alexander Münchau
- Institute of Systems Motor Science, University of Lübeck, Lübeck, Germany
| | - Peter Schramm
- Institute of Neuroradiology, University of Lübeck, Lübeck, Germany
| | - Dirk Rasche
- Department of Neurosurgery, University of Lübeck, Lübeck, Germany
| | - Assel Saryyeva
- Department of Neurosurgery, Hannover Medical School, Hanover, Niedersachsen, Germany
| | - Lars Büntjen
- Department of Neurology and Stereotactic Neurosurgery, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Jürgen Voges
- Department of Neurology and Stereotactic Neurosurgery, Otto von Guericke University Magdeburg, Magdeburg, Germany.,Leibniz Institute of Neurobiology, Magdeburg, Germany
| | - Volker Tronnier
- Department of Neurosurgery, University of Lübeck, Lübeck, Germany
| | - Joachim K Krauss
- Department of Neurosurgery, Hannover Medical School, Hanover, Niedersachsen, Germany
| | - Thomas F Münte
- Department of Neurology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany.,Institute of Psychology II, University of Lübeck, Lübeck, Germany
| | - Norbert Brüggemann
- Department of Neurology, Center of Brain, Behavior and Metabolism, University of Lübeck, Lübeck, Germany .,Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
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