Cited by 66Neurotransmitter Receptor Influence on BehaviorTreatment of Major DepressionNeural and Behavioral Psychology Studies

Attenuated serotonin transporter association between dorsal raphe and ventral striatum in major depression

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Hahn, Andreas, Haeusler, Daniela, Kraus, Christoph, Höflich, Anna S., Kranz, Georg S., Baldinger, Pia, Savli, Markus, Mitterhauser, Markus +4 more·2014·Human Brain Mapping

Abstract

Suffering from anhedonia, patients with major depressive disorder (MDD) exhibit alterations in several parts of the serotonergic neurotransmitter system, which are in turn involved in reward processing. However, previous investigations of the serotonin transporter (SERT) focused on regional differences with varying results depending on the clinical syndrome. Here, we aimed to describe the serotonergic system of MDD patients on a network level by evaluating SERT associations across brain regions. Twenty medication free patients with major depression and 20 healthy controls underwent positron emission tomography using the radioligand [(11) C]DASB. SERT binding potentials (BPND ) were quantified voxel-wise with the multilinear reference tissue model 2. In addition, SERT BPND was extracted from the dorsal raphe nucleus (DRN) as an indicator of midbrain serotonergic neurotransmission. Whole-brain linear regression analysis was applied to evaluate the association of DRN SERT bindings to those in projection areas, which was followed by ANCOVA to assess differences in interregional relationships between patients and controls. Although both groups showed widespread positive correlations, group differences were restricted to decreased SERT associations between the DRN and the ventral striatum (right and left respectively: t=5.85, P<0.05 corrected and t=5.07, P<0.1 corrected) when comparing MDD patients (R(2)=0.11 and 0.24) to healthy subjects (R(2)=0.72 and 0.66, P<0.01 and 0.05 corrected). Adjusting for age and sex did not change these findings. This study indicates a disturbed regulation between key regions involved in reward processing via the SERT. Our interregional approach highlights the importance of evaluating pathophysiological alterations on a network level to gain complementary information in addition to regional investigations.

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  • The serotonergic transmitter system has a modulatory impact on the reward network via different receptors such as 5-HT1A, 5-HT2A receptors, and the serotonin transporter (5-HTT).

    “It was further reported that the serotonergic transmitter system has a modulatory impact on the reward network via different receptors such as the 5-HT1A, 5-HT2A receptors, and the serotonin transporter (5-HTT) (Lanzenberger et al., 2012; Hahn et al., 2014; Kraus et al., 2014; Spies et al., 2015).”

    From Circuit Mechanisms of Reward, Anhedonia, and Depression (2019) · cites this paper as Hahn et al., 2014

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Authors
Hahn, A., Haeusler, D., Kraus, C., Höflich, A. S., Kranz, G. S., Baldinger, P., Savli, M., Mitterhauser, M., Wadsak, W., Karanikas, G., Kasper, S., & Lanzenberger, R.
Affiliations
University of Vienna (AT)
Venue
Human Brain Mapping
Publisher
Wiley
Published
2014-01-17
Volume
35
Issue
8
Pages
3857-3866
ISSN
  • 1065-9471 (ISSN-L)
  • 1097-0193
OpenAlex
W1559509259
Cited by
66
References
56
Citations by year
2026: 3 · 2025: 9 · 2024: 5 · 2023: 4 · 2022: 5 · 2021: 4 · 2020: 3 · 2019: 5 · 2018: 8 · 2017: 7 · 2016: 6 · 2015: 2 · 2014: 5
FWCI
3.05
Type
journal article
Language
en
Open access
Locations
  • Human Brain Mapping (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Austrian National Bank (13214, 13675)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
major depressive disorder, serotonin transporter, dorsal raphe nucleus, ventral striatum, serotonergic system, reward processing, anhedonia, interregional connectivity, brain network dysfunction
MeSH terms
Adult, Benzylamines, Brain, Brain Mapping, Carbon Radioisotopes, Major Depressive Disorder, Female, Humans, Male, Regression Analysis, Signal Processing, Computer-Assisted, Smoking, Radiopharmaceuticals, Positron-Emission Tomography, Serotonin Plasma Membrane Transport Proteins, Dorsal Raphe Nucleus, Ventral Striatum

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