Emotional eating phenotype is associated with central dopamine D2 receptor binding independent of body mass index

Sarah A. Eisenstein, Allison N. Bischoff, Danuta M. Gredysa, Jo Ann V. Antenor-Dorsey, Jonathan M. Koller, Amal Al-Lozi, Marta Y. Pepino, Samuel Klein, Joel S. Perlmutter, Stephen M. Moerlein, Kevin J. Black, Tamara Hershey

Research output: Contribution to journalArticle

Abstract

PET studies have provided mixed evidence regarding central D2/D3 dopamine receptor binding and its relationship with obesity as measured by body mass index (BMI). Other aspects of obesity may be more tightly coupled to the dopaminergic system. We characterized obesity-associated behaviors and determined if these related to central D2 receptor (D2R) specific binding independent of BMI. Twenty-two obese and 17 normal-weight participants completed eating- and reward-related questionnaires and underwent PET scans using the D2R-selective and nondisplaceable radioligand (N-[ 11 C]methyl)benperidol. Questionnaires were grouped by domain (eating related to emotion, eating related to reward, non-eating behavior motivated by reward or sensitivity to punishment). Normalized, summed scores for each domain were compared between obese and normal-weight groups and correlated with striatal and midbrain D2R binding. Compared to normal-weight individuals, the obese group self-reported higher rates of eating related to both emotion and reward (p < 0.001), greater sensitivity to punishment (p = 0.06), and lower non-food reward behavior (p < 0.01). Across normal-weight and obese participants, self-reported emotional eating and non-food reward behavior positively correlated with striatal (p < 0.05) and midbrain (p < 0.05) D2R binding, respectively. In conclusion, an emotional eating phenotype may reflect altered central D2R function better than other commonly used obesity-related measures such as BMI.

Original languageEnglish (US)
Article number11283
JournalScientific reports
Volume5
DOIs
StatePublished - Jun 12 2015
Externally publishedYes

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Dopamine D2 Receptors
Reward
Body Mass Index
Eating
Phenotype
Obesity
Corpus Striatum
Weights and Measures
Punishment
Mesencephalon
Benperidol
Emotions
Dopamine D3 Receptors
Positron-Emission Tomography

ASJC Scopus subject areas

  • General

Cite this

Eisenstein, S. A., Bischoff, A. N., Gredysa, D. M., Antenor-Dorsey, J. A. V., Koller, J. M., Al-Lozi, A., ... Hershey, T. (2015). Emotional eating phenotype is associated with central dopamine D2 receptor binding independent of body mass index. Scientific reports, 5, [11283]. https://doi.org/10.1038/srep11283

Emotional eating phenotype is associated with central dopamine D2 receptor binding independent of body mass index. / Eisenstein, Sarah A.; Bischoff, Allison N.; Gredysa, Danuta M.; Antenor-Dorsey, Jo Ann V.; Koller, Jonathan M.; Al-Lozi, Amal; Pepino, Marta Y.; Klein, Samuel; Perlmutter, Joel S.; Moerlein, Stephen M.; Black, Kevin J.; Hershey, Tamara.

In: Scientific reports, Vol. 5, 11283, 12.06.2015.

Research output: Contribution to journalArticle

Eisenstein, SA, Bischoff, AN, Gredysa, DM, Antenor-Dorsey, JAV, Koller, JM, Al-Lozi, A, Pepino, MY, Klein, S, Perlmutter, JS, Moerlein, SM, Black, KJ & Hershey, T 2015, 'Emotional eating phenotype is associated with central dopamine D2 receptor binding independent of body mass index', Scientific reports, vol. 5, 11283. https://doi.org/10.1038/srep11283
Eisenstein SA, Bischoff AN, Gredysa DM, Antenor-Dorsey JAV, Koller JM, Al-Lozi A et al. Emotional eating phenotype is associated with central dopamine D2 receptor binding independent of body mass index. Scientific reports. 2015 Jun 12;5. 11283. https://doi.org/10.1038/srep11283
Eisenstein, Sarah A. ; Bischoff, Allison N. ; Gredysa, Danuta M. ; Antenor-Dorsey, Jo Ann V. ; Koller, Jonathan M. ; Al-Lozi, Amal ; Pepino, Marta Y. ; Klein, Samuel ; Perlmutter, Joel S. ; Moerlein, Stephen M. ; Black, Kevin J. ; Hershey, Tamara. / Emotional eating phenotype is associated with central dopamine D2 receptor binding independent of body mass index. In: Scientific reports. 2015 ; Vol. 5.
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