Cited by 278Pain Mechanisms and TreatmentsNeurotransmitter Receptor Influence on BehaviorNeuropeptides and Animal Physiology

Decreased motivation during chronic pain requires long-term depression in the nucleus accumbens

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Schwartz, Neil, Temkin, Paul, Jurado, Sandra, Lim, Byung Kook, Heifets, Boris D., Polepalli, Jai S., Malenka, Robert C.·2014·Science

Abstract

A neuropeptide kills patient's motivation: Chronic pain is not only extremely disturbing and unpleasant; it can also make people depressed and demotivated. What causes these effects? Schwartz et al. discovered that chronic pain causes changes in the way a neuropeptide called galanin affects certain neurons in a brain region called the nucleus accumbens (see the Perspective by Fields). Galanin influences a variety of behaviors, including feeding and certain aspects of pain. In this case, it depresses synaptic transmission at specific excitatory synapses. It does so, in part, by changing the ratio of subunits of an important receptor protein. Science , this issue p. 535 ; see also p. 513

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  • The morphology and function of NAc and vmPFC cells changes with chronification of pain after nerve injury in a way that predicts and causally affects depression-like behavior.

    “The morphology and function of NAc and vmPFC cells changes with the chronification of pain after nerve injury [59],[60],[84] in a way that predicts and causally affects depression-like behavior [84]”

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  1. [15]Yalcin I Biol Psychiatry 70 946 953 2011 21890110

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Authors
Schwartz, N., Temkin, P., Jurado, S., Lim, B. K., Heifets, B. D., Polepalli, J. S., & Malenka, R. C.
Affiliations
  • Stanford Medicine (US)
  • University of Maryland, Baltimore (US)
  • University of California San Diego (US)
Corresponding author
Malenka, Robert C.
Venue
Science
Published
2014-08
Volume
345
Issue
6196
Pages
535-542
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2133656662
Cited by
278
References
54
Citations by year
2026: 8 · 2025: 23 · 2024: 19 · 2023: 18 · 2022: 26 · 2021: 29 · 2020: 24 · 2019: 32 · 2018: 21 · 2017: 24 · 2016: 28 · 2015: 20 · 2014: 6
FWCI
17.29
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
Funders
  • National Institutes of Health
  • School of Medicine, Stanford University
  • National Institute on Drug Abuse (P01DA008227)
Topics
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
chronic pain, motivation, nucleus accumbens, long-term depression, galanin receptor 1, medium spiny neurons, indirect pathway, excitatory synaptic transmission, fatigue
MeSH terms
Animals, Disease Models, Animal, Male, Mice, Inbred C57BL, Motivation, Nucleus Accumbens, Long-Term Synaptic Depression, Receptor, Galanin, Type 1, Mice, Gene Knockdown Techniques, Chronic Pain

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