Cited by 30Neurotransmitter Receptor Influence on BehaviorBirth, Development, and HealthPrenatal Substance Exposure Effects

Intrauterine growth restriction increases impulsive behavior and is associated with altered dopamine transmission in both medial prefrontal and orbitofrontal cortex in female rats

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Alves, Márcio Bonesso, Laureano, Daniela Pereira, Dalle Molle, Roberta, Machado, Tania Diniz, Salvador, Ana Paula de Ascenção, Miguel, Patrícia Maidana, Lupinsky, Derek, Dalmaz, Carla +1 more·2019·Physiology & Behavior

Abstract

Recent studies have implicated a role for impulsivity in the altered eating behaviors and the increased risk for obesity consistently associated with intrauterine growth restriction (IUGR). Changes in dopamine transmission within prefrontal areas are believed to contribute to these adverse outcomes. Here we investigated the impulsive behavior toward a delayed reward and evaluated dopamine levels and its receptors in the medial prefrontal (mPFC) and orbitofrontal (OFC) cortex of female adult rats exposed to IUGR. From day 10 of pregnancy and until birth, Sprague-Dawley dams received either an ad libitum (Adlib) or a 50% food-restricted (FR) diet. At birth, all pups were adopted by Adlib mothers, generating the groups Adlib/Adlib (control) and FR/Adlib (intrauterine growth-restricted). Adult impulsive behavior was evaluated using a Tolerance to Delay of Reward Task. In vivo dopamine responses to sweet food intake were measured by voltammetry, and D1, D2 and DAT levels were accessed by Western Blot. Animals from FR group showed a pronounced aversion to delayed rewards. DA response to sweet food was found to be blunted in the mPFC of FR animals, whereas in the OFC, the DA levels appear to be unaffected by reward consumption. Moreover, FR animals presented reduced D1 receptors in the OFC and a later increase in the mPFC D2 levels. These findings suggest that IUGR female rats are more impulsive and that the associated mechanism involves changes in the dopamine signaling in both the mPFC and OFC.

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  • IUGR is associated with an increase in impulsive behavior due to an altered dopamine signaling in the PFC.

    “Recently it has become clear that IUGR is associated with an increase in impulsive behavior due to an altered dopamine signaling in the PFC [357, 358].”

    From Development of prefrontal cortex (2022) · cites this paper as [357]

    The Abstract and Discussion report increased impulsive behavior alongside altered dopamine signaling in the prefrontal cortex of female IUGR rats. They describe dopamine changes as an associated, likely mechanism, not a demonstrated cause. The citing sentence states causation more definitively and omits the study's restriction to female rats. (LLM, conf=0.88)

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Authors
Alves, M. B., Laureano, D. P., Dalle Molle, R., Machado, T. D., Salvador, A. P. D. A., Miguel, P. M., Lupinsky, D., Dalmaz, C., & Silveira, P. P.
Affiliations
  • Universidade Federal do Rio Grande do Sul (BR)
  • Douglas Mental Health University Institute (CA)
Corresponding author
Alves, Márcio Bonesso
Venue
Physiology & Behavior
Publisher
Elsevier BV
Published
2019-05
Volume
204
Pages
336-346
ISSN
0031-9384 (ISSN-L)
OpenAlex
W2921421048
Cited by
30
References
104
Citations by year
2026: 5 · 2025: 6 · 2024: 4 · 2023: 5 · 2022: 1 · 2021: 5 · 2020: 3 · 2019: 1
FWCI
1.20
Type
journal article
Language
en
Open access
Locations
  • Physiology & Behavior (publishedVersion)
  • PubMed (publishedVersion)
  • Lume (Universidade Federal do Rio Grande do Sul) (submittedVersion, cc-by-nc-sa)
Funders
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Prenatal Substance Exposure Effects
Keywords
fetal growth restriction, impulsivity, delayed rewards, dopamine signaling, medial prefrontal cortex, orbitofrontal cortex, dopamine D1 receptor, dopamine D2 receptor, dopamine transporter, maternal food restriction, female rats, dietary habits, obesity risk
MeSH terms
Animals, Behavior, Animal, Dopamine, Female, Fetal Growth Retardation, Impulsive Behavior, Synaptic Transmission, Pregnancy, Prenatal Exposure Delayed Effects, Rats, Sprague-Dawley, Prefrontal Cortex, Rats

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