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Chronic pramipexole treatment increases tolerance for sucrose in normal and ventral tegmental lesioned rats

Overview of attention for article published in Frontiers in Neuroscience, January 2015
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Title
Chronic pramipexole treatment increases tolerance for sucrose in normal and ventral tegmental lesioned rats
Published in
Frontiers in Neuroscience, January 2015
DOI 10.3389/fnins.2014.00437
Pubmed ID
Authors

David Dardou, Carine Chassain, Franck Durif

Abstract

The loss of dopamine neurons observed in Parkinson's disease (PD) elicits severe motor control deficits which are reduced by the use of dopamine agonists. However, recent works have indicated that D3-preferential agonists such as pramipexole can induce impulse control disorders (ICDs) such as food craving or compulsive eating. In the present study, we performed an intermittent daily feeding experiment to assess the effect of chronic treatment by pramipexole and VTA bilateral lesion on tolerance for sucrose solution. The impact of such chronic treatment on spontaneous locomotion and spatial memory was also examined. Changes in sucrose tolerance could indicate the potential development of a change in food compulsion or addiction related to the action of pramipexole. Neither the bilateral lesion of the VTA nor chronic treatment with pramipexole altered the spontaneous locomotion or spatial memory in rats. Rats without pramipexole treatment quickly developed a stable intake of sucrose solution in the 12 h access phase. On the contrary, when under daily pramipexole treatment, rats developed a stronger and ongoing escalation of their sucrose solution intakes. In addition, we noted that the change in sucrose consumption was sustained by an increase of the expression of the Dopamine D3 receptor in the core and the shell regions of the nucleus accumbens. The present results may suggest that long-term stimulation of the Dopamine D3 receptor in animals induces a strong increase in sucrose consumption, indicating an effect of this receptor on certain pathological aspects of food eating.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 38 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Canada 1 3%
Brazil 1 3%
Unknown 36 95%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 6 16%
Student > Bachelor 5 13%
Student > Master 5 13%
Student > Ph. D. Student 3 8%
Other 2 5%
Other 6 16%
Unknown 11 29%
Readers by discipline Count As %
Medicine and Dentistry 6 16%
Neuroscience 5 13%
Psychology 5 13%
Nursing and Health Professions 3 8%
Agricultural and Biological Sciences 1 3%
Other 3 8%
Unknown 15 39%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 January 2015.
All research outputs
#22,759,802
of 25,374,917 outputs
Outputs from Frontiers in Neuroscience
#10,137
of 11,541 outputs
Outputs of similar age
#306,137
of 358,892 outputs
Outputs of similar age from Frontiers in Neuroscience
#114
of 126 outputs
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