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Sex Differences in the Reinstatement of Methamphetamine Seeking after Forced Abstinence in Sprague-Dawley Rats

Overview of attention for article published in Frontiers in Psychiatry, July 2015
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Title
Sex Differences in the Reinstatement of Methamphetamine Seeking after Forced Abstinence in Sprague-Dawley Rats
Published in
Frontiers in Psychiatry, July 2015
DOI 10.3389/fpsyt.2015.00091
Pubmed ID
Authors

Jana Ruda-Kucerova, Petra Amchova, Zuzana Babinska, Ladislav Dusek, Vincenzo Micale, Alexandra Sulcova

Abstract

Preventing relapse to drug abuse is one of the struggles faced by clinicians in order to treat patients with substance use disorders (DSM-5). There is a large body of clinical evidence suggesting differential characteristics of the disorder in men and women, which is in line with preclinical findings as well. The aim of this study was to assess differences in relapse-like behavior in methamphetamine (METH) seeking after a period of forced abstinence, which simulates the real clinical situation very well. Findings from such study might add new insights in gender differences in relapse mechanisms to previous studies, which employ a classical drug or cue-induced reinstatement procedure following the extinction training. Adult male and female Sprague-Dawley rats were used in IV self-administration procedure conducted in operant boxes using nose-poke operandi (Coulborn Instruments, USA). Active nose-poke resulted in activation of the infusion pump to deliver one intravenous infusion of METH (0.08 mg/kg). After baseline drug intake was established (maintenance phase), a period of forced abstinence was initiated and rats were kept singly in their home cages for 14 days. Finally, one reinstatement session in operant boxes was conducted. Females were found to self-administer significantly lower dose of METH. The relapse rate was assessed as a number of active nose-pokes during the reinstatement session, expressed as a percentage of active nose-poking during the maintenance phase. Females displayed approximately 300% of active nose-pokes compared to 50% in males. This indicates higher vulnerability to relapse of METH seeking behavior in female rats. This effect was detected in all females, independently of current phase of their estrous cycle. Therefore, this paradigm using operant drug self-administration and reinstatement of drug-seeking after forced abstinence model can be used for preclinical screening for potential new anti-relapse medications specific for women.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 45 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 45 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 22%
Researcher 7 16%
Student > Master 5 11%
Professor > Associate Professor 4 9%
Student > Bachelor 4 9%
Other 8 18%
Unknown 7 16%
Readers by discipline Count As %
Neuroscience 9 20%
Psychology 8 18%
Agricultural and Biological Sciences 4 9%
Unspecified 3 7%
Biochemistry, Genetics and Molecular Biology 2 4%
Other 6 13%
Unknown 13 29%
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 July 2015.
All research outputs
#18,418,694
of 22,816,807 outputs
Outputs from Frontiers in Psychiatry
#6,829
of 9,933 outputs
Outputs of similar age
#188,596
of 262,341 outputs
Outputs of similar age from Frontiers in Psychiatry
#29
of 39 outputs
Altmetric has tracked 22,816,807 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
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