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Acute caffeine reverses the disruptive effects of chronic fluoxetine on the sexual behavior of female and male rats.

Author(s): González Cautela BV; Quintana GR; Akerman J; Pfaus JG;

RATIONALE: Sexual side effects of chronic treatment with selective serotonin reuptake inhibitors (SSRIs) in humans include anorgasmia and loss of sexual desire and/or arousal which interferes with treatment compliance. There are few options at present to re...

Article GUID: 33242109
Correction to: Differential disruption of conditioned ejaculatory preference in the male rat based on different sensory modalities by micro-infusions of naloxone to the medial preoptic area or ventral tegmental area.

Author(s): Quintana GR, Birrel M, Marceau S, Kalantari N, Bowden J, Bachoura Y, Borduas E, Lemay V, Payne JW, Cionnaith CM, Pfaus JG

Psychopharmacology (Berl). 2020 Jan 09;: Authors: Quintana GR, Birrel M, Marceau S, Kalantari N, Bowden J, Bachoura Y, Borduas E, Lemay V, Payne JW, Cionnaith CM, Pfaus JG

Article GUID: 31919562
A role for leptin and ghrelin in the augmentation of heroin seeking induced by chronic food restriction.

Author(s): D'Cunha TM, Chisholm A, Hryhorczuk C, Fulton S, Shalev U

RATIONAL: Caloric restriction increases the risk of relapse in abstinent drug users. Hormones involved in the regulation of energy balance and food intake, such as leptin and ghrelin, are implicated in drug-related behaviors. OBJECTIVES: We investigated the...

Article GUID: 31811350
Differential disruption of conditioned ejaculatory preference in the male rat based on different sensory modalities by micro-infusions of naloxone to the medial preoptic area or ventral tegmental area.

Author(s): Quintana GR, Birrel M, Marceau S, Kalantari N, Bowden J, Bachoura Y, Borduas E, Lemay V, Payne JW, Cionnaith CM, Pfaus JG

Psychopharmacology (Berl). 2019 Jul 29;: Authors: Quintana GR, Birrel M, Marceau S, Kalantari N, Bowden J, Bachoura Y, Borduas E, Lemay V, Payne JW, Cionnaith CM, Pfaus JG

Article GUID: 31359118
Acute intranasal oxytocin improves positive self-perceptions of personality.

Author(s): Cardoso C, Ellenbogen MA, Linnen AM

Psychopharmacology (Berl). 2012 Apr;220(4):741-9 Authors: Cardoso C, Ellenbogen MA, Linnen AM

Article GUID: 22012170
Vendor differences in alcohol consumption and the contribution of dopamine receptors to Pavlovian-conditioned alcohol-seeking in Long-Evans rats.

Author(s): Sparks LM, Sciascia JM, Ayorech Z, Chaudhri N

Psychopharmacology (Berl). 2014 Feb;231(4):753-64 Authors: Sparks LM, Sciascia JM, Ayorech Z, Chaudhri N

Article GUID: 24096535
Food restriction-induced augmentation of heroin seeking in female rats: manipulations of ovarian hormones.

Author(s): Sedki F, Gardner Gregory J, Luminare A, D'Cunha TM, Shalev U

Psychopharmacology (Berl). 2015 Oct;232(20):3773-82 Authors: Sedki F, Gardner Gregory J, Luminare A, D'Cunha TM, Shalev U

Article GUID: 26246318
Nicotine-induced enhancement of Pavlovian alcohol-seeking behavior in rats.

Author(s): Maddux JN, Chaudhri N

Psychopharmacology (Berl). 2017 Feb;234(4):727-738 Authors: Maddux JN, Chaudhri N

Article GUID: 28011981
Title:A role for leptin and ghrelin in the augmentation of heroin seeking induced by chronic food restriction.
Authors:D'Cunha TM,  Chisholm A,  Hryhorczuk C,  Fulton S,  Shalev U
Link:https://www.ncbi.nlm.nih.gov/pubmed/31811350
DOI:10.1007/s00213-019-05415-9
Category:Psychopharmacology (Berl)
PMID:31811350
Dept Affiliation: PSYCHOLOGY
1 Department of Psychology, Concordia University, Montreal, Quebec, Canada.
2 Center for Studies in Behavioral Neurobiology (CSBN), Montreal, Canada.
3 Centre de Recherche du CHUM, Montreal Diabetes Research Centre, Université de Montréal, Quebec, Canada.
4 Department of Psychology, Concordia University, Montreal, Quebec, Canada. uri.shalev@concordia.ca.
5 Center for Studies in Behavioral Neurobiology (CSBN), Montreal, Canada. uri.shalev@concordia.ca.

Description:

RATIONAL: Caloric restriction increases the risk of relapse in abstinent drug users. Hormones involved in the regulation of energy balance and food intake, such as leptin and ghrelin, are implicated in drug-related behaviors.

OBJECTIVES: We investigated the role of leptin and ghrelin in the augmentation of heroin seeking induced by chronic food restriction.

METHODS: Rats self-administered heroin (0.1 mg/kg/infusion) for 10 days followed by 14 days of drug withdrawal. During withdrawal, rats were food restricted to 90% of their original body weight or were given free access to food. In experiment 1, we measured the plasma concentrations of leptin and ghrelin following heroin self-administration and withdrawal. In experiment 2, leptin was administered centrally (2.0 or 4.0 µg; i.c.v.) prior to a heroin-seeking test under extinction conditions. High density of both leptin and ghrelin receptors was previously identified in the ventral tegmental area (VTA), suggesting a direct effect on reward and motivation. Hence, we administered leptin (experiment 3; 0.125 or 0.250 µg/side), or ghrelin receptor antagonist JMV 2959 (experiment 4; 2.0 or 10.0 µg/side) directly into the VTA prior to the heroin-seeking test.

RESULTS: Chronic food restriction significantly decreased plasma levels of leptin and elevated plasma levels of ghrelin. Central administration of leptin had no statistically significant effect on heroin seeking. Intra-VTA administration of either leptin or JMV 2959 dose-dependently and selectively decreased heroin seeking in the food-restricted rats.

CONCLUSIONS: Leptin and ghrelin transmission in the VTA can modulate the augmentation of heroin seeking induced by chronic food restriction.

PMID: 31811350 [PubMed - indexed for MEDLINE]