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Sökning: WFRF:(Cifani C)

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  • Di Bonaventura, MVM, et al. (författare)
  • Regulation of adenosine A2A receptor gene expression in a model of binge eating in the amygdaloid complex of female rats
  • 2019
  • Ingår i: Journal of psychopharmacology (Oxford, England). - : SAGE Publications. - 1461-7285 .- 0269-8811. ; 33:12, s. 1550-1561
  • Tidskriftsartikel (refereegranskat)abstract
    • Pharmacological treatment approaches for eating disorders, such as binge eating disorder and bulimia nervosa, are currently limited.Methods and aims:Using a well-characterized animal model of binge eating, we investigated the epigenetic regulation of the A2AAdenosine Receptor (A2AAR) and dopaminergic D2 receptor (D2R) genes.Results:Gene expression analysis revealed a selective increase of both receptor mRNAs in the amygdaloid complex of stressed and restricted rats, which exhibited binge-like eating, when compared to non-stressed and non-restricted rats. Consistently, pyrosequencing analysis revealed a significant reduction of the percentage of DNA methylation but only at the A2AAR promoter region in rats showing binge-like behaviour compared to the control animals. Focusing thus on A2AAR agonist (VT 7) administration (which inhibited the episode of binge systemically at 0.1 mg/kg or intra-central amygdala (CeA) injection at 900 ng/side) induced a significant increase of A2AAR mRNA levels in restricted and stressed rats when compared to the control group. In addition, we observed a significant decrease in A2AAR mRNA levels in rats treated with the A2AAR antagonist (ANR 94) at 1 mg/kg. Consistent changes in the DNA methylation status of the A2AAR promoter were found in restricted and stressed rats after administration of VT 7 or ANR 94.Conclusion:We confirm the role of A2AAR in binge eating behaviours, and we underline the importance of epigenetic regulation of the A2AAR gene, possibly due to a compensatory mechanism to counteract the effect of binge eating. We suggest that A2AAR activation, inducing receptor gene up-regulation, could be relevant to reduction of food consumption.
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  • D'Addario, C, et al. (författare)
  • Endocannabinoid signaling and food addiction
  • 2014
  • Ingår i: Neuroscience and biobehavioral reviews. - : Elsevier BV. - 1873-7528 .- 0149-7634. ; 47, s. 203-224
  • Tidskriftsartikel (refereegranskat)
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