RT Journal Article T1 Bupropion, a possible antidepressant without negative effects on alcohol relapse A1 Ballesta, Antonio A1 Orio Ortiz, Laura A1 Arco, Rocío A1 Vargas, Antonio A1 Romero-Sanchiz, Pablo A1 Nogueira-Arjona, Raquel A1 Gómez De Heras, María Raquel A1 Antón, María A1 Ramírez-López, Mayte A1 Serrano, Antonia A1 Pavón, Francisco Javier A1 Rodríguez De Fonseca, Fernando Antonio A1 Suárez, Juan A1 Alén Fariñas, Francisco AB Rationale: the role that antidepressants play on alcohol consumption is not well understood. Previous studies have reported that treatment with a Selective Serotonin Reuptake Inhibitor (SSRIs) increases alcohol consumption in an animal model of relapse, however it is unknown whether this effect holds for other antidepressants such as the atypical dopamine/norepinephrine reuptake inhibitors (SNDRI).Objectives: the main goal of the present study was to compare the effects of two classes of antidepressants drugs, bupropion (SNDRI) and fluoxetine (SSRI), on alcohol consumption during relapse. Since glutamatergic and endocannabinoid signaling systems plays an important rolein alcohol abuse and relapse, we also evaluated the effects of both antidepressants on the expression of the main important genes and proteins of both systems in the prefrontal cortex,a critical brain region in alcohol relapse.Methods: rats were trained to self-administered alcohol. During abstinence, rats received a14d-treatment with vehicle, fluoxetine (10 mg/kg) or bupropion (20 mg/kg), and we evaluatedalcohol consumption during relapse for 3 weeks. Samples of prefrontal cortex were taken toevaluate the mRNA and protein expression of the different components of glutamatergic andendocannabinoid signaling systems.Results: fluoxetine treatment induced a long-lasting increase in alcohol consumption during relapse, an effect that was not observed in the case of bupropion treatment. The observed increases in alcohol consumption were accompanied by distinct alterations in the glutamate and endocannabinoid systems.Conclusions: our results suggest that SSRIs can negatively impact alcohol consumption in relapse while SNDRIs have no effects. The observed increase in alcohol consumption are accompanied by functional alterations in the glutamatergic and endocannabinoid systems. This finding could open new strategies for the treatment of depression in patients with alcohol use disorders. PB Elsevier SN 0924-977X YR 2019 FD 2019 LK https://hdl.handle.net/20.500.14352/101311 UL https://hdl.handle.net/20.500.14352/101311 LA eng NO Ballesta, Antonio, et al. «Bupropion, a Possible Antidepressant without Negative Effects on Alcohol Relapse». European Neuropsychopharmacology, vol. 29, n.o 6, junio de 2019, pp. 756-65. https://doi.org/10.1016/j.euroneuro.2019.03.012. NO Fulbright Visiting Scholar Program NO United States Department of State NO Instituto de Salud Carlos III NO Ministerio de Economía y Competitividad (España) NO European Commission NO Ministerio de Sanidad, Servicios Sociales e Igualdad (España) NO Junta de Andalucía NO Ministerio de Educación, Cultura y Deporte (España) DS Docta Complutense RD 11 abr 2025