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<field name="value">Keller, Benjamin</field>
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<field name="value">2021-08-24T15:16:54Z</field>
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<field name="value">Keller B, Mestre-Pinto JI, Alvaro-Bartolome M, Martinez-Sanvisens D, Farre M, García-Fuster MJ, et al. A Biomarker to Differentiate between Primary and Cocaine-Induced Major Depression in Cocaine Use Disorder: The Role of Platelet IRAS/Nischarin (I-1-Imidazoline Receptor). Front Psychiatry. 2017 Dec 01;8:258.</field>
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<field name="value">The association of cocaine use disorder (CUD) and comorbid major depressive disorder (MDD; CUD/MDD) is characterized by high prevalence and poor treatment outcomes. CUD/MDD may be primary (primary MDD) or cocaine-induced (CUD-induced MDD). Specific biomarkers are needed to improve diagnoses and therapeutic approaches in this dual pathology. Platelet biomarkers [5-HT2A receptor and imidazoline receptor antisera selected (IRAS)/nischarin] were assessed by Western blot in subjects with CUD and primary MDD (n = 16) or CUD-induced MDD (n = 9; antidepressant free, AD-; antidepressant treated, AD+) and controls (n = 10) at basal level and/or after acute tryptophan depletion (ATD). Basal platelet 5-HT2A receptor (monomer) was reduced in comorbid CUD/MDD subjects (all patients: 43%) compared to healthy controls, and this down-regulation was independent of AD medication (decreases in AD-: 47%, and in AD+: 40%). No basal differences were found for IRAS/nischarin contents in AD+ and AD-comorbid CUD/MDD subjects. The comparison of IRAS/nischarin in the different subject groups during/after ATD showed opposite modulations (i.e., increases and decreases) in response to low plasma tryptophan levels with significant differences discriminating between the subgroups of CUD with primary MDD and CUD-induced MDD. These specific alterations suggested that platelet IRAS/nischarin might be useful as a biomarker to discriminate between primary and CUD-induced MDD in this dual pathology.</field>
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<field name="value">The study was supported by grants SAF2011-29918 (JAG-S) and SAF2014-55903-R (MJG-F) from Ministerio de Economia y Competitividad (MINECO) and Fondo Europeo de Desarrollo Regional (FEDER) and by grants PS09/02121 and PI12/01838 (MT) from Instituto de Salud Carlos III (ISCIII) and FIS-FEDER, Madrid, Spain. The research was also funded by Redes Tematicas de Investigacion Cooperativa en Salud-Red de Trastornos Adictivos (RETICS-RTA, RD12/0028/0011, RD12/0028/0009, RD16/0017/0003, and RD16/0017/0010) (ISCIII and FEDER), Madrid, Spain. This work was also supported by grants 2012/011 and 2016/002 (MJG-F) from Delegacion del Gobierno para el Plan Nacional sobre Drogas, Ministerio de Sanidad, Servicios Sociales e Igualdad, Madrid, Spain. BK was supported by a predoctoral contract from RETICS-RTA. MJG-F is a Ramon y Cajal Researcher (MINECO-UIB). JG-S is a member of the Institut d'Estudis Catalans (Barcelona, Catalonia, Spain). We are grateful to Esther Menoyo, Marta Perez, Soraya Martin, and Clara Gibert for their valuable assistance throughout the clinical part of the study.</field>
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