RT Journal Article T1 Plasma concentrations of granulocyte colony-stimulating factor (G-CSF) in patients with substance use disorders and comorbid major depressive disorder. A1 Torres-Galvan, Sandra A1 Flores-Lopez, Maria A1 Romero-Sanchiz, Pablo A1 Requena-Ocaña, Nerea A1 Porras-Perales, Oscar A1 Nogueira-Arjona, Raquel A1 Mayoral, Fermin A1 Araos, Pedro A1 Serrano, Antonia A1 Muga, Roberto A1 Pavon, Francisco Javier A1 Garcia-Marchena, Nuria A1 Rodriguez-de-Fonseca, Fernando K1 Alcoholism K1 Cocaine-Related Disorders K1 Comorbidity K1 Depressive Disorder, Major AB Granulocyte colony-stimulating factor (G-CSF) has raised much interest because of its role in cocaine addiction in preclinical models. We explored the plasma concentrations of G-CSF in patients diagnosed with substance use disorder (SUD) and highly comorbid psychiatric disorders. In particular, we investigated the association between G-CSF concentrations and comorbid major depressive disorder (MDD) in patients with cocaine and alcohol use disorders (CUD and AUD, respectively). Additionally, patients with MDD but not SUD were included in the study. Three hundred and eleven participants were enrolled in this exploratory study: 136 control subjects, 125 patients with SUD (SUD group) from outpatient treatment programs for cocaine (N = 60, cocaine subgroup) and alcohol (N = 65, alcohol subgroup), and 50 patients with MDD but not SUD (MDD group) from primary-care settings. Participants were assessed based on DSM-IV-TR criteria, and a blood sample was collected to examine the plasma concentrations of G-CSF. G-CSF concentrations were negatively correlated with age in the entire sample (r = - 0.233, p < 0.001) but not in the patients with MDD. G‑CSF concentrations were lower in patients with SUD than in controls (p < 0.05), specifically in the cocaine subgroup (p < 0.05). Patients with SUD and comorbid MDD had lower G‑CSF concentrations than patients with SUD but not comorbid MDD or controls (p < 0.05). In contrast, patients with MDD but not SUD showed no differences compared with their controls. The negative association between G‑CSF concentrations and age in the sample was not observed in patients with MDD. G‑CSF concentrations were decreased in patients with SUD and comorbid MDD but not in patients with MDD. Therefore, G‑CSF may be useful to improve the stratification of patients with dual diagnosis seeking treatment. Further investigation is needed to explore the impact of sex and type of drug on the expression of G‑CSF. PB Nature Publishing Group YR 2021 FD 2021-07-01 LK http://hdl.handle.net/10668/18139 UL http://hdl.handle.net/10668/18139 LA en NO Galván ST, Flores-López M, Romero-Sanchiz P, Requena-Ocaña N, Porras-Perales O, Nogueira-Arjona R, et al. Plasma concentrations of granulocyte colony-stimulating factor (G-CSF) in patients with substance use disorders and comorbid major depressive disorder. Sci Rep. 2021 Jul 1;11(1):13629 DS RISalud RD Aug 6, 2025