Inflammatory and antioxidant pathway dysfunction in borderline personality disorder

• Published in: Psychiatry research 2020-02, Vol.284, p.112782-112782, Article 112782
• Main Authors: MacDowell, Karina S., Marsá, Marina Díaz, Buenache, Eva, Villatoro, Jose M López, Moreno, Beatriz, Leza, Juan C, Carrasco, José L
• Format: Article
• Language: English
• Subjects: Antioxidant; Borderline personality disorder; Inflammation; Stress
• ISSN: 0165-1781; 1872-7123
• DOI: 10.1016/j.psychres.2020.112782

•BPD patients present an increased activation of several components of inflammatory pathways.•BPD patients present an inhibition of the antioxidant pathways.•Inflammatory and antioxidant markers are partially correlated with levels of impulsivity. This study investigates the alteration of the inflammatory/oxidative pathway in patients with borderline personality disorder (BPD) and its relationship with clinical features of the disorder. 49 BPD patients and 33 healthy control subjects were studied. Plasma levels of TBARS, nitrites, and the antioxidant enzymes CAT, GPx and SOD were measured. In addition, peripheral blood mononuclear cells were obtained to investigate levels of intracellular components of the inflammatory/oxidative pathway including the IκBα, NFκB, iNOS, COX2, Keap1, NQO1, and HO1. Western Blot and ELISA were used to measure protein expression. Patients were assessed for different clinical dimensions of BPD with scales for depression, anxiety, impulsivity and functioning. A significant decrease of IκBα levels and a significant increase of inflammatory factors, including NFκB, COX2 and iNOS levels were found in patients. On the other hand, a significant decrease was observed for all antioxidant enzymes in patients with BPD, except for HO1. The inflammatory factor NFκB showed a significant positive correlation with impulsivity scores. Patients with BPD presented an increased activation of several components of the inflammatory pathways, as well as an inhibition of the antioxidant path. These alterations appear partially correlated with the impulsivity scores in these patients.