Connectome dysfunction in patients at clinical high risk for psychosis and modulation by oxytocin

Autor: Cathy Davies, Daniel Martins, Ottavia Dipasquale, Robert A. McCutcheon, Andrea De Micheli, Valentina Ramella-Cravaro, Umberto Provenzani, Grazia Rutigliano, Marco Cappucciati, Dominic Oliver, Steve Williams, Fernando Zelaya, Paul Allen, Silvia Murguia, David Taylor, Sukhi Shergill, Paul Morrison, Philip McGuire, Yannis Paloyelis, Paolo Fusar-Poli
Rok vydání: 2023
Popis: Abnormalities in functional brain networks (functional connectome) are increasingly implicated in people at Clinical High Risk for Psychosis (CHR-P). Intranasal oxytocin, a potential novel treatment for the CHR-P state, modulates network topology in healthy individuals. However, its connectomic effects in people at CHR-P remain unknown. Forty-seven men (30 CHR-P and 17 healthy controls) received acute challenges of both intranasal oxytocin 40 IU and placebo in two parallel randomised, double-blind, placebo-controlled cross-over studies. Multi-echo resting-state fMRI data was acquired at approximately 1h post-dosing. Using a graph theoretical approach, the effects of group (CHR-P vs healthy control), treatment (oxytocin vs placebo) and respective interactions were tested on graph metrics describing the topology of the functional connectome. Group effects were observed in 12 regions (all pFDRFDRFDR
Databáze: OpenAIRE