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Bittencourt AML, Bampi VF, Sommer RC, Schaker V, Juruena MFP, Soder RB, Franco AR, Sanvicente-Vieira B, Grassi-Oliveira R, Ferreira PEMS. Cortical thickness and subcortical volume abnormalities in male crack-cocaine users. Psychiatry Res Neuroimaging 2021; 310:111232. [PMID: 33621927 DOI: 10.1016/j.pscychresns.2020.111232] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 02/05/2023]
Abstract
Crack-cocaine offers a higher risk of abuse than intranasal and intravenous use of cocaine. Yet, current treatments remain disappointing and our understanding of the mechanism of crack-cocaine neurotoxicity is still incomplete. Magnetic resonance images studies on brain changes of crack-cocaine addicts show divergent data. The present study investigated gray matter (GM) abnormalities in crack-cocaine dependents (n = 18) compared to healthy controls (n = 17). MRI data was analysed using FreeSurfer and voxel-based morphometry (VBM). FreeSurfer analysis showed that CD had decreased cortical thickness (CT) in the left inferior temporal cortex (lTC), left orbitofrontal cortex (lOFC) and left rostro frontal cortex (lRFC), enlargement in left inferior lateral ventricle, and smaller GM volume in right hippocampus and right ventral diencephalon. VBM analysis showed that CD had significantly decreased GM volume in left Putamen and left nucleus accumbens. Furthermore, we found a negative correlation between duration of crack-cocaine use and lTC CT. These results provide compelling evidence for GM abnormalities in CD and also suggest that duration of crack-cocaine use may be associated with CT alterations.
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Affiliation(s)
- Augusto Martins Lucas Bittencourt
- Developmental Cognitive Neuroscience Lab (DCNL), Graduate Program in Medicine and Health Sciences - Neuroscience, Pontifical Catholic University of Rio Grande do Sul (PUCRS), 90619900, Porto Alegre, Brazil.
| | - Vinicius Faccin Bampi
- SW - Adult Community Mental Health Service, Hertfordshire Partnership University NHS Foundation Trust, St, AL3 5TQ St Albans, United Kingdom
| | - Rafael Canani Sommer
- School of Medicine, Pontifical Catholic University of Rio Grande do Sul, 90619900, Porto Alegre, Brasil
| | - Vanessa Schaker
- Federal University of Rio Grande do Sul, 90040-060, Porto Alegre, Brazil
| | | | - Ricardo Bernardi Soder
- Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul, 90619900, Porto Alegre, Brasil
| | - Alexandre Rosa Franco
- Center for Biomedical Imaging and Neuromodulation, Nathan Kline Institute for Psychiatric Research, Orangeberg, NY, 10962, USA; Center for the Developing Brain, Child Mind Institute, New York, NY, 10022, USA; Department of Psychiatry, NYU Grossman School of Medicine, New York, NY, 10016, USA
| | - Breno Sanvicente-Vieira
- Lab of Individual Differences and Psychopathology (LaDIP), Psychology Department - Pontifical Catholic University of Rio de Janeiro (PUC-Rio), 22453900, Rio de Janeiro, Brazil
| | - Rodrigo Grassi-Oliveira
- Developmental Cognitive Neuroscience Lab (DCNL), Graduate Program in Medicine and Health Sciences - Neuroscience, Pontifical Catholic University of Rio Grande do Sul (PUCRS), 90619900, Porto Alegre, Brazil; Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul, 90619900, Porto Alegre, Brasil
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