Abstract
Rationale
There have been only a few structural brain-imaging studies, with varied findings, of opiate-dependent subjects. Voxel-based morphometry (VBM) is suitable for studying whole brain-wise structural brain changes in opiate-dependent subjects.
Objectives
The objective of the current study is to explore gray matter density in opiate-dependent subjects.
Methods
Gray matter density in 63 opiate-dependent subjects and 46 age- and sex-matched healthy comparison subjects was compared using VBM.
Results
Relative to healthy comparison subjects, opiate-dependent subjects exhibited decreased gray matter density in bilateral prefrontal cortex [Brodmann areas (BA) 8, 9, 10, 11, and 47], bilateral insula (BA 13), bilateral superior temporal cortex (BA 21 and 38), left fusiform cortex (BA 37), and right uncus (BA 28).
Conclusions
This study reports that opiate-dependent subjects have gray matter density decreases in prefrontal and temporal cortex, which may be associated with behavioral and neuropsychological dysfunction in opiate-dependent subjects.
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Acknowledgements
This study was supported by grants NIDA DA11231 (M.P.H.), DA017324 (M.J.K.), DA09448, DA15116 (P.F.R.), and NARSAD Young Investigator and the Harvard-MIT Clinical Investigator Training Program (I.K.L.).
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Lyoo, I.K., Pollack, M.H., Silveri, M.M. et al. Prefrontal and temporal gray matter density decreases in opiate dependence. Psychopharmacology 184, 139–144 (2006). https://doi.org/10.1007/s00213-005-0198-x
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DOI: https://doi.org/10.1007/s00213-005-0198-x