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• W4321490613 abstract "Objective: Chronic substance use and its effects on brain function and structure has long been of interest to clinicians and researchers. Prior cross-sectional comparisons of diffusion tensor imaging (DTI) metrics have suggested deleterious effects of chronic substance use (i.e., cocaine use) on white matter coherence. However, it is unclear how these effects may replicate across geographic regions when examined with similar technologies. In this study, we sought to conduct a replication of previous work in this area and determine whether there are any patterns of persistent differences in white matter microstructure between individuals with a history of cocaine use disorder (CocUD, according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition) and healthy controls. Method: A total of 46 participants (21 healthy controls, 25 chronic cocaine users) were recruited from the Richmond, Virginia metropolitan area. Information regarding past and current substance use was collected from all participants. Participants also completed structural and DTI scans. Results: Consistent with previous DTI studies, significant differences were found between fractional anisotropy (FA) and axial diffusivity (AD) CocUD and controls, with CocUD showing lower FA and AD in the right inferior and superior longitudinal fasciculus, the genu, body, and splenium of the corpus callosum, and the anterior, posterior, and superior corona radiata, among several other regions. These differences were not significant for other diffusivity metrics. Lifetime alcohol consumption was greater in the CocUD group, but lifetime alcohol consumption did not show a significant linear relationship with any of the DTI metrics in within-group regression analyses. Conclusions: These data align with previously reported declines in white matter coherence in chronic cocaine users. However, it is less clear whether comorbid alcohol consumption results in an additive deleterious effect on white matter microstructure." @default.
• W4321490613 created "2023-02-23" @default.
• W4321490613 creator A5014614921 @default.
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• W4321490613 date "2023-02-22" @default.
• W4321490613 modified "2023-09-27" @default.
• W4321490613 title "Chronic Cocaine Use and White Matter Coherence: A Diffusion Tensor Imaging Study" @default.
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• W4321490613 doi "https://doi.org/10.15288/jsad.21-00410" @default.
• W4321490613 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36971714" @default.
• W4321490613 hasPublicationYear "2023" @default.
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