White-matter abnormalities in adolescents with long-term inhalant and cannabis use: a diffusion magnetic resonance imaging study

Yuecel M., Zalesky A., Takagi M. J., BORA İ. E., Fornito A., Ditchfield M., ...More

JOURNAL OF PSYCHIATRY & NEUROSCIENCE, vol.35, no.6, pp.409-412, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 6
  • Publication Date: 2010
  • Doi Number: 10.1503/jpn.090177
  • Journal Name: JOURNAL OF PSYCHIATRY & NEUROSCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
  • Page Numbers: pp.409-412
  • Dokuz Eylül University Affiliated: Yes

Abstract

Background: There is growing evidence that inhalants are neurotoxic to white matter, yet limited work has been conducted to investigate the neurobiologic effects of long-term exposure among adolescent users, despite inhalant use being most prominent during this developmental period. Methods: We used diffusion tensor imaging to examine white-matter integrity in 11 adolescents who used inhalants, 11 matched cannabis users and 8 drug-naive controls. Results: Although both groups of drug users had white-matter abnormalities (i.e., lower fractional anisotropy), abnormalities were more pronounced in the inhalant group, particularly among early-onset users. Limitations: The findings of this study should be considered in light of its small sample size, cross-sectional design and the complex psychosocial background of long-term inhalant users. Conclusion: White-matter abnormalities may underpin long-term behavioural and mental health problems seen in individuals with long-term inhalant use.