Cited by 79Advanced Neuroimaging Techniques and ApplicationsSmoking Behavior and CessationFunctional Brain Connectivity Studies

Heavy smokers show abnormal microstructural integrity in the anterior corpus callosum: A diffusion tensor imaging study with tract-based spatial statistics

Lin, Fuchun, Wu, Guangyao, Zhu, Ling, Lei, Hao·2013·Drug and Alcohol Dependence

Abstract

Background Abnormal macrostructural brain abnormalities in both gray matter and white matter have been reported in cigarette smokers. However, less is known about white matter microstructure in heavy cigarette smokers. In this study, we used diffusion tensor imaging (DTI) to investigate the integrity of the white matter microstructure in heavy smokers.Methods Thirty-four heavy smokers and 34 non-smokers participated in this study. Whole brain analysis of fractional anisotropy (FA) was performed using tract-based spatial statistics (TBSS) to detect abnormal white matter regions between groups. Volume-of-interest (VOI) analysis was used to investigate changes in diffusivity indices in the regions showing FA abnormalities. Multiple regression analysis was applied to assess the relationships between diffusion indices and smoking-related variables in heavy smokers.Results Compared with non-smokers, heavy smokers had lower FA in the left anterior (i.e., the genu and rostral body) corpus callosum while exhibiting no areas of higher FA. In the affected region, FA reduction was accompanied by a significantly decreased axial diffusivity and increased radial diffusivity, which suggests that axonal damage and disrupted myelin integrity may be associated with the degraded white matter integrity in heavy smokers. Moreover, significant positive correlations were found between both radial diffusivity and mean diffusivity and the duration of regular smoking.Conclusions Our findings suggest that heavy smokers demonstrate abnormal integrity of the white matter microstructure in the anterior corpus callosum, which is related to the duration of regular smoking. In addition, our study may increase the understanding of the neurobiological basis of chronic cigarette smoking.

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Crossref · 10.1016/j.drugalcdep.2012.09.013

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Authors
Lin, F., Wu, G., Zhu, L., & Lei, H.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Wuhan University (CN)
Corresponding author
  • Wu, Guangyao
  • Lei, Hao
Venue
Drug and Alcohol Dependence
Publisher
Elsevier BV
Published
2013-04
Volume
129
Issue
1-2
Pages
82-87
ISSN
0376-8716 (ISSN-L)
OpenAlex
W2000010321
Cited by
79
References
55
Citations by year
2026: 2 · 2025: 2 · 2024: 5 · 2023: 3 · 2022: 7 · 2021: 6 · 2020: 4 · 2019: 9 · 2018: 8 · 2017: 7 · 2016: 8 · 2015: 5 · 2014: 9 · 2013: 4
FWCI
4.35
Type
journal article
Language
en
Open access
closed
Locations
  • Drug and Alcohol Dependence (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
heavy smoking, cigarette smoking, anterior corpus callosum, white matter microstructure, fractional anisotropy, radial diffusivity, axial diffusivity, mean diffusivity, smoking duration, axonal injury, myelin integrity
MeSH terms
Adult, Corpus Callosum, Data Interpretation, Statistical, Female, Humans, Image Processing, Computer-Assisted, Male, Middle Aged, Smoking, Linear Models, Anisotropy, Diffusion Tensor Imaging

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