Trail Making Test performance in early abstinence from methamphetamine: human evidence for a drug-associated Parkinsonian-like phenotype - Summary - MDSpire
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Trail Making Test performance in early abstinence from methamphetamine: human evidence for a drug-associated Parkinsonian-like phenotype
To examine whether recently abstinent individuals with methamphetamine use disorder (MUD) exhibit cognitive inflexibility resembling Parkinsonian-like symptoms and how these deficits vary by sex or patterns of use.
Key Findings:
Both sexes in the methamphetamine group exhibited significant TMT deficits compared to controls, aligning with findings in PD populations.
Age of first use, duration, and amount of methamphetamine used did not significantly affect cognitive performance.
Intravenous use was associated with a higher number of TMT errors in females, indicating a potential sex difference in cognitive impact.
Interpretation:
These findings suggest that methamphetamine use may induce cognitive deficits resembling an early Parkinsonian-like phenotype, particularly highlighting the increased risk for women who inject methamphetamine.
Limitations:
The small sample size may limit the generalizability of the findings.
The cross-sectional design does not allow for causal inferences regarding the relationship between methamphetamine use and cognitive deficits.
Conclusion:
Cognitive inflexibility in individuals with MUD may impede treatment engagement, underscoring the necessity for comprehensive interventions that specifically address these cognitive deficits.
by Alexandru Mihai Dumitrescu, M. Frances Vest, Annette E. Fleckenstein, James C. Patterson, Christina Ledbetter, Nicholas E. Goeders, Jennifer M. Loftis, Elliot Thompson, Katelyn Lofton, Kevin S. Murnane
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