ArticleDrug and alcohol dependence2022
Examination of gamma-aminobutyric acid and glutamate-glutamine levels in association with impulsive behavior in adolescent marijuana users.
Article in Drug and alcohol dependence, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.
- Neurometabolite Alterations Associated With Cannabis Use: A Proton Magnetic Resonance Spectroscopy Meta-Analysis.Human brain mapping · 2025Pooled it
- A multimethod examination of impulsivity and its association with gamma-aminobutyric acid (GABA), glutamate, and other neurometabolite levels in youth who do and do not use alcohol.Addictive behaviors · 2025Article
- Cannabinoid type 1 receptors in the mice prefrontal cortex regulate object location memory acquisition via GABAergic neurons.Behavioral and brain functions : BBF · 2025Article
- Effect of cannabinoids on glutamate levels in the human brain: a systematic review and meta-analysis.Journal of cannabis research · 2025Review
- Cannabis use in adolescence and young adulthood and its effects on brain structure and function: a scoping review.Frontiers in psychiatry · 2025Review
- Aberrant glutamatergic systems underlying impulsive behaviors: Insights from clinical and preclinical research.Progress in neuro-psychopharmacology & biological psychiatry · 2024Review
- Consequences of adolescent drug use.Translational psychiatry · 2023Review
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundAdolescent marijuana (MJ) use has been associated with alterations in brain structure and function as well as behavior. Examination of neurochemical correlates such as GABA (gamma-aminobutyric acid) and Glx (glutamate + glutamine) in MJ users remains limited. Impulsivity, identified as a risk factor and consequence of MJ use, has been associated with GABA and Glx levels in healthy and clinical populations. However, this relationship has not been investigated in MJ users. In this study, we examined levels of GABA and Glx in the anterior cingulate cortex (ACC) and its relationship with impulsive behavior in MJ-using adolescents and healthy controls.
methodsHealthy control subjects (HC; N = 21) and MJ-using adolescents (N = 18) completed a metabolite-edited
resultsAdolescent MJ users had significantly lower tissue-corrected GABA (with macromolecules; GABA+) levels (p = 0.029) compared to HC's. No significant between-group differences were observed in ACC Glx levels. Assessment of impulsive behavior demonstrated no significant between-group differences in motor, non-planning, attention, and total impulsivity scores. Additionally, impulsivity measures and tissue-corrected GABA+ or Glx levels were not significantly correlated in either group.
conclusionLower GABA levels in MJ users may indicate alterations in excitatory-inhibitory mechanisms critical for neurodevelopment. Although no significant relationships were observed between impulsive measures and GABA or Glx levels in both groups, further investigations are needed examining the relationship between neurochemical correlates, behavior, and adolescent MJ use.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.