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Impact of cannabis use on brain metabolism using 31P and 1H magnetic resonance spectroscopy.
Neuroradiology 65, 1631-1648 (2023)
Purpose: This prospective cross-sectional study investigated the influence of regular cannabis use on brain metabolism in young cannabis users by using combined proton and phosphorus magnetic resonance spectroscopy. Methods: The study was performed in 45 young cannabis users aged 18–30, who had been using cannabis on a regular basis over a period of at least 2 years and in 47 age-matched controls. We acquired 31P MRS data in different brain regions at 3T with a double-resonant 1H/31P head coil, anatomic images, and 1H MRS data with a standard 20-channel 1H head coil. Absolute concentration values of proton metabolites were obtained via calibration from tissue water as an internal reference, whereas a standard solution of 75 mmol/l KH2PO4 was used as an external reference for the calibration of phosphorus signals. Results: We found an overall but not statistically significant lower concentration level of several proton and phosphorus metabolites in cannabis users compared to non-users. In particular, energy-related phosphates such as adenosine triphosphate (ATP) and inorganic phosphate (Pi) were reduced in all regions under investigation. Phosphocreatine (PCr) showed lowered values mainly in the left basal ganglia and the left frontal white matter. Conclusion: The results suggest that the increased risk of functional brain disorders observed in long-term cannabis users could be caused by an impairment of the energy metabolism of the brain, but this needs to be verified in future studies.
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1.367
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
1h Mrs ; 31p Mrs ; Brain Metabolites ; Cannabis ; Marijuana; T-2 Relaxation-times; N-acetyl-aspartate; Marijuana Use; In-vivo; Intracellular Ph; Localized Proton; Skeletal-muscle; Basal Ganglia; Use Disorders; Acetylaspartate
Language
english
Publication Year
2023
HGF-reported in Year
2023
ISSN (print) / ISBN
0028-3940
e-ISSN
1432-1920
Journal
Neuroradiology
Quellenangaben
Volume: 65,
Issue: 11,
Pages: 1631-1648
Publisher
Springer
Publishing Place
One New York Plaza, Suite 4600, New York, Ny, United States
Institute(s)
Institute of Biological and Medical Imaging (IBMI)
POF-Topic(s)
30205 - Bioengineering and Digital Health
Research field(s)
Enabling and Novel Technologies
PSP Element(s)
G-505500-001
Grants
Our appreciation goes to the participants of the study, who have always been interested and cooperative and remained as calm as possible during the 1 h 30 m MRI examination time and even came to our department on holidays. We also like to thank the employ
WOS ID
001071101200001
Scopus ID
85171658087
PubMed ID
37735222
Erfassungsdatum
2023-10-18