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Article Abstract
Background: Brain-derived neurotrophic factor (BDNF) is known to prevent methamphetamine (METH)-induced neurotoxicity and plays a role in various stages of METH addiction. However, there is a lack of research with longitudinal design on changes in plasma BDNF levels in active METH-dependent individuals.
Aims: The aim of the study was to investigate changes in BDNF levels during METH self-administration in monkeys.
Methods: This study measured plasma BDNF levels in three male rhesus monkeys with continuous METH exposure and four male control rhesus monkeys without METH exposure. Changes in plasma BDNF levels were then assessed longitudinally during 40 sessions of METH self-administration in the three monkeys.
Results: Repeated METH exposure decreased plasma BDNF levels. Additionally, plasma BDNF decreased with long-term rather than short-term accumulation of METH during METH self-administration.
Conclusions: These findings may indicate that the changes in peripheral BDNF may reflect the quantity of accumulative METH intake during a frequent drug use period.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10618972 | PMC |
| http://dx.doi.org/10.1136/gpsych-2023-101127 | DOI Listing |
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