Aged rats treated with EU-certified cannabis showed hippocampal tissue resembling young adults, with reduced neuroinflammation, while motor performance was unaffected.
Geriatric researchers, neurologists, and older adults interested in cannabis and brain health.
What the researchers found
Chronic intermittent cannabis treatment (6 weeks) produced hippocampal histology resembling young adults. Modulated astrocyte function, reduced neuroinflammation markers. Dose-dependent effects. Motor performance and anxiety unaffected.
Why it matters
As cannabis use among older adults rises, this suggests cannabis may have neuroprotective properties in aging, particularly in the hippocampus.
The numbers in context
Two doses: 6.25 and 25 mg/kg. 6-week treatment. Hippocampal tissue resembled young adults. Dose-dependent neuroinflammation effects.
How the study worked
Aged rats received EU-GMP certified Cannabis sativa at 6.25 and 25 mg/kg for 6 weeks. Histopathology, immunohistochemistry, and behavioral testing.
What this study cannot tell us
Exploratory. Small sample. Rat model. Complex phytochemistry. Short duration.
How to read the evidence
EU-GMP certified product with multiple endpoints, but exploratory design and small sample.
When this study was published
2025 preclinical study of cannabis in naturally aged rats.
The bigger picture
Cannabinoid supplementation might partially restore youthful brain function in aging.
Questions still open
- Would longer treatment sustain neuroprotective effects?
- Do older cannabis users show better cognitive preservation?
Common questions
Can cannabis protect the aging brain?
Is cannabis safe for older adults?
Read the original research
Exploring the impact of chronic intermittent EU-GMP certified Cannabis sativa L. therapy and its relevance in a rat model of aging.
Journal of cannabis research, 7(1), 53
Citation
Tudorancea, Ivona-Maria; Stanciu, Gabriela-Dumitrita; Solcan, Carmen; Ciorpac, Mitica; Szilagyi, Andrei; Ababei, Daniela-Carmen; Gogu, Raluca-Maria; Tamba, Bogdan-Ionel. (2025). Exploring the impact of chronic intermittent EU-GMP certified Cannabis sativa L. therapy and its relevance in a rat model of aging.. Journal of cannabis research, 7(1), 53. https://doi.org/10.1186/s42238-025-00313-8
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