FABP5 inhibition prevented anxiety and depression in chronically stressed rats while boosting hippocampal neurogenesis.
Psychiatry researchers, pharmaceutical developers, and ECS therapeutics scientists.
What the researchers found
FABP5 inhibition prevented stress-induced anxiety and depression. Altered IGF-1, CB2, GPR55 transcription and Erk1/2, Akt, p70S6K signaling. Preserved hippocampal neurogenesis.
Why it matters
Boosting endogenous endocannabinoids by preventing breakdown could treat mood disorders without THC's psychoactive effects.
The numbers in context
Anxiety and depression prevented. Multiple signaling pathways altered. Neurogenesis preserved.
How the study worked
Chronic stress rodent model. Systemic FABP5 inhibitor. Behavioral tests, molecular analysis, neurogenesis assessment.
What this study cannot tell us
Animal model only. FABP5 has roles beyond ECS. No comparison with antidepressants.
How to read the evidence
Comprehensive preclinical study but animal-only.
When this study was published
2025 preclinical study.
The bigger picture
FABP5 inhibition enhances what the brain naturally produces rather than overriding it — a softer approach.
Questions still open
- Could FABP5 inhibitors become a new antidepressant class?
- Would this help SSRI non-responders?
Common questions
Can boosting natural cannabinoids treat anxiety?
What is FABP5?
Read the original research
Inhibition of fatty acid binding protein 5 prevents stress-induced anxiogenic and depressive-like symptoms through modulation of hippocampal neurogenesis, cannabinoid and neurotrophic signaling in the limbic circuitry.
Neurobiology of disease, 217, 107201
Citation
Uzuneser, Taygun C; Jones, Matthew J; Sarikahya, Mohammed H; Gummerson, Dana; Whitehead, Shawn N; Hardy, Daniel B; Rushlow, Walter J; Laviolette, Steven R. (2025). Inhibition of fatty acid binding protein 5 prevents stress-induced anxiogenic and depressive-like symptoms through modulation of hippocampal neurogenesis, cannabinoid and neurotrophic signaling in the limbic circuitry.. Neurobiology of disease, 217, 107201. https://doi.org/10.1016/j.nbd.2025.107201
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