CBD Showed Mixed Results for PTSD Symptoms but Reduced Oxidative Stress in Rats

In a predator-odor PTSD model, CBD (10 mg/kg) did not significantly alter anxiety in the elevated plus maze, though a trend toward increased exploration was observed. In memory tests, CBD-treated stressed rats spent more time in the target quadrant of the Morris Water Maze, suggesting improved spatial memory. CBD reduced malondialdehyde (an oxidative stress marker) in brain tissue. Elevated cortisol in the stressed CBD group was interpreted as a potential anxiolytic mechanism.

Forty adult male rats divided into 4 groups (non-stressed and stressed, each with CBD or vehicle). PTSD induced by predator odor exposure on days 10 and 20 with daily cage partner changes. Behavioral tests: open field, elevated plus maze, novel object recognition, Morris Water Maze. Oxidative stress markers measured by liquid chromatography.

PTSD remains difficult to treat, and CBD has shown promise in some models. Understanding which PTSD symptoms CBD affects (memory vs. anxiety) can guide more targeted research.

The dissociation between CBD effects on anxiety (minimal) versus memory and oxidative stress (improved) suggests CBD may act through neuroprotective rather than directly anxiolytic mechanisms in PTSD.

Male rats only. Single CBD dose tested. Predator odor model captures some but not all PTSD features. Small sample size per group (n=10). The cortisol elevation interpretation is speculative. No dose-response analysis.