ArticleAntioxidants (Basel, Switzerland)2026
Stigmasterol Is Associated with Alterations in nNOS-PSD95/CAPON Signaling and Synaptic Plasticity in a PTSD Model.
Article in Antioxidants (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The efficacy of stigmasterol (STG) has not been previously evaluated in post-traumatic stress disorder (PTSD) models. Mice exposed to single prolonged stress with foot shock (SPS + FS) received oral STG (25 or 50 mg/kg) for 14 days. Serum corticosterone and serotonin levels were measured, anxiety and cognition were assessed, synaptic plasticity-related proteins and genes were quantified, and neuronal nitric oxide synthase (nNOS), nitric oxide (NO) accumulation, nNOS-postsynaptic density protein 95 (PSD95), and nNOS-carboxy-terminal PDZ ligand of nNOS (CAPON) interactions were evaluated. STG significantly reduced serum corticosterone levels and increased serotonin levels altered by SPS+FS exposure. Behavioral analyses revealed attenuation of anxiety-like behavior and cognitive deficits. STG increased hippocampal synaptic plasticity-related proteins and genes and increased the number and maturation of doublecortin
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