20.500.12556/RUL-190743 Protective effects of cannabidiol against acute stress behavioral responses and corticosterone concentrations in female Wistar rats Background: Cannabidiol (CBD) has been widely investigated for its potential anxiolytic and stress-modulating effects. This study evaluated whether CBD reduces the stress response induced by acute restraint stress in rats. Methods: Thirty-six female Wistar rats were randomly assigned to six groups. Four experimental groups received CBD at different doses (2, 10, 20, and 100 mg/kg), while two control groups received the placebo (CBD vehicle medium-chain triglycerides). Sixty minutes after administration, the animals treated with CBD and one placebo-treated group (stressed control group) were subjected to 60 min of restraint stress. The other placebo-treated group (nonstressed control group) was not subjected to restraint stress. Subsequently, all animals were tested in the open field (OF) for 30 min. Immediately after the OF test, blood samples were collected for corticosterone analysis. Plasma corticosterone concentrations were determined using a commercial ELISA kit. Results: In the OF, distance traveled differed significantly between groups, although no significant differences were observed among the different CBD doses. Compared with stressed control rats, CBD-treated rats spent more time in the center of the OF arena, suggesting reduced anxiety-like behavior. Plasma corticosterone concentrations did not differ significantly between groups. At 90 min after the onset of stress (30 min after the end of restraint stress), corticosterone concentrations did not differ between CBD-treated and untreated rats. Conclusion: CBD showed no effect on locomotor activity but increased center time, suggesting anxiolytic-like effects. Further studies are needed to clarify the underlying mechanisms. cannabidiol corticosterone Wistar rats open field test kanabidiol korticosteron podgane Wistar test na odprtem polju true false true Angleški jezik Slovenski jezik Članek v reviji 2026-11-03 04:08:03 2026-11-04 08:51:38 2026-11-06 04:29:17 0000-00-00 00:00:00 2026 0 0 9 str. Vol. 17, art. 1931847 2026 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 636.09:615.214:616.89 1663-9812 10.3389/fphar.2026.1931847 294464515 Protective-Snoj.pdf Protective-Snoj.pdf 1 4FE801C7232F3DD5C1397B0341762156 b11cfa29446a65b7ecbd6ff572660f47e2fec3145174d04e9bfe9dc75cd58135 72a180e0-d824-11f1-aea2-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=252421 https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2026.1931847/full 1 bec92e54-d733-11f1-aea2-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=252349 Veterinarska fakulteta 0 0 0