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Traumatic brain injury (TBI) is a major health concern affecting the general public as well as military personnel. However, there is no FDA-approved therapy for the treatment of TBIs. In this work, we investigated the neurotherapeutic effects of the well-known natural Iranian medicine  Satureja Khuzistanica  Jamzad (SKJ) essential oil (SKEO) on the outcomes of diffused experimental TBI, with particular attention paid to its anti-inflammatory and anti-apoptotic effects. Male Wistar rats were treated with doses of 50, 100 and 200 (mg/kg, i.p) SKEO after induction of diffused TBIs. The results showed that injecting SKEO (200 mg/kg) 30 minutes after TBI significantly reduced brain oedema and damage to the blood-brain barrier (BBB) and limited the post-TBI increase in intracranial pressure. The veterinary coma scale (VCS) scores significantly improved in the treatment group. Also, inflammatory marker assays showed reduced levels of TNF-α, IL-1β, and IL-6 and increased IL-10 in the treated groups. Moreover, the immunohistochemical results indicated that SKEO not only reduced neuronal death and BBB permeability but also affected astrocytic activation. Overall, our data indicate potential clinical neurological applications for SKEO.

The anti-inflammatory properties of Satureja khuzistanica Jamzad essential oil attenuate the effects of traumatic brain injuries in rats