Related Experiment Video
Updated: Jul 14, 2026
Development of an Uncomplicated Mild Traumatic Brain Injury Model Modified by Weight-Drop Method and Evidenced by Magnetic Resonance Imaging
Published on: April 11, 2025
Neuroprotective effects of resveratrol against traumatic brain injury in immature rats
Ulker Sönmez1, Ataç Sönmez, Güven Erbil
1Department of Histology and Embryology, School of Medicine, Dokuz Eylul University Inciralti, TR-35340 Izmir, Turkey. atac.sonmez@deu.edu.tr
Insights
Resveratrol treatment significantly reduced brain damage and improved memory in young rats after traumatic brain injury (TBI). This finding highlights resveratrol's neuroprotective potential for TBI recovery in developing brains.
Area of Science:
- Neuroscience
- Pharmacology
- Pediatric Traumatology
Background:
- Traumatic brain injury (TBI) in childhood, from accidents or abuse, is a leading cause of mortality and long-term disability.
- Current TBI management is primarily supportive due to a lack of specific pharmacological treatments for secondary injury progression.
Purpose of the Study:
- To investigate the neuroprotective effects of resveratrol on hippocampal damage and behavioral deficits in young rats following contusion injury.
- To evaluate resveratrol's potential to mitigate secondary injury mechanisms in pediatric TBI models.
Main Methods:
- A single intraperitoneal dose of resveratrol (100 mg/kg) was administered to 7-day-old rat pups immediately after inducing a contusion injury.
- Hippocampal neuron loss was assessed using cresyl violet staining.
- Behavioral alterations, including anxiety and memory, were evaluated using open field and novel object recognition tests two weeks post-trauma.
Main Results:
- Resveratrol treatment significantly reduced neuronal loss in both ipsilateral and contralateral hippocampal regions following TBI.
- Animals treated with resveratrol exhibited decreased anxiety levels.
- Cognitive function, specifically cortex/hippocampus-dependent memory, was enhanced in resveratrol-treated rats compared to controls.
Conclusions:
- Acute resveratrol administration demonstrates significant neuroprotective effects against trauma-induced hippocampal neuron loss.
- Resveratrol treatment ameliorates cognitive impairments associated with blunt head trauma in a developing rat model.
- These findings suggest resveratrol as a potential therapeutic agent for mitigating secondary injury and cognitive deficits in pediatric TBI.
Abstract:
Childhood trauma resulting in traumatic brain injury (TBI) due to accidents and abuse is the major cause of death and dysfunction in the young. Since there are no approved specific pharmacological agents that block the progression of the secondary injury, the current management of TBI is mainly supportive. We aimed to determine the effect of resveratrol on hippocampal damage and behavioral deficits in 7-day-old rat pups subjected to contusion injury. Resveratrol was injected intraperitoneally at the doses of 100 mg/kg of body weight immediately after induction of traumatic injury. Hippocampal damage was examined by cresyl violet staining and behavioral alterations were evaluated using open field and novel object recognition tests 2 weeks after trauma. Histopathological evaluation showed that treatment with a single dose of 100 mg/kg resveratrol (i.p.) after the trauma significantly ameliorated the trauma induced hippocampal neuron loss at ipsilateral and contralateral hippocampal brain regions of rats. Additionally, treatment with resveratrol decreased anxiety and increased cortex/hippocampus dependent memory of animals subjected to blunt head trauma. These results show that acute treatment of resveratrol has a neuroprotective role against trauma induced hippocampal neuron loss and associated cognitive impairment in rats.
