Objective: Traumatic Brain Injury (TBI) is a major cause of death and disability worldwide, especially in children and young adults. TBI can be classified based on severity, mechanism or other features. Inflammation, apoptosis, oxidative stress, and ischemia are some of the important pathophys-iological mechanisms underlying neuronal loss after TBI. Lacosamide (LCM) is an anticonvulsant compound approved for the adjunctive treatment of partial-onset seizures and neuropathic pain. This study aimed to investigate possible neuroprotective effects of LCM in a rat model of TBI.
Material And Methods: Twenty-eight adult male, Wistar albino rats were used. The rats were divided into 4 groups. Group 1 was the control group (n=7). Group 2 was the trauma group (n=7) where rats were treated with 100 mg/kg saline intraperitoneally (IP) twice a day. Groups 3 and 4, rats were treated with 6 (group 3, n=7) or 20 (group 4, n=7) mg/kg Lacosamide IP twice a day. For each group, brain samples were collected 72 hours after injury. Brain samples and blood were evaluated with histopathological and biochemical methods. In addition, electroencephalograpy monitoring results were compared.
Results: The immunoreactivity of both iNOS and eNOS (oxidative stress markers) were decreased with LCM treatment compared to trauma group. The results were statistically significant (***P<0.001). The treatments of low (56,17±9,69) and high-dose LCM (43,91±9,09) were decreased the distribution of HIF-1α compared to trauma group (P<0.01). The number of apoptotic cells were decreased with LCM treatment the difference between the trauma group and 20mg/kg LCM treated group (9,55±1,02) was statistically significant (***P<0.001). Malondialdehyde level was reduced with LCM treatment. MDA level was significantly higher in trauma group compared to LCM treated groups (***P<0.001). The level of Superoxide dismutase in the trauma group was 1,86 U/ml, whereas it was 36,85 U/ml in 20mg/kg LCM treated group (***P<0.001). Delta strength of EEG in 20mg/kg LCM treated group were similar to control group values after LCM treatment.
Conclusion: No existing study has produced results suggesting that different doses of LCM has therapeutic effect against TBI, using EEG recording in addition to histological and biochemical evaluations in rats.
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| http://dx.doi.org/10.1016/j.injury.2021.02.055 | DOI Listing |
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