TY - JOUR ID - 8581 TI - Therapeutic effects of ellagic acid on memory, hippocampus electrophysiology deficits, and elevated TNF-α level in brain due to experimental traumatic brain injury JO - Iranian Journal of Basic Medical Sciences JA - IJBMS LA - en SN - 2008-3866 AU - Mashhadizadeh, Shahram AU - Farbood, Yaghoub AU - Dianat, Mahin AU - Khodadadi, Ali AU - Sarkaki, Alireza AD - Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Golestan Blvd, Ahvaz, Iran AD - Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Golestan Blvd, Ahvaz, Iran Y1 - 2017 PY - 2017 VL - 20 IS - 4 SP - 399 EP - 407 KW - Blood-brain barrier KW - Ellagic acid KW - LTP KW - Memory KW - TNF-α KW - Traumatic brain injury DO - 10.22038/ijbms.2017.8581 N2 - Objective(s): Cognitive defects such as learning and memory impairment are amongst the most repetitious sequelae after sever and moderate traumatic brain injury (TBI). It was suggested that ellagic acid (EA), an innate phenol product, display neuroprotective properties against oxidative and inflammatory damages after brain injury. The object of the current study was therapeutic properties of EA on blood-brain barrier (BBB) interruption and elevated content of TNF-α in brain tissue followed by neurologic aftereffects, cognitive and brain electrophysiology deficits as outcomes of diffuse TBI in rat. Materials and Methods: TBI was induced by a 200 g weight falling by a 2-m height through a free-falling tube onto the head of anesthetized rat. TBI rats treated immediately after trauma with EA             (100 mg/kg, IP) once every 8 hr until 48 hr later. Neurologic outcomes, passive avoidance task (PAT), hippocampal long-term potentiation (LTP), BBB permeability and content of TNF-α in brain tissue were evaluated. Results: TBI induced significant impairments in neurological score, BBB function, PAT and hippocampal LTP in TBI+Veh group in compare with Sham+Veh (P<0.001). EA treatment decreased neurologic severity score (NSS), restored increased BBB permeability, cognitive and hippocampal LTP abnormalities, and elevated brain content of TNF-α due to TBI significantly (P<0.001). Conclusion: Our findings propose that EA can restore NSS, cognitive and LTP deficits and prevent brain inflammation may by restore BBB permeability as well as lowering brain content of TNF-α following TBI. UR - https://ijbms.mums.ac.ir/article_8581.html L1 - https://ijbms.mums.ac.ir/article_8581_6ed03decf4cbf55987e5a252bb90ce5c.pdf ER -