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- Brain expression of inflammatory mediators in Mesial Temporal Lobe Epilepsy patientsPublication . Leal, Bárbara; Chaves, João; Carvalho, Cláudia; Rangel, Rui; Santos, Agostinho; Bettencourt, Andreia; Lopes, João; Ramalheira, João; Silva, Berta M.; da Silva, António Martins; Costa, Paulo P.Neuroinflammation may be central in epileptogenesis. In this study we analysed inflammatory reaction markers in brain tissue of Mesial Temporal Lobe Epilepsy with Hippocampal Sclerosis (MTLE-HS) patients. TLR4, IL-1β and IL-10 gene expression as well as the presence of activated HLA-DR+ microglia was evaluated in 23 patients and 10 cadaveric controls. Inflammation characterized by the presence of HLA-DR+microglia and TLR4, IL-1β overexpression was evident in hippocampus and anterior temporal cortex of MTLE-HS patients. Anti-inflammatory IL-10 was also overexpressed in MTLE-HS patients. Our results show that hippocampal neuroinflammation extends beyond lesional limits, as far as the anterior temporal cortex.