PMID- 24128677 OWN - NLM STAT- MEDLINE DCOM- 20131217 LR - 20131022 IS - 1554-6578 (Electronic) IS - 0022-3069 (Linking) VI - 72 IP - 11 DP - 2013 Nov TI - Neurotrophins in mesial temporal lobe epilepsy with and without psychiatric comorbidities. PG - 1029-42 LID - 10.1097/NEN.0000000000000002 [doi] AB - Despite the strong association between epilepsy and psychiatric comorbidities, data on clinicopathologic correlations are scant. We previously reported differential mossy fiber sprouting (MFS) in mesial temporal lobe epilepsy (MTLE) patients with psychosis (MTLE + P) and major depression (MTLE + D). Because neurotrophins (NTs) can promote MFS, here, we investigated MFS, neuronal density and immunoreactivity for the NT nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF) and neurotrophin 3 (NT3) in hippocampi of 14 MTLE patients without a psychiatric history, 13 MTLE + D, 13 MTLE + P, and 10 control necropsies. Mossy fiber sprouting correlated with granular layer NGF immunoreactivity and seizure frequency. Patients with secondarily generalized seizures exhibited less NGF immunoreactivity versus patients with complex partial seizures. There was greater NT immunoreactivity in MTLE versus control groups but lesser NT immunoreactivity in MTLE + P versus MTLE patients; these findings correlated with neuropsychologic scores. Patients with MTLE + D taking fluoxetine showed greater BDNF immunoreactivity than those not taking fluoxetine; MTLE + P patients taking haloperidol had decreased neuronal density and immunoreactivity for NGF and BDNF in specific subfields versus those not taking haloperidol. There were no differences in NT3 immunoreactivity among the groups. These findings support a close association between MFS and NT expression in the hippocampi of MTLE patients and suggest that distinct structural and neurochemical milieu may contribute to the genesis or maintenance of psychiatric comorbidities in MTLE. FAU - Kandratavicius, Ludmyla AU - Kandratavicius L AD - From the Department of Neurosciences and Behavior, School of Medicine of Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil (LK, MRM, JEH, JPL); Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of Sao Paulo, Sao Paulo, Brazil (LK, JEH, JPL); National Institute of Science and Technology in Translational Medicine (INCT-TM-CNPq), Brazil (JEH); Department of Surgery, School of Medicine of Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil (JAA Jr., CGC Jr.). FAU - Monteiro, Mariana Raquel AU - Monteiro MR FAU - Assirati, Joao Alberto Jr AU - Assirati JA Jr FAU - Carlotti, Carlos Gilberto Jr AU - Carlotti CG Jr FAU - Hallak, Jaime Eduardo AU - Hallak JE FAU - Leite, Joao Pereira AU - Leite JP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Neuropathol Exp Neurol JT - Journal of neuropathology and experimental neurology JID - 2985192R RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neurotrophin 3) RN - 9061-61-4 (Nerve Growth Factor) SB - IM MH - Adult MH - Aged MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Depressive Disorder, Major/complications/metabolism/pathology MH - Epilepsy, Temporal Lobe/complications/*metabolism/pathology MH - Female MH - Hippocampus/*metabolism/pathology MH - Humans MH - Male MH - Middle Aged MH - Nerve Growth Factor/*metabolism MH - Neurotrophin 3/*metabolism MH - Psychotic Disorders/complications/metabolism/pathology EDAT- 2013/10/17 06:00 MHDA- 2013/12/18 06:00 CRDT- 2013/10/17 06:00 PHST- 2013/10/17 06:00 [entrez] PHST- 2013/10/17 06:00 [pubmed] PHST- 2013/12/18 06:00 [medline] AID - 10.1097/NEN.0000000000000002 [doi] PST - ppublish SO - J Neuropathol Exp Neurol. 2013 Nov;72(11):1029-42. doi: 10.1097/NEN.0000000000000002.