PMID- 23879572 OWN - NLM STAT- MEDLINE DCOM- 20141021 LR - 20180816 IS - 1468-1331 (Electronic) IS - 1351-5101 (Linking) VI - 21 IP - 1 DP - 2014 TI - Serum brain-derived neurotrophic factor levels in epilepsy. PG - 57-64 LID - 10.1111/ene.12232 [doi] AB - BACKGROUND AND PURPOSE: To clarify the utility of serum brain-derived neurotrophic factor (BDNF) as a biomarker for epilepsy diagnosis and severity. METHODS: Serum BDNF levels in 135 consecutive people with epilepsy meeting our criteria were assessed. Controls were 34 healthy individuals who over 12 months or longer had no complaints or signs of a neurological disorder. Serum BDNF concentrations were measured using Luminex technology. RESULTS: Gender, but not age, was found to be a significant factor related to serum BDNF levels in controls and people with epilepsy. Serum BDNF levels in people with epilepsy (mean 8798.5, SE 321.5 pg/ml) were not different from those of controls (mean 8919.5, SE 709.0 pg/ml). A multiple linear regression analysis, however, suggests that seizure frequency (P < 0.001) and epilepsy duration (P = 0.025) negatively correlate with serum BDNF levels independently of other factors. When BDNF cut-off values of 6260 pg/ml were used, the sensitivity for distinguishing people with daily or more frequent seizures from those with fewer seizures was 80% and specificity was 90%. CONCLUSIONS: It seems that the concentration of BDNF in serum is associated with disease severity in people with epilepsy and may be a helpful marker for severity. CI - (c) 2013 The Author(s) European Journal of Neurology (c) 2013 EFNS. FAU - Hong, Z AU - Hong Z AD - Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China. FAU - Li, W AU - Li W FAU - Qu, B AU - Qu B FAU - Zou, X AU - Zou X FAU - Chen, J AU - Chen J FAU - Sander, J W AU - Sander JW FAU - Zhou, D AU - Zhou D LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130723 PL - England TA - Eur J Neurol JT - European journal of neurology JID - 9506311 RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Biomarkers/*blood MH - Brain-Derived Neurotrophic Factor/*blood MH - Child MH - Epilepsy/*blood MH - Female MH - Humans MH - Male MH - Middle Aged MH - Young Adult OTO - NOTNLM OT - Luminex OT - biomarker OT - brain-derived neurotrophic factor OT - epilepsy OT - serum EDAT- 2013/07/25 06:00 MHDA- 2014/10/22 06:00 CRDT- 2013/07/25 06:00 PHST- 2013/05/05 00:00 [received] PHST- 2013/06/05 00:00 [accepted] PHST- 2013/07/25 06:00 [entrez] PHST- 2013/07/25 06:00 [pubmed] PHST- 2014/10/22 06:00 [medline] AID - 10.1111/ene.12232 [doi] PST - ppublish SO - Eur J Neurol. 2014;21(1):57-64. doi: 10.1111/ene.12232. Epub 2013 Jul 23.