PMID- 25973783 OWN - NLM STAT- MEDLINE DCOM- 20151228 LR - 20181202 IS - 1573-2517 (Electronic) IS - 0165-0327 (Linking) VI - 182 DP - 2015 Aug 15 TI - Correlations between amygdala volumes and serum levels of BDNF and NGF as a neurobiological markerin adolescents with bipolar disorder. PG - 50-6 LID - S0165-0327(15)00231-1 [pii] LID - 10.1016/j.jad.2015.04.016 [doi] AB - BACKGROUND: The amygdala is repeatedly implicated as a critical component of the neurocircuitry regulating emotional valence. Studies have frequently reported reduced amygdala volumes in children and adolescents with bipolar disorder (BD). Brain derived neurotrophic factor (BDNF) and nerve growth factor (NGF) play critical roles in growth, differentiation, maintenance, and synaptic plasticity of neuronal systems in adolescent brain development. The aim of the present study was to assess amygdala volumesand its correlation with serum levels of NGF and BDNF in euthymic adolescents with BD and healthy controls. METHODS: Using structural MRI, we compared the amygdala volumes of 30 euthymic subjects with BD with 23 healthy control subjects aged between 13 and 19 years during a naturalistic clinical follow-up. The boundaries of the amygdala were outlined manually. Serum BDNF and NGF levels were measured using sandwich-ELISA and compared between the study groups. RESULTS: The right or left amygdala volume did not differ between the study groups.The right and left amygdala volumes were highly correlated with levels of BDNF in the combined BD group and the valproate-treated group.Both R and L amygdala volumes were correlated with BDNF levels in healthy controls. The left amygdala volumes were correlated with BDNF levels in the lithium-treated group. LIMITATIONS: This cross-sectional study cannot inform longitudinal changes in brain structure. Further studies with larger sample sizes are needed to improve reliability. CONCLUSIONS: The correlations between amygdala volumes and BDNF levels might be an early neuromarker for diagnosis and/or treatment response in adolescents with BD. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Inal-Emiroglu, F Neslihan AU - Inal-Emiroglu FN AD - Dokuz Eylul University Medical School, Child and Adolescent Psychiatry Department, Izmir, Turkey. Electronic address: neslihan.emiroglu@deu.edu.tr. FAU - Karabay, Nuri AU - Karabay N AD - Dokuz Eylul University Medical School, Radiology Department, Izmir, Turkey. FAU - Resmi, Halil AU - Resmi H AD - Dokuz Eylul University Medical School, Medical Biochemistry Department, Izmir, Turkey. FAU - Guleryuz, Handan AU - Guleryuz H AD - Dokuz Eylul University Medical School, Radiology Department, Izmir, Turkey. FAU - Baykara, Burak AU - Baykara B AD - Dokuz Eylul University Medical School, Child and Adolescent Psychiatry Department, Izmir, Turkey. FAU - Alsen, Sevay AU - Alsen S AD - Behcet Uz Children Hospital, Izmir, Turkey. FAU - Senturk-Pilan, Birsen AU - Senturk-Pilan B AD - Manisa Mental Health Hospital, Manisa, Turkey. FAU - Akay, Aynur AU - Akay A AD - Dokuz Eylul University Medical School, Child and Adolescent Psychiatry Department, Izmir, Turkey. FAU - Kose, Samet AU - Kose S AD - University of Texas Medical School at Houston, Department of Psychiatry and Behavioral Sciences and Center for Neurobehavioral Research on Addiction (CNRA), Houston, TX, United States. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150418 PL - Netherlands TA - J Affect Disord JT - Journal of affective disorders JID - 7906073 RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (NGF protein, human) RN - 614OI1Z5WI (Valproic Acid) RN - 7171WSG8A2 (BDNF protein, human) RN - 9061-61-4 (Nerve Growth Factor) SB - IM MH - Adolescent MH - Adult MH - Amygdala/*pathology MH - Biomarkers/blood MH - Bipolar Disorder/*blood/diagnosis MH - Brain-Derived Neurotrophic Factor/*blood MH - Cross-Sectional Studies MH - Emotions MH - Female MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Nerve Growth Factor/*blood MH - Organ Size MH - Reproducibility of Results MH - Valproic Acid/therapeutic use MH - Young Adult OTO - NOTNLM OT - Adolescents OT - Amygdala volumes OT - BDNF OT - Bipolar disorder OT - NGF EDAT- 2015/05/15 06:00 MHDA- 2015/12/29 06:00 CRDT- 2015/05/15 06:00 PHST- 2014/08/21 00:00 [received] PHST- 2015/02/10 00:00 [revised] PHST- 2015/04/08 00:00 [accepted] PHST- 2015/05/15 06:00 [entrez] PHST- 2015/05/15 06:00 [pubmed] PHST- 2015/12/29 06:00 [medline] AID - S0165-0327(15)00231-1 [pii] AID - 10.1016/j.jad.2015.04.016 [doi] PST - ppublish SO - J Affect Disord. 2015 Aug 15;182:50-6. doi: 10.1016/j.jad.2015.04.016. Epub 2015 Apr 18.