PMID- 28710695 OWN - NLM STAT- MEDLINE DCOM- 20180502 LR - 20181202 IS - 1435-165X (Electronic) IS - 1018-8827 (Linking) VI - 27 IP - 1 DP - 2018 Jan TI - Serum brain-derived neurotrophic factor levels in treatment-naive boys with attention-deficit/hyperactivity disorder treated with methylphenidate: an 8-week, observational pretest-posttest study. PG - 127-135 LID - 10.1007/s00787-017-1022-y [doi] AB - Brain-derived neurotrophic factor (BDNF) is an important neurotrophin in the brain that modulates dopaminergic neurons. In this study, we aimed to investigate the changes in serum BDNF levels of children with attention-deficit/hyperactivity disorder (ADHD) in response to OROS methylphenidate treatment. We also aimed to determine whether there were any pre-post-differences between ADHD subtypes and comorbid psychiatric disorders in serum BDNF levels. Fifty male children with ADHD and 50 male healthy controls within the age range of 6-12 years were recruited to the study. The psychiatric diagnoses were determined by applying a structured interview with Kiddie schedule for affective disorders and schizophrenia for school-age children-present and lifetime version. The symptom severity of ADHD was measured using the Clinical Global Impression ADHD Severity Scale (CGI-S). Physicians completed Du Paul ADHD questionnaires. The levels of serum BDNF were assessed before and after 8 weeks of treatment with effective dosages of OROS methylphenidate. In the present study, the mean serum BDNF levels of boys with ADHD and of the healthy controls were 2626.33 +/- 1528.05 and 2989.11 +/- 1420.08 pg/mL, respectively. Although there were no statistically significant difference between the ADHD group and healthy controls at baseline (p = 0.22), the increase of serum BDNF was statistically significant from baseline to endpoint in the ADHD group (p = 0.04). The mean serum BDNF levels at baseline and endpoint of the ADHD group were 2626.33 +/- 1528.05 and 3255.80 +/- 1908.79 pg/mL, respectively. The serum BDNF levels of ADHD-inattentive subtype were significantly lower at baseline (p = 0.02), whereas BDNF levels post-treatment showed no significant difference. The increase of serum BDNF levels with methylphenidate treatment after 8 weeks was significantly higher in the inattentive group (p = 0.005). The increase of serum BDNF levels with methylphenidate treatment after 8 weeks in boys with ADHD may support the potential role of BDNF in the pathophysiology of ADHD. The role of BDNF in ADHD subtypes in particular should be evaluated with further, larger studies. FAU - Akay, Aynur Pekcanlar AU - Akay AP AD - Department of Child and Adolescent Psychiatry, Dokuz Eylul University Medical Faculty, Izmir, Turkey. FAU - Resmi, Halil AU - Resmi H AD - Department of Biochemistry, Dokuz Eylul University Medical Faculty, Izmir, Turkey. FAU - Guney, Sevay Alsen AU - Guney SA AD - Department of Child and Adolescent Psychiatry, Dokuz Eylul University Medical Faculty, Izmir, Turkey. FAU - Erkuran, Handan Ozek AU - Erkuran HO AD - Izmir Dr. BehcetUz Training and Research Hospital for Pediatric Disorders and Surgery, Izmir, Turkey. FAU - Ozyurt, Gonca AU - Ozyurt G AD - Department of Child and Adolescent Psychiatry, Katip Celebi University Medical Faculty, Izmir, Turkey. goncaenginozyurt@gmail.com. FAU - Sargin, Enis AU - Sargin E AD - Izmir Tepecik Training and Research Hospital, Izmir, Turkey. FAU - Topuzoglu, Ahmet AU - Topuzoglu A AD - Department of Public Health, Kurtalan State Hospital, Siirt, Turkey. FAU - Tufan, Ali Evren AU - Tufan AE AD - Department of Child and Adolescent Psychiatry, Abant Izzet Baysal University Medical Faculty, Bolu, Turkey. LA - eng PT - Journal Article DEP - 20170714 PL - Germany TA - Eur Child Adolesc Psychiatry JT - European child & adolescent psychiatry JID - 9212296 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Central Nervous System Stimulants) RN - 207ZZ9QZ49 (Methylphenidate) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Attention Deficit Disorder with Hyperactivity/*drug therapy/psychology MH - Brain-Derived Neurotrophic Factor/*blood MH - Central Nervous System Stimulants/*therapeutic use MH - Child MH - Humans MH - Male MH - Methylphenidate/*therapeutic use MH - Time Factors OTO - NOTNLM OT - Attention-deficit/hyperactivity disorder OT - Brain-derived neurotrophic factor OT - Children OT - Methylphenidate EDAT- 2017/07/16 06:00 MHDA- 2018/05/03 06:00 CRDT- 2017/07/16 06:00 PHST- 2017/03/09 00:00 [received] PHST- 2017/06/29 00:00 [accepted] PHST- 2017/07/16 06:00 [pubmed] PHST- 2018/05/03 06:00 [medline] PHST- 2017/07/16 06:00 [entrez] AID - 10.1007/s00787-017-1022-y [pii] AID - 10.1007/s00787-017-1022-y [doi] PST - ppublish SO - Eur Child Adolesc Psychiatry. 2018 Jan;27(1):127-135. doi: 10.1007/s00787-017-1022-y. Epub 2017 Jul 14.