PMID- 27919646 OWN - NLM STAT- MEDLINE DCOM- 20180209 LR - 20180816 IS - 1879-0305 (Electronic) IS - 1359-6101 (Linking) VI - 34 DP - 2017 Apr TI - Role of neurotrophic factors in attention deficit hyperactivity disorder. PG - 35-41 LID - S1359-6101(16)30138-1 [pii] LID - 10.1016/j.cytogfr.2016.11.003 [doi] AB - Neurotrophins (NTs), a family of proteins including nerve growth factor, brain-derived neurotrophic factor (BDNF), neurotrophin-3, and neurotrophin-4, are essential for neural growth, survival, and differentiation, and are therefore crucial for brain development. Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by problems of inattention and/or hyperactivity-impulsivity. ADHD is one of the most common childhood onset psychiatric disorders. Studies have suggested that both genetic and environmental factors influence the development of the disorder, although the precise causes of ADHD have not yet been identified. In this review, we assess the role of NTs in the pathophysiology of ADHD. Preclinical evidence indicates that BDNF knockout mice are hyperactive, and an ADHD rodent model exhibited decreased cerebral BDNF levels. Several lines of evidence from clinical studies, including blood level and genetic studies, have suggested that NTs are involved in the pathogenesis of ADHD and in the mechanism of biological treatments for ADHD. Future directions for research are proposed, such as using blood NTs as ADHD biomarkers, optimizing NT genetic studies in ADHD, considering NTs as a link between ADHD and other comorbid mental disorders, and investigating methods for optimally modulating NT signaling to discover novel therapeutics for treating ADHD. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Tsai, Shih-Jen AU - Tsai SJ AD - Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan. Electronic address: tsai610913@gmail.com. LA - eng PT - Journal Article PT - Review DEP - 20161130 PL - England TA - Cytokine Growth Factor Rev JT - Cytokine & growth factor reviews JID - 9612306 RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Nerve Growth Factors) RN - 7171WSG8A2 (BDNF protein, human) RN - P658DCA9XD (neurotrophin 4) SB - IM MH - Animals MH - Attention Deficit Disorder with Hyperactivity/*physiopathology/therapy MH - Biomarkers/blood MH - Brain-Derived Neurotrophic Factor/blood/genetics/*physiology/therapeutic use MH - Child MH - Clinical Studies as Topic MH - Humans MH - Mice MH - Mice, Knockout MH - Nerve Growth Factors/blood/genetics/*physiology/therapeutic use OTO - NOTNLM OT - Attention deficit hyperactivity disorder OT - BDNF OT - Neurotrophins EDAT- 2016/12/07 06:00 MHDA- 2018/02/10 06:00 CRDT- 2016/12/07 06:00 PHST- 2016/10/24 00:00 [received] PHST- 2016/11/15 00:00 [revised] PHST- 2016/11/25 00:00 [accepted] PHST- 2016/12/07 06:00 [pubmed] PHST- 2018/02/10 06:00 [medline] PHST- 2016/12/07 06:00 [entrez] AID - S1359-6101(16)30138-1 [pii] AID - 10.1016/j.cytogfr.2016.11.003 [doi] PST - ppublish SO - Cytokine Growth Factor Rev. 2017 Apr;34:35-41. doi: 10.1016/j.cytogfr.2016.11.003. Epub 2016 Nov 30.