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ADHD and BDNF

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https://www.readbyqxmd.com/read/28710695/serum-brain-derived-neurotrophic-factor-levels-in-treatment-na%C3%A3-ve-boys-with-attention-deficit-hyperactivity-disorder-treated-with-methylphenidate-an-8-week-observational-pretest-posttest-study
#1
Aynur Pekcanlar Akay, Halil Resmi, Sevay Alsen Güney, Handan Özek Erkuran, Gonca Özyurt, Enis Sargin, Ahmet Topuzoglu, Ali Evren Tufan
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...
July 14, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28630479/attention-cognitive-control-and-motivation-in-adhd-linking-event-related-brain-potentials-and-dna-methylation-patterns-in-boys-at-early-school-age
#2
Hartmut Heinrich, Juliane Grunitz, Valeska Stonawski, Stefan Frey, Simone Wahl, Björn Albrecht, Tamme W Goecke, Matthias W Beckmann, Johannes Kornhuber, Peter A Fasching, Gunther H Moll, Anna Eichler
In order to better understand the underpinnings of attention-deficit/hyperactivity disorder (ADHD), we targeted the relationship of attentional, cognitive control and motivational processes with DNA methylation patterns of 60 candidate genes in boys at early school age. Participants (6 to 8 years; N = 82) were selected from a German longitudinal cohort (FRANCES). ADHD-related behaviour was assessed via maternal ratings. Performance and event-related potential measures (inter alia Cue-P3 and Nogo-P3), which were recorded in a motivational go/nogo task, indicated diminished attentional orienting, reduced inhibitory response control and a larger motivational effect on performance in ADHD already at this relatively young age...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28493018/emerging-role-of-mirna-in-attention-deficit-hyperactivity-disorder-a-systematic-review
#3
REVIEW
Saurabh Srivastav, Susanne Walitza, Edna Grünblatt
Attention deficit hyperactivity disorder (ADHD) is a neuropsychiatric disorder whose aetiology still remains elusive. Nevertheless, evidence supports a high genetic contribution that interacts with environmental factors, also known to modulate epigenetic processes. These epigenetic modulators are a class of non-coding RNAs, microRNAs (miRNAs), known as post-transcriptional regulators, which have emerged as prospective players in neuropsychiatric disorders since they play a role in brain development, synapse formation, and the fine-tuning of genes underlying synaptic and memory formation...
May 10, 2017: Attention Deficit and Hyperactivity Disorders
https://www.readbyqxmd.com/read/28405874/systemic-inflammation-during-the-first-postnatal-month-and-the-risk-of-attention-deficit-hyperactivity-disorder-characteristics-among-10-year-old-children-born-extremely-preterm
#4
Elizabeth N Allred, Olaf Dammann, Raina N Fichorova, Stephen R Hooper, Scott J Hunter, Robert M Joseph, Karl Kuban, Alan Leviton, Thomas Michael O'Shea, Megan N Scott
Although multiple sources link inflammation with attention difficulties, the only human study that evaluated the relationship between systemic inflammation and attention problems assessed attention at age 2 years. Parent and/or teacher completion of the Childhood Symptom Inventory-4 (CSI-4) provided information about characteristics that screen for attention deficit hyperactive disorder (ADHD) among 793 10-year-old children born before the 28th week of gestation who had an IQ ≥ 70. The concentrations of 27 proteins in blood spots obtained during the first postnatal month were measured...
September 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28360811/evaluation-of-the-relationship-between-brain-derived-neurotropic-factor-levels-and-the-stroop-interference-effect-in-children-with-attention-deficit-hyperactivity-disorder
#5
Şeref Şimşek, Salih Gençoğlan, Tuğba Yüksel, İbrahim Kaplan, Hüseyin Aktaş, Rümeysa Alaca
INTRODUCTION: Brain-derived neurotropic factor (BDNF) has been suggested to play a role in the pathogenesis of attention-deficit hyperactivity disorder (ADHD). In addition, impairment in executive functions has been reported in children with ADHD. This study investigated the presence of a relationship between Stroop test scores and BDNF levels in children with ADHD. METHODS: The study was conducted in the Department of Child Psychiatry at Dicle University. The study included 49 children between 6 and 15 years of age (M/F: 42/7), who were diagnosed with ADHD according to DSM-IV, and who did not receive previous therapy...
December 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28293263/saikosaponin-a-alleviates-symptoms-of-attention-deficit-hyperactivity-disorder-through-downregulation-of-dat-and-enhancing-bdnf-expression-in-spontaneous-hypertensive-rats
#6
Sun Jichao, Han Xinmin, Ren Xianguo, Yin Dongqi, Zhou Rongyi, Lei Shuang, You Yue, Song Yuchen, Ying Jingnan
The disturbed dopamine availability and brain-derived neurotrophic factor (BDNF) expression are due in part to be associated with attention deficit hyperactivity disorder (ADHD). In this study, we investigated the therapeutical effect of saikosaponin a (SSa) isolated from Bupleurum Chinese DC, against spontaneously hypertensive rat (SHR) model of ADHD. Methylphenidate and SSa were orally administered for 3 weeks. Activity was assessed by open-field test and Morris water maze test. Dopamine (DA) and BDNF were determined in specific brain regions...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28249186/attention-deficit-hyperactivity-disorder-symptoms-and-stress-related-biomarkers
#7
S W N Vogel, D Bijlenga, J Verduijn, T I Bron, A T F Beekman, J J S Kooij, B W J H Penninx
OBJECTIVE: The current study examined whether (a) Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms were associated with dysregulation of stress-related mechanisms, and (b) whether ADHD symptoms interact with affective disorders in their association with dysregulated stress-related mechanisms. METHODS: Data were obtained from 2307 subjects participating in the Netherlands Study of Depression and Anxiety. Stress-related mechanisms were reflected by the following biomarkers: (1) hypothalamic-pituitary-adrenal axis indicators (salivary cortisol awakening curve, evening cortisol, cortisol suppression after a 0...
May 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27919646/role-of-neurotrophic-factors-in-attention-deficit-hyperactivity-disorder
#8
Shih-Jen Tsai
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...
November 30, 2016: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/27807606/bdnf-concentrations-and-daily-fluctuations-differ-among-adhd-children-and-respond-differently-to-methylphenidate-with-no-relationship-with-depressive-symptomatology
#9
Isabel Cubero-Millán, María-José Ruiz-Ramos, Antonio Molina-Carballo, Sylvia Martínez-Serrano, Luisa Fernández-López, Irene Machado-Casas, Pilar Tortosa-Pinto, Aida Ruiz-López, Juan-de-Dios Luna-Del-Castillo, José Uberos, Antonio Muñoz-Hoyos
RATIONALE: Brain-derived neurotrophic factor (BDNF) enhances the growth and maintenance of several monoamine neuronal systems, serves as a neurotransmitter modulator and participates in the mechanisms of neuronal plasticity. Therefore, BDNF is a good candidate for interventions in the pathogenesis and/or treatment response of attention deficit hyperactivity disorder (ADHD). OBJECTIVE: We quantified the basal concentration and daily fluctuation of serum BDNF, as well as changes after methylphenidate treatment...
January 2017: Psychopharmacology
https://www.readbyqxmd.com/read/27757130/brain-derived-neurotrophic-factor-gene-val66met-polymorphism-is-a-risk-factor-for-attention-deficit-hyperactivity-disorder-in-a-turkish-sample
#10
Onder Ozturk, Burge Kabukcu Basay, Ahmet Buber, Omer Basay, Huseyin Alacam, Ali Bacanlı, Şenay Görücü Yılmaz, Mehmet Emin Erdal, Hasan Herken, Eyup Sabri Ercan
OBJECTIVE: Attention-deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder that negatively affects different areas of life. We aimed to evaluate the associations between the Val66Met polymorphism of brain-derived neurotrophic factor (BDNF) and ADHD and to assess the effect of the BDNF polymorphism on the neurocognitive profile and clinical symptomatology in ADHD. METHODS: Two hundred one ADHD cases and 99 typically developing subjects (TD) between the ages of 8 and 15 years were involved in the study...
September 2016: Psychiatry Investigation
https://www.readbyqxmd.com/read/27561780/serum-brain-derived-neurotrophic-factor-glial-derived-neurotrophic-factor-nerve-growth-factor-and-neurotrophin-3-levels-in-children-with-attention-deficit-hyperactivity-disorder
#11
Ayhan Bilgiç, Aysun Toker, Ümit Işık, İbrahim Kılınç
It has been suggested that neurotrophins are involved in the etiopathogenesis of attention-deficit/hyperactivity disorder (ADHD). This study aimed to investigate whether there are differences in serum brain-derived neurotrophic factor (BDNF), glial-derived neurotrophic factor (GDNF), nerve growth factor (NGF), and neurotrophin-3 (NTF3) levels between children with ADHD and healthy controls. A total of 110 treatment-naive children with the combined presentation of ADHD and 44 healthy controls aged 8-18 years were enrolled in this study...
March 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/27469434/effects-of-high-frequency-repetitive-transcranial-magnetic-stimulation-rtms-on-spontaneously-hypertensive-rats-an-animal-model-of-attention-deficit-hyperactivity-disorder
#12
Jungyun Kim, Heamen Park, Seong-Lan Yu, Sungju Jee, Keun-Ah Cheon, Dong Ho Song, Seung Jun Kim, Woo-Young Im, Jaeku Kang
The current treatment of choice for attention deficit hyperactivity disorder (ADHD) is pharmacotherapy. A search for new treatment options is underway, however, as the wide application of drugs to the general population of patients with ADHD is limited by side effects and the variance of pharmacokinetic effects of the drugs in each patient. In the present study, we applied repetitive transcranial magnetic stimulation (rTMS), a non-invasive treatment used in a number of other psychiatric disorders, to spontaneously hypertensive rats (SHRs), an animal model of ADHD, in order to assess the efficacy of the treatment in modifying behavioural symptoms as well as levels of dopamine, noradrenaline, serotonin, and brain-derived neurotrophic factor (BDNF)...
October 2016: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/27457811/rare-dna-variants-in-the-brain-derived-neurotrophic-factor-gene-increase-risk-for-attention-deficit-hyperactivity-disorder-a-next-generation-sequencing-study
#13
Z Hawi, T D R Cummins, J Tong, M Arcos-Burgos, Q Zhao, N Matthews, D P Newman, B Johnson, A Vance, H S Heussler, F Levy, S Easteal, N R Wray, E Kenny, D Morris, L Kent, M Gill, M A Bellgrove
Attention-deficit hyperactivity disorder (ADHD) is a prevalent and highly heritable disorder of childhood with negative lifetime outcomes. Although candidate gene and genome-wide association studies have identified promising common variant signals, these explain only a fraction of the heritability of ADHD. The observation that rare structural variants confer substantial risk to psychiatric disorders suggests that rare variants might explain a portion of the missing heritability for ADHD. Here we believe we performed the first large-scale next-generation targeted sequencing study of ADHD in 152 child and adolescent cases and 188 controls across an a priori set of 117 genes...
April 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/27397110/preventative-treatment-in-an-animal-model-of-adhd-behavioral-and-biochemical-effects-of-methylphenidate-and-its-interactions-with-ovarian-hormones-in-female-rats
#14
Jodi L Lukkes, Nadja Freund, Britta S Thompson, Shirisha Meda, Susan L Andersen
Clinical and preclinical studies on attention deficit hyperactivity disorder (ADHD) show that juvenile males that are exposed to methylphenidate (MPH) show reduced risk for substance use later in life. In contrast, little is known about whether females have the same enduring treatment response to stimulants and how gonadal hormones influence their behavior later in life. Females received either a sham or 6-hydroxydopamine (6-OHDA) microinjection in the prefrontal cortex (PFC) at postnatal day (P)10. Subjects were then treated with Vehicle or MPH (2mg/kg, p...
September 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27217152/attention-deficit-hyperactivity-disorder-in-adults-a-systematic-review-and-meta-analysis-of-genetic-pharmacogenetic-and-biochemical-studies
#15
REVIEW
C Bonvicini, S V Faraone, C Scassellati
The adult form of attention-deficit/hyperactivity disorder has a prevalence of up to 5% and is the most severe long-term outcome of this common disorder. Family studies in clinical samples as well as twin studies suggest a familial liability and consequently different genes were investigated in association studies. Pharmacotherapy with methylphenidate (MPH) seems to be the first-line treatment of choice in adults with attention-deficit hyperactive disorder (ADHD) and some studies were conducted on the genes influencing the response to this drug...
July 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27209073/bdnf-val66met-polymorphism-and-peripheral-protein-levels-in-pediatric-bipolar-disorder-and-attention-deficit-hyperactivity-disorder
#16
C P Zeni, S Tramontina, B W Aguiar, A Salatino-Oliveira, G F Pheula, A Sharma, L Stertz, C R Moreira Maia, M Hutz, F P Kapczinski, L A Rohde
OBJECTIVE: Frontiers between pediatric bipolar disorder (PBD) and attention-deficit/hyperactivity disorder (ADHD) are not well defined. Few studies have addressed potentially different neurobiological factors between the two disorders. Brain-derived neurotrophic factor (BDNF) has been increasingly recognized for its etiologic and prognostic role in adult bipolar disorder (BD) studies. This study aimed to examine the BDNF gene polymorphism and potential alterations in BDNF serum levels in the pediatric ADHD patients with or without comorbid BD illness...
September 2016: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/26792443/transcranial-direct-current-stimulation-improves-short-term-memory-in-an-animal-model-of-attention-deficit-hyperactivity-disorder
#17
Douglas Teixeira Leffa, Andressa de Souza, Vanessa Leal Scarabelot, Liciane Fernandes Medeiros, Carla de Oliveira, Eugenio Horacio Grevet, Wolnei Caumo, Diogo Onofre de Souza, Luis Augusto Paim Rohde, Iraci L S Torres
Attention deficit hyperactivity disorder (ADHD) is characterized by impairing levels of hyperactivity, impulsivity and inattention. However, different meta-analyses have reported disruptions in short and long-term memory in ADHD patients. Previous studies indicate that mnemonic dysfunctions might be the result of deficits in attentional circuits, probably due to ineffective dopaminergic modulation of hippocampal synaptic plasticity. In this study we aimed to evaluate the potential therapeutic effects of a neuromodulatory technique, transcranial direct current stimulation (tDCS), in short-term memory (STM) deficits presented by the spontaneous hypertensive rats (SHR), the most widely used animal model of ADHD...
February 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/26244130/effects-of-hippotherapy-on-brain-function-bdnf-level-and-physical-fitness-in-children-with-adhd
#18
Namju Lee, Sok Park, Jongkyu Kim
PURPOSE: The purpose of this study was to examine the effects of hippotherapy on brain function and levels of blood-derived neurotrophic factor (BDNF) in children with attention deficit and/or hyperactivity disorder (ADHD). METHODS: The hippotherapy group (HRG) included twenty children with ADHD and the control group (CG) included 19 children. All participants' physical fitness, fMRI brain scans, and blood BDNF levels were measured at baseline and after 32 weeks of participating in hippotherapy...
June 2015: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/26152882/the-impact-of-chronic-early-administration-of-psychostimulants-on-brain-expression-of-bdnf-and-other-neuroplasticity-relevant-proteins
#19
Yaarit Simchon Tenenbaum, Abraham Weizman, Moshe Rehavi
Frequently, healthy individuals, children, and students are using stimulants to treat attention deficit hyperactivity disorder (ADHD)-like symptoms or to enhance cognitive capacity, attention and concentration. Methylphenidate, the most common treatment for ADHD, similarly to cocaine, blocks the dopamine reuptake, leading to increase in dopamine level in the synaptic cleft. Brain-derived neurotrophic factor (BDNF) and other neuroplasticity-relevant proteins have a major role in cellular plasticity during development and maturation of the brain...
October 2015: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/25950609/association-between-bdnf-gene-polymorphisms-and-attention-deficit-hyperactivity-disorder-in-korean-children
#20
Ho Jang Kwon, Mina Ha, Han Jun Jin, Jung Keun Hyun, Se Hoon Shim, Ki Chung Paik, Woo Sung Park, Myung Ho Lim
BACKGROUND: Attention deficit hyperactivity disorder (ADHD) is a common childhood neuropsychiatric disorder characterized by behavioral problems such as attention deficit, hyperactivity, and impulsivity. The brain-derived neurotrophic factor (BDNF) is the most abundant neurotrophin in the brain. AIMS: The aim of the present study was to investigate the association between the genotype and alleles for the BDNF gene in Korean children with ADHD. METHODS: The sample consisted of 180 ADHD children and 159 control children...
July 2015: Genetic Testing and Molecular Biomarkers
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