Evidence map›Paper›PMID 28710695›Full record

ArticleEuropean child & adolescent psychiatry2018

Serum brain-derived neurotrophic factor levels in treatment-naïve boys with attention-deficit/hyperactivity disorder treated with methylphenidate: an 8-week, observational pretest-posttest study.

Aynur Pekcanlar Akay, Halil Resmi, Sevay Alsen Güney, Handan Özek Erkuran, Gonca Özyurt, Enis Sargin, Ahmet Topuzoglu, Ali Evren Tufan

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In one paragraph

Article in European child & adolescent psychiatry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.9field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Plasma BDNF levels in children with ADHD before and after methylphenidate treatment.Scandinavian journal of child and adolescent psychiatry and psychology · 2026
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  10. ADHD: Reviewing the Causes and Evaluating Solutions.Journal of personalized medicine · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 1 country.

Aynur Pekcanlar AkayDepartment of Child and Adolescent Psychiatry, Dokuz Eylul University Medical Faculty, Izmir, Turkey.
Halil ResmiDepartment of Biochemistry, Dokuz Eylul University Medical Faculty, Izmir, Turkey.
Sevay Alsen GüneyDepartment of Child and Adolescent Psychiatry, Dokuz Eylul University Medical Faculty, Izmir, Turkey.
Handan Özek Erkuranİzmir Dr. BehcetUz Training and Research Hospital for Pediatric Disorders and Surgery, Izmir, Turkey.
Gonca ÖzyurtDepartment of Child and Adolescent Psychiatry, Katip Çelebi University Medical Faculty, Izmir, Turkey. goncaenginozyurt@gmail.com.
Enis Sarginİzmir Tepecik Training and Research Hospital, Izmir, Turkey.
Ahmet TopuzogluDepartment of Public Health, Kurtalan State Hospital, Siirt, Turkey.
Ali Evren TufanDepartment of Child and Adolescent Psychiatry, Abant Izzet Baysal University Medical Faculty, Bolu, Turkey.
Dokuz Eylül University · TRBolu Abant İzzet Baysal University · TRDr. Behçet Uz Çocuk Hastalıkları Hastanesi · TRIzmir Kâtip Çelebi University · TRIzmir Tepecik Eğitim ve Araştırma Hastanesi · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

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.

Indexed as

Attention Deficit Disorder with HyperactivityBrain-Derived Neurotrophic FactorCentral Nervous System StimulantsChildHumansMaleMethylphenidateTime FactorsBDNF protein, humanBrain-Derived Neurotrophic FactorCentral Nervous System StimulantsMethylphenidateAttention-deficit/hyperactivity disorderBrain-derived neurotrophic factorChildrenMethylphenidate

Identifiers

PMID28710695
OpenAlexW2735342231

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.