Evidence map›Paper›PMID 27807606›Full record

ArticlePsychopharmacology2017

BDNF concentrations and daily fluctuations differ among ADHD children and respond differently to methylphenidate with no relationship with depressive symptomatology.

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 and 1 more

Abstract read
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In one paragraph

Article in Psychopharmacology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

16 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
  2. Plasma BDNF levels in children with ADHD before and after methylphenidate treatment.Scandinavian journal of child and adolescent psychiatry and psychology · 2026
    Article
  3. Biomarkers of Depression among Adolescent Girls: BDNF and Epigenetics.International journal of molecular sciences · 2024
    Article
  4. Article
  5. Biomarkers in Child and Adolescent Depression.Child psychiatry and human development · 2023
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. ADHD: Reviewing the Causes and Evaluating Solutions.Journal of personalized medicine · 2021
    Review
  12. Review
  13. Article
  14. Review
  15. [Research advances in pathogenesis of attention deficit hyperactivity disorder].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2018
    Article
  16. Review
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

11 authors at 2 institutions in 1 country.

Isabel Cubero-MillánDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
María-José Ruiz-RamosDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
Antonio Molina-CarballoDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain. amolinac@ugr.es.
Sylvia Martínez-SerranoDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
Luisa Fernández-LópezDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
Irene Machado-CasasDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
Pilar Tortosa-PintoDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
Aida Ruiz-LópezDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
Juan-de-Dios Luna-Del-CastilloDepartamento de BioEstadística, Facultad de Medicina, Universidad de Granada, Granada, Spain.
José UberosDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain.
Antonio Muñoz-HoyosDepartamento de Pediatría, Facultad de Medicina, Universidad de Granada, Avda de Madrid 12, 18012, Granada, Spain. amunozh@ugr.es.
Universidad de Granada · ESInstituto de Investigación Biosanitaria de Granada · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleBrain-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).

objectiveWe quantified the basal concentration and daily fluctuation of serum BDNF, as well as changes after methylphenidate treatment.

methodA total of 148 children, 4-5 years old, were classified into groups as follows: ADHD group (n = 107, DSM-IV-TR criteria) and a control group (CG, n = 41). Blood samples were drawn at 2000 and 0900 hours from both groups, and after 4.63 ± 2.3 months of treatment, blood was drawn only from the ADHD group for BDNF measurements. Factorial analysis was performed (Stata software, version 12.0).

resultsMorning BDNF (36.36 ± 11.62 ng/ml) in the CG was very similar to that in the predominantly inattentive children (PAD), although the evening concentration in the CG was higher (CG 31.78 ± 11.92 vs PAD 26.41 ± 11.55 ng/ml). The hyperactive-impulsive group, including patients with comorbid conduct disorder (PHI/CD), had lower concentrations. Methylphenidate (MPH) did not modify the concentration or the absence of daily BDNF fluctuations in the PHI/CD children; however, MPH induced a significant decrease in BDNF in PAD and basal day/night fluctuations disappeared in this ADHD subtype. This profile was not altered by the presence of depressive symptoms.

conclusionsOur data support a reduction in BDNF in untreated ADHD due to the lower concentrations in PHI/CD children, which is similar to other psychopathologic and cognitive disorders. MPH decreased BDNF only in the PAD group, which might indicate that BDNF is not directly implicated in the methylphenidate-induced amelioration of the neuropsychological and organic immaturity of ADHD patients.

Indexed as

AdolescentAttention Deficit Disorder with HyperactivityBiomarkersBrain-Derived Neurotrophic FactorCentral Nervous System StimulantsChildChild, PreschoolDepressionFemaleHumansImpulsive BehaviorMaleMethylphenidateProspective StudiesTreatment OutcomeBDNF protein, humanBiomarkersBrain-Derived Neurotrophic FactorCentral Nervous System StimulantsMethylphenidateADHDADHD subgroupsBDNFChildrenComorbiditiesDaily rhythmsDepressive symptomsHumanMethylphenidateSerum

Identifiers

PMID27807606
OpenAlexW2548818585

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.