Evidence map›Paper›PMID 28542295›Full record

ArticlePloS one2017

Therapeutic benefits of phosphodiesterase 4B inhibition after traumatic brain injury.

Nicole M Wilson, Mark E Gurney, W Dalton Dietrich, Coleen M Atkins

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. 3,3'-Diindolylmethane improves pathology and neurological outcome following traumatic brain injury.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  3. Review
  4. Review
  5. 3D-QSAR Studies on High-affinity Phosphodiestera.Current medicinal chemistry · 2025
    Article
  6. Review
  7. Article
  8. Article
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  11. Review
  12. Article
  13. Article
  14. Review
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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

4 authors at 2 institutions in 1 country.

Nicole M WilsonDepartment of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida, United States of America.ORCID http://orcid.org/0000-0001-6127-1777
Mark E GurneyTetra Discovery Partners, Grand Rapids, Michigan, United States of America.
W Dalton DietrichDepartment of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida, United States of America.
Coleen M AtkinsDepartment of Neurological Surgery, The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, Florida, United States of America.
University of Miami · USMichigan United · US

Funding

Phosphodiesterase-4B (PDE4B) Inhibitors for Psychiatric DiseaseR44MH091791 · NIMH · TETRA DISCOVERY PARTNERS, INC. · PI GURNEY, MARK E · 2013 to 2018
$6.4M
Cyclic Nucleotide Regulation in Traumatic Brain Injury and Alzheimer's DiseaseR01NS056072 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ATKINS, COLEEN M., DIETRICH, W DALTON · 2007 to 2018
$4.1M
Phosphodiesterase Type IV (PDE4) Isoform Selective Allosteric Modulators For PsycR43MH091791 · NIMH · TETRA DISCOVERY PARTNERS, INC. · PI GURNEY, MARK E · 2011 to 2012
$696k
NIH Neurotrauma Summer Research Experience ProgramR25NS083064 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ANDERSON, KIMBERLY DAWN, DIETRICH, W DALTON · 2013 to 2017
$367k
Role of HuD During Regeneration of the Red NucleusF32NS041710 · NINDS · UNIVERSITY OF CALIFORNIA IRVINE · PI ANDERSON, KIMBERLY DAWN · 2001 to 2004
$212k
The Role of Phosphodiesterase 4B in Inflammation after Traumatic Brain InjuryF31NS089351 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI WILSON, NICOLE MARIE · 2014 to 2016
$129k
NIMH NIH HHS R43 MH091791NIMH NIH HHS R44 MH091791NINDS NIH HHS F31 NS089351NINDS NIH HHS F32 NS041710NINDS NIH HHS R01 NS056072NINDS NIH HHS R25 NS083064
6 · The paper itself

Abstract

Traumatic brain injury (TBI) initiates a deleterious inflammatory response that exacerbates pathology and worsens outcome. This inflammatory response is partially mediated by a reduction in cAMP and a concomitant upregulation of cAMP-hydrolyzing phosphodiesterases (PDEs) acutely after TBI. The PDE4B subfamily, specifically PDE4B2, has been found to regulate cAMP in inflammatory cells, such as neutrophils, macrophages and microglia. To determine if PDE4B regulates inflammation and subsequent pathology after TBI, adult male Sprague Dawley rats received sham surgery or moderate parasagittal fluid-percussion brain injury (2 ± 0.2 atm) and were then treated with a PDE4B - selective inhibitor, A33, or vehicle for up to 3 days post-surgery. Treatment with A33 reduced markers of microglial activation and neutrophil infiltration at 3 and 24 hrs after TBI, respectively. A33 treatment also reduced cortical contusion volume at 3 days post-injury. To determine whether this treatment paradigm attenuated TBI-induced behavioral deficits, animals were evaluated over a period of 6 weeks after surgery for forelimb placement asymmetry, contextual fear conditioning, water maze performance and spatial working memory. A33 treatment significantly improved contextual fear conditioning and water maze retention at 24 hrs post-training. However, this treatment did not rescue sensorimotor or working memory deficits. At 2 months after surgery, atrophy and neuronal loss were measured. A33 treatment significantly reduced neuronal loss in the pericontusional cortex and hippocampal CA3 region. This treatment paradigm also reduced cortical, but not hippocampal, atrophy. Overall, these results suggest that acute PDE4B inhibition may be a viable treatment to reduce inflammation, pathology and memory deficits after TBI.

Indexed as

AnimalsBrain Injuries, TraumaticCells, CulturedCyclic AMPCyclic Nucleotide Phosphodiesterases, Type 4MaleMaze LearningMemory DisordersMicrogliaPyrimidinesRatsRats, Sprague-DawleyCyclic AMPCyclic Nucleotide Phosphodiesterases, Type 4PDE4B protein, ratPyrimidines

Identifiers

PMID28542295
PMCPMC5438188
OpenAlexW2615457196

What OpenQuestion holds

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LicenceCC BY
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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.