Evidence map›Paper›PMID 24346111›Full record

ArticlePediatric research2014

Systemic glycerol decreases neonatal rabbit brain and cerebellar growth independent of intraventricular hemorrhage.

Christopher M Traudt, Ron J McPherson, Colin Studholme, Kathleen J Millen, Sandra E Juul

Open access · bronzeAbstract read
In one paragraph

Article in Pediatric research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

8 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Neurotoxicity of e-cigarettes.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2020
    Review
  5. Article
  6. Article
  7. Article
  8. Is the ferret a suitable species for studying perinatal brain injury?International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience · 2015
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Christopher M TraudtDepartment of Pediatrics, University of Washington, Seattle, Washington.
Ron J McPhersonDepartment of Pediatrics, University of Washington, Seattle, Washington.
Colin StudholmeDepartment of Pediatrics, University of Washington, Seattle, Washington.
Kathleen J MillenDepartment of Pediatrics, University of Washington, Seattle, Washington.
Sandra E JuulDepartment of Pediatrics, University of Washington, Seattle, Washington.
University of Washington · US

Funding

Cellular and Molecular Biology of Childhood DiseaseK12HD043376 · NICHD · UNIVERSITY OF WASHINGTON · PI STAPLETON, FIELDING BRUDER · 2003 to 2012
$3.3M
Mapping Patterns of Brain Tissue Growth in Premature NeonatesR01NS061957 · NINDS · UNIVERSITY OF WASHINGTON · PI STUDHOLME, COLIN · 2009 to 2013
$1.7M
NICHD NIH HHS 5K12HD043376-10NICHD NIH HHS K12 HD043376NINDS NIH HHS R01 NS061957
6 · The paper itself

Abstract

backgroundCerebellar hypoplasia is a common problem in preterm infants and infants suffering from intraventricular hemorrhage (IVH). To evaluate the effects of IVH on cerebellar growth and development, we used a neonatal rabbit model of systemic glycerol to produce IVH.

methodsNew Zealand White rabbit kits were surgically delivered 2 d preterm and treated with intraperitoneal glycerol (3.25-6.5 g/kg). Controls were born at term. IVH was documented by ultrasonography. Brain volumes determined by magnetic resonance imaging, cerebellar foliation, proliferation (Ki-67), and Purkinje cell density were assessed at 2 wk of life. Tissue glycerol and glutathione concentrations were measured.

resultsGlycerol increased IVH, subarachnoid hemorrhages, and mortality in a dose-dependent manner. Total cerebellar volumes, cerebellar foliation, and cerebellar proliferation were decreased in a dose-dependent manner. Glycerol accumulated rapidly in blood, brain, and liver and was associated with increased glutathione concentration. All of these results were independent of IVH status.

conclusionCerebellar hypoplasia was induced after glycerol administration in a dose-dependent manner. Given the rapid tissue accumulation of glycerol, dose-dependent decrease in brain growth, and lack of IVH effect on measured outcomes, we question the validity of this model because glycerol toxicity cannot be ruled out. A better physiological model of IVH is needed.

Indexed as

AnimalsAnimals, NewbornCase-Control StudiesCerebellumDevelopmental DisabilitiesDose-Response Relationship, DrugGlycerolHeart VentriclesHemorrhageInjections, IntraperitonealMagnetic Resonance ImagingNervous System MalformationsRabbitsTime FactorsUltrasonographyGlycerol

Identifiers

PMID24346111
PMCPMC3943708
OpenAlexW2020885830

What OpenQuestion holds

Textmetadata
LicenceTDM
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.