Evidence map›Paper›PMID 21847645›Full record

ArticleChild's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery2011

Reactive astrocytosis in feline neonatal hydrocephalus: acute, chronic, and shunt-induced changes.

Ramin Eskandari, Carolyn A Harris, James P McAllister

Abstract read
PubMed Publisher
In one paragraph

Article in Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, 2011. 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
1.7field-weighted citation impact, top 18% 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, 40 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Novel therapeutic modulators of astrocytes for hydrocephalus.Frontiers in molecular neuroscience · 2022
    Review
  5. Article
  6. Article
  7. Erythropoietin protects the subventricular zone and inhibits reactive astrogliosis in kaolin-induced hydrocephalic rats.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2019
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Differential vulnerability of white matter structures to experimental infantile hydrocephalus detected by diffusion tensor imaging.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2014
    Article
  15. Fingerprint changes in CSF composition associated with different aetiologies in human neonatal hydrocephalus: inflammatory cytokines.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2014
    Article
  16. Kaolin-induced ventriculomegaly at weaning produces long-term learning, memory, and motor deficits in rats.International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience · 2014
    Article
  17. High resolution MRI anatomy of the cat brain at 3 Tesla.Journal of neuroscience methods · 2014
    Article
  18. Review
  19. Article
  20. Article
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

3 authors at 1 institution in 1 country.

Ramin EskandariDivision of Pediatric Neurosurgery, Department of Neurosurgery, University of Utah, 175 North Medical Drive, Salt Lake City, UT 84132, USA.
Carolyn A Harris
James P McAllister
University of Utah · US

Funding

Reducing infections and blockage associated with long-term implantation of ventriculoperitoneal and related shuntsR44NS139774 · NINDS · WYNNVISION, LLC · PI HARRIS, CAROLYN A, MCALLISTER, JAMES PATTERSON · 2025 to 2025
$306k
NINDS NIH HHS R44 NS139774
6 · The paper itself

Abstract

purposeReactive astrocytosis has been implicated in injury and recovery patterns associated with hydrocephalus. To investigate temporal changes in astrogliosis during the early progression of hydrocephalus, after shunting, and after long-term ventriculomegaly, glial fibrillary protein (GFAP) levels were analyzed in a feline model.

methodsObstructive hydrocephalus was induced in 10-day-old kittens by intracisternal injections of 25% kaolin. Acute non-shunted animals were killed 15 days post-kaolin injection to represent the pre-shunt condition. Shunt-treated animals received ventriculoperitoneal shunts 15 days post-injection and were killed 10 or 60 days later to represent short- and long-term recovery periods. Chronic untreated animals had Ommaya reservoirs implanted 15 days post-kaolin, which were tapped intermittently until they were killed 60 days later. Ventriculomegaly was monitored by neuroimaging before and after shunting and at death. RNA and total protein from primary visual cortex were analyzed by Northern and Western blotting.

resultsGFAP RNA and protein levels for acute and chronic non-shunted hydrocephalic animals were 77% and 247% (p < 0.01) and 659% (p < 0.05) and 871% (p < 0.05) higher than controls, respectively. Shunted animals with short-term recovery demonstrated a mismatch in GFAP levels, with RNA expression decreasing 26% and protein increasing 335% (p < 0.01). Shunted animals with a long-term recovery exhibited GFAP RNA and protein levels 201% and 357% above normal, respectively.

conclusionsThese results indicate that a reactive astrocytic response continues to rise dramatically in chronic hydrocephalus, suggesting ongoing gliosis and potential damage. Shunting partially ameliorates the continuation of astrogliosis, but does not completely reverse this inflammatory reaction even after a long recovery.

Indexed as

ActinsAnimalsAnimals, NewbornCatsDisease Models, AnimalDisease ProgressionGene Expression RegulationGlial Fibrillary Acidic ProteinGliosisHydrocephalusMagnetic Resonance ImagingRNA, MessengerTime FactorsVentriculoperitoneal ShuntActinsGlial Fibrillary Acidic ProteinRNA, Messenger

Identifiers

PMID21847645
OpenAlexW2090212126

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.