Evidence map›Paper›PMID 21250918›Full record

ArticleJournal of neurotrauma2011

Cyclosporin A preserves mitochondrial function after traumatic brain injury in the immature rat and piglet.

Todd J Kilbaugh, Sunita Bhandare, David H Lorom, Manda Saraswati, Courtney L Robertson, Susan S Margulies

Open access · greenAbstract read
In one paragraph

Article in Journal of neurotrauma, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Cyclosporine as Therapy for Traumatic Brain Injury.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Increased cerebral mitochondrial dysfunction and reactive oxygen species with cardiopulmonary bypass.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2021
    Article
  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

6 authors at 2 institutions in 1 country.

Todd J KilbaughUniversity of Pennsylvania School of Medicine, Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
Sunita Bhandare
David H Lorom
Manda Saraswati
Courtney L Robertson
Susan S Margulies
Johns Hopkins Medicine · USUniversity of Pennsylvania · US

Funding

Biomechanics of Pediatric Head InjuryR01NS039679 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI MARGULIES, SUSAN SHEPS · 2001 to 2011
$5.0M
PRECLINICAL CYCLOSPORIN A THERAPY TRIALS FOR PEDIATRIC TBIU01NS069545 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI DUHAIME, ANN-CHRISTINE, MARGULIES, SUSAN SHEPS · 2011 to 2017
$3.5M
NINDS NIH HHS R01NS039679NINDS NIH HHS U01 NS069545
6 · The paper itself

Abstract

Cyclosporin A (CsA) has been shown to be neuroprotective in mature animal models of traumatic brain injury (TBI), but its effects on immature animal models of TBI are unknown. In mature animal models, CsA inhibits the opening of the mitochondrial permeability transition pore (MPTP), thereby maintaining mitochondrial homeostasis following injury by inhibiting calcium influx and preserving mitochondrial membrane potential. The aim of the present study was to evaluate CsA's ability to preserve mitochondrial bioenergetic function following TBI (as measured by mitochondrial respiration and cerebral microdialysis), in two immature models (focal and diffuse), and in two different species (rat and piglet). Three groups were studied: injured+CsA, injured+saline vehicle, and uninjured shams. In addition, we evaluated CsA's effects on cerebral hemodynamics as measured by a novel thermal diffusion probe. The results demonstrate that post-injury administration of CsA ameliorates mitochondrial dysfunction, preserves cerebral blood flow (CBF), and limits neuropathology in immature animals 24 h post-TBI. Mitochondria were isolated 24 h after controlled cortical impact (CCI) in rats and rapid non-impact rotational injury (RNR) in piglets, and CsA ameliorated cerebral bioenergetic crisis with preservation of the respiratory control ratio (RCR) to sham levels. Results were more dramatic in RNR piglets than in CCI rats. In piglets, CsA also preserved lactate pyruvate ratios (LPR), as measured by cerebral microdialysis and CBF at sham levels 24 h after injury, in contrast to the significant alterations seen in injured piglets compared to shams (p<0.01). The administration of CsA to piglets following RNR promoted a 42% decrease in injured brain volume (p<0.01). We conclude that CsA exhibits significant neuroprotective activity in immature models of focal and diffuse TBI, and has exciting translational potential as a therapeutic agent for neuroprotection in children.

Indexed as

AnimalsBrain InjuriesCell RespirationCerebrovascular CirculationCyclosporineFemaleImmunosuppressive AgentsMicrodialysisMitochondriaNeuroprotective AgentsRatsRats, Sprague-DawleySwineCyclosporineImmunosuppressive AgentsNeuroprotective Agents

Identifiers

PMID21250918
PMCPMC3125546
OpenAlexW2134409107

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.