Evidence map›Paper›PMID 22069482›Full record

ArticlePloS one2011

Anesthetic propofol attenuates the isoflurane-induced caspase-3 activation and Aβ oligomerization.

Yiying Zhang, Yu Zhen, Yuanlin Dong, Zhipeng Xu, Yun Yue, Todd E Golde, Rudolph E Tanzi, Robert D Moir, Zhongcong Xie

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 65 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Comprehensive Review of Anesthetic Strategies for Patients With Neurodegenerative Diseases.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. General Anesthetic Use in Fragile X Spectrum Disorders.Journal of neurosurgical anesthesiology · 2019
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Perioperative cognitive protection.British journal of anaesthesia · 2016
    Review
  16. Article
  17. Article
  18. Review
  19. Review
  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

9 authors at 5 institutions in 2 countries.

Yiying ZhangGeriatric Anesthesia Research Unit, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts, United States of America.
Yu Zhen
Yuanlin Dong
Zhipeng Xu
Yun Yue
Todd E Golde
Rudolph E Tanzi
Robert D Moir
Zhongcong Xie
Massachusetts General Hospital · USCapital Medical University · CNHarvard University · USMaineGeneral Medical Center · USUniversity of Florida · US

Funding

General Anesthesia and Alzheimer's Disease NeuropathogenesisR01GM088801 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI XIE, ZHONGCONG · 2009 to 2017
$3.1M
Functional Analysis of Alzheimer's Disease GenesK08NS048140 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI XIE, ZHONGCONG · 2005 to 2009
$867k
Role of Anesthetic Isoflurane in Alzheimer's Disease: In Vivo InvestigationR21AG029856 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI XIE, ZHONGCONG · 2008 to 2009
$408k
NIA NIH HHS R21 AG029856NIGMS NIH HHS R01 GM088801NINDS NIH HHS K08 NS048140
6 · The paper itself

Abstract

Accumulation and deposition of β-amyloid protein (Aβ) are the hallmark features of Alzheimer's disease. The inhalation anesthetic isoflurane has been shown to induce caspase activation and increase Aβ accumulation. In addition, recent studies suggest that isoflurane may directly promote the formation of cytotoxic soluble Aβ oligomers, which are thought to be the key pathological species in AD. In contrast, propofol, the most commonly used intravenous anesthetic, has been reported to have neuroprotective effects. We therefore set out to compare the effects of isoflurane and propofol alone and in combination on caspase-3 activation and Aβ oligomerization in vitro and in vivo. Naïve and stably-transfected H4 human neuroglioma cells that express human amyloid precursor protein, the precursor for Aβ; neonatal mice; and conditioned cell culture media containing secreted human Aβ40 or Aβ42 were treated with isoflurane and/or propofol. Here we show for the first time that propofol can attenuate isoflurane-induced caspase-3 activation in cultured cells and in the brain tissues of neonatal mice. Furthermore, propofol-mediated caspase inhibition occurred when there were elevated levels of Aβ. Finally, isoflurane alone induces Aβ42, but not Aβ40, oligomerization, and propofol can inhibit the isoflurane-mediated oligomerization of Aβ42. These data suggest that propofol may mitigate the caspase-3 activation by attenuating the isoflurane-induced Aβ42 oligomerization. Our findings provide novel insights into the possible mechanisms of isoflurane-induced neurotoxicity that may aid in the development of strategies to minimize potential adverse effects associated with the administration of anesthetics to patients.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAnesthetics, InhalationAnesthetics, IntravenousAnimalsApoptosisBlotting, WesternBrainCaspase 3Enzyme ActivationGliomaHumansIsofluraneMiceMice, Inbred C57BLAmyloid beta-Peptidesamyloid beta-protein (1-40)amyloid beta-protein (1-42)Amyloid beta-Protein PrecursorAnesthetics, InhalationAnesthetics, IntravenousAPP protein, humanCaspase 3IsofluranePeptide FragmentsPropofol

Identifiers

PMID22069482
PMCPMC3206055
OpenAlexW2083961441

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.