Evidence map›Paper›PMID 23353794›Full record

ArticleAnesthesiology2013

Surgery results in exaggerated and persistent cognitive decline in a rat model of the Metabolic Syndrome.

Xiaomei Feng, Vincent Degos, Lauren G Koch, Steven L Britton, Yinggang Zhu, Susana Vacas, Niccolò Terrando, Jeffrey Nelson, Xiao Su, Mervyn Maze

Open access · bronzeAbstract read
In one paragraph

Article in Anesthesiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

50 citing papers in PubMed, 80 citations in OpenAlex.

  1. Article
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  11. Review
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  13. Electroacupuncture Ameliorates Tibial Fracture-Induced Cognitive Dysfunction by ElevatingEvidence-based complementary and alternative medicine : eCAM · 2022
    Article
  14. Reduction of neuroinflammation alleviated mouse post bone fracture and stroke memory dysfunction.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Article
  15. Article
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  18. Observational
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  20. Fracture shortly before stroke in mice leads to hippocampus inflammation and long-lasting memory dysfunction.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    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

10 authors at 1 institution in 1 country.

Xiaomei FengDepartment of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, CA, USA.
Vincent Degos
Lauren G Koch
Steven L Britton
Yinggang Zhu
Susana Vacas
Niccolò Terrando
Jeffrey Nelson
Xiao Su
Mervyn Maze
University of California, San Francisco · US

Funding

RESOURCE FOR RAT GENETIC MODELS OF AEROBIC CAPACITYR24RR017718 · NCRR · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI BRITTON, STEVEN LOYAL · 2003 to 2011
$4.0M
Inflammation resolving mechanism dysregulation in postoperative cognitive declineR01GM104194 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MAZE, MERVYN · 2013 to 2016
$1.2M
NCRR NIH HHS R24 RR017718NIGMS NIH HHS R01 GM104194PHS HHS R0D012098A
6 · The paper itself

Abstract

backgroundPostoperative cognitive decline can be reproduced in animal models. In a well-validated rat model of the Metabolic Syndrome, we sought to investigate whether surgery induced a more severe and persistent form of cognitive decline similar to that noted in preliminary clinical studies.

methodsIn rats that had been selectively bred for low and high exercise endurance, the low capacity runners (LCR) exhibited features of Metabolic Syndrome (obesity, dyslipidemia, insulin resistance, and hypertension). Tibial fracture surgery was performed under isoflurane anesthesia in LCR and high capacity runner (HCR) rats and cognitive function was assessed postoperatively in a trace-fear conditioning paradigm and Morris Water Maze; non-operated rats were exposed to anesthesia and analgesia (sham). Group sizes were n = 6.

resultsOn postoperative D7, LCR rats had shorter freezing times than postoperative HCR rats. Five months postoperatively, LCR rats had a flatter learning trajectory and took longer to locate the submerged platform than postoperative HCR rats; dwell-time in the target quadrant in a probe trial was shorter in the postoperative LCR compared to HCR rats. LCR and HCR sham rats did not differ in any test.

conclusionPostoperatively, LCR rats diverged from HCR rats exhibiting a greater decline in memory, acutely, with persistent learning and memory decline, remotely; this could not be attributed to changes in locomotor or swimming performance. This Metabolic Syndrome animal model of surgery-induced cognitive decline corroborates, with high fidelity, preliminary findings of postoperative cognitive dysfunction in Metabolic Syndrome patients.

Indexed as

Analysis of VarianceAnesthesia, GeneralAnimalsCognition DisordersConditioning, PsychologicalCuesFearImmunityInflammationMaleMaze LearningMemory, Long-TermMetabolic SyndromeMotor ActivityPostoperative ComplicationsRats

Identifiers

PMID23353794
PMCPMC5530762
OpenAlexW2070818523

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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.