Evidence map›Paper›PMID 30451395›Full record

ArticleBrain and behavior2018

Left-right asymmetry influenced the infarct volume and neurological dysfunction following focal middle cerebral artery occlusion in rats.

Zhiyong Zhai, Juan Feng

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

10 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. 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

2 authors at 1 institution in 1 country.

Zhiyong ZhaiDepartment of Neurology, Shengjing Hospital of China Medical University, Shenyang, China.ORCID 0000-0001-6765-0495
Juan FengDepartment of Neurology, Shengjing Hospital of China Medical University, Shenyang, China.ORCID 0000-0002-1815-7036
China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the differential effects of left versus right cerebral hemisphere on the infarct volume and behavioral function following focal cerebral ischemia in rats. METHODS AND MATERIALS: Middle cerebral artery occlusion (MCAO) was induced in the right-handed rats by filament insertion for 1.5 hr, and then reperfusion was established according to Zea-Longa method. A total of 36 male Sprague Dawley rats were randomly divided into a left MCAO group or a right MCAO group. The modified neurological severity scores (mNSS), tapered beam-walking test, and Morris water maze experiment were all carried out to evaluate the sensorimotor and cognitive outcomes at the 1d, 3d, and 7d after MCAO, respectively. Infarct volume of the brains was measured by triphenyltetrazolium chloride (TTC) staining.

resultsThe sensorimotor function was more worse in the left MCAO group than that in the right MCAO group at the 1d, 3d, and 7d after MCAO (p < 0.05). While the cognitive function was much better in the left MCAO group than that in the right MCAO group at the 1d and 3d after MCAO (p < 0.05). But no significant difference was achieved in cognitive function between the two groups at 7d after MCAO (p > 0.05). There was no significant difference in total infarct volume between the two groups at the 1d, 3d, and 7d after MCAO, respectively (p > 0.05).

conclusionThe infarct volume is not affected significantly by the left or right MCAO model in the early days. The lesions in the left hemisphere produce more severe sensorimotor impairments, while more severe cognitive impairments are produced by the right hemispherical lesions. These findings suggest that it is structural and functional asymmetry between the two hemispheres other than infarct volume that affects the outcomes of rat MCAO.

Indexed as

AnimalsBrain IschemiaCerebrumColoring AgentsDisease Models, AnimalInfarction, Middle Cerebral ArteryMaleMaze LearningMiddle Cerebral ArteryNervous System DiseasesRandom AllocationRats, Sprague-DawleyReperfusionReperfusion InjuryTetrazolium SaltsWalkingColoring AgentsTetrazolium Saltstriphenyltetrazoliumasymmetrycerebral ischemia-reperfusionmiddle cerebral artery occlusionrats

Identifiers

PMID30451395
PMCPMC6305934
OpenAlexW2901264176

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.