Evidence map›Paper›PMID 31566928›Full record

ArticleBrain and behavior2019

Effects of irisin on the dysfunction of blood-brain barrier in rats after focal cerebral ischemia/reperfusion.

Peipei Guo, Zhao Jin, Huisheng Wu, Xinyi Li, Jianjuan Ke, Zongze Zhang, Qiu Zhao

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
5.4field-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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Therapeutic Potential of Irisin in Neurodegenerative Diseases.International journal of molecular sciences · 2025
    Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  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

7 authors at 1 institution in 1 country.

Peipei GuoDepartment of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.ORCID 0000-0002-7736-4932
Zhao JinDepartment of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Huisheng WuDepartment of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Xinyi LiDepartment of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Jianjuan KeDepartment of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Zongze ZhangDepartment of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Qiu ZhaoDepartment of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.
Wuhan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate whether irisin could protect against blood-brain barrier (BBB) dysfunction following focal cerebral ischemia/reperfusion in rats. METHODS AND MATERIALS: Seventy-two adult male Sprague Dawley rats weighing 280-320 g were randomly divided into three groups: sham operation group (S), focal cerebral ischemia/reperfusion group (FC), and irisin group (IR). Focal cerebral ischemia was induced by improved thread occlusion of right middle cerebral artery (MCAO) for 2 hr followed by reperfusion for 24 hr in rats. After 24 hr of reperfusion, the neurological evaluation was performed by the method of Longa's score. The histopathological changes were observed by HE staining. The brain water content was determined by detecting the wet weight and dry weight. The BBB permeability was assessed by fluorescence spectrophotometer and fluorescence microscopy for Evans blue (EB) extravasation. The activity and expression of matrix metalloproteinase-9 (MMP-9) in different groups were detected by immunohistochemical staining, Western blot, and gel gelatin zymography.

resultsAfter MCAO, the neurological deficit scores, the infarct volume, the brain water content, and the EB content were higher in the FC group than those in the S group (p < .05). While after irisin treatment, these indicators mentioned above were lower than those in the IR group (p < .05). Moreover, the protein expression of MMP-9 in the cortex increased significantly after MCAO, while irisin treatment could decrease the protein expression of MMP-9 in the cortex (p < .05).

conclusionOur data suggest that irisin can attenuate brain damage both morphologically and functionally and protect BBB from disruption after focal cerebral ischemia/reperfusion, which is highly associated with the inhibition of the expression and activity of MMP-9 in the brain tissue.

Indexed as

Blood-Brain BarrierFibronectinsAnimalsBrain IschemiaInfarction, Middle Cerebral ArteryMaleProtective AgentsRatsRats, Sprague-DawleyTreatment OutcomeFibronectinsFNDC5 protein, ratProtective Agentsblood-brain barriercerebral ischemia/reperfusionirisinmatrix metalloproteinase-9

Identifiers

PMID31566928
PMCPMC6790318
OpenAlexW2978468248

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.