Evidence map›Paper›PMID 34898024›Full record

ArticleBrain and behavior2022

Pyruvate kinase M2 (PKM2) improve symptoms of post-ischemic stroke depression by activating VEGF to mediate the MAPK/ERK pathway.

Yun Feng, Xuebin Li, Jie Wang, Xiaohua Huang, Lanqing Meng, Jianmin Huang

Abstract read
In one paragraph

Article in Brain and behavior, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

17 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Metabolic Reprogramming of Microglia in Neuroinflammation and Depression.International journal of molecular sciences · 2026
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Investigating the Pharmacological Mechanisms of Total Flavonoids fromInternational journal of molecular sciences · 2024
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Pharmaceuticals (Basel, Switzerland) · 2022
    Article
  17. 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.

Yun FengDepartment of Neurology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise City, Guangxi Province, China.
Xuebin LiDepartment of Neurology, Youjiang Medical College for Nationalities, Baise City, Guangxi Province, China.ORCID 0000-0002-2207-3484
Jie WangDepartment of Nephrology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise City, Guangxi Province, China.
Xiaohua HuangDepartment of Neurology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise City, Guangxi Province, China.
Lanqing MengDepartment of Neurology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise City, Guangxi Province, China.
Jianmin HuangDepartment of Neurology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise City, Guangxi Province, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate and identify the effects and explore the mechanisms of pyruvate kinase M2 (PKM2) on stroke-induced post stroke depression (PSD).

methodsRats were separated into six different groups, including sham + saline, Stroke + saline, PSD + saline, PSD + recombinant pyruvate kinase M2 (rPKM2) (112 ng/kg), PSD + rPKM2 (224 ng/kg), and PSD + rPKM2 (224 ng/kg) + bevacizumab. Then, the body weight, sucrose preference rate, immobility time, horizontal movement, and vertical movement were determined to evaluate the effect of PKM2 on improving the depressive behavior of PSD rats. Subsequently, the proliferation of oligodendrocytes in subventricular zone (SVZ) of rats in each group was examined by western blot and immunofluorescent staining. Furthermore, the mRNA and protein expression levels of TNF-α, IL-6, and IL-1β were also detected by qPCR and ELISA to verify the anti-inflammatory effects of PKM2 on PSD rats. In addition, the protein expression levels of MDA, LDH, and NO were tested to reveal that PKM2 can reduce oxidative stress in PSD rats. The western blot and IHC assays were employed to examine the protein expression levels of VEGF, PKM2, and ERK in PSD rats.

resultsIn this study, the results showed that PKM2 can improve the depressive behavior and proliferation of oligodendrocytes in PSD rats. In addition, PKM2 has anti-inflammatory and anti-oxidative stress effects on PSD rats. Meanwhile, PKM2 activated the expression level of VEGF/MAPK/ERK pathway.

conclusionPKM2 improves symptoms of post-ischemic stroke depression by activating VEGF-mediated MAPK/ERK pathway.

Indexed as

Ischemic StrokePyruvate KinaseAnimalsDepressionMAP Kinase Signaling SystemRatsRats, Sprague-DawleyRecombinant ProteinsVascular Endothelial Growth Factor APyruvate KinaseRecombinant ProteinsVascular Endothelial Growth Factor AERKMAPKPKM2PSDVEGF

Identifiers

PMID34898024
PMCPMC8785619

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.