Evidence map›Paper›PMID 31665910›Full record

ArticleCell transplantation2019

Intravenous transplantation of olfactory bulb ensheathing cells for a spinal cord hemisection injury rat model.

Lijian Zhang, Xiaoqing Zhuang, Yao Chen, Hechun Xia

Open access · goldAbstract read
In one paragraph

Article in Cell transplantation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Olfactory ensheathing cells and neuropathic pain.Frontiers in cell and developmental biology · 2023
    Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Longitudinal [NeuroImage. Clinical · 2021
    Article
  20. Review
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

4 authors at 2 institutions in 2 countries.

Lijian ZhangDepartment of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.
Xiaoqing ZhuangDepartment of Nuclear Medicine, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.ORCID 0000-0001-8652-8540
Yao ChenDepartment of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.
Hechun XiaDepartment of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China.
Ningxia Medical University · CNYahoo (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cellular transplantation strategies utilizing intraspinal or intrathecal olfactory ensheathing cells (OECs) have been reported as beneficial for spinal cord injury (SCI). However, there are many disadvantages of these methods, including additional trauma to the spinal cord parenchyma and technical challenges. Therefore, we investigated the feasibility and potential benefits of intravenous transplantation of OECs in a rat hemisection SCI model. OECs derived from olfactory bulb tissue were labeled with quantum dots (QDs), and their biodistribution after intravenous transplantation was tracked using a fluorescence imaging system. Accumulation of the transplanted OECs was observed in the injured spinal cord within 10 min, peaked at seven days after cell transplantation, and decreased gradually thereafter. This time window corresponded to the blood-spinal cord barrier (BSCB) opening time, which was quantitated with the Evans blue leakage assay. Using immunohistochemistry, we examined neuronal growth (GAP-43), remyelination (MBP), and microglia (Iba-1) reactions at the lesion site. Motor function recovery was also measured using a classic open field test (Basso, Beattie and Bresnahan score). Compared with the group injected only with QDs, the rats that received OEC transplantation exhibited a prominent reduction in inflammatory responses, increased neurogenesis and remyelination, and significant improvement in motor function. We suggest that intravenous injection could also be an effective method for delivering OECs and improving functional outcomes after SCI. Moreover, the time course of BSCB disruption provides a clinically relevant therapeutic window for cell-based intervention.

Indexed as

Cell TransplantationOlfactory BulbRecovery of FunctionSpinal CordSpinal Cord InjuriesAnimalsDisease Models, AnimalMaleRatsRats, Sprague-Dawleyblood–spinal cord barrierBSCBintravenous transplantationOECsolfactory ensheathing cellsspinal cord injury

Identifiers

PMID31665910
PMCPMC6923555
OpenAlexW2986049909

What OpenQuestion holds

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LicenceCC BY-NC
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.