Evidence map›Paper›PMID 20001674›Full record

ArticleJournal of neurotrauma2010

Neuronal and axonal degeneration in experimental spinal cord injury: in vivo proton magnetic resonance spectroscopy and histology.

Junchao Qian, Juan J Herrera, Ponnada A Narayana

Open access · greenAbstract read
In one paragraph

Article in Journal of neurotrauma, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.4field-weighted citation impact, top 13% 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

21 citing papers in PubMed, 41 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Journal of neurotrauma · 2021
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  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

3 authors at 1 institution in 1 country.

Junchao QianDepartment of Diagnostic and Interventional Imaging, The University of Texas Medical School at Houston, Houston, Texas 77030, USA.
Juan J Herrera
Ponnada A Narayana
Texas Medical Center · US

Funding

MAGNETIC RESONANCE OF SPINAL CORD INJURYR01NS030821 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI NARAYANA, PONNADA A · 1992 to 2006
$2.9M
MRI of Angiogenesis in Spinal Cord InjuryR01NS045624 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI NARAYANA, PONNADA A · 2005 to 2009
$2.8M
HIGH FIELD MR SCANNER FOR IN VIVO ANIMAL STUDIESS10RR014804 · NCRR · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI NARAYANA, PONNADA A · 2000 to 2000
$500k
NINDS NIH HHS NS045624NINDS NIH HHS R01 NS030821
6 · The paper itself

Abstract

Longitudinal in vivo proton magnetic resonance spectroscopy (1H-MRS) and immunohistochemistry were performed to investigate the tissue degeneration in traumatically injured rat spinal cord rostral and caudal to the lesion epicenter. On 1H-MRS significant decreases in N-acetyl aspartate (NAA) and total creatine (Cr) levels in the rostral, epicenter, and caudal segments were observed by 14 days, and levels remained depressed up to 56 days post-injury (PI). In contrast, the total choline (Cho) levels increased significantly in all three segments by 14 days PI, but recovered in the epicenter and caudal, but not the rostral region, at 56 days PI. Immunohistochemistry demonstrated neuronal cell death in the gray matter, and reactive astrocytes and axonal degeneration in the dorsal, lateral, and ventral white-matter columns. These results suggest delayed tissue degeneration in regions both rostrally and caudally from the epicenter in the injured spinal cord tissue. A rostral-caudal asymmetry in tissue recovery was seen both on MRI-observed hyperintense lesion volume and the Cho, but not NAA and Cr, levels at 56 days PI. These studies suggest that dynamic metabolic changes take place in regions away from the epicenter in injured spinal cord.

Indexed as

AnimalsAspartic AcidCholineCreatineDisease Models, AnimalDisease ProgressionGliosisImmunohistochemistryMagnetic Resonance SpectroscopyNerve DegenerationRatsRats, Sprague-DawleySpinal CordSpinal Cord InjuriesTime FactorsWallerian DegenerationAspartic AcidCholineCreatineN-acetylaspartate

Identifiers

PMID20001674
PMCPMC2867589
OpenAlexW1966710361

What OpenQuestion holds

Textmetadata
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.