Evidence map›Paper›PMID 19224990›Full record

ArticleJournal of virology2009

Persistent West Nile virus associated with a neurological sequela in hamsters identified by motor unit number estimation.

Venkatraman Siddharthan, Hong Wang, Neil E Motter, Jeffery O Hall, Robert D Skinner, Ramona T Skirpstunas, John D Morrey

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
6.9field-weighted citation impact, top 3% 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

31 citing papers in PubMed, 46 citations in OpenAlex.

  1. Flaviviruses-Induced Neurological Sequelae.Pathogens (Basel, Switzerland) · 2024
    Review
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Small-Animal Models of Zika Virus.The Journal of infectious diseases · 2017
    Review
  8. Article
  9. Article
  10. Osteopontin ImpactsMediators of inflammation · 2017
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  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 2 institutions in 1 country.

Venkatraman SiddharthanDepartment of Animal, Dairy, and Veterinary Sciences, Institute for Antiviral Research, Utah State University, Logan, Utah 84322, USA.
Hong Wang
Neil E Motter
Jeffery O Hall
Robert D Skinner
Ramona T Skirpstunas
John D Morrey
Utah State University · USUniversity of Arkansas for Medical Sciences · US

Funding

Vascular stabilization as a broad theraprutic platform for biodefenseU54AI065357 · NIAID · COLORADO STATE UNIVERSITY-FORT COLLINS · PI SCHWEIZER, HERBERT P. · 2005 to 2013
$77.5M
PHYSIOLOGICAL DISTURBANCES ASSOCIATED WITH NEONATAL INTRAVENTRICULAR HEMORRHAGEP20RR020146 · NCRR · UNIV OF ARKANSAS FOR MED SCIS · PI GARCIA-RILL, EDGAR E. · 2004 to 2011
$17.2M
ANIMAL MODELS OF HUMAN VIRAL INFECTIONS FOR EVALUATION OF EXPERIMENTAL-266015435N01AI015435 · NIAID · UTAH STATE UNIVERSITY · 2004 to 2004
–
NCRR NIH HHS P20 RR020146NCRR NIH HHS RR020146NIAID NIH HHS 1 U54 AI-065357-04NIAID NIH HHS N01 AI015435NIAID NIH HHS N01-AI-15435NIAID NIH HHS U54 AI065357
6 · The paper itself

Abstract

To investigate the hypothesis that neurological sequelae are associated with persistent West Nile virus (WNV) and neuropathology, we developed an electrophysiological motor unit number estimation (MUNE) assay to measure the health of motor neurons temporally in hamsters. The MUNE assay was successful in identifying chronic neuropathology in the spinal cords of infected hamsters. MUNE was suppressed at days 9 to 92 in hamsters injected subcutaneously with WNV, thereby establishing that a long-term neurological sequela does occur in the hamster model. MUNE suppression at day 10 correlated with the loss of neuronal function as indicated by reduced choline acetyltransferase staining (R(2) = 0.91). Between days 10 and 26, some alpha-motor neurons had died, but further neuronal death was not detected beyond day 26. MUNE correlated with disease phenotype, because the lowest MUNE values were detected in paralyzed limbs. Persistent WNV RNA and foci of WNV envelope-positive cells were identified in the central nervous systems of all hamsters tested from 28 to 86 days. WNV-positive staining colocalized with the neuropathology, which suggested that persistent WNV or its products contributed to neuropathogenesis. These results established that persistent WNV product or its proteins cause dysfunction, that WNV is associated with chronic neuropathological lesions, and that this neurological sequela is effectively detected by MUNE. Inasmuch as WNV-infected humans can also experience a poliomyelitis-like disease where motor neurons are damaged, MUNE may also be a sensitive clinical or therapeutic marker for those patients.

Indexed as

AnimalsAntigens, ViralCricetinaeElectrophysiological PhenomenaFemaleMotor Neuron DiseaseRNA, ViralViral Envelope ProteinsWest Nile virusAntigens, ViralRNA, ViralViral Envelope Proteins

Identifiers

PMID19224990
PMCPMC2668437
OpenAlexW2105426263

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.