Evidence map›Paper›PMID 7760004›Full record

ArticleThe Journal of experimental medicine1995

The substantia nigra is a major target for neurovirulent influenza A virus.

M Takahashi, T Yamada, S Nakajima, K Nakajima, T Yamamoto, H Okada

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 119 citations in OpenAlex.

  1. Pooled it
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  10. Viruses, parkinsonism and Parkinson's disease: the past, present and future.Journal of neural transmission (Vienna, Austria : 1996) · 2022
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  11. Iron, Neuroinflammation and Neurodegeneration.International journal of molecular sciences · 2022
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  13. Inflammatory Animal Models of Parkinson's Disease.Journal of Parkinson's disease · 2022
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  14. Covid-19 Infection and Parkinsonism: Is There a Link?Movement disorders : official journal of the Movement Disorder Society · 2021
    Review
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  16. Review
  17. Infections or Sepsis Preceding Clinically Diagnosed α-Synucleinopathies: A Case-Control Study.Movement disorders : official journal of the Movement Disorder Society · 2020
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  18. Movement Disorders in the World of COVID-19.Movement disorders clinical practice · 2020
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  19. Disruption of cellular proteostasis by H1N1 influenza A virus causes α-synuclein aggregation.Proceedings of the National Academy of Sciences of the United States of America · 2020
    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

6 authors at 1 institution in 1 country.

M TakahashiChoju Medical Institute, Noyori Fukushi-mura Hospital, Toyohashi, Japan.
T Yamada
S Nakajima
K Nakajima
T Yamamoto
H Okada
Fukushimura Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clinical and immunohistochemical studies were done for 3-39 d on mice after intracerebral inoculation with the neurovirulent A/WSN/33 (H1N1; WSN) strain of influenza A virus, the nonneurovirulent A/Aichi/2/68 (H3N2; Aichi) strain, and two reassortant viruses between them. The virus strains with the WSN gene segment coding for neuraminidase induced meningoencephalitis in mice. The mice inoculated with the R96 strain, which has only the neuraminidase gene from the WSN strain, had mild symptoms and weak positive immunostaining to the anti-WSN antibody in meningeal regions. Both the WSN and R404BP strains, which contain the WSN gene segments coding for neuraminidase and matrix protein, were clearly neurovirulent both clinically and pathologically. On day 3 after inoculation with either of these two strains, WSN antigen was detected in meningeal and ependymal areas, neurons of circumventricular regions, the cerebral and cerebellar cortices, the substantia nigra zona compacta, and the ventral tegmental area. On day 7, meningeal reactions and neuronal staining were still seen, and advanced accumulation of the viral antigen was evident in the substantia nigra zona compacta and hippocampus. Double immunostaining demonstrated that the WSN antigen was only seen in neurons and not in microglia or reactive astrocytes. Immunostaining for the lectin maackia amurensis agglutinin, which recognizes the Neu5Ac alpha 2,3 Gal sequence, which serves as a binding site for influenza A virus on target cell membranes, showed that positive staining was localized in the ventral substantia nigra and hippocampus. These results suggest that neurovirulent influenza A viruses could be one of the causative agents for postencephalitic parkinsonism.

Indexed as

AnimalsBody WeightGenes, ViralImmunohistochemistryInfluenza A virusMaleMiceMice, Inbred C3HNeuraminidaseOrthomyxoviridae InfectionsSubstantia NigraNeuraminidase

Identifiers

PMID7760004
PMCPMC2192055
OpenAlexW2045837603

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.