Evidence map›Paper›PMID 9405649›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1997

Asian genotypes of JC virus in Native Americans and in a Pacific Island population: markers of viral evolution and human migration.

H T Agostini, R Yanagihara, V Davis, C F Ryschkewitsch, G L Stoner

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing 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

49 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. JCV seroconversion rate during the SARS COVID-19 pandemic.Multiple sclerosis and related disorders · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Observational
  11. Weaving the Strands of Life (Human biology · 2020
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Clonal immortalized human glial cell lines support varying levels of JC virus infection due to differences in cellular gene expression.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2013
    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

5 authors.

H T AgostiniNeurotoxicology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA.
R Yanagihara
V Davis
C F Ryschkewitsch
G L Stoner

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The human polyomavirus JC (JCV) causes the central nervous system demyelinating disease progressive multifocal leukoencephalopathy. Previously, we showed that 40% of Caucasians in the United States excrete JCV in the urine as detected by PCR. We have now studied 68 Navaho from New Mexico, 25 Flathead from Montana, and 29 Chamorro from Guam. By using PCR amplification of a fragment of the VP1 gene, JCV DNA was detected in the urine of 45 (66%) Navaho, 14 (56%) Flathead, and 20 (69%) Chamorro. Genotyping of viral DNAs in these cohorts by cycle sequencing showed predominantly type 2 (Asian), rather than type 1 (European). Type 1 is the major type in the United States and Hungary. Type 2 can be further subdivided into 2A, 2B, and 2C. Type 2A is found in China and Japan. Type 2B is a subtype related to the East Asian type, and is now found in Europe and the United States. The large majority (56-89%) of strains excreted by Native Americans and Pacific Islanders were the type 2A subtype, consistent with the origin of these strains in Asia. These findings indicate that JCV infection of Native Americans predates contact with Europeans, and likely predates migration of Amerind ancestors across the Bering land bridge around 12,000-30,000 years ago. If JCV had already differentiated into stable modern genotypes and subtypes prior to first settlement, the origin of JCV in humans may date from 50,000 to 100,000 years ago or more. We conclude that JCV may have coevolved with the human species, and that it provides a convenient marker for human migrations in both prehistoric and modern times.

Indexed as

Evolution, MolecularGenetics, PopulationGenome, ViralBiomarkersGeographyHumansIndians, North AmericanJC VirusBiomarkers

Identifiers

PMID9405649
PMCPMC25048

What OpenQuestion holds

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Registered trials

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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.