Evidence map›Paper›PMID 11054380›Full record

ArticleGastroenterology2000

JC virus DNA sequences are frequently present in the human upper and lower gastrointestinal tract.

L Ricciardiello, L Laghi, P Ramamirtham, C L Chang, D K Chang, A E Randolph, C R Boland

Abstract read
PubMed Publisher
In one paragraph

Article in Gastroenterology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 2 pooled it
3.0field-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

72 citing papers in PubMed, 2 syntheses or guidelines pooled it, 157 citations in OpenAlex.

  1. Pooled it
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  6. Article
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  11. Article
  12. High anti-JCPyV serum titers coincide with high CSF cell counts in RRMS patients.Multiple sclerosis (Houndmills, Basingstoke, England) · 2021
    Article
  13. Article
  14. The Role of the JC Virus in Central Nervous System Tumorigenesis.International journal of molecular sciences · 2020
    Review
  15. Article
  16. Article
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  18. Article
  19. Article
  20. Review

12 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

L RicciardielloDepartment of Medicine and Cancer Center, University of California San Diego, and San Diego Veteran Affairs Medical Center, La Jolla, California 92093-0688, USA.
L Laghi
P Ramamirtham
C L Chang
D K Chang
A E Randolph
C R Boland
University of California, San Diego · US

Funding

The Biology and Diagnosis of HNPCCR01CA072851 · NCI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI GOEL, AJAY · 1996 to 2019
$6.6M
NCI NIH HHS CA72851
6 · The paper itself

Abstract

BACKGROUND &

aimsJC virus (JCV), a human polyomavirus, has been found in a limited number of normal human tissues and cancers. The oncogenic potential of this virus is mediated by a transforming protein, the T antigen (TAg). We have previously demonstrated the presence of JCV-TAg in colorectal cancers, in adjacent normal colonic mucosa from these patients, and in the human colon cancer cell line SW480. The mode of transmission of this virus is unclear, and we hypothesized that the gastrointestinal (GI) tract may be a reservoir for the virus.

methodsDNA was extracted from 129 normal GI tissue samples collected from 33 patients. Topoisomerase I-assisted polymerase chain reaction (PCR) was used to detect the virus using exact and degenerate primers. Nested PCR and Southern blot analysis confirmed the identity of the PCR products. Single-stranded conformation polymorphism (SSCP) analysis and sequencing were used to evaluate the presence of viral quasispecies.

resultsJCV sequences were found in 75.8% of patients (70.6% of upper GI and 81.2% of colonic samples); no significant differences in rates of infection were found by site. The use of degenerate primers combined with topoisomerase I treatment led to viral detection in 58.9% of samples, compared with 27.9% of samples using exact primers and topoisomerase I (P < 0.01). SSCP and sequencing analysis confirmed the amplification of viral quasispecies and the authenticity of TAg sequences.

conclusionsThe results show that JCV DNA sequences are highly prevalent in the human upper and lower gastrointestinal tract of immunocompetent individuals.

Indexed as

Amino Acid SequenceAntigens, Viral, TumorBase SequenceDigestive SystemDNA Topoisomerases, Type IDNA, ViralHumansJC VirusMolecular Sequence DataReference ValuesAntigens, Viral, TumorDNA Topoisomerases, Type IDNA, Viral

Identifiers

PMID11054380
OpenAlexW2068976565

What OpenQuestion holds

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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.