Evidence map›Paper›PMID 24129059›Full record

ArticleBMJ (Clinical research ed.)2013

Prevalent abnormal prion protein in human appendixes after bovine spongiform encephalopathy epizootic: large scale survey.

O Noel Gill, Yvonne Spencer, Angela Richard-Loendt, Carole Kelly, Reza Dabaghian, Lynnette Boyes, Jacqueline Linehan, Marion Simmons, Paul Webb, Peter Bellerby and 7 more

Open access · hybridAbstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 1 pooled it
18.4field-weighted citation impact, top 1% 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

117 citing papers in PubMed, 1 synthesis or guideline pooled it, 300 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  7. Article
  8. Review
  9. Article
  10. BSE risk posed by ruminant collagen and gelatine derived from bones.EFSA journal. European Food Safety Authority · 2024
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Non-human primates in prion diseases.Cell and tissue research · 2023
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 6 institutions in 1 country.

O Noel GillHIV and STI Department, and CJD Section, National Centre for Infectious Disease Surveillance and Control, Public Health England, London, UK.
Yvonne Spencer
Angela Richard-Loendt
Carole Kelly
Reza Dabaghian
Lynnette Boyes
Jacqueline Linehan
Marion Simmons
Paul Webb
Peter Bellerby
Nick Andrews
David A Hilton
James W Ironside
Jon Beck
Mark Poulter
Simon Mead
Sebastian Brandner
National Hospital for Neurology and Neurosurgery · GBAnimal and Plant Health Agency · GBPublic Health England · GBUniversity College London · GBDerriford Hospital · GBUniversity of Edinburgh · GB

Funding

Medical Research Council G0600953Medical Research Council G0900580
6 · The paper itself

Abstract

objectivesTo carry out a further survey of archived appendix samples to understand better the differences between existing estimates of the prevalence of subclinical infection with prions after the bovine spongiform encephalopathy epizootic and to see whether a broader birth cohort was affected, and to understand better the implications for the management of blood and blood products and for the handling of surgical instruments.

designIrreversibly unlinked and anonymised large scale survey of archived appendix samples.

settingArchived appendix samples from the pathology departments of 41 UK hospitals participating in the earlier survey, and additional hospitals in regions with lower levels of participation in that survey. SAMPLE: 32,441 archived appendix samples fixed in formalin and embedded in paraffin and tested for the presence of abnormal prion protein (PrP).

resultsOf the 32,441 appendix samples 16 were positive for abnormal PrP, indicating an overall prevalence of 493 per million population (95% confidence interval 282 to 801 per million). The prevalence in those born in 1941-60 (733 per million, 269 to 1596 per million) did not differ significantly from those born between 1961 and 1985 (412 per million, 198 to 758 per million) and was similar in both sexes and across the three broad geographical areas sampled. Genetic testing of the positive specimens for the genotype at PRNP codon 129 revealed a high proportion that were valine homozygous compared with the frequency in the normal population, and in stark contrast with confirmed clinical cases of vCJD, all of which were methionine homozygous at PRNP codon 129.

conclusionsThis study corroborates previous studies and suggests a high prevalence of infection with abnormal PrP, indicating vCJD carrier status in the population compared with the 177 vCJD cases to date. These findings have important implications for the management of blood and blood products and for the handling of surgical instruments.

Indexed as

AnimalsAppendixCarrier StateCattleCodonCohort StudiesCreutzfeldt-Jakob SyndromeEncephalopathy, Bovine SpongiformFemaleGenetic TestingHomozygoteHumansMalePrevalencePrion ProteinsPrionsCodonPrion ProteinsPrionsPRNP protein, human

Identifiers

PMID24129059
PMCPMC3805509
OpenAlexW2137782260

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.