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Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic
Widespread dietary exposure of the population of Britain to bovine spongiform encephalopathy (BSE) prions in the 1980s and 1990s led to the emergence of variant Creutzfeldt-Jakob Disease (vCJD) in humans. Two previous appendectomy sample surveys (Appendix-1 and -2) estimated the prevalence of abnorm...
Autores principales: | , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244468/ https://www.ncbi.nlm.nih.gov/pubmed/32232565 http://dx.doi.org/10.1007/s00401-020-02153-7 |
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author | Gill, O. Noel Spencer, Yvonne Richard-Loendt, Angela Kelly, Carole Brown, David Sinka, Katy Andrews, Nick Dabaghian, Reza Simmons, Marion Edwards, Philip Bellerby, Peter Everest, David J. McCall, Mark McCardle, Linda M. Linehan, Jacqueline Mead, Simon Hilton, David A. Ironside, James W. Brandner, Sebastian |
author_facet | Gill, O. Noel Spencer, Yvonne Richard-Loendt, Angela Kelly, Carole Brown, David Sinka, Katy Andrews, Nick Dabaghian, Reza Simmons, Marion Edwards, Philip Bellerby, Peter Everest, David J. McCall, Mark McCardle, Linda M. Linehan, Jacqueline Mead, Simon Hilton, David A. Ironside, James W. Brandner, Sebastian |
author_sort | Gill, O. Noel |
collection | PubMed |
description | Widespread dietary exposure of the population of Britain to bovine spongiform encephalopathy (BSE) prions in the 1980s and 1990s led to the emergence of variant Creutzfeldt-Jakob Disease (vCJD) in humans. Two previous appendectomy sample surveys (Appendix-1 and -2) estimated the prevalence of abnormal prion protein (PrP) in the British population exposed to BSE to be 237 per million and 493 per million, respectively. The Appendix-3 survey was recommended to measure the prevalence of abnormal PrP in population groups thought to have been unexposed to BSE. Immunohistochemistry for abnormal PrP was performed on 29,516 samples from appendices removed between 1962 and 1979 from persons born between 1891 through 1965, and from those born after 1996 that had been operated on from 2000 through 2014. Seven appendices were positive for abnormal PrP, of which two were from the pre-BSE-exposure era and five from the post BSE-exposure period. None of the seven positive samples were from appendices removed before 1977, or in patients born after 2000 and none came from individuals diagnosed with vCJD. There was no statistical difference in the prevalence of abnormal PrP across birth and exposure cohorts. Two interpretations are possible. Either there is a low background prevalence of abnormal PrP in human lymphoid tissues that may not progress to vCJD. Alternatively, all positive specimens are attributable to BSE exposure, a finding that would necessitate human exposure having begun in the late 1970s and continuing through the late 1990s. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00401-020-02153-7) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-7244468 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-72444682020-06-03 Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic Gill, O. Noel Spencer, Yvonne Richard-Loendt, Angela Kelly, Carole Brown, David Sinka, Katy Andrews, Nick Dabaghian, Reza Simmons, Marion Edwards, Philip Bellerby, Peter Everest, David J. McCall, Mark McCardle, Linda M. Linehan, Jacqueline Mead, Simon Hilton, David A. Ironside, James W. Brandner, Sebastian Acta Neuropathol Original Paper Widespread dietary exposure of the population of Britain to bovine spongiform encephalopathy (BSE) prions in the 1980s and 1990s led to the emergence of variant Creutzfeldt-Jakob Disease (vCJD) in humans. Two previous appendectomy sample surveys (Appendix-1 and -2) estimated the prevalence of abnormal prion protein (PrP) in the British population exposed to BSE to be 237 per million and 493 per million, respectively. The Appendix-3 survey was recommended to measure the prevalence of abnormal PrP in population groups thought to have been unexposed to BSE. Immunohistochemistry for abnormal PrP was performed on 29,516 samples from appendices removed between 1962 and 1979 from persons born between 1891 through 1965, and from those born after 1996 that had been operated on from 2000 through 2014. Seven appendices were positive for abnormal PrP, of which two were from the pre-BSE-exposure era and five from the post BSE-exposure period. None of the seven positive samples were from appendices removed before 1977, or in patients born after 2000 and none came from individuals diagnosed with vCJD. There was no statistical difference in the prevalence of abnormal PrP across birth and exposure cohorts. Two interpretations are possible. Either there is a low background prevalence of abnormal PrP in human lymphoid tissues that may not progress to vCJD. Alternatively, all positive specimens are attributable to BSE exposure, a finding that would necessitate human exposure having begun in the late 1970s and continuing through the late 1990s. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00401-020-02153-7) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2020-03-30 2020 /pmc/articles/PMC7244468/ /pubmed/32232565 http://dx.doi.org/10.1007/s00401-020-02153-7 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Original Paper Gill, O. Noel Spencer, Yvonne Richard-Loendt, Angela Kelly, Carole Brown, David Sinka, Katy Andrews, Nick Dabaghian, Reza Simmons, Marion Edwards, Philip Bellerby, Peter Everest, David J. McCall, Mark McCardle, Linda M. Linehan, Jacqueline Mead, Simon Hilton, David A. Ironside, James W. Brandner, Sebastian Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic |
title | Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic |
title_full | Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic |
title_fullStr | Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic |
title_full_unstemmed | Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic |
title_short | Prevalence in Britain of abnormal prion protein in human appendices before and after exposure to the cattle BSE epizootic |
title_sort | prevalence in britain of abnormal prion protein in human appendices before and after exposure to the cattle bse epizootic |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7244468/ https://www.ncbi.nlm.nih.gov/pubmed/32232565 http://dx.doi.org/10.1007/s00401-020-02153-7 |
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