Potential viral pathogenic mechanism for new
variant inflammatory bowel disease by V Uhlmann, C M Martin, O Sheils, L
Pilkington, I Silva, A Killalea, S B Murch, A J Wakefield, JJ O'Leary and an
accompanying editorial by Alan Morris and David Aldulaimi will officially appear
in the April issue of Molecular Pathology.
They have been pre-published in full on the web
because part of the findings were broadcast in advance of publication during an
edition of Panorama devoted to MMR on Sunday February 3 2002.
Acknowledgements: this work was supported by
the John Ellerman Foundation, Welton Foundation, Medical Interventions for
Autism, and Visceral.
PRESS STATEMENT
Link found between measles virus and gut
abnormalities in children with developmental disorder
Measles virus may link a new form of inflammatory
bowel disease and developmental disorder, suggests a study in Molecular
Pathology, to be published in the spring. The authors conclude that the virus
may act as an immunological trigger. It was found in the guts of 75 children out
of 91 with the variant form of bowel disease, but in only five out of 70 healthy
children. More boys than girls were affected.
The study does not look at whether the children
were vaccinated with the triple mumps measles and rubella (MMR) vaccine. And an
accompanying editorial advises against jumping to any hasty conclusions about
MMR causing either the bowel disease or the developmental disorder, or its being
responsible for all cases of autism and/or inflammatory bowel disease.
The editorial concludes that there is evidence
that developmental disorders are associated with some disturbance in the
interaction between the brain and the gut, and that the study findings warrant
attention. But the authors say that several critical questions need to be
answered before any potential link with MMR can be proved, including whether the
measles virus
was the same strain as that used in the vaccine.
In a statement issued today, Professor John
O'Leary, molecular pathologist at Coombe Women's Hospital, Dublin, and lead
author of the study, comments:
"I stand by the findings of our research, which
raises many questions about whether measles virus has a role in bowel
inflammation in developmental disorder. But the research did not set out to
investigate the role of MMR in the development of either bowel disease or
developmental disorder, and no conclusions about such a role could, or should
be, drawn from our findings."
The editors of Molecular Pathology,
Professor John Crocker and Dr David Burnett, add: "This paper was submitted by a
scientist of international reputation, and accepted for publication after peer
review. It was recognised by the referees and the editors as a potentially
important observation which raised many questions about the possible role of
measles in the aetiology of a syndrome in children. The paper did not set out to
investigate the role of MMR in developmental disorders or bowel disease, and no
role for MMR is suggested in it.
But we did accept that some readers might jump to
the conclusion that this paper does in some way link MMR to behavioural
disorders. We therefore commissioned a commentary by a member of our editorial
board. That commentary reinforces our view that this research is an important
piece of work that draws conclusions entirely consistent with the data, but that
any link with MMR is not justified, and was not intended by the study authors."
Ends
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