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Viral infections in wheezing disorders.

Viral infections in wheezing disorders.
Author Information (click to view)

Le Souëf P,


Le Souëf P, (click to view)

Le Souëf P,

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European respiratory review : an official journal of the European Respiratory Society 2018 04 0527(147) pii 170133
Abstract

Over the past year, studies into virus-induced wheeze in children have shifted towards investigations that examine the mechanisms by which respiratory viruses cause wheeze and an increase in studies examining the effects of novel interventions to reduce wheezing exacerbations. Studies on rhinovirus species (RV)-C infection have found that this is associated with a decrease in expression of CDHR3, the cellular receptor specific for this virus, and a decrease in interferon-β expression, both of which are likely to favour RV-C infection. Recent clinical trials in children have found a decrease in wheezing exacerbations with both anti-respiratory syncytial virus antibody and anti-immunoglobulin E antibody therapy, and a clinical trial of prednisolone in children with their first RV-induced wheeze showed that only those with an RV viral count >7000 copies·mLresponded. Further studies on the effects of bacterial lysates on immune system function continue to support the potential of this approach to reduce virus-induced wheezing exacerbations in children. These studies and many previous investigations into immunomodulation using bacterial lysates have led to the funding and commencement of a large study in which long-term administration of a bacterial lysate in young children will be assessed for its ability to prevent asthma.

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