PMID: 9426101Jan 13, 1998Paper

Cells and mediators from pharyngeal secretions in infants with acute wheezing episodes

The European Respiratory Journal
F P CounilB Arnoux

Abstract

An acute wheezing episode is the most common feature of severe lower respiratory tract infection during infancy. Respiratory syncytial virus (RSV) is the major causative agent. In order to study inflammation during acute wheezing episodes in infants, we wanted to assess the feasibility and contribution of induction of pharyngeal secretions. We therefore compared inflammatory markers in the pharyngeal secretions of 27 infants suffering from acute wheezing episodes with an RSV infection (RSV+) and 18 infants suffering with acute wheezing episodes without RSV infection (RSV-). Pharyngeal secretions were recovered by physiotherapy using isotonic saline. The safety of the procedure was carefully checked. Pharyngeal secretions were homogenized with dithiothreitol. Total cells and eosinophils were counted and levels of eosinophil cationic protein (ECP) and histamine were measured. Induction of pharyngeal secretion was always well tolerated. Eosinophils were present in five RSV+ and seven RSV- patients. ECP levels were not significantly different between the groups. Histamine levels after protein adjustment were significantly increased in RSV+ patients (p<0.01) in comparison to RSV- patients. In this study, we have shown, that pharynge...Continue Reading

Citations

Dec 21, 2007·Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology·Christophe MarguetBertrand Macé
Mar 7, 2007·Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology·Liviana Da DaltEugenio Baraldi
Aug 28, 1999·Respiratory Medicine·P Tarodo de la FuenteP Chanez
Mar 11, 2003·The Journal of Immunology : Official Journal of the American Association of Immunologists·Allison L MillerNicholas W Lukacs

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