Abstract
To distinguish sinusitis from uncomplicated "colds," we examined lactoferrin and eosinophilic cationic protein (ECP) in nasal secretions. Lactoferrin titers were >/=1:400 in 4% of persons with uncomplicated colds and controls but in 79% of persons with sinusitis or purulent sputa. ECP levels were >200 ng/ml in 61% of persons with colds and >3,000 ng/ml in 62% of persons with sinusitis. Nasal lactoferrin helps distinguish sinusitis from colds.
MeSH Terms
Bacterial Infections/diagnosis,metabolism
Blood Proteins/analysis
Common Cold/diagnosis,metabolism,virology
Community-Acquired Infections/diagnosis,metabolism
Eosinophil Granule Proteins
Humans
Lactoferrin/analysis
Mucus/chemistry
Nasal Mucosa/metabolism
Rhinovirus
Ribonucleases
Sinusitis/diagnosis,metabolism
Chemicals
Blood Proteins
Eosinophil Granule Proteins
Ribonucleases
Lactoferrin
Authors & Affiliations
8 authors, click to expand affiliations / ORCID
Niehaus M D
Divisions of Geographic and International Medicine, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia 22908, USA.
Gwaltney J M
Hendley J O
Newman M J
Heymann P W
Rakes G P
Platts-Mills T A
Guerrant R L
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