Circadian variation of secretory IgA in nasal secretions from normal subjects

Acta Otolaryngol. Mar-Apr 1984;97(3-4):359-62. doi: 10.3109/00016488409131000.


In normal subjects the concentration ratio of secretory IgA (sIgA) to total IgA in nasal secretion was measured by means of enzyme-linked immunosorbent assays (ELISA). No marked circadian variation was disclosed in the sIgA/IgA ratio in nasal secretion.

MeSH terms

  • Adult
  • Circadian Rhythm*
  • Enzyme-Linked Immunosorbent Assay
  • Humans
  • Immunoglobulin A / analysis*
  • Immunoglobulin A, Secretory / analysis*
  • Male
  • Nasal Mucosa / analysis
  • Nasal Mucosa / metabolism*


  • Immunoglobulin A
  • Immunoglobulin A, Secretory