title: Diurnal profiles of tear lysozyme and gamma A globulin.
abstract: Tear lysozyme and gamma A globulin (IgA) concentrations were determined during a 24 hour period using a simple quantitative method. Tear lysozyme was significantly elevated between the 9 and 12 AM periods, and reduced during the sleep periods from midnight to 3 AM. Tear IgA concentrations showed individual variability, but no discernible diurnal rhythm.
mesh_terms: D000328:Adult; D002940:Circadian Rhythm; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007071:Immunoglobulin A, Secretory / Q000032:analysis; D008722:Methods; D009113:Muramidase / Q000032:analysis / Q000378:metabolism*; D013666:Tears / Q000032:analysis / Q000201:enzymology* / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A; D007071:Immunoglobulin A, Secretory; D009113:Muramidase