Secretory iga as a measure of immunocompetence

Arthur A. Stone*, Donald S. Cox, Heiddis Valdimarsdottir, John M. Neale

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)


The field of psychoimmunology has rapidly expanded in recent years and various parameters of the immune system have been examined in relation to psychological factors. The secretory immune system is one of the more interesting aspects of the entire immune system because it protects mucosal membranes from invading organisms. Stress-produced changes in secretory immunoglobulin A (s-IgA) as measured by radial immunodiffusion assays have been reported in several studies. We present three reasons why total s-IgA protein, the measure derived from radial immunodiffusion assays, may not be a reasonable measure of immune system functioning, and we suggest an alternative method for examining secretory IgA that focuses on s-IgA antibody response to a novel antigen.

Original languageEnglish
Pages (from-to)136-140
Number of pages5
JournalJournal of Human Stress
Issue number3
Publication statusPublished - 1987


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