Title: selective IgA deficiency Long Title: IUPAC Gold Book - selective IgA deficiency DOI: 10.1351/goldbook.13668 Status: current Definition Most common form of primary immunodeficiency. Note Autoimmunity is the most prevalent manifestation of this deficiency. Individuals with SIgAD have an increased risk of developing systemic [e.g., systemic lupus erythematosus (SLE), rheumatoid arthritis (RA)] and organ-specific (e.g., celiac disease) autoimmune disorders. Related Terms - Autoimmunity: https://goldbook.iupac.org//terms/view/12925 - autoimmune: https://goldbook.iupac.org//terms/view/12918 - celiac disease: https://goldbook.iupac.org//terms/view/12992 - immunodeficiency: https://goldbook.iupac.org//terms/view/13281 - rheumatoid arthritis (RA): https://goldbook.iupac.org//terms/view/13651 - systemic: https://goldbook.iupac.org//terms/view/13708 - systemic lupus erythematosus (SLE): https://goldbook.iupac.org//terms/view/13710 Source - PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1243 (https://doi.org/10.1351/PAC-REC-11-06-03) Other Outputs - html: https://goldbook.iupac.org/terms/view/13668/html - json: https://goldbook.iupac.org/terms/view/13668/json - xml: https://goldbook.iupac.org/terms/view/13668/xml Citation: Citation: 'selective IgA deficiency' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.13668 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-08-02T02:30:30+00:00