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[Recurrent respiratory disease and IgA deficiency in infants and children (author's transl)]
Insights
In children with chronic respiratory issues, 36 out of 1300 had immunoglobulin A (IgA) deficiency. This immune deficiency, sometimes temporary, is linked to other conditions and contributes to pediatric respiratory diseases.
Area of Science:
- Pediatric Immunology
- Respiratory Medicine
- Clinical Research
Context:
- Chronic and recurrent respiratory diseases are common in children.
- Immunoglobulin A (IgA) plays a crucial role in mucosal immunity.
- Understanding immune deficiencies is vital for managing pediatric respiratory conditions.
Purpose:
- To investigate the prevalence of plasma and/or salivary IgA deficiency in pediatric patients with chronic or recurrent respiratory diseases.
- To identify associated abnormalities that may predispose children to these conditions.
- To discuss the pathogenic role of IgA deficiency in pediatric respiratory diseases.
Summary:
- A study of nearly 1,300 children with chronic/recurrent respiratory diseases identified 36 cases of plasma and/or salivary immunoglobulin A (IgA) deficiency.
- The deficiency was observed in various forms (salivary, plasma, or both) and was transitory in 10 children.
- Associated conditions like allergies, gastroesophageal reflux, alpha-1-antitrypsin deficiency, and other immunodeficiencies were present in 26 children, highlighting a multifactorial pattern.
Impact:
- Highlights the significant association between IgA deficiency and pediatric respiratory diseases.
- Emphasizes the multifactorial nature of respiratory illnesses in children.
- Suggests that IgA deficiency is a contributing factor, though its full impact requires further investigation.
Abstract:
Among nearly 1 300 infants and children studied for chronic or recurrent respiratory diseases 36 of them had plasma and/or salivary IgA deficiency. They were 1 to 13 years of age with 20 between 3 to 6 years; 11 had total, lack or traces of salivary IgA, 9 had very low or nul plasma IgA titer and 6 had both. The deficiency was transitory in 10. Associated abnormalities with potential liability for the disease: allergy, gastroesophageal reflux, alpha-1-antitrypsin deficiency and other immunologic deficiency were encountered in 26. The often multifactorial pattern of respiratory diseases in pediatrics is emphasized. The pathogenic role of IgA deficiency is discussed. Even though its responsibility is demonstrated, its real magnitude and extent requires further studies.