immunodeficiency and autoimmune disease may occur concomitantly in the same individual. some of the immunodeficiency syndromes, especially humoral defects are associated with autoimmune disorders. hematological manifestations such as thrombocytopenia and hemolytic anemia are the most common presentations. persistent antigen stimulation due to an inherent defect in the ability of the immune syst...

Severe anaphylactic or allergic reactions may occur during blood transfusion to patients who are IgA-deficient and have anti-IgA in their blood, particularly those with class-specific antibodies. These patients are a particular challenge to the hospital transfusion service when large volumes of blood components are required for transfusion support, as in liver transplantation. We have successfu...

This study was performed in 77 HIV1 seropositive adult patients to characterise the IgA hyperglobulinaemia seen in the serum during the course of HIV infection. It was shown that both IgA1 and IgA2 subclass concentrations were simultaneously increased but the IgA1 increase was predominant. Secretory IgA (SIgA) concentration was significantly increased and IgA activity to gliadin, bovine serum a...

Siegler, D. I. M. and Citron, K. M. (1974). Thorax, 29, 313-316. Serum and parotid salivary IgA in chronic bronchitis and asthma. It has been suggested that immunoglobulin A (IgA) deficiency may be an important predisposing factor to infection in chronic bronchitis and that this occurs more often in extrinsic asthmatics than in normal subjects. These claims have been investigated by measurement...

Tengvall, K. 2015. Genetic Studies in Dogs Implicate Novel Genes Involved in Atopic Dermatitis and IgA Deficiency. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine 1128. 88 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9304-2. This thesis presents genetic studies of atopic dermatitis (AD) and IgA deficiency in dogs. AD is a chronic inflammator...

Simultaneous zinc and vitamin A deficiency are common health problems in developing countries. The objective of this study was to assess the effect of vitamin A- and zinc-deficient diet on immunoglobulin A (IgA) response. Six-week-old mice were assigned into two groups receiving a normal vitamin A and zinc or low vitamin A and zinc diet for five months. Serum and intestinal mucosa IgA levels we...

BACKGROUND Anti-tissue transglutaminase (tTG) assays that use human tTG as antigen have recently become available. We evaluated commercially available assays with human tTG antigen to estimate their diagnostic accuracies and to determine whether they agree sufficiently to be used interchangeably. METHODS Ten commercially available second-generation anti-tTG assays were evaluated. The followin...

A psoriatic patient with absolute deficiency of IgA is reported. The manifestations of psoriasis appeared at the age of 6 months and proved to be resistant to various treatments. The present case report and the data available in the literature on IgA and psoriasis all converge on the hypothesis that IgA is a systemic factor which belongs to the 'off switches' of the psoriatic process.