adenosine deaminase deficiency(redirected from ADA deficiency)
adenosine deaminase deficiencyA uniformly fatal autosomal dominant [MIM 102700] disease, which consitutes 40% of patients with sever combined immunodeficiency disease.
Cellular immune dysfunction, oral candidiasis, intractable diarrhoea, failure to thrive, severe diaper rash, pseudoachondrodysplasia, death by age 2.
Lymphopaenia < 0.5 x 109/L (US, < 500 mm3), especially T cells; eosinophilia; increased adenosine and deoxyadenosine in serum and urine.
Gene therapy; rarely, bone marrow transplantation.