[Radioimmunoassay of plasma triiodothyroneine in normal and different pathological cases in children].
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Biomedical subjects
Publications and source records attributed to G Dutau.
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Clinical, biologic and respiratory functional data from 132 children with alpha 1-antitrypsin (AAT) deficiency were analysed. There were 52 girls and 80 boys. The phenotypes Pi were MZ in 72 cases, S in 32 cases, SZ in 6 cases, M null in 2 cases, S null in 1 case and other Pi in 19 cases. Mean serum AAT level was 147 +/- 40 mg/100 ml. Fifty-four children presented with upper respiratory tract infections, 61 with allergic respiratory symptoms and 5 with cystic fibrosis. Respiratory function tests showed minor abnormalities: decreased FEV1/VC (77%), increased Raw (218%), trapped gas was present (44%) and Vmax 25 (57%) decreased. Finally Technetium 99 lung perfusion scan was abnormal in 9 of 15 studied cases. It is suggested that AAT deficiency may predispose to developing chronic obstructive lung disease in childhood.
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